Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Process for dyeing viscose yarns on bobbins

A cheese and viscose technology, applied in dyeing, textiles and papermaking, dry cleaning fiber products, etc., can solve the problems of large color difference and poor color fastness, achieve high color fastness, solve the problem of difficult dyeing and uniform dyeing Effect

Active Publication Date: 2016-08-31
ZIBO DARANFANG SILK GRP
View PDF3 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is: to overcome the deficiencies of the prior art, and to provide a viscose cheese dyeing process, which can solve the problem of large color difference between inside, middle and outside, and poor color fastness when dyeing viscose cheese. question

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Embodiments 1 to 5 are specific implementations of a viscose cheese dyeing process of the present invention, wherein embodiment 1 is the best embodiment. The anionic surfactant used in Examples 1-5 is the anionic surfactant TMC (ie penetrant TMC) produced by Qingdao Feilongyuan Chemical Co., Ltd. The polymer dispersant is the polymer dispersant FQ-2029 produced by Zibo Fengsheng Chemical Co., Ltd. The leveling agent is a reactive leveling agent produced by Dongfang Chemical Co., Ltd. Reactive dyes are B-type reactive dyes produced by Runtu Chemical Co., Ltd. When dyeing brilliant blue, the reactive dye is brilliant blue R-RV; when dyeing turquoise blue, the reactive dye is turquoise blue R-BGFN. The soaping agent is soaping agent LFX-102 produced by Zibo Fengsheng Chemical Co., Ltd. The softener is white soft oil produced by Zibo Fengsheng Chemical Co., Ltd. The smoothing agent used is the high-efficiency smoothing agent FZH-5 produced by Zibo Fengsheng Chemical Co....

Embodiment 2

[0047] The dyeing color of the viscose cheese in this embodiment is emerald blue.

[0048] Proceed as follows:

[0049] 1) Add additives: put the viscose cheese into the dye vat, add water, keep the liquid temperature in the dye vat at 42~44°C, add anionic surfactant 0.8g / L, polymer dispersant 1.2g / L, leveling agent 0.6g / L, circulate for 15 minutes;

[0050] 2) Add dye: add reactive dye to the dye vat and circulate for 15 minutes; the reactive dye includes reactive brilliant blue R-RV0.2%owf, reactive turquoise blue R-BGF2.5%owf and water;

[0051] 3) Add dyeing accelerator: add sodium sulfate to the dyeing vat to keep the concentration of sodium sulfate in the dyeing vat at 50 g / L, and circulate the water for 15 minutes; among them, add sodium sulfate in two times, the first addition of sodium sulfate and the second The mass ratio of adding is 1: 3, and the curve that the add-on of sodium carbonate increases gradually adds when adding at every turn, and the curve adding tim...

Embodiment 3

[0062] The dyed color of the viscose cheese in this embodiment is a combination of turquoise blue and brilliant blue.

[0063] Proceed as follows:

[0064] 1) Add additives: put the viscose cheese into the dyeing vat, add water, keep the liquid temperature in the dyeing vat at 44~46°C, add anionic surfactant 1g / L, polymer dispersant 1.2g / L, leveling agent 0.6 g / L, cycle for 10 minutes;

[0065] 2) Adding dyes: adding reactive dyes to the dye vat, the curve adding time is 15 minutes, and the cycle is 10 minutes; the reactive dyes include reactive brilliant blue R-RV1%owf, reactive turquoise blue R-BGF1.2%owf and water;

[0066] 3) Add dyeing accelerator: add sodium sulfate to the dyeing vat to keep the concentration of sodium sulfate in the dyeing vat at 50 g / L, and circulate the water for 10 minutes; among them, sodium sulfate is added in two times, the first addition of sodium sulfate and the second The mass ratio of adding is 1:2, and the curve that the adding amount of so...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A process for dyeing viscose yarns on bobbins belongs to the technical field of dyeing viscose yarns on bobbins. The process comprises the steps of 1) adding auxiliaries, 2) adding a dye, 3) adding an accelerating agent, 4) pre-adding alkali, 5) adding alkali while heating, 6) dyeing, 7) washing with cold water for the first time, 8) washing with an acid, 9) soaping, 10) washing with hot water, 11) washing with cold water for the second time, 12) adding a softening agent, and 13) dewatering and drying. In the step 1), while a liquor in a dye vat is kept at a temperature in the range of 40-50 DEG C, 1-2 g / L of anionic surfactant, 1-2 g / L of polymer dispersant and 0.5-2 g / L of leveling agent are added into the vat and circulated for 10-15 minutes. The process for dyeing viscose yarns on bobbins belongs provided by the present invention is capable of solving the problem of not easy uniform dyeing of viscose yarns on bobbins, and in particular the tough problem of dyeing of brilliant blue and turquoise blue products as well as products with the two colors in the industry. The obtained viscose yarns on bobbins have high color fastness and are dyed uniformly; the viscose yarns on bobbins are allowed to have consistent inside, central and outside color yield when dyed with the brilliant blue and the turquoise blue.

Description

technical field [0001] The invention relates to a viscose cheese dyeing process, which belongs to the technical field of viscose cheese dyeing. Background technique [0002] Cheese dyeing is to wind the yarn on a perforated bobbin, and then load many bobbins into the dyeing vat. The applicant found in the research that: when dyeing viscose cheese in the prior art, it is not easy to dye evenly, especially dyeing brilliant blue, emerald blue and their color matching products is a thorny problem in the industry, and the color difference between the inside, middle and outside is large , poor color fastness. [0003] The applicant found that the reasons for the above problems are as follows: firstly, the package yarn has a yarn layer thickness of about 50 mm, and the inside, middle and outside are not easy to dye evenly; secondly, the fiber expansion rate of the viscose fiber is high after absorbing moisture, resulting in the tightness of the whole package. It is hard and the d...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): D06P1/38D06P1/44D06P1/651D06P1/673D06L1/16
CPCD06L1/16D06P1/0032D06P1/38D06P1/445D06P1/65118D06P1/6735
Inventor 张承强李秀华周善德
Owner ZIBO DARANFANG SILK GRP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com