CN106012596A

CN106012596A - Process used for dyeing silk plied yarns with reactive dye for wool under conditions of high temperature and medium pressure

Info

Publication number: CN106012596A
Application number: CN201610608358.1A
Authority: CN
Inventors: 沈苏萌; 沈春植
Original assignee: DONGTAI SUMENG KNITTING FASHION Co Ltd
Current assignee: DONGTAI SUMENG KNITTING FASHION Co Ltd
Priority date: 2016-07-28
Filing date: 2016-07-28
Publication date: 2016-10-12

Abstract

The invention discloses a process used for dyeing silk plied yarns with a reactive dye for wool under the conditions of high temperature and medium pressure. The process is characterized by comprising the following steps: dyeing, soaping, fixation and softening. By adopting the above process scheme, the degree of dyeing is more than 95%, the color fastness rating is higher than four, and the silk plied yarns can be dyed in very dark colors; the dyeing cycle is shortened by 30% compared with the normal temperature skein dyeing cycle and the dyed product put amount is increased by more than five times, so the dyeing efficiency is greatly improved; meanwhile, the bath ratio is only 1/2 of the original bath ratio, so water can be saved and tail liquid discharge can be reduced; the reactive dye for wool easily dyes through the silk plied yarns under the condition of high pressure, is uniform in coloring without white cores and has good dyeing effects; as the degree of dyeing and the color fastness are high, the residual liquid concentration is low and environment protection is benefited; meanwhile, the soaping frequency is reduced, thus being beneficial to saving water and reducing cost.

Description

In high temperature, under the conditions of pressure, reactive dye for wool is used for the dyeing of silkworm silk strand

[technical field]

The present invention relates to the technical field of silkworm silk cylinder yarn exhaust process, particularly in high temperature, under the conditions of pressure, hair is lived Property dyestuff for the technical field of dyeing of silkworm silk strand.

[background technology]

Silkworm silk is neutral or acid dyeing, silkworm silk and dyestuff rely on ionic bond and form Van der Waals force traditionally In conjunction with, this adhesion is more weak, and silkworm silk in such a process easily fades and more can not dye dark colour, Therefore at present the multiplex reactive dye of industry are to dyeing silk, and at this moment silkworm silk and dyestuff generation chemical reaction terminate most Close and form covalent bond and combine, this combinative stability and firmly, but there is also following weak point:

1. reactive dye for wool is for protein fibre dyeing research and development, so being to close to silk fiber dyeing Fitting, the dyeing of silkworm silk strand is all used under normal pressure by current industry, bundle dyeing in open slot, the highest temperature Degree can only achieve 95 DEG C, and therefore thick line this to silkworm silk strand is difficult to dye thoroughly, white core phenomenon easily occurs, and And dyeing cycle length, efficiency are low.

2. cotton reactive dye is researched and developed mainly for cellulose dyeing, issues at 50-70 dyeing temperature Waving effectiveness, at high temperature easily hydrolyzing azelon this to silkworm silk strand dyeing has that upper colour efficiency is low, set The shortcoming that rate is low.

3. chemical fibre reactive dye are the dyeing research and development for chemical fibre macromolecular compound, although can be at high temperature Staining reaction under condition of high voltage, but to strand of silk linear protein matter stock-dye, have that dye uptake is low, fixation rate is low, The shortcoming that residual liquid concentration is high, big for environment pollution

[summary of the invention]

The present invention is directed to deficiencies of the prior art, the technical problem to be solved is intended to carry For under the conditions of pressure in high temperature, reactive dye for wool is for the dyeing of silkworm silk strand, this technique has dye uptake High, fixation rate height, product dye level height, residual liquid concentration advantage low, beneficially environmental conservation.

For achieving the above object, under the conditions of pressing during the present invention proposes high temperature, reactive dye for wool is for strand of silk The dyeing of line, it is characterised in that comprise the steps:

A) dyeing: in the strand of silk spool yarn string of refine is hung in high pressure dye vat and fix, starts toward high pressure In dye vat, water filling is to after the bath raio of 1:9-10, injects steam and starts dyeing；

The dyeing first stage: when temperature is raised to 40 DEG C-50 DEG C, addition reactive dye for wool and dyeing assistant are also Air pressure increases to 1.6-1.8 mark pressure, and after keeping 15-25 minute, the speed with 2 DEG C/min heats up；

Dyeing second stage: when temperature is raised to 65 DEG C-75 DEG C, when adding alkaline agent to pH value 8-9, keeps After 15-20 minute, the speed with 1 DEG C/min heats up；

The dyeing phase III: when temperature is raised to 120 DEG C-130 DEG C, keep 10-15 minute terminating to dyeing.

