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Scouring and bleaching process and scouring and bleaching liquid of pure cotton cheese

A technology of bobbin yarn, scouring and bleaching, applied in bleaching products, textiles and papermaking, dry cleaning fiber products, etc., can solve the problems of high sewage discharge, high water consumption of cotton bobbin yarn scouring and bleaching, etc. Better, better water absorption effect

Inactive Publication Date: 2016-10-19
DYMATIC CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, after scouring and bleaching, a large amount of water washing and neutralization are required to reduce the pH value of the yarn to below 8.0 to ensure the quality of subsequent dyeing, which leads to high water consumption and high sewage discharge for cotton bobbin yarn scouring and bleaching quantity

Method used

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  • Scouring and bleaching process and scouring and bleaching liquid of pure cotton cheese
  • Scouring and bleaching process and scouring and bleaching liquid of pure cotton cheese
  • Scouring and bleaching process and scouring and bleaching liquid of pure cotton cheese

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Embodiment 1. is used for the scouring and bleaching liquid of pure cotton cheese scouring and bleaching process

[0022] In this embodiment, firstly, a scouring and bleaching solution for the scouring and bleaching process of pure cotton cheese is provided, the scouring and bleaching solution comprising:

[0023]

Embodiment 2

[0024] Embodiment 2. The optimization of embodiment 1 scouring and bleaching liquid

[0025] In order to optimize the scouring and bleaching solution in Example 1, the applicant conducted an optimization test on the scouring and bleaching solution in Example 1.

[0026] Test material: 32S combed cotton yarn;

[0027] Test reagents: Degreaser DM-1130, Brillante DM-1436, 30% H 2 o 2 (analytically pure), solid NaOH (industrial grade), glacial acetic acid (content 98%); wherein DM-1130 and DM-1436 are commercially available products of Guangdong Demei Fine Chemical Co., Ltd.;

[0028] Test equipment and instruments: all-round color tester (Xiamen Ruibi Precision Machinery Co., Ltd.); oven (Shanghai Instrument General Factory); HunterLabultrascan VIS (1307) spectrophotometer (U.S., HunterLab); DHG-9425A electric blast drying Box; fully automatic single yarn strength tester (YG063T)

[0029] Main test items and methods:

[0030] ① Whiteness value, according to CIE standard, mea...

Embodiment 3

[0049] Embodiment 3. the scouring and bleaching process of pure cotton cheese

[0050] Based on the data analysis of Example 1 and Example 2, the optimized pure cotton cheese scouring and bleaching process can be derived, and the scouring and bleaching liquid of the scouring and bleaching process includes:

[0051]

[0052] The process conditions are: bath ratio 1: (8-10), heat up to 110°C at a rate of 2.0°C / min for 30 minutes, and then cool down to 95°C at a rate of 3.0°C / min before draining.

[0053] The application test of the optimized scouring and bleaching process was carried out. The test fabric, equipment, process and test results (including dyeing effect and fastness after treatment) are as follows:

[0054] ① Test fabric: 60 / 2S combed cotton yarn, 100 kg

[0055] ②Test equipment: high temperature and high pressure dyeing machine (bath ratio 1:8, Germany THIES Dyeing and Finishing Equipment Manufacturing Co., Ltd.); SSM elastic winding machine (Switzerland, SSM M...

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Abstract

The invention provides a scouring and bleaching process of pure cotton cheese and its scouring and bleaching liquid. The scouring and bleaching liquid of the pure cotton cheese scouring and bleaching process includes: 0.25-1.0 g / L scouring agent, 0.5-2.0 g / L DM-1436, 0.25~1.0g / L solid NaOH and 5.0~20.0g / L 30%H 2 o 2 ; The process conditions are: bath ratio 1: (8-10), heat up to 110°C for 30 minutes, then cool down to 95°C and drain. The whiteness value of the package yarn after the scouring and bleaching process of the present invention reaches 70-80%, the internal and external difference of the whiteness is within 4%, and the yarn has excellent water absorption; its performance is the same as that of the traditional process, with better hand feeling and reduced weight loss, which can Significantly improve economic efficiency.

Description

technical field [0001] The invention relates to a textile scouring and bleaching process, in particular to a scouring and bleaching process of pure cotton cheese and its scouring and bleaching solution. Background technique [0002] The scouring and bleaching of pure cotton cheese is one of the main water consumption and sewage discharge processes in the printing and dyeing process. The traditional scouring and bleaching process of cotton cheese is: scouring and bleaching at 110-120°C → cooling to 85-95°C for liquid discharge → washing with hot water at 90°C One step → one bath for neutralization and deoxygenation → pressurized cold water washing for 5 minutes → overflow water washing for 1 minute → dyeing. During scouring and bleaching, various chemicals such as scouring agent, caustic soda, hydrogen peroxide, etc. are added to fully remove cotton fiber symbionts such as oil, pectin, wax and other impurities on the fabric through a high-temperature process. In order to ensu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06L3/02D06L1/14
Inventor 王深喜罗亮何欢邓东海李世琪
Owner DYMATIC CHEM