CN102061634A

CN102061634A - Method for dyeing yarn containing cellulose fiber by reactive dye

Info

Publication number: CN102061634A
Application number: CN 201010580709
Authority: CN
Inventors: 马新华; 李汝龙; 梅建忠; 蔡慧琴; 朱礼青; 郝彦磊
Original assignee: SANDELI DYEING AND PRINTING CO Ltd
Current assignee: SANDELI DYEING AND PRINTING CO Ltd
Priority date: 2010-12-09
Filing date: 2010-12-09
Publication date: 2011-05-18
Anticipated expiration: 2030-12-09
Also published as: CN102061634B

Abstract

The invention relates to a method for dyeing a yarn containing cellulose fiber by reactive dye. In the method, the following processes are carried out on the yarn which is warped into a beam by a continuous pad dyeing mode: padding with cationic modified solution, drying, padding with staining solution, drying, baking, washing and drying, wherein, a drying cylinder is adopted in the baking process for baking in a contact manner, and the yarn is directly contacted with a high-temperature outer wall of the drying cylinder. By means of the method, continuous pad dyeing of the yarn containing cellulose fiber can be carried out by the reactive dye; the dyeing process has the advantages of relatively low baking temperature, simple baking mode and less broken yarns which are easily handled by an operator; and the adopted dye has the advantages of being free from restriction of K-type reactive dye, comprehensive color spectrum, wide selection range, simple auxiliaries without salt, urea and the like, less dye hydrolysis consumption, low wastewater chromaticity and stable dyeing quality, and deep, medium and light color can be dyed.

Description

The reactive dyes dyeing method of cellulose fiber yarn

Technical field

The present invention relates to the textile printing and dyeing field, relate in particular to dyeing and finishings knitting, the used dyed yarns of lining such as look is knitted, cowboy and handle.

Background technology

The dyeing of lining dyed yarns used, that contain cellulose fiber ingredients such as knitting, look is knitted, cowboy, as contain cotton, contain the dyeing of dyed yarns such as viscose glue, staining techniques such as hank dyeing, cheese dyeing, beam dyeing, sizing-dyeing machine dyeing adopted usually.Water consumption is big, power consumption is high because these staining techniques have, sewage discharge heavily waits significant disadvantages, the continuous knot dyeing technology of the cellulose fiber yarn that water consumption is little, production efficiency is high obtain the printing and dyeing primary study on boundary.

Patent of invention " a kind of production method of pigment dyed colored cloth " (patent No. 200610085843.1) is with the example of application of paints in the continuous knot dyeing technology of cellulose fiber yarn.In this The Application of Technology, coating can not effectively be penetrated into yarn fibers inside, causes tangible technology and quality problems thus: the one, and dyefastness is poor, and particularly crock fastness is poor, can only produce to be used for ready-made clothes polishing, the required yarn in washing aspect; The 2nd, the saturating core degree that dyes is poor; The 3rd, dye-uptake is low, difficulty height, quality instability when dying dark color, and it is serious that adhesive is stained with roller.

For cellulose fibre, REACTIVE DYES has more performance than coating on dyefastness, the saturating core degree of dyeing and dye-uptake, and cost is lower, and REACTIVE DYES is applied to the continuous knot dyeing technology of cellulose fiber yarn, will help to overcome the above problems.REACTIVE DYES is main the employing and the diverse dip method of continuous knot dyeing on yarn dyeing at present, as hank dyeing, cheese dyeing, beam dyeing etc., though and the continuous knot dyeing method is mainly adopted in the dyeing of REACTIVE DYES on lining, but the REACTIVE DYES continuous knot dyeing method of dyeing fabric mainly comprises two kinds of technologies, a kind of is the curing fixation method, be applicable to that mainly the K type dye dyes light color, be not suitable for the REACTIVE DYES of other types, chromatogram is incomplete, can not dye dark color, and baking temperature requires to reach more than 170 ℃, and this has seriously limited the application of this color-fixing method in cellulose fiber yarn continuous knot dyeing; Another kind is the vapour steaming colour fixing method, the dyeing object is behind exhaust dyeing solution, immerse fixation liquid again and realize fixation through decatize, this method itself has problems such as the dyestuff hydrolysis is many, chroma in waste water height, as the fixation that is used for yarn then also needs special-purpose yarn decatize case, and exists and broken yarn takes place in the decatize case be difficult to difficult problems such as disposal.Therefore, REACTIVE DYES is applied in the continuous knot dyeing of cellulose fiber yarn, also lacks effective process at present.

