CN101654879A

CN101654879A - Process for dyeing blended fabric by using reactive dyes used for furs and acid dyes in the same dyeing bath

Info

Publication number: CN101654879A
Application number: CN200910152838A
Authority: CN
Inventors: 陈真光; 金艳元; 朱全文; 祝来燕; 章继恩; 杨男英; 郭佳燕
Original assignee: ZHEJIANG GRACE TOWEL CO Ltd
Current assignee: ZHEJIANG GRACE TOWEL CO Ltd
Priority date: 2009-09-21
Filing date: 2009-09-21
Publication date: 2010-02-24

Abstract

The invention relates to a process for dyeing blended fabric by using reactive dyes used for furs and acid dyes in the same dyeing bath, which uses the principle that aiming at the reactive dyes usedfor furs and the acid dyes, different fibers in the blended fabric have different dyeing rates, in the same dyeing bath, thereby generating different color effects. By adopting the reasonable blendingscheme, time intervals and temperature setting, the dyes form stable chemical bonds on different materials of the blended fabric for fixation, and the use of the soda in batches improves the levelingproperty, the reproducibility and the dye yield of dyeing, thus the fabric achieves excellent effects; the use of a slowly dyeing agent reduces the probability of unsuccessful dyeing; and the slow and staged temperature rise can ensure the dyeing quality. The method has simple processes, reduces the consumption of energy sources and the discharge amount of waste water, is favorable for environment protection, has vivid dyed color, less loose color and good fastness, and saves the production cost.

Description

The technology that reactive dye for wool and acidic dye co-bathing dye to BLENDED FABRIC

Technical field

The present invention relates to a kind of dyeing of BLENDED FABRIC, the technology that particularly a kind of reactive dye for wool and acidic dye co-bathing dye to BLENDED FABRIC.

Background technology

The dyeing of textiles is divided into look and knits and two kinds of process routes of piece dyeing, piece dyeing is to be made into product after practice and to dye with true qualities raw material yarn, and---post processing---dehydration---is dried 4 procedures and can be finished, and the warp thread that look is knitted usefulness then will be through boiling yarn---wash and dye that------------dehydration---is dried---winder---section warping to sizing in dehydration in post processing ... destarch---post processing---dehydration---13 procedures such as oven dry.The piece dyeing flow process is short, and then the equipment operation is few, and process time is short, electricity consumption, water, all lack with vapour, recruitment, so the income height, but piece dyeing can only dye single color, look knit then can present colorful, prismy gorgeous effect.Two kinds of each have their own merits and demerits of technology.

Cotton fiber is the most frequently used raw material in textiles, but if planned with cotton fiber and other fibers as: regenerated fiber, the fine cellulose fiber of soybean protein etc. makes up and interweaves, hands over sth. made by twisting, will do not change the cotton fiber hygroscopicity strong, comfortable and easy to wear in the gas permeability of increase textiles and higher elasticity.

In same dye bath, the raw material difference of fabric, the color effect that obtains fabric is just different.Compare with regenerated fiber as cotton, the cotton of native cellulose fibre is because of the degree of crystallinity height, to the adsorption rate of dyestuff not as good as regenerated celulose fibre so to show dye-uptake low.Though and the amino acid in the soybean fiber has various polarity group, but distribute because of in fiber, being the island shape, be subjected to the coating of polyvinyl alcohol all around, and vinal is the insoluble aldehyde radical of formaldehyde sealing formation when synthetic, so connect metachromia not as cotton fiber and regenerated fiber, but the amino that soybean fiber is contained, hydroxyl, cyano group and insoluble acetal radical, still can be by directly, activity, acidity, neutrality and disperse dyes are dying; But its dye-uptake is above because of the swelling space of regenerated celulose fibre is twice than fibre and soya, so the dyestuff adsorption rate is greater than soybean fiber, so the color that obtains is dark.So, how to utilize rational technology to bathe the maximum advantage of polychromatic dyeing method performance with one, accomplish both to improve the vivid degree of pattern, printing and dyeing efficient, can save energy environmental protection again, be current urgent problem in the industry.

