CN107177989A - A kind of matte simulation type superfine fiber chemical leather and its clean preparation method - Google Patents
A kind of matte simulation type superfine fiber chemical leather and its clean preparation method Download PDFInfo
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- CN107177989A CN107177989A CN201710214225.0A CN201710214225A CN107177989A CN 107177989 A CN107177989 A CN 107177989A CN 201710214225 A CN201710214225 A CN 201710214225A CN 107177989 A CN107177989 A CN 107177989A
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- D06G1/00—Beating, brushing, or otherwise mechanically cleaning or pressure cleaning carpets, rugs, sacks, hides, or other skin or textile articles or fabrics
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- D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
- D06M13/184—Carboxylic acids; Anhydrides, halides or salts thereof
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- D06M13/244—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing sulfur or phosphorus
- D06M13/248—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing sulfur or phosphorus with compounds containing sulfur
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- D06N2209/00—Properties of the materials
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Abstract
A kind of matte simulation type superfine fiber chemical leather and its clean preparation method, superfine fiber synthetic leather base cloth is impregnated by rubbing the dipping tank of liquid equipped with contracting, continous way boarding machine is entered back into, dries superfine fiber synthetic leather base cloth, obtain contracting and rub base fabric；Using the flocking production line equipped with PUR dot matrix roll coating apparatus, PUR is coated on contracting and rubbed in base fabric, then sprinkle collagenous fibres, be bonded in contracting and rub in base fabric, cooling winding is placed, obtains flocking base fabric；Removed using brushing machine in flocking base fabric without firm collagenous fibres are bonded, obtain matte simulation type superfine fiber chemical leather.The invention rubs technology using contracting, increase substantially the flexibility, gas permeability and water vapor permeability of superfine fiber synthetic leather base cloth, PUR dot matrix roller coat complex techniques are used again, collagenous fibres are compounded on superfine fiber synthetic leather base cloth, the matte simulation type superfine fiber chemical leather that outward appearance exceedes natural leather similar to natural leather, mechanical property, sanitation performance is obtained.
Description
Technical field
The present invention relates to superfine fiber chemical leather technical field, more particularly to a kind of matte simulation type superfine fiber chemical leather
And its clean preparation method.
Background technology
Due to for producing the raw material skin resource-constrained of natural leather, and natural leather production be a high energy consumption,
The process of high pollution, can bring great pollutional load to environment.In recent years, the developed country such as European Union to natural leather in itself
Security it is also proposed new standard, Cr (VI), azo dyes, pentachlorophenol (PCP) present in strict limitation natural leather
And the toxic chemical such as free formaldehyde.From the perspective of raw material skin resource, environmental protection, product safety and market, natural skin
The production of leather and using all suffer from greatly challenge.
Based on above reason, countries in the world are all accelerating the new material of the new replacement natural leather of exploitation.Wherein ultra-fine fibre
The exploitation of synthetic leather is tieed up, can be rated as the model that new material is combined with each other.Superfine fiber chemical leather is non-woven for base with superfine fibre
Material, polyurethane slurry of the dipping with open-celled structure, is processed through a series of complex technique.Because the diameter of superfine fibre is several
Nano-grade size is reached, there is huge specific surface area, it is extremely similar to the pencil collagenous fibres in natural leather, physical
Energy aspect can be compared favourably with natural leather, and it is completed by the process of " imitated " to " conversion ", as replacement natural leather
Optimal material.
China is the big producer of natural leather in the world, production ranking the first in the world, yet with raw material skin
Shortage and problem of environmental pollution, the continuous downturn of development of China leather industry are inevitable.Be worth we use for reference be Japan into
The experience of work(, when Japanese leather industry fails, takes the lead in developing high performance superfine fiber chemical leather, day has been filled up in time
The blank left during right Leather Industry decline, suddenly becomes the country the most advanced of superfine fiber chemical leather technology in the world, and
The high-end market of high-end superfine fiber chemical leather product is monopolized.
It is not unique, but has its counterpart, and China is also the big producer of synthetic leather, its production ranking the first in the world.Synthetic leather artificial leather
Information Network data display, China's artificial leather synthetic leather consumption figure in 2013 is 42.92 hundred million square metres, and 10.42% is increased compared with last year.
The driving made the transition based on synthetic leather industry industrial upgrading, the demand speedup of high-end superfine fiber chemical leather is flat apparently higher than industry
Equal level.Superfine fiber chemical leather in 2011 enters national product and counts catalogue, and annual total import and export volume 36.36 hundred million is beautiful
Member, 10.7 hundred million meters of its middle outlet (56.96 ten thousand tons), has increased by 12.96% on a year-on-year basis, export volume account for the 23.36% of total output, go out
30.4 hundred million dollars of the volume of trade of mouth, increases by 35.11% on a year-on-year basis, has initially formed the history new stage of development third generation product, and will
The bright spot of investment as new spectra.According to the analysis of artificial leather synthetic leather Professional Committee of Chinese Plastics processing industry association,
Domestic superfine fiber chemical leather effective capacity is about 1.2 hundred million square metres within 2013, and future market demand growth speed is up to
More than 20%.
However, the superfine fiber chemical leather product of China, has been at the states such as the low and middle-grade positions of like product, and Japan
Family compares, and still has sizable gap.Market by early stage is teaching and research and analyzes, and to accelerate China's superfine fiber chemical leather production
Product lifting, technological progress and industrial upgrading, it is necessary to solve main engineering challenge.At present, matte type superfine fibre is synthesized
Leather product is compared with natural leather, however it remains following not enough：(1) product pliability is not enough, and good hand feeling is poor；(2)
The gas permeability and water vapor permeability of product are smaller, cause its sanitation performance poor；(3) cashmere density of product surface is smaller, surface
Feel and simulation quality it is poor.
The content of the invention
It is an object of the invention to provide a kind of matte simulation type superfine fiber chemical leather and its clean preparation method.
To achieve the above object, the present invention is adopted the following technical scheme that：
A kind of clean preparation method of matte simulation type superfine fiber chemical leather, comprises the following steps：
(1) base fabric contracting is rubbed：Superfine fiber synthetic leather base cloth is impregnated by rubbing the dipping tank of liquid equipped with contracting, then entered back into
Continous way boarding machine, under conditions of 55~75 DEG C, dries superfine fiber synthetic leather base cloth, completes contracting and rubs process, is contracted
Rub base fabric；
(2) base fabric flocking：Using the flocking production line equipped with PUR dot matrix roll coating apparatus, it is in 75~185 DEG C, coating weight
Under conditions of 25~200g/ ㎡, PUR is coated on contracting and rubbed in base fabric, PUR is rubbed the PUR for forming rule distribution in base fabric in contracting
Glue point, then collagenous fibres are sprinkled, it is bonded in contracting and rubs in base fabric, then cooling winding, places, obtain flocking base fabric at room temperature；
(3) bristle raising：Removed using brushing machine without the firm collagenous fibres of bonding in flocking base fabric, and make surface
Collagenous fibres fine hair is erected, and obtains matte simulation type superfine fiber chemical leather.
Of the invention further improve be, superfine fiber synthetic leather base cloth be figured type superfine fiber synthetic leather base cloth,
Non- figured type superfine fiber synthetic leather base cloth or tangerine valve type superfine fiber synthetic leather base cloth.
Further improve of the invention is that the temperature that liquid is rubbed in contracting is 30~35 DEG C.
Further improve of the invention is, controls contracting to rub the pickup of liquid by roll during dipping and is synthesized for superfine fibre
The 80~90% of leather base cloth quality.
Further improve of the invention is that the contracting is rubbed liquid and is prepared by the following method：By in terms of mass fraction, by poplar
5~10 parts of plum tannin extract, 1~2 part of valonea extract, 0.1~0.3 part of sodium citrate, 2~3 parts of sulfated castor oil, sulfiting fish
70~100 parts of mixing of 0.5~1 part of oil and water, stir, obtain contracting and rub liquid.
Of the invention further improve be, superfine fiber synthetic leather base cloth after contracting is rubbed, length reduction 5~
10%, reduced width 1~3%, thickness increase by 5~10%, pliability improves 20~50%, and water vapor permeability improves 20~50%.
Further improve of the invention is that collagenous fibres are 2~5mm of length collagen chopped fiber.
Further improve of the invention is that the time placed at room temperature is 24~48h.
Further improve of the invention is that PUR dot matrix roll coating apparatus includes press disc type PUR hot melt adhesive machines and PUR dot matrix
Roll coater two parts；Wherein, press disc type PUR hot melt adhesive machines include charging basket and heating part, and heating part is aluminium alloy heating dish,
Charging basket is built with PUR, and heating dish is pressed into PUR charging baskets from the top down when using, and heating dish is located above PUR, when heating dish plus
When hot, one layer of PUR of charging basket internal upper part is contacted and melted with heating dish；PUR dot matrix roll coaters are the rollers with heated constant temperature function
Painting machine, including with reeded feed roller, after the PUR of liquid enters the hopper of PUR dot matrix roll coaters, when feed roller is rotated
Bring the PUR of liquid into grooves, connect while wiping liquid PUR in unnecessary liquid PUR, groove off by scraper plate rubbing base fabric with contracting
When touching, liquid PUR is transferred to contracting and rubbed in base fabric.
A kind of matte simulation type superfine fiber chemical leather, the synthetic leather has two layer composite structure, and upper strata is collagenous fibres,
Lower floor is superfine fiber synthetic leather base cloth, and gas permeability is more than 8000ml/cm2H, water vapor permeability is more than 2.2mg/cm2·h。
Compared with prior art, the device have the advantages that：
First, rubbing liquid using contracting, technology, the length reduction 5~10% of superfine fiber synthetic leather base cloth, width are rubbed by contracting
1~3% is reduced, thickness increase by 5~10%, pliability improves 20~50%, and water absorption rate improves 5~10%, and water vapor permeability is improved
20~50%.
Second, using the flocking production line equipped with PUR dot matrix roll coating apparatus, by PUR dot matrix roller coat complex techniques, by glue
Fibrillation is compounded on superfine fiber synthetic leather base cloth, forms the outward appearance similar to natural leather.Advantage is as follows：(1) PUR for
The bonding of superfine fiber synthetic leather base cloth and collagenous fibres, the adhesive effect that not only there is physics, there is also the bonding of chemistry work
With making its bonding strength high, water resistance is splendid, 10h is soaked in 95 DEG C of hot water to come unglued；(2) dot matrix roller coat makes PUR exist
Formed on superfine fiber synthetic leather base cloth after the PUR glue points (i.e. PUR dot matrix) of rule distribution, composite collagen fiber, finished product hardness
Vary less so that final products it is soft plentiful.
Third, the present invention rubs technology using contracting, increase substantially the flexibility of superfine fiber synthetic leather base cloth, gas permeability and
Water vapor permeability, then using reaction type polyurethane hot-melt adhesive (abbreviation PUR) dot matrix roller coat complex technique, collagenous fibres are compounded in super
On fine fibre synthetic leather base cloth, obtain outward appearance and exceed natural matte similar to natural leather, mechanical property, sanitation performance
The matte simulation type superfine fiber chemical leather of leather.
Further, liquid is rubbed using the contracting containing myrica extract, valonea extract, sulfated castor oil and sulfited fish oil
Carry out contracting to rub, action principle is as follows：(1) during contracting is rubbed, tannin extract (myrica extract and valonea extract) energy in liquid is rubbed in contracting
Superfine fiber synthetic leather base cloth is produced effective contraction, make the increase of its thickness, and superfine fiber synthetic leather base cloth can be increased
In hydrophily, improve its water absorption rate and water vapor permeability, so as to improve the sanitation performance of superfine fiber synthetic leather base cloth；(2)
During contracting is rubbed, the contract sulfated castor oil and sulfited fish oil rubbed in liquid can make fiber obtain it is effective scattered and
Lubricate, and line passage is rubbed in continous way boarding machine and fall soft drying, can effectively improve the softness of superfine fiber synthetic leather base cloth
Degree.
Matte simulation type superfine fiber chemical leather produced by the invention, is a kind of flexible compound with two layer composite structure
Material, upper strata is collagenous fibres, and lower floor is superfine fiber synthetic leather base cloth, outward appearance be similar to natural leather, mechanical property,
Sanitation performance exceedes natural leather.The matte simulation type superfine fiber chemical leather production process clean environment firendly, gas permeability is big
In 8000ml/cm2H, water vapor permeability is more than 2.2mg/cm2H, available for clothes, shoemaking, automotive trim and all kinds of seats
Skin material.
Embodiment
Below by embodiment, the present invention is described in further detail, but the present invention is not only limited in these
Example.
Embodiment 1
(1) base fabric contracting is rubbed：Superfine fiber synthetic leather base cloth is rubbed into the dipping tank of liquid by being contracted equipped with 30 DEG C, and passes through roll
The pickup for controlling contracting to rub liquid is the 87% of superfine fiber synthetic leather base cloth quality, continous way boarding machine is entered back into, at 60 DEG C
Under the conditions of, superfine fiber synthetic leather base cloth is thoroughly dried, complete contracting and rub process, obtain contracting and rub base fabric；
Wherein, superfine fiber synthetic leather base cloth is figured type superfine fiber synthetic leather base cloth.
The contracting is rubbed liquid and is prepared by the following method：By in terms of mass fraction, by 5 parts of myrica extract, 1 part of valonea extract,
0.3 part of sodium citrate, 2.5 parts of sulfated castor oil, 70 parts of mixing of 1 part of sulfited fish oil and water are stirred until property
Material dissolving, you can obtain contracting and rub liquid.
(2) base fabric flocking：It is 25g/ ㎡ in 75 DEG C, coating weight using the flocking production line equipped with PUR dot matrix roll coating apparatus
Under conditions of, PUR (reaction type polyurethane hot-melt adhesive) is coated on contracting and rubbed in base fabric, PUR is rubbed in contracting and rule is formed in base fabric
The PUR glue points (i.e. PUR dot matrix) of distribution, then the collagenous fibres that length is 2~5mm are sprinkled, it is bonded in contracting and rubs in base fabric, Ran Houleng
But wind, 24h is placed at room temperature, obtain flocking base fabric；
(3) bristle raising：Removed using brushing machine without the firm collagenous fibres of bonding in flocking base fabric, and make surface
Collagenous fibres fine hair is erected, and obtains matte simulation type superfine fiber chemical leather.
Embodiment 2
(1) base fabric contracting is rubbed：Superfine fiber synthetic leather base cloth is rubbed into the dipping tank of liquid by being contracted equipped with 35 DEG C, and passes through roll
The pickup for controlling contracting to rub liquid is the 90% of superfine fiber synthetic leather base cloth quality, continous way boarding machine is entered back into, at 55 DEG C
Under the conditions of, superfine fiber synthetic leather base cloth is thoroughly dried, complete contracting and rub process, obtain contracting and rub base fabric；
Wherein, superfine fiber synthetic leather base cloth is non-figured type superfine fiber synthetic leather base cloth.
The contracting is rubbed liquid and is prepared by the following method：By in terms of mass fraction, by 8 parts of myrica extract, 2 parts of valonea extract,
0.2 part of sodium citrate, 3 parts of sulfated castor oil, 100 parts of mixing of 0.5 part of sulfited fish oil and water are stirred until property
Material dissolving, you can obtain contracting and rub liquid.
(2) base fabric flocking：It is 60g/ in 185 DEG C, coating weight using the flocking production line equipped with PUR dot matrix roll coating apparatus
Under conditions of ㎡, PUR (reaction type polyurethane hot-melt adhesive) is coated on contracting and rubbed in base fabric, PUR is rubbed in contracting and rule are formed in base fabric
The PUR glue points (i.e. PUR dot matrix) of distribution are restrained, then sprinkle the collagenous fibres that length is 2~5mm, contracting is bonded in and rubs in base fabric, then
Cooling winding, places 48h, obtains flocking base fabric at room temperature；
(3) bristle raising：Removed using brushing machine without the firm collagenous fibres of bonding in flocking base fabric, and make surface
Collagenous fibres fine hair is erected, and obtains matte simulation type superfine fiber chemical leather.
Embodiment 3
(1) base fabric contracting is rubbed：Superfine fiber synthetic leather base cloth is rubbed into the dipping tank of liquid by being contracted equipped with 32 DEG C, and passes through roll
The pickup for controlling contracting to rub liquid is the 80% of superfine fiber synthetic leather base cloth quality, continous way boarding machine is entered back into, at 65 DEG C
Under the conditions of, superfine fiber synthetic leather base cloth is thoroughly dried, complete contracting and rub process, obtain contracting and rub base fabric；
Wherein, superfine fiber synthetic leather base cloth is tangerine valve type superfine fiber synthetic leather base cloth.
The contracting is rubbed liquid and is prepared by the following method：By in terms of mass fraction, by 10 parts of myrica extract, valonea extract 1.5
Part, 0.1 part of sodium citrate, 2 parts of sulfated castor oil, the 80 parts of mixing of 0.6 part of sulfited fish oil and water, stirring is until all
Material dissolution, you can obtain contracting and rub liquid.
(2) base fabric flocking：It is 100g/ in 100 DEG C, coating weight using the flocking production line equipped with PUR dot matrix roll coating apparatus
Under conditions of ㎡, PUR (reaction type polyurethane hot-melt adhesive) is coated on contracting and rubbed in base fabric, PUR is rubbed in contracting and rule are formed in base fabric
The PUR glue points (i.e. PUR dot matrix) of distribution are restrained, then sprinkle the collagenous fibres that length is 2~5mm, contracting is bonded in and rubs in base fabric, then
Cooling winding, places 30h, obtains flocking base fabric at room temperature；
(3) bristle raising：Removed using brushing machine without the firm collagenous fibres of bonding in flocking base fabric, and make surface
Collagenous fibres fine hair is erected, and obtains matte simulation type superfine fiber chemical leather.
Embodiment 4
(1) base fabric contracting is rubbed：Superfine fiber synthetic leather base cloth is rubbed into the dipping tank of liquid by being contracted equipped with 33 DEG C, and passes through roll
The pickup for controlling contracting to rub liquid is the 85% of superfine fiber synthetic leather base cloth quality, continous way boarding machine is entered back into, at 750 DEG C
Under the conditions of, superfine fiber synthetic leather base cloth is thoroughly dried, complete contracting and rub process, obtain contracting and rub base fabric；
Wherein, superfine fiber synthetic leather base cloth is figured type superfine fiber synthetic leather base cloth.
The contracting is rubbed liquid and is prepared by the following method：By in terms of mass fraction, by 6 parts of myrica extract, 1 part of valonea extract,
0.1 part of sodium citrate, 2.5 parts of sulfated castor oil, the 90 parts of mixing of 0.8 part of sulfited fish oil and water, stirring is until all
Material dissolution, you can obtain contracting and rub liquid.
(2) base fabric flocking：It is 150g/ in 130 DEG C, coating weight using the flocking production line equipped with PUR dot matrix roll coating apparatus
Under conditions of ㎡, PUR (reaction type polyurethane hot-melt adhesive) is coated on contracting and rubbed in base fabric, PUR is rubbed in contracting and rule are formed in base fabric
The PUR glue points (i.e. PUR dot matrix) of distribution are restrained, then sprinkle the collagenous fibres that length is 2~5mm, contracting is bonded in and rubs in base fabric, then
Cooling winding, places 35h, obtains flocking base fabric at room temperature；
(3) bristle raising：Removed using brushing machine without the firm collagenous fibres of bonding in flocking base fabric, and make surface
Collagenous fibres fine hair is erected, and obtains matte simulation type superfine fiber chemical leather.
Embodiment 5
(1) base fabric contracting is rubbed：Superfine fiber synthetic leather base cloth is rubbed into the dipping tank of liquid by being contracted equipped with 35 DEG C, and passes through roll
The pickup for controlling contracting to rub liquid is the 82% of superfine fiber synthetic leather base cloth quality, continous way boarding machine is entered back into, at 70 DEG C
Under the conditions of, superfine fiber synthetic leather base cloth is thoroughly dried, complete contracting and rub process, obtain contracting and rub base fabric；
Wherein, superfine fiber synthetic leather base cloth is tangerine valve type superfine fiber synthetic leather base cloth.
The contracting is rubbed liquid and is prepared by the following method：By in terms of mass fraction, by 7 parts of myrica extract, 2 parts of valonea extract,
0.2 part of sodium citrate, 3 parts of sulfated castor oil, 85 parts of mixing of 0.9 part of sulfited fish oil and water are stirred until property
Material dissolving, you can obtain contracting and rub liquid.
(2) base fabric flocking：It is 200g/ in 155 DEG C, coating weight using the flocking production line equipped with PUR dot matrix roll coating apparatus
Under conditions of ㎡, PUR (reaction type polyurethane hot-melt adhesive) is coated on contracting and rubbed in base fabric, PUR is rubbed in contracting and rule are formed in base fabric
The PUR glue points (i.e. PUR dot matrix) of distribution are restrained, then sprinkle the collagenous fibres that length is 2~5mm, contracting is bonded in and rubs in base fabric, then
Cooling winding, places 40h, obtains flocking base fabric at room temperature；
(3) bristle raising：Removed using brushing machine without the firm collagenous fibres of bonding in flocking base fabric, and make surface
Collagenous fibres fine hair is erected, and obtains matte simulation type superfine fiber chemical leather.
The PUR dot matrix roll coating apparatus of the present invention includes press disc type PUR hot melt adhesive machines and PUR dot matrix roll coater two parts；Its
In, press disc type PUR hot melt adhesive machines include charging basket and heating part, heating part be an aluminium alloy heating dish, charging basket built with
PUR, heating dish is pressed into PUR charging baskets from the top down when using, and heating dish is located above PUR, when heating dish is heated, in charging basket
Only one layer of PUR is contacted with heating dish above, is made up to fusing point and is melted, and the PUR after fusing squeezes into PUR dot matrix by gear pump
In the hopper of roll coater；Using press disc type PUR hot melt adhesive machines, the PUR of bottom is not heated now in charging basket, and how much is needs during production
PUR, how many PUR melted, have O-ring sealing between heating dish and charging basket inwall so that the liquid PUR of fusing will not connect with air
Touch, it is ensured that the requirement of PUR use conditions；PUR dot matrix roll coaters are the roll coaters with heated constant temperature function, including with fluted
Feed roller, the array pattern of the groove on the feed roller of different model it is different (the feed roller upper groove of different model
Depth and of different sizes, but groove part is regular arrangement), when the PUR of liquid enter the hopper of PUR dot matrix roll coaters with
Afterwards, liquid is kept under constant temperature, feed roller brings the PUR of liquid into grooves when rotating, while (being connect by scraper plate with feed roller
Touch) wipe unnecessary liquid PUR off, but the liquid PUR in groove can be stayed, and when rubbing base fabric with contracting and contacting, liquid PUR is just
Contracting can be transferred to rub in base fabric.Because the battle array arrangement mode of the groove on the feed roller of different model is different, so using different
The PUR glue points that different lattice arrangements are formed in base fabric will be rubbed after the feed roller of model, roller coat in contracting, these PUR glue points are arrived
Adhesive effect.Because the PUR glue points of PUR dot matrix roller coat formation are distributed in discontinuous dot matrix, that is to say, that form and do not connect
Continuous glue-line, so glue-line will not have a strong impact on the gas permeability and water vapor permeability that base fabric is rubbed in contracting.In other words, as passing through PUR
The matte simulation type superfine fiber chemical leather that dot matrix roller coating technology is obtained has good gas permeability and water vapor permeability.
Superfine fiber synthetic leather base cloth in the embodiment of the present invention after the contracting in step (1) is rubbed, length reduction 5~
10%, reduced width 1~3%, thickness increase by 5~10%, pliability improves 20~50%, and water vapor permeability improves 20~50%.
The present invention rubs technology using special contracting, increases substantially flexibility, the gas permeability of superfine fiber synthetic leather base cloth
And water vapor permeability, then using reaction type polyurethane hot-melt adhesive (abbreviation PUR) dot matrix roller coat complex technique, collagenous fibres are compounded in
On superfine fiber synthetic leather base cloth, obtain outward appearance and exceed natural suede similar to natural leather, mechanical property, sanitation performance
The matte simulation type superfine fiber chemical leather of leather.The matte simulation type superfine fiber chemical leather production process clean environment firendly,
Gas permeability is more than 8000ml/cm2H, water vapor permeability is more than 2.2mg/cm2H, available for clothes, shoemaking, automotive trim and each
The skin material of class seat.
Claims (10)
1. a kind of clean preparation method of matte simulation type superfine fiber chemical leather, it is characterised in that comprise the following steps：
(1) base fabric contracting is rubbed：Superfine fiber synthetic leather base cloth is impregnated by rubbing the dipping tank of liquid equipped with contracting, then entered back into continuous
Formula boarding machine, under conditions of 55~75 DEG C, dries superfine fiber synthetic leather base cloth, completes contracting and rubs process, obtains contracting and rub base
Cloth；
(2) base fabric flocking：Using the flocking production line equipped with PUR dot matrix roll coating apparatus, 75~185 DEG C, coating weight be 25~
Under conditions of 200g/ ㎡, PUR is coated on contracting and rubbed in base fabric, PUR is rubbed the PUR glue points for forming rule distribution in base fabric in contracting,
Collagenous fibres are sprinkled again, contracting is bonded in and rubs in base fabric, and then cooling winding, places, obtain flocking base fabric at room temperature；
(3) bristle raising：Removed using brushing machine without the firm collagenous fibres of bonding in flocking base fabric, and make the collagen on surface
Fibre fluff is erected, and obtains matte simulation type superfine fiber chemical leather.