Summary of the invention

For solving the problems of the technologies described above, the purpose of this invention is to provide a kind of process that is suitable for the employing reactive dyeing of cellulose fiber yarn continuous knot dyeing.

The technical solution adopted in the present invention is: a kind of reactive dyes dyeing method of cellulose fiber yarn, warping is become the yarn of axle, mode with continuous knot dyeing, pass through following technology successively: pad cation-modified solution process, stoving process, exhaust dyeing solution process, stoving process, bake technology, washing process, stoving process, wherein, adopt drying cylinder to carry out in the mode that contact bakes in the technical process described baking, described yarn directly contacts with the high temperature outer tube wall of drying cylinder.

Preferably, cation-modified solution contains cation modifier 1～50g/L, alkaline agent 1～50g/L, bleeding agent 1～10g/L.

Preferably, the staining solution that pads is that reactive dyeing solution or coating REACTIVE DYES are bathed staining solution altogether.

Preferably, the described process conditions that bake technical process are, 150～170 ℃ of baking temperatures, bake 1～2 minute time.

The applicable object of this technical scheme is the yarn that contains cellulose fibre, comprise that whole compositions are purified cotton yarns, viscose glue yarn, TENCEL YARNS line, bamboo fibre yarn, model yarns of cellulose fibre, perhaps two or more blending or the yarn interlaced in cotton, viscose glue, day silk, bamboo fibre, the model; Perhaps all compositions are cellulose fibre and other fiber blends or yarn interlaced, as one or more fiber blends or the yarn interlaced in cellulose fibre and terylene, polyamide fibre, acrylic fibers, spandex, wool, the fiber crops.

The inherent mechanism of technical scheme that the present invention adopts is: after the cellulose fiber yarn pads cation-modified solution, dye on the cellulose fibre on the cation-modified agent molecule and be penetrated into cellulose fibre inside, and then be grafted on the cellulose fibre, and make the lotus that becomes positively charged after the cellulose fibre grafting by chemical reaction.This makes cellulose fibre when padding the solution of REACTIVE DYES, can and impel on the REACTIVE DYES and dye because of the REACTIVE DYES of the effective adsoption band negative electrical charge of attracting each other of positive and negative charge, and and then the combination that produces chemical bond.The process of this chemical bond combination is exactly the fixation process, because chemical reaction mainly is to be grafted on cation modifier group on the cellulose fibre and the chemical bond between the REACTIVE DYES in this fixation process, be different from fixation process in the conventional reactive dyeing and mainly be the chemical bond between cellulose fibre and the REACTIVE DYES, therefore this fixation is handled under 150～170 ℃ high temperature and can be finished in 1～2 minute, do not need auxiliary agents such as salt, urea, glauber salt to urge the effect of dying, do not need this color fixing condition of decatize of high humility yet.

The invention has the beneficial effects as follows: the continuous knot dyeing of cellulose fiber yarn can use REACTIVE DYES to dye, and baking temperature is relatively low, the mode that bakes is simple in the dyeing, few and the operative employee of broken yarn handles easily, thereby is particularly suitable for unique requirement of yarn continuous pad dyeing.Compare with the curing fixation method of existing dyeing fabric, restriction, the chromatogram that breaks through K type REACTIVE DYES on dyestuff uses is complete, dyestuff select for use scope wide, dark in light color can dye; Compare with the vapour steaming colour fixing method of existing dyeing fabric, make used additives simple, save auxiliary agents such as salt, urea, glauber salt, the dyestuff hydrolysis is few, chroma in waste water is low, and it is little that dyeing quality is stable, difference is criticized in front and back.

Description of drawings

Accompanying drawing 1 is the process chart of technical scheme of the present invention.

The specific embodiment

Below in conjunction with accompanying drawing, pass through specific embodiment---32 ^sThe present invention is further illustrated for the concrete implementing process of the REACTIVE DYES continuous knot dyeing of/2 textile dyed yarns.Technological process as shown in Figure 1, the main technique condition is as follows:

1, pads cation-modified solution.Through the textile raw yarn of kiering pre-treatment, one soaks one rolls cation-modified solution.Constituting of cation-modified solution: cation modifier CL-200 20g/L, caustic soda 20g/L, nonionic penetrant AG-310 3g/L.

