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Flax-wool blended yarn bleaching process

A technology of wool blended yarn and blended yarn, which is applied in the direction of bleaching products, textiles and papermaking, and two or more different solvent-based materials to achieve the effects of energy saving, operation management and strength reduction

Inactive Publication Date: 2012-12-05
ZHEJIANG JINLAINUO FIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the deficiencies in the prior art and provide a flax / wool blended yarn bleaching process that can bleach flax fibers well without damaging wool fibers

Method used

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Embodiment Construction

[0014] The blended yarn suitable for the bleaching process of the present invention has a flax weight ratio of 50% to 90%, and a wool weight ratio of 10% to 50%. The bleaching process includes the following steps.

[0015] 1) Pickling: sulfuric acid 0.8g / L, non-ionic penetrant 0.6g / l, at 40°C for 30 minutes.

[0016] 2) Washing: 10 minutes each time, twice in total.

[0017] 3) Two times of oxygen bleaching: sodium silicate 4g / L, non-ionic penetrant 0.6g / L, hydrogen peroxide 2g / L, chelating dispersant 0.6g / L, oxygen bleaching stabilizer 1g / L, sodium carbonate 2g / L L adjust the pH value to 8-9, and treat at 70-75°C for 1-2 hours. Preference is given to treating at a temperature of 75°C for 75 minutes. Then oxygen bleach again according to the same recipe.

[0018] 4) Wash with water.

[0019] The non-ionic penetrating agent is produced by Huntsman Textile Effects (China) Co., Ltd., and its model is INVADINE LUN. The oxygen bleaching stabilizer is produced by Bussett Chemi...

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Abstract

The invention relates to a flax-wool blended yarn bleaching process. The weight percentage of flax in blended yarns is 50-90 percent and the weight percentage of wool in the blended yarns is 10-50 percent. The flax-wool blended yarn bleaching process is characterized in that the process sequentially comprises the steps of acid washing, water washing, two times of oxygen bleaching and final water washing, mixed solution which contