CN113802255A - Preparation method and application of polylactic acid short plush - Google Patents
Preparation method and application of polylactic acid short plush Download PDFInfo
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- CN113802255A CN113802255A CN202111084472.6A CN202111084472A CN113802255A CN 113802255 A CN113802255 A CN 113802255A CN 202111084472 A CN202111084472 A CN 202111084472A CN 113802255 A CN113802255 A CN 113802255A
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- 229920000747 poly(lactic acid) Polymers 0.000 title claims abstract description 72
- 239000004626 polylactic acid Substances 0.000 title claims abstract description 72
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- 229920000728 polyester Polymers 0.000 claims abstract description 62
- 239000004744 fabric Substances 0.000 claims abstract description 57
- 238000004043 dyeing Methods 0.000 claims abstract description 32
- 238000009941 weaving Methods 0.000 claims abstract description 22
- 238000009940 knitting Methods 0.000 claims abstract description 14
- 238000004519 manufacturing process Methods 0.000 claims abstract description 12
- 238000002074 melt spinning Methods 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims abstract description 10
- 238000010409 ironing Methods 0.000 claims abstract description 8
- 238000010008 shearing Methods 0.000 claims abstract description 8
- 230000008569 process Effects 0.000 claims abstract description 6
- 239000002994 raw material Substances 0.000 claims description 68
- 210000002268 wool Anatomy 0.000 claims description 21
- 239000000835 fiber Substances 0.000 claims description 18
- 239000000986 disperse dye Substances 0.000 claims description 9
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- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 238000007664 blowing Methods 0.000 claims description 7
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- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 2
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
- D04B1/14—Other fabrics or articles characterised primarily by the use of particular thread materials
- D04B1/16—Other fabrics or articles characterised primarily by the use of particular thread materials synthetic threads
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
- D04B1/10—Patterned fabrics or articles
- D04B1/102—Patterned fabrics or articles with stitch pattern
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
- D04B1/14—Other fabrics or articles characterised primarily by the use of particular thread materials
- D04B1/18—Other fabrics or articles characterised primarily by the use of particular thread materials elastic threads
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
- D06C27/00—Compound processes or apparatus, for finishing or dressing textile fabrics, not otherwise provided for
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2401/00—Physical properties
- D10B2401/13—Physical properties anti-allergenic or anti-bacterial
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2401/00—Physical properties
- D10B2401/16—Physical properties antistatic; conductive
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Abstract
A preparation method of polylactic acid short floss relates to the technical field of preparation methods and application of polylactic acid short floss. The invention comprises weaving, presetting, napping, dyeing, soft finishing, ironing and shearing, and finished product setting, and the invention is characterized in that: the DTY is obtained by adopting a warp knitting machine to weave, wherein the middle bottom yarns are polyester filaments, and the surface yarns are polylactic acid and polyester slice bicomponent surface yarns through melt spinning. The production by the process can achieve the effects of natural antibiosis, mite prevention, static prevention, skin friendliness and the like, so that the preparation method of the environment-friendly polylactic acid short plush is developed. The preparation method has the characteristics of environmental protection, natural antibiosis, mite prevention, static prevention, soft and smooth hand feeling and the like. A polylactic acid short plush fabric is applied to clothes and household dormitories.
Description
Technical Field
The invention relates to a preparation method and application of polylactic acid short plush.
Background
The super soft short floss is a kind of knitting warp knitting floss and its preparation method and application, the super soft short floss is a kind of (latest variety) short floss series products of short floss, and has the characters of fine and soft hand feeling, good drapability, strong wear resistance, good hygroscopicity, etc., and is used in the fields of home textile, decoration, toy, clothing, etc., and is very popular with consumers. The production process of the warp-knitted polyester ultra-soft short plush is woven by three parts of face yarn, middle yarn and bottom yarn, wherein the face type generally adopts 75dtex/144F polyester low stretch yarn, and the bottom yarn and the middle yarn adopt 50dtex/24F polyester filament yarn.