B) soap: silkworm silk strand dyed for step a) is put into and soaps in device, add soaping agent and water, And quickly water temperature is increased to 85 DEG C-95 DEG C, keep this temperature to soap 15-25 minute；

C) set: the silkworm silk strand after being soaped by step b), is raised to 40 DEG C-50 under conditions of normal pressure by temperature DEG C time add color fixing agent, keep this temperature set 15-25 minute；

D) soft: by the silkworm silk strand after step c) set, in atmospheric conditions temperature to be raised to 40 DEG C-50 DEG C time add softening agent and auxiliary agent, keep this temperature soft treatment 15-25 minute.

As preferably, the dyeing assistant that described step a) the dyeing first stage adds include dye leveller, dispersant, Healant and antistatic additive.

As preferably, auxiliary agent when described step d) does soft treatment is smooth agent and leavening agent.

[detailed description of the invention]

In high temperature, under the conditions of pressure, reactive dye for wool is used for the dyeing of silkworm silk strand, it is characterised in that include Following steps: a) dyeing: in the strand of silk spool yarn string of refine is hung in high pressure dye vat and fix, open After beginning toward water filling in high pressure dye vat to the bath raio of 1:9-10, inject steam and start dyeing；The dyeing first stage: When temperature is raised to 40 DEG C-50 DEG C, adds reactive dye for wool and dyeing assistant and air pressure is increased to 1.6-1.8 Individual mark pressure, after keeping 15-25 minute, the speed with 2 DEG C/min heats up；Dyeing second stage: when temperature is raised to When 65 DEG C-75 DEG C, when adding alkaline agent to pH value 8-9, with the speed liter of 1 DEG C/min after keeping 15-20 minute Temperature；The dyeing phase III: when temperature is raised to 120 DEG C-130 DEG C, keep 10-15 minute terminating, b) to dyeing Soap: silkworm silk strand dyed for step a) is put into and soaps in device, addition soaping agent and water, and quickly Water temperature is increased to 85 DEG C-95 DEG C, keeps this temperature to soap 15-25 minute；C) set: step b) is soaped After silkworm silk strand, add color fixing agent when temperature is raised under conditions of normal pressure 40 DEG C-50 DEG C, keep this temperature Degree set 15-25 minute；D) soft: by the silkworm silk strand after step c) set, in atmospheric conditions will Temperature is raised to when 40 DEG C-50 DEG C add softening agent and auxiliary agent, keeps this temperature soft treatment 15-25 minute, institute The dyeing assistant stating step a) dyeing first stage addition includes dye leveller, dispersant, healant and antistatic Agent, auxiliary agent when described step d) does soft treatment is smooth agent and leavening agent.

The present invention uses process above scheme, makes dye uptake reach more than 95%, and color fastness reaches more than 4 grades, The deepest color can be contaminated；Making dyeing cycle shorten 30% than room temperature bundle dyeing, dyeing product injected volume improves More than 5 times, therefore staining efficiency is greatly improved, and bath raio is only original 1/2 simultaneously, can subtract with using water wisely Few tail liquid emissions amount；The present invention is also by under elevated pressure conditions, it is easy to contaminate silkworm silk strand, uniform nothing of painting Bai Xin, Color is good；Owing to dye uptake is high, color fastness is high, so residual liquid concentration is low, and beneficially protection ring Border, number of times of simultaneously soaping reduces, beneficially using water wisely, thus reduces cost.

Above-described embodiment is the description of the invention, is not limitation of the invention, any simple to the present invention Scheme after conversion belongs to protection scope of the present invention.

Claims

1. in high temperature, under the conditions of pressure, reactive dye for wool is used for the dyeing of silkworm silk strand, it is characterised in that include Following steps:

2. in high temperature described in claim 1, under the conditions of pressure, reactive dye for wool is for the dyeing of silkworm silk strand, and it is special Levy and be: the dyeing assistant that described step a) the dyeing first stage adds includes dye leveller, dispersant, repairing Agent and antistatic additive.

3. in high temperature described in claim 1, under the conditions of pressure, reactive dye for wool is for the dyeing of silkworm silk strand, and it is special Levy and be: auxiliary agent when described step d) does soft treatment is smooth agent and leavening agent.