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Method for fluorescent dyeing and finishing of cotton knit fabric

A technology for cotton knitted fabrics and fluorescent dyes, applied in the field of fluorescent dyeing and finishing of cotton knitted fabrics, can solve the problems that reactive fluorescent dyes cannot play the role of fluorescent dyes, cannot achieve brightness and brilliance, etc. The effect of low residual liquid rate

Active Publication Date: 2010-07-28
CHANGZHOU NEW WIDE KNITTING & DYEING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, reactive fluorescent dyes are difficult to play the role of fluorescent dyes when dyeing and finishing cotton fabrics, and cannot achieve their proper brightness and brilliance.

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
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] This embodiment is a method for dyeing and finishing pure cotton knitted fabrics with bright fluorescent yellow dye, which has the following steps:

[0020] ①Pre-treatment: immerse the gray cloth in a bathtub filled with refining solution, and refine at a temperature of 110°C for 30 minutes; the pH value of the refining solution is 11-12. The refining solution contains 2g of softener, 4g of NaOH, and 8g of H per liter 2 o 2 , 1g of refining penetrating agent, 0.5g of the aqueous solution of degreasing yarn agent.

[0021] Wherein the softening agent is the FH cotton bath softening agent produced by Wuxi Yuda Fine Chemical Co., Ltd., and its main component is a mixture of higher fatty acids and polyols. The refined penetrant is refined penetrant A produced by Shanghai Deyi Industry and Trade Co., Ltd., and its main component is a mixture of fatty acid polyoxyethylene and fatty acid ester. The degreasing yarn agent is Scotol C-180 produced by Suzhou Weiming Chemical In...

Embodiment 2 to Embodiment 3

[0032]The dyeing and finishing process of each embodiment is basically the same as that of Example 1, and the differences are shown in Table 1.

[0033]

Embodiment 1 (fluorescent yellow)

Embodiment 2 (fluorescent green)

Embodiment 3 (fluorescence green)

Fluorescent dyes

Gray fabric weight 5% Remazol

Luminous Yellow FL

Gray fabric weight 5% Remazol

Luminous Yellow FL

The model of gray cloth weight 0.1% is

Remazol Turqoise

Blue G-X 133% blue color

Fluorescent dyes

Gray fabric weight 5% Remazol

Luminous Yellow FL

The model of gray cloth weight 0.1% is

Fucozol Blue RIU

Spec Blue Fluorescent Dye

[0034] The colored cloths dyed and finished in Examples 1 to 3 were tested for color fastness to washing according to GB / T3921-2008. The color fastness to self-change was 4 to 5, and the color fastness to cotton was 4. ~5 grades, and the color fastness to rayon (Viscose) is 4~5 ...

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
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Abstract

The invention discloses a method for the fluorescent dyeing and finishing of cotton knit fabric. The method comprises the following steps of: 1, pretreatment: soaking grey fabric in a bath tub filled with water soluble refining solution for refining; and neutralizing a pH value of the grey fabric to 6 to 7 by using aqueous solution of glacial acetic acid; 2, dyeing: soaking the refined grey fabric in a dye vat filled with water soluble dyeing solution for soaking, pickling the dyed colored fabric by using the aqueous solution of glacial acetic acid till the pH value of the washing solution is 4 to 5, and performing soaping and color fixing; and 3, post-finishing: taking the dyed colored fabric out of the dye vat, and soaking the dyed colored fabric in a reagent tank of a forming machine for forming. The method of the invention has the advantages of improving brightness and brilliance of the cotton fabric, improving the fluorescent color fastness of the pure cotton fabric to the fourth level or fifth level, and making the cotton fabric having certain depth and brilliance.

Description

technical field [0001] The invention belongs to the field of textile printing and dyeing, and in particular relates to a fluorescent dyeing and finishing method for cotton knitted fabrics. Background technique [0002] The dyeing and finishing of cotton fabrics with reactive dyes can be divided into three processes according to the type of reactive dyes selected. [0003] One is to choose ordinary (or cold dyeing) reactive dyes. Because the chemical properties of this type of dye are very active and the reaction ability is strong, it can chemically react with the fiber at low temperature (20-30°C) to dye. Left and right) to complete the color fixation, but the stability of the dye solution is poor. [0004] The second is to use thermosetting reactive dyes. It has low chemical activity and poor reaction ability, and the dye solution is relatively stable. Therefore, when reacting with fibers, the conditions are relatively severe, and the color fixing temperature must reach...

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
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P1/38D06P1/673D06P3/66D06P5/08D06M13/224D06M11/38D06M11/50D06M16/00D06M15/507D06M15/643D06M13/432D06M101/06
Inventor 黄庄芳容
Owner CHANGZHOU NEW WIDE KNITTING & DYEING
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