After the production of the ultra-soft short plush enters the market, people are well welcomed for four-piece set of plush products, and the plush fabric has the functions of softness and warmth retention. Chinese patent No. CN20171084036.1 (a production process of super soft short pile fabric), published documents (warp knitting polyester super soft short pile production process), polyester industry (shallow talk of warp knitting polyester super soft short pile production process), and the like. In recent years, with the increasing demand of people for four-piece clothing, i.e., velvet, as the demand of beddings is increasing, the four-piece clothing is not limited to the conventional indexes such as super-soft air permeability and heat retention, but the four-piece clothing (bed sheet, quilt cover and pillow-2) is expected to have various indexes beneficial to the health of users. Specifically, it is desirable that the four-piece sleeve has the functions of antibiosis, anti-mite, anti-static, natural plant fiber, and skin-friendly without losing the functions of softness, air permeability, heat retention, etc. Chinese patent No. CN20171084036.1 (a production process of super soft short pile fabric), published documents (warp knitting polyester super soft short pile production process), polyester industry (shallow talk of warp knitting polyester super soft short pile production process), and the like. The short plush produced by the method has good warmth retention property and softness, but does not have the functions of antibiosis, mite prevention, static prevention and natural plant fiber, and can be more skin-friendly.
Disclosure of Invention
The invention aims to provide a natural plant fiber with the functions of resisting bacteria, preventing mites, preventing static electricity and being more skin-friendly, which is favorable for realizing ideal antibacterial, anti-mite and anti-static performances on the premise of not losing the characteristics of fine and soft hand feeling, good drapability and the like. A method for preparing novel polylactic acid short plush.
The polylactic acid short floss is prepared from polylactic acid fibers. Polylactic acid is a novel biodegradable material made from starch feedstock extracted from renewable plant resources (such as corn). The starch raw material is saccharified to obtain glucose, the glucose and certain strains are fermented to prepare high-purity lactic acid, and the polylactic acid with a certain molecular weight is synthesized by a chemical synthesis method, so that the polylactic acid has good biodegradability, can be completely degraded by microorganisms in the nature after being used, finally generates carbon dioxide and water, does not pollute the environment, and is very favorable for protecting the environment. Polylactic acid is the only material with excellent antibacterial and anti-mildew properties. Polylactic acid is a skin-friendly material.
The invention aims to overcome the defects of the existing chemical fiber blanket and manufacture the polylactic acid short plush which is beneficial to keeping warm, has excellent softness, bacteriostasis, mildew resistance, static resistance and skin friendliness.
The invention aims to accomplish the task by providing a preparation method of polylactic acid short plush, which comprises surface silk, middle silk and bottom silk. The raw material of the face yarn is a double-component polylactic acid and polyester fiber DTY low stretch yarn with the specification of 50-150D/0.39-2.7dtex, and the polylactic acid DTY low stretch yarn is prepared by slicing polylactic acid and polyester, and performing double-screw melt spinning to obtain POY and then performing texturing. The outer surface is polylactic acid, and the inner surface is polyester chips. The medium silk and the bottom silk are made of FDY polyester filaments, 30-45% of the medium silk and the bottom silk fabric is made of 50-100D polyester filaments, and 70-55% of the surface silk is made of polylactic acid DTY low stretch yarns. The DTY low stretch yarn is prepared by 30-50-70-50% of polylactic acid and polyester chips.
Description of the drawings:
in order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
FIG. 1 is a schematic cross-sectional view of a polylactic acid and polyester chip bicomponent of the present invention:
FIGS. 1 to 11 polylactic acid
FIGS. 1-12 polyester fibers
Another object of the present invention is to provide a method for producing a polylactic acid short pile, which comprises the steps of;
A) preparing raw materials, namely selecting raw materials serving as surface yarns and overlapping the raw materials serving as middle yarns and bottom yarns, preparing a dual-component surface yarn containing polylactic acid and polyester chips into DTY low-stretch yarns with the specification of 50-150D/0.39-2.7dtex, wherein the polylactic acid DTY low-stretch yarns are the dual components of the polylactic acid and the polyester chips, and performing double-screw melt spinning to obtain POY and then elasticated raw materials serving as the surface yarns; and the FDY polyester filament yarn with the specification of 50-100D is used as the raw material of the middle silk and the bottom silk, wherein the raw material of the middle silk and the bottom silk contains 30-45% of the weight of the fabric, and the raw material of the face silk accounts for 70-55% of the weight of the fabric.
