CN102899925A

CN102899925A - Low-temperature reactive-dye dyeing technology

Info

Publication number: CN102899925A
Application number: CN2012101802763A
Authority: CN
Inventors: 陈永伟; 沈国江; 杨永健
Original assignee: ZHEJIANG DANENG TEXTILE PRINTING AND DYEING CO Ltd
Current assignee: ZHEJIANG DANENG TEXTILE PRINTING AND DYEING CO Ltd
Priority date: 2012-05-31
Filing date: 2012-05-31
Publication date: 2013-01-30

Abstract

The invention discloses a low-temperature reactive-dye dyeing technology. The low-temperature reactive-dye dyeing technology comprises the following steps of cloth preparation, seam allowance, pre-treatment, water washing, deoxization, water washing, dyeing, hot-water washing neutralization, soaping, water washing, unloading, drying, setting, examination, packaging and warehousing. The low-temperature reactive-dye dyeing technology is characterized in that 1), in the pre-treatment, 1g/L of caustic soda flakes having a concentration of 96%, 5g/L of hydrogen peroxide having a concentration of 27.5%, 1g/L of a scouring agent, 1g/L of a hydrogen peroxide stabilizer and 1g/L of a chelating agent are used; water is used as a solvent; and a bath ratio is 1: 15; 2), a dyeing formula comprises 30g/L of anhydrous sodium sulphate, 5.0g/L of soda ash, 1.0g/L of caustic soda flakes and a low-temperature reactive-dye system L comprising 1.5 to 2.5% of OWF; and the materials adopted by the dyeing formula are processed into slurry under the conditions of a fixation temperature of 40 DEG C and a material melting temperature of 40 to 50 DEG C and the slurry is poured uniformly into a dyeing system in 20min, wherein the anhydrous sodium sulphate is completely added into the dyeing system in a backflow way for 20min; the soda ash is completely added into the dyeing system in a backflow way by a single step for 15min; and the caustic soda flakes are completely added into the dyeing system by two processes, wherein in the first process, 1/5 of the caustic soda flakes is completely added into the dyeing system for 10min and 4/5 of the caustic soda flakes is completely added into the dyeing system for 10min; 3), after a dip-dyeing process lasting for 50min, a sample comparison process is carried out; and 4), a soaping process is carried out at a temperature of 80 DEG C for 15min. The low-temperature reactive-dye system L is produced by Liyuan (Hubei) Co., Ltd.

Description

The low form Dyeing Technology of Reactive Dyes

Technical field

The present invention relates to a kind of staining technique, particularly a kind of low form REACTIVE DYES technology.

Background technology

The middle Resist Reactive Dyes of 60 ℃ of fixation, hyperchromatic Na ₂CO ₃Consumption is at 20-25g/L, and consumption is higher, and the dyestuff migration property is general, more than the animal migration that adds behind the alkali of the stage of dying lower, thereby on dye irregular, particularly to viscose fiber fabric by being bad.When soaping, because dyestuff is not easy to clean, the temperature of soaping is higher, and dark kind need repeatedly be soaped, and could obtain good COLOR FASTNESS.

Summary of the invention

The objective of the invention is provides a kind of color fixing temperature low for the deficiency that solves above-mentioned technology, uses soda ash few, and the good low form Dyeing Technology of Reactive Dyes of COLOR FASTNESS.

In order to achieve the above object, the low form Dyeing Technology of Reactive Dyes that the present invention is designed, it mainly may further comprise the steps: standby cloth-margin to seam-pre-treatment-washing-deoxygenation-washing-dyeing-hot water wash cylinder-dehydration-typing-check-packing-warehouse-in that neutralizes-soap-wash-go out, and when it is characterized in that pre-treatment, working concentration is 96% alkali 1g/L, concentration is 27.5% hydrogen peroxide 5g/L, scouring agent 1g/L, hydrogen peroxide stabilizer 1g/L, chelating agent 1g/L, solvent is water, bath raio 1:15; Dyeing recipe is low form REACTIVE DYES L series 1.5%-2.5%OWF, glauber salt 30g/L, soda ash 5.0g/L, sheet alkali 1.0g/L, color fixing temperature are 40 ℃, 40-50 ℃ of material temperature, the furnishing pulpous state, even material feeding 20min is when adding glauber salt, returning stream 20min adds, soda ash need be returned stream 15min, once adds, and sheet alkali adds at twice, the first time 1/5,10min adds; The second time 4/5,10min adds, and to sample, wherein said soaping is 80 ℃ of lasting 15min behind the dip-dye 50min.Wherein said low form REACTIVE DYES L series is produced by Li Yuan (Hubei) Co., Ltd.

Dying temperature on the resulting this low form Dyeing Technology of Reactive Dyes the best of the present invention is 40 ℃, and the main alkaline agent that fixation is used is Na ₂CO ₃+ NaOH can reduce the consumption of soda ash.Compare hyperchromatic Na with the middle Resist Reactive Dyes of 60 ℃ of fixation ₂CO ₃Consumption is at 20-25g/L; And the low form REACTIVE DYES only need be used Na ₂CO ₃5.0g/L+NaOH 1.0g/L, only this item dyeing knitted fabric per ton just can be saved soda ash 150～200kg.Because this dyestuff migration property is good, affinity is low, more than the animal migration that adds behind the alkali of the stage of dying be better than middle temperature dyestuff, thereby dye irregular possibility on having reduced, particularly more aobvious superior to viscose fiber fabric.When soaping, because dye affinity is low, easily clean, the temperature of soaping in warm dyestuff low, dark kind does not need after scouring, can obtain good COLOR FASTNESS equally.

The specific embodiment

The present invention is further described by the following embodiment.

Embodiment 1:

The low form Dyeing Technology of Reactive Dyes that the present embodiment is described, it mainly may further comprise the steps: standby cloth-margin to seam-pre-treatment-washing-deoxygenation-washing-dyeing-hot water wash cylinder-dehydration-typing-check-packing-warehouse-in that neutralizes-soap-wash-go out, when it is characterized in that pre-treatment, working concentration is 96% alkali 1g/L, and concentration is 27.5% hydrogen peroxide 5g/L, scouring agent 1g/L, hydrogen peroxide stabilizer 1g/L, chelating agent 1g/L, solvent are water, bath raio 1:15; Dyeing recipe is that low form REACTIVE DYES L series is made into coffee-like dyestuff, glauber salt 30g/L, soda ash 5.0g/L for yellowish-brown L-F 0.5%, red L-S 0.5%, dark blue L-3G 0.4%, sheet alkali 1.0g/L, color fixing temperature are 40 ℃, 40-50 ℃ of material temperature, the furnishing pulpous state, even material feeding 20min is when adding glauber salt, returning stream 20min adds, soda ash need be returned stream 15min, once adds, and sheet alkali adds at twice, the first time 1/5,10min adds; The second time 4/5,10min adds, and to sample, wherein said soaping is 80 ℃ of lasting 15min behind the dip-dye 50min.

Claims

1. low form Dyeing Technology of Reactive Dyes, it mainly may further comprise the steps: standby cloth-margin to seam-pre-treatment-washing-deoxygenation-washing-dyeing-hot water wash cylinder-dehydration-typing-check-packing-warehouse-in that neutralizes-soap-wash-go out, when it is characterized in that pre-treatment, working concentration is 96% alkali 1g/L, and concentration is 27.5% hydrogen peroxide 5g/L, scouring agent 1g/L, hydrogen peroxide stabilizer 1g/L, chelating agent 1g/L, solvent are water, bath raio 1:15; Dyeing recipe is low form REACTIVE DYES L series 1.5%-2.5%OWF, glauber salt 30g/L, soda ash 5.0g/L, sheet alkali 1.0g/L, color fixing temperature are 40 ℃, 40-50 ℃ of material temperature, the furnishing pulpous state, even material feeding 20min is when adding glauber salt, returning stream 20min adds, soda ash need be returned stream 15min, once adds, and sheet alkali adds at twice, the first time 1/5,10min adds; The second time 4/5,10min adds, and to sample, wherein said soaping is 80 ℃ of lasting 15min behind the dip-dye 50min.