Summary of the invention

The objective of the invention is to design a kind of cycle short, the vivid fastness of pattern is good, the energy-and time-economizing reactive dye for wool of environmental protection and the technology that acidic dye co-bathing dyes to BLENDED FABRIC again.Technical scheme of the present invention is so to realize:

The technology that reactive dye for wool and acidic dye co-bathing dye to BLENDED FABRIC, may further comprise the steps: in 30-50 ℃ water, washed 10-20 minute behind the BLENDED FABRIC refining bleaching that earlier will be to be dyed, in dye bath, add retarding agents under the room temperature, move the double structure REACTIVE DYES that adds reactive dye for wool and ACID DYES mixing after 3-7 minute, move after 3-7 minute BLENDED FABRIC is added wherein, and reruned 3-7 minute, add glauber salt then, move and begin after 8-12 minute to heat up, after with 0.8-1.2 ℃/minute programming rate temperature being risen to 55-65 ℃, constant temperature 25-35 minute, with 0.8-1.2 ℃/minute programming rate temperature is risen to 75-85 ℃ again, the soda ash that adds 1/5 amount after constant temperature 8-12 minute carries out fixation, the soda ash that adds 1/5 amount in operation after 8-12 minute again, continue operation adds remaining 3/5 amount after 8-12 minute soda ash then, programming rate with 0.8-1.2 ℃/minute after constant temperature 15-25 minute rises to 88-92 ℃ with temperature, adding conditioning agent makes pH value between 4-6, be incubated and cool the temperature to room temperature after 25-35 minute, and the discharging raffinate, clean and dry and can finish with 30-50 ℃ hot water at last.

As preferably, described ambient temperature is 20 ℃-40 ℃.

As preferably, the consumption of described retarding agents is 0.5-2g/L.

As preferably, total consumption of described reactive dye for wool and ACID DYES is 0.02-8%.

As preferably, the consumption standard of described soda ash is 3-30g/L.

The present invention utilize fibers different in the BLENDED FABRIC in same dye bath at the reactive dye for wool dye-uptake principle different with acidic dye co-bathing, and then produce different color effects.At room temperature through add retarding agents, add dyestuff and glauber salt, go into sample, heat up and add soda ash fixation several steps in batches, adopt rational allotment scheme, blanking time and temperature setting, dyestuff is formed on the BLENDED FABRIC different materials stablize chemical bond and fixation, in batches using of soda ash improved the level-dyeing property, reappearance and the tinctorial yield that dye, makes fabric obtain splendid effect; The use of retarding agents has reduced the probability of dyeing flower; There is the intensification in stage can guarantee dyeing quality slowly; Excess dye hydrolytic inactivation in the raffinate, pH value have reduced the pollution of discharging to environment between 4-5.The method not only technology simple, reduced energy usage and wastewater discharge, help environmental protection, and dye in bright gay color, loose colour is few, fastness good, saves production cost.

The specific embodiment

Below in conjunction with accompanying drawing,, technical scheme of the present invention is described in further detail by embodiment.

Embodiment: being base cloth with cotton, soybean fiber and regenerated celulose fibre are example by the BLENDED FABRIC that the Changing Pattern of design is interweaved.

The technology that reactive dye for wool and acidic dye co-bathing dye to BLENDED FABRIC, may further comprise the steps: in 35 ℃ water, washed 15 minutes behind the BLENDED FABRIC refining bleaching that earlier will be to be dyed, the consumption of pressing 1.2g/L under 30 ℃ the room temperature in dye bath adds retarding agents, move the double structure REACTIVE DYES that adds reactive dye for wool and ACID DYES mixing after 5 minutes, move after 5 minutes BLENDED FABRIC is added wherein, and reruned 5 minutes, add glauber salt then, move and begin after 10 minutes to heat up, after with 1 ℃/minute programming rate temperature being risen to 60 ℃, constant temperature 30 minutes, with 1 ℃/minute programming rate temperature is risen to 82 ℃ again, constant temperature adds 1/5 amount after 10 minutes soda ash carries out fixation, total consumption of soda ash is 6g/L, the soda ash that adds 1/5 amount in operation after 10 minutes again, continue operation adds remaining 3/5 amount after 10 minutes soda ash then, constant temperature after 20 minutes the programming rate with 1 ℃/minute temperature is risen to 90 ℃, adding conditioning agent makes pH value about 4, be incubated and cool the temperature to room temperature after 30 minutes, and the discharging raffinate, clean and dry and can finish with 35 ℃ hot water at last.

If producing, the differential technology that adopts vinyl sulfone(Remzaol double structure dyestuff to become acid bath increases dark effect, be warming up to 80 ℃ of segmentations and add alkali, promote the high temperature active key to continue bonding and set, the dye activity key in the high basic hydrolysis raffinate of back segment makes the dyestuff inactivation no longer have reactivity.Because of the dye matrix behind the inactivation has sulfonic group, with the weak acid dye structural similarity, so adjust that pH value reaches or near the isoelectric point of dyestuff reaction, promptly pH value about 4, then the amino in the protein fibre and dyestuff generation ionic bonding become salt type bond to reach to increase the purpose of dark joint material.

Because cotton fiber, soybean fiber have different dye-uptakes with regenerated celulose fibre to dyestuff, so method can make fabric that the pattern that different fibers constitute is manifested the different chromatic effects that is.The colour generation depth effect that dyes is: three kinds of fibers dye on all, but mostly colorant match fiber look shallow, thereby present well-bedded effect pattern according to pre-weaving.

Through check, the fastness to washing of oven dry back fabric is: 4 grades of 4 grades, sticking look fade; Colour fastness to rubbing is: dry grind 4.5 grades of 4 grades, wet-milling, requirement all is up to state standards.

Claims

1, the technology that reactive dye for wool and acidic dye co-bathing dye to BLENDED FABRIC, it is characterized in that may further comprise the steps: in 30-50 ℃ water, washed 10-20 minute behind the BLENDED FABRIC refining bleaching that earlier will be to be dyed, in dye bath, add retarding agents under the room temperature, move the double structure REACTIVE DYES that adds reactive dye for wool and ACID DYES mixing after 3-7 minute, move after 3-7 minute BLENDED FABRIC is added wherein, and reruned 3-7 minute, add glauber salt then, move and begin after 8-12 minute to heat up, after with 0.8-1.2 ℃/minute programming rate temperature being risen to 55-65 ℃, constant temperature 25-35 minute, with 0.8-1.2 ℃/minute programming rate temperature is risen to 75-85 ℃ again, the soda ash that adds 1/5 amount after constant temperature 8-12 minute carries out fixation, the soda ash that adds 1/5 amount in operation after 8-12 minute again, continue operation adds remaining 3/5 amount after 8-12 minute soda ash then, programming rate with 0.8-1.2 ℃/minute after constant temperature 15-25 minute rises to 88-92 ℃ with temperature, adding conditioning agent makes pH value between 4-6, be incubated and cool the temperature to room temperature after 25-35 minute, and the discharging raffinate, clean and dry and can finish with 30-50 ℃ hot water at last.

2, reactive dye for wool according to claim 1 and acidic dye co-bathing is characterized in that to the technology that BLENDED FABRIC dyes described ambient temperature is 20 ℃-40 ℃.

3, reactive dye for wool according to claim 1 and acidic dye co-bathing are to the technology that BLENDED FABRIC dyes, and the consumption that it is characterized in that described retarding agents is 0.5-2g/L.

4, reactive dye for wool according to claim 1 and acidic dye co-bathing are to the technology that BLENDED FABRIC dyes, and the total consumption that it is characterized in that described reactive dye for wool and ACID DYES is 0.02-8%.

5, according to the described reactive dye for wool of claim 1 and acidic dye co-bathing to the technology that BLENDED FABRIC dyes, the consumption standard that it is characterized in that described soda ash is 3-30g/L.