B) And (3) warping and weaving, namely separately warping the polylactic acid, the DTY low stretch yarn of the polyester fiber and the polyester filament yarn raw material serving as the medium yarn and the bottom yarn tissues, which are used as the raw materials of the face yarn obtained in the step A), by using a warping machine to obtain a pan head. Weaving, namely weaving the pan head obtained in the step B) by adopting a German Karl Meier warp knitting machine to obtain the gray cloth.
C) Presetting, namely setting the gray cloth on a tentering setting machine at a cloth moving speed of 60S at a temperature of 200 ℃.
D) And (4) napping, ironing and shearing by adopting a steel wire napping machine and feeding the napped fabric into the machine.
E) And printing and dyeing by adopting a high-temperature high-pressure jet overflow dyeing machine, feeding the reverse wool into a cylinder for dyeing, and feeding the forward wool into a printing machine for printing. And (3) adopting a disperse dye and adding an antibacterial agent to blend into color paste for printing and dyeing.
F) Softening treatment, namely performing softening treatment on the printed and dyed product, wherein the concentration of the softening agent is 1.5/L
G) Hot-cutting, namely blowing the fluff with different lengths on the preparation method and the application surface by using hot air, and trimming and flattening the fluff.
H) And (4) setting the finished product, wherein the temperature of the setting machine is 160 ℃, the vehicle speed is 25-30m/min, and the fabric is fed along the wool feeder to obtain the polylactic acid short hair.
Advantageous effects
The invention has the technical effect that the single polylactic acid yarn can be broken due to insufficient strength when being woven by combining the polylactic acid and polyester fiber bicomponent surface yarn. And single polyester acid fiber material with high strength and no skin affinity.
The technical scheme provided by the invention has the technical effects that: because the raw material of the dough thread adopts the raw material of polylactic acid and polyester fiber double components, the dough thread can embody excellent heat retention, softness, bacteriostasis, mildew resistance and static resistance, and can play a role in skin affinity of natural plant fibers.
The technical scheme provided by the invention has the following effects: the polylactic acid gray cloth is placed into the dye in the printing and dyeing process, and the antibacterial agent is not easy to volatilize and has a long-term antibacterial effect when permeating into the cloth at high temperature and high pressure in the printing and dyeing process. The provided processing method can ensure that the technical effect can be comprehensively embodied.
Detailed Description
The technical solutions of the embodiments are clear and fully described below. It is obvious that the described embodiments are only a part of the embodiments of the present invention, not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention based on the embodiments of the present invention.
Example 1
A) Preparing raw materials, namely overlapping the raw materials serving as a face yarn and overlapping the raw materials serving as a middle yarn and a bottom yarn, and overlapping a dual-component face yarn containing polylactic acid and polyester chips with a DTY low stretch yarn of 75D specification, wherein the polylactic acid DTY low stretch yarn is a dual component of polylactic acid and polyester chips, and is subjected to double-screw melt spinning to obtain a POY and then an elastic raw material serving as a face yarn; and the FDY polyester filament yarn with the specification of 50D is used as the raw materials of the middle silk and the bottom silk, wherein the raw materials of the middle silk and the bottom silk comprise 35% of the weight of the fabric, and the raw materials of the face silk comprise 65% of the weight of the fabric.
B) And (3) warping and weaving, namely separately warping the polylactic acid and the DTY low stretch yarn of the polyester fiber as the raw material of the face yarn and the raw material of the polyester filament yarn as the medium yarn and the bottom yarn tissues obtained in the step A) by a warping machine to obtain a pan head. Weaving, namely weaving the pan head obtained in the step B) by adopting a German Karl Meier warp knitting machine to obtain the gray cloth.
C) Presetting, namely setting the gray cloth on a tentering setting machine at a cloth moving speed of 60S at a temperature of 200 ℃.
D) And (4) napping, ironing and shearing by adopting a steel wire napping machine and feeding the napped fabric into the machine.
E) And printing and dyeing by adopting a high-temperature high-pressure jet overflow dyeing machine, feeding the reverse wool into a cylinder for dyeing, and feeding the forward wool into a printing machine for printing. And (3) adopting a disperse dye and adding an antibacterial agent to blend into color paste for printing and dyeing.
F) Softening treatment, namely performing softening treatment on the printed and dyed product, wherein the concentration of the softening agent is 1.5/L
G) Hot-cutting, namely blowing the fluff with different lengths on the preparation method and the application surface by using hot air, and trimming and flattening the fluff.
