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Acid bleaching and brightening method of fluff fibers

An acid bleaching and fiber technology, used in bleaching products, textiles and papermaking, etc., can solve the problems of serious fiber damage, poor product feel, felting, etc., achieve high detergency and carrying power, and improve vividness and brightness. , Improve the effect of strength and feel

Inactive Publication Date: 2013-08-14
INNER MONGOLIA ORDOS RESOURCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its disadvantage is that hydrogen peroxide bleaching is bleached under alkaline conditions, the fiber is seriously damaged, and even a slight felting phenomenon occurs, which affects the subsequent processing of spinning, weaving and other processes, and the product has poor hand feeling.

Method used

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  • Acid bleaching and brightening method of fluff fibers
  • Acid bleaching and brightening method of fluff fibers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Raw material: white cashmere loose fiber

[0017] Weight: 100kg

[0018] According to the attached figure 1 Process, add 3% activator at 30°C, add 1% bleach accelerator, 25% hydrogen peroxide, and run for 10 minutes; adjust the pH value to 5.5, raise the temperature at a rate of 1°C / min, rise to 60°C, and keep warm for 50 minutes. Cooling, washing, out of the tank. Add 1% activator at 30°C, add 2% acetic acid, adjust the pH value to 4.2, and run for 10 minutes; heat up at a speed of 1°C / min, rise to 40°C, keep warm for 50 minutes, cool down, and rinse.

[0019] According to the attached figure 2 Process, add 3% no-cleaning agent at room temperature, run for 40 minutes, and rinse.

[0020] Add 2% acetic acid at 30°C according to the attached drawing 3 process in the manual, add 0.8% leveling agent MF, add 2% ammonium sulfate, add 2% no-cleaning agent, and run for 10 minutes; add 0.06% acid red B, run 10 minutes; heat up at a rate of 1°C / min to 90°C a...

Embodiment 2

[0022] Raw material: white cashmere

[0023] Quantity: 50kg

[0024] Bleach:

[0025] According to the attached figure 1 Process, add 4% activator at 30°C, add 2% bleach accelerator, 30% hydrogen peroxide, and run for 10 minutes; adjust the pH value to 6.0, raise the temperature at a rate of 1°C / min, rise to 60°C, and keep warm for 60 minutes. Cool down, rinse. Add 1.5% activator at 30°C, add 1.5% acetic acid, adjust the pH value to 4.0, run for 10 minutes; raise the temperature at 1°C / min to 40°C, keep warm for 60 minutes, cool down, rinse, and leave the tank.

[0026]

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Abstract

The invention relates to an acid bleaching and brightening method of fluff protein fibers. The method is mainly used for bleaching cashmere fibers under an acidic condition, and pretreating and dyeing the cashmere fibers after bleaching. The process of the method mainly comprises the following three steps of: 1, adding 2-5% of activating agent, 1-4% of bleaching promoter and 15-40% of oxydol at 30 DEG C, heating to 50-60 DEG C at a rate of 1 DEG C / min, maintaining the temperature for 40-60 minutes, adding water for flushing, then adding 0.5-1.5% of bleaching protective agent and 1-3% of acetic acid at 30 DEG C, heating to 30-40 DEG C at a rate of 1 DEG C / min, maintaining the temperature for 40-60 minutes, and adding water for flushing; 2, adding 1-4% of wash-free agent, treating for 30-45 minutes at room temperature, and adding water for flushing; and 3, adding a common additive for dyeing at 30 DEG C, adding 1-4% of wash-free agent at the same time, operating for 10 minutes, adding a needed dye, operating for 10 minutes, heating to 85-100 DEG C at a rate of 1 DEG C / min, maintaining the temperature for 30-45 minutes, adding water for flushing, and drying.

Description

technical field [0001] The invention relates to a brightening method for acid bleaching of cashmere wool protein fiber. [0002] Background technique [0003] Cashmere wool protein fiber textiles, like other textiles, need to be dyed and finished in order to endow them with aesthetic characteristics and wearability and improve economic value. For products that are required to be too white or too bright, they need to go through bleaching, dyeing and other processing methods. [0004] Protein fibers such as cashmere wool contain certain natural pigments. These natural pigments contain conjugated double bond structures. If the color system of these conjugated double bonds can be destroyed, the color can be eliminated and the purpose of bleaching can be achieved. Bleaching followed by dyeing results in bright, clean colors. [0005] The conventional method of producing light bright colors in the industry is exactly to use hydrogen peroxide to bleach and then dye. Its shortco...

Claims

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Application Information

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IPC IPC(8): D06L3/02D06P1/44D06L4/12D06L4/13
Inventor 张梅荣王友张朝清罗燕庞瑞冬祁永光王国华
Owner INNER MONGOLIA ORDOS RESOURCE
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