2, oven dry: yarn is dried through steam baking tube.

3, exhaust dyeing solution: yarn one soaks one and rolls reactive dyeing solution.Constituting of staining solution: red P-2B 100% 20g/L of REACTIVE DYES.

4, oven dry: yarn is dried through steam baking tube after infrared preliminary drying device carries out preliminary drying.

5, bake: yarn bakes through special-purpose drying cylinder.Bake drying cylinder used in the technology at this and have the high temperature outer tube wall, temperature is 150-155 ℃, and yarn directly contacts with the high temperature outer tube wall when baking through this drying cylinder, reaches 1.5 minutes contact time, thereby realizes baking.

6, washing: yarn is carried out the washing of 3 lattice, and the 1st lattice hot water wash temperature is 90-95 ℃, and the 2nd lattice washing temperature is 80-85 ℃, and the 3rd lattice are cold wash.

7, oven dry: yarn is dried through steam baking tube.

Quality index and other test technology contrast situations of product see Table 1 after above technology dyeing.Technology 1 is the above technology in the table 1, the technology of test technology 2 is: (one soaks one rolls exhaust dyeing solution, red P-2B 100% 20g/L of REACTIVE DYES)-oven dry-dipping fixation solution (salt 180g/L, soda ash 20g/L, caustic soda 5g/L)-decatize (102 ℃ of temperature, time 40S)-and washing (3 lattice)-oven dry, test technology 2 is actually the technology imitation to the vapour steaming colour fixing method of dyeing fabric.The test of product colour test for using U.S. import colour photometer Gretag Macbeth Color-Eye 7000A to carry out.

The Color contrast shows, this specific embodiment is obviously dark overtesting technology 2 on product colour, the chroma in waste water of this specific embodiment is more shallow than test technology 2 in addition, and test technology 2 as commercially produce and then also need special-purpose yarn decatize case and exist broken yarn takes place in the decatize case to be difficult to difficult problems such as disposal, these these specific embodiments of combined factors there has been remarkable improvement than test technology 2, has been fit to the dyeing of yarn more.

The foregoing description only is explanation technical conceive of the present invention and characteristics, and its purpose is to allow the personage who is familiar with this technology can understand content of the present invention and enforcement according to this, can not limit protection scope of the present invention with this.All equivalences that spirit essence is done according to the present invention change or modify, and all should be encompassed within protection scope of the present invention.

Claims

1. the reactive dyes dyeing method of a cellulose fiber yarn, it is characterized in that: the yarn that warping is become axle, mode with continuous knot dyeing, pass through following technology successively: pad cation-modified solution process, stoving process, exhaust dyeing solution process, stoving process, bake technology, washing process, stoving process, wherein, adopt drying cylinder to carry out in the mode that contact bakes in the technical process described baking, described yarn directly contacts with the high temperature outer tube wall of drying cylinder.

2. the reactive dyes dyeing method of cellulose fiber yarn according to claim 1 is characterized in that: cation-modified solution contains cation modifier 1～50g/L, alkaline agent 1～50g/L, bleeding agent 1～10g/L.

3. the reactive dyes dyeing method of cellulose fiber yarn according to claim 1 is characterized in that: the staining solution in the described exhaust dyeing solution, and for reactive dyeing solution or coating REACTIVE DYES are bathed staining solution altogether.

4. the reactive dyes dyeing method of cellulose fiber yarn according to claim 1 is characterized in that: the described process conditions that bake technical process are, 150～170 ℃ of baking temperatures, bake 1～2 minute time.

5. the reactive dyes dyeing method of cellulose fiber yarn according to claim 1, it is characterized in that: described cellulose fiber yarn, comprise that whole compositions are purified cotton yarns, viscose glue yarn, TENCEL YARNS line, bamboo fibre yarn, model yarns of cellulose fibre, perhaps two or more blending or the yarn interlaced in cotton, viscose glue, day silk, bamboo fibre, the model; Perhaps all compositions are one or more fiber blends or yarn interlaced in cellulose fibre and terylene, polyamide fibre, acrylic fibers, spandex, wool, the fiber crops.