H) And (4) setting the finished product, wherein the temperature of the setting machine is 160 ℃, the vehicle speed is 25m/min, and the fabric is fed along the wool feeding machine to obtain the polylactic acid short plush.
Example 2
A) Preparing raw materials, namely overlapping the raw materials serving as a face yarn and overlapping the raw materials serving as a middle yarn and a bottom yarn, and overlapping a DTY (draw textured yarn) low stretch yarn with a 100D specification of the bi-component face yarn containing polylactic acid and polyester chips, wherein the polylactic acid DTY low stretch yarn is a bi-component of polylactic acid and polyester chips, and is subjected to double-screw melt spinning to obtain a raw material serving as the face yarn after POY (polyester pre-oriented yarn) is added; and the FDY polyester filament yarn with the specification of 50D is used as the raw materials of the middle silk and the bottom silk, wherein the raw materials of the middle silk and the bottom silk comprise 30% of the weight of the fabric, and the raw materials of the face silk comprise 70% of the weight of the fabric.
B) And (3) warping and weaving, namely separately warping the polylactic acid and the DTY low stretch yarn of the polyester fiber as the raw material of the face yarn and the raw material of the polyester filament yarn as the medium yarn and the bottom yarn tissues obtained in the step A) by a warping machine to obtain a pan head. Weaving, namely weaving the pan head obtained in the step B) by adopting a German Karl Meier warp knitting machine to obtain the gray cloth.
C) Presetting, namely setting the gray cloth on a tentering setting machine at a cloth moving speed of 60S at a temperature of 200 ℃.
D) And (4) napping, ironing and shearing by adopting a steel wire napping machine and feeding the napped fabric into the machine.
E) And printing and dyeing by adopting a high-temperature high-pressure jet overflow dyeing machine, feeding the reverse wool into a cylinder for dyeing, and feeding the forward wool into a printing machine for printing. And (3) adopting a disperse dye and adding an antibacterial agent to blend into color paste for printing and dyeing.
F) Softening treatment, namely performing softening treatment on the printed and dyed product, wherein the concentration of the softening agent is 1.5/L
G) Hot-cutting, namely blowing the fluff with different lengths on the preparation method and the application surface by using hot air, and trimming and flattening the fluff.
H) And (4) setting the finished product, wherein the temperature of the setting machine is 160 ℃, the vehicle speed is 25m/min, and the fabric is fed along the wool feeding machine to obtain the polylactic acid short plush.
Example 3
A) Preparing raw materials, namely overlapping the raw materials serving as a face yarn and overlapping the raw materials serving as a middle yarn and a bottom yarn, and overlapping a 150D DTY (draw textured yarn) low stretch yarn containing polylactic acid and polyester chips, wherein the polylactic acid DTY low stretch yarn is a polylactic acid and polyester chip double component and is subjected to double-screw melt spinning to obtain a POY (polyester oriented yarn) and then an elastic raw material serving as the face yarn; and the FDY polyester filament yarn with the specification of 100D is used as the raw materials of the middle silk and the bottom silk, wherein the raw materials of the middle silk and the bottom silk comprise 42 percent of the weight of the fabric, and the raw materials of the face silk comprise 58 percent of the weight of the fabric.
B) And (3) warping and weaving, namely separately warping the polylactic acid and the DTY low stretch yarn of the polyester fiber as the raw material of the face yarn and the raw material of the polyester filament yarn as the medium yarn and the bottom yarn tissues obtained in the step A) by a warping machine to obtain a pan head. Weaving, namely weaving the pan head obtained in the step B) by adopting a German Karl Meier warp knitting machine to obtain the gray cloth.
C) Presetting, namely setting the gray cloth on a tentering setting machine at a cloth moving speed of 60S at a temperature of 200 ℃.
D) And (4) napping, ironing and shearing by adopting a steel wire napping machine and feeding the napped fabric into the machine.
E) And printing and dyeing by adopting a high-temperature high-pressure jet overflow dyeing machine, feeding the reverse wool into a cylinder for dyeing, and feeding the forward wool into a printing machine for printing. And (3) adopting a disperse dye and adding an antibacterial agent to blend into color paste for printing and dyeing.
F) Softening treatment, namely performing softening treatment on the printed and dyed product, wherein the concentration of the softening agent is 1.5/L
G) Hot-cutting, namely blowing the fluff with different lengths on the preparation method and the application surface by using hot air, and trimming and flattening the fluff.