2. a kind of clean preparation method of matte simulation type superfine fiber chemical leather according to claim 1, its feature exists
In, superfine fiber synthetic leather base cloth be figured type superfine fiber synthetic leather base cloth, non-figured type superfine fiber synthetic leather base cloth or
Tangerine valve type superfine fiber synthetic leather base cloth.
3. a kind of clean preparation method of matte simulation type superfine fiber chemical leather according to claim 1, its feature exists
In the temperature that liquid is rubbed in contracting is 30~35 DEG C.
4. a kind of clean preparation method of matte simulation type superfine fiber chemical leather according to claim 1, its feature exists
In the pickup for controlling contracting to rub liquid by roll during dipping is the 80~90% of superfine fiber synthetic leather base cloth quality.
5. a kind of clean preparation method of matte simulation type superfine fiber chemical leather according to claim 1, its feature exists
In the contracting is rubbed liquid and is prepared by the following method：By in terms of mass fraction, by 5~10 parts of myrica extract, valonea extract 1~2
70~100 parts of part, 0.1~0.3 part of sodium citrate, 2~3 parts of sulfated castor oil, 0.5~1 part of sulfited fish oil and water
Mixing, stirs, obtains contracting and rub liquid.
6. a kind of clean preparation method of matte simulation type superfine fiber chemical leather according to claim 1, its feature exists
In, superfine fiber synthetic leather base cloth is after contracting is rubbed, and length reduction 5~10%, reduced width 1~3%, and thickness increase by 5~
10%, pliability improves 20~50%, and water vapor permeability improves 20~50%.
7. a kind of clean preparation method of matte simulation type superfine fiber chemical leather according to claim 1, its feature exists
In collagenous fibres are 2~5mm of length collagen chopped fiber.
8. a kind of clean preparation method of matte simulation type superfine fiber chemical leather according to claim 1, its feature exists
In the time placed at room temperature is 24~48h.
9. a kind of clean preparation method of matte simulation type superfine fiber chemical leather according to claim 1, its feature exists
In PUR dot matrix roll coating apparatus includes press disc type PUR hot melt adhesive machines and PUR dot matrix roll coater two parts；Wherein, press disc type PUR heat
Glue-smelting machine include charging basket and heating part, heating part be aluminium alloy heating dish, charging basket built with PUR, when using heating dish from
On press downward in PUR charging baskets, heating dish be located at PUR above, when heating dish heat, one layer of PUR of charging basket internal upper part with heat
Disk is contacted and melted；PUR dot matrix roll coaters are the roll coaters with heated constant temperature function, including with reeded feed roller, when
The PUR of liquid enters after the hopper of PUR dot matrix roll coaters, and feed roller brings the PUR of liquid into grooves when rotating, while by scraping
Plate wipes liquid PUR in unnecessary liquid PUR, groove off when rubbing base fabric with contracting and contacting, and liquid PUR is transferred to contracting and rubs base fabric
On.
10. one kind is based on matte simulation type superfine fiber chemical leather made from any one production method in claim 1-9, its
It is characterised by, the synthetic leather has two layer composite structure, upper strata is collagenous fibres, and lower floor is superfine fiber synthetic leather base cloth, thoroughly
It is quick to take offense in 8000ml/cm2H, water vapor permeability is more than 2.2mg/cm2·h。
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| CN109457503A (en) * | 2018-11-30 | 2019-03-12 | 东莞市合森纺织品有限公司 | The flocking method of spunlace non-woven cloth |
| CN116289250A (en) * | 2023-03-13 | 2023-06-23 | 江苏科美新材料有限公司 | Manufacturing method of tannin extract modified suede type superfine fiber synthetic leather |
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| CN107177989B (en) | 2019-08-23 |
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