H) And (4) setting the finished product, wherein the temperature of the setting machine is 160 ℃, the vehicle speed is 28m/min, and the fabric is fed along the wool feeding machine to obtain the polylactic acid short plush.
Example 4
A) Preparing raw materials, namely overlapping the raw materials serving as the face yarns and overlapping the raw materials serving as the middle yarns and the bottom yarns, and overlapping the DTY low stretch yarns with the size of 68D of the bi-component face yarns containing polylactic acid and polyester chips, wherein the polylactic acid DTY low stretch yarns are bi-components of the polylactic acid and the polyester chips, and are subjected to double-screw melt spinning to obtain POY and then are added with the elastic raw materials serving as the face yarns; and the FDY polyester filament yarn with the specification of 75D is used as the raw materials of the middle silk and the bottom silk, wherein the raw materials of the middle silk and the bottom silk comprise 43 percent of the weight of the fabric, and the raw materials of the face silk comprise 57 percent of the weight of the fabric.
B) And (3) warping and weaving, namely separately warping the polylactic acid and the DTY low stretch yarn of the polyester fiber as the raw material of the face yarn and the raw material of the polyester filament yarn as the medium yarn and the bottom yarn tissues obtained in the step A) by a warping machine to obtain a pan head. Weaving, namely weaving the pan head obtained in the step B) by adopting a German Karl Meier warp knitting machine to obtain the gray cloth.
C) Presetting, namely setting the gray cloth on a tentering setting machine at a cloth moving speed of 60S at a temperature of 200 ℃.
D) And (4) napping, ironing and shearing by adopting a steel wire napping machine and feeding the napped fabric into the machine.
E) And printing and dyeing by adopting a high-temperature high-pressure jet overflow dyeing machine, feeding the reverse wool into a cylinder for dyeing, and feeding the forward wool into a printing machine for printing. And (3) adopting a disperse dye and adding an antibacterial agent to blend into color paste for printing and dyeing.
F) Softening treatment, namely performing softening treatment on the printed and dyed product, wherein the concentration of the softening agent is 1.5/L
G) Hot-cutting, namely blowing the fluff with different lengths on the preparation method and the application surface by using hot air, and trimming and flattening the fluff.
H) And (4) setting the finished product, wherein the temperature of the setting machine is 160 ℃, the vehicle speed is 28m/min, and the fabric is fed along the wool feeding machine to obtain the polylactic acid short plush.
Example 5
A) Preparing raw materials, namely overlapping the raw materials serving as a face yarn and overlapping the raw materials serving as a middle yarn and a bottom yarn, and overlapping a dual-component face yarn containing polylactic acid and polyester chips with a DTY low stretch yarn of 50D specification, wherein the polylactic acid DTY low stretch yarn is a dual component of polylactic acid and polyester chips, and is subjected to double-screw melt spinning to obtain a POY and then an elastic raw material serving as a face yarn; and the FDY polyester filament yarn with the specification of 68D is used as the raw materials of the middle silk and the bottom silk, wherein the raw materials of the middle silk and the bottom silk comprise 45% of the weight of the fabric, and the raw materials of the face silk comprise 55% of the weight of the fabric.
B) And (3) warping and weaving, namely separately warping the polylactic acid and the DTY low stretch yarn of the polyester fiber as the raw material of the face yarn and the raw material of the polyester filament yarn as the medium yarn and the bottom yarn tissues obtained in the step A) by a warping machine to obtain a pan head. Weaving, namely weaving the pan head obtained in the step B) by adopting a German Karl Meier warp knitting machine to obtain the gray cloth.
C) Presetting, namely setting the gray cloth on a tentering setting machine at a cloth moving speed of 60S at a temperature of 200 ℃.
D) And (4) napping, ironing and shearing by adopting a steel wire napping machine and feeding the napped fabric into the machine.
E) And printing and dyeing by adopting a high-temperature high-pressure jet overflow dyeing machine, feeding the reverse wool into a cylinder for dyeing, and feeding the forward wool into a printing machine for printing. And (3) adopting a disperse dye and adding an antibacterial agent to blend into color paste for printing and dyeing.
F) Softening treatment, namely performing softening treatment on the printed and dyed product, wherein the concentration of the softening agent is 1.5/L
G) Hot-cutting, namely blowing the fluff with different lengths on the preparation method and the application surface by using hot air, and trimming and flattening the fluff.
H) And (4) setting the finished product, wherein the temperature of the setting machine is 160 ℃, the vehicle speed is 30m/min, and the fabric is fed along the wool feeding machine to obtain the polylactic acid short hair.
According to GB/T20944.3-2008, evaluation of antibacterial performance of textiles part 3: shaking method, the cellulose fibers prepared in examples 1-3 of the present invention were tested for antibacterial effects of staphylococcus aureus (AATCC6538), escherichia coli (AATCC8739) and candida albicans (AATCC10231), wherein antibacterial performance was measured according to GB/T20944.3-2008, evaluation of antibacterial performance of textiles part 3. the cellulose fibers prepared in examples 1-3 of the present invention were tested for antibacterial performance, and mildew resistance was tested according to BSEN14119-2003, and the test results are shown in table 1.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The polylactic acid short plush is characterized in that the raw materials of the surface yarn are two-component polylactic acid slices and polyester slices, and the low-elasticity yarn of polylactic acid and polyester fiber with the diameter of 50-150D is obtained through melt spinning.
2. A polylactic acid plush according to claim 1, characterized by comprising the steps of;
A) preparing raw materials, namely selecting raw materials serving as surface yarns and overlapping the raw materials serving as middle yarns and bottom yarns, preparing a dual-component surface yarn containing polylactic acid and polyester chips into DTY low-stretch yarns with the specification of 50-150D/0.39-2.7dtex, wherein the polylactic acid DTY low-stretch yarns are the dual components of the polylactic acid and the polyester chips, and performing double-screw melt spinning to obtain POY and then elasticated raw materials serving as the surface yarns; and the FDY polyester filament yarn with the specification of 50-100D is used as the raw material of the middle silk and the bottom silk, wherein the raw material of the middle silk and the bottom silk contains 30-45% of the weight of the fabric, and the raw material of the face silk accounts for 70-55% of the weight of the fabric.
B) And (3) warping and weaving, namely separately warping the polylactic acid, the DTY low stretch yarn of the polyester fiber and the polyester filament yarn raw material serving as the medium yarn and the bottom yarn tissues, which are used as the raw materials of the face yarn obtained in the step A), by using a warping machine to obtain a pan head. Weaving, namely weaving the pan head obtained in the step B) by adopting a German Karl Meier warp knitting machine to obtain the gray cloth.
C) Presetting, namely setting the gray cloth on a tentering setting machine at a cloth moving speed of 60S at a temperature of 200 ℃.
D) And (4) napping, ironing and shearing by adopting a steel wire napping machine and feeding the napped fabric into the machine.
E) And printing and dyeing by adopting a high-temperature high-pressure jet overflow dyeing machine, feeding the reverse wool into a cylinder for dyeing, and feeding the forward wool into a printing machine for printing. And (3) adopting a disperse dye and adding an antibacterial agent to blend into color paste for printing and dyeing.
F) Softening treatment, namely performing softening treatment on the printed and dyed product, wherein the concentration of the softening agent is 1.5/L
G) Hot-cutting, namely blowing the fluff with different lengths on the preparation method and the application surface by using hot air, and trimming and flattening the fluff.
H) And (4) setting the finished product, wherein the temperature of the setting machine is 160 ℃, the vehicle speed is 25-30m/min, and the fabric is fed along the wool feeder to obtain the polylactic acid short hair.
3. The process according to claim 2, wherein the polylactic acid short pile DTY polyester filament accounts for 55-70% of the total amount of the woven yarn.
4. The production process as claimed in claim 2, wherein the pre-setting process temperature is 180-200 ℃ and the holding time is 60-100 s.
5. The process according to claim 2, wherein the dyeing is carried out using a disperse dye, and the antimicrobial agent is impregnated into the disperse dye.
6. The polylactic acid plush fabric is applied to clothes, underwear, sheets, quilt covers, pillows and household bedroom products according to the claims 1 to 5.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111084472.6A CN113802255A (en) | 2021-09-08 | 2021-09-08 | Preparation method and application of polylactic acid short plush |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111084472.6A CN113802255A (en) | 2021-09-08 | 2021-09-08 | Preparation method and application of polylactic acid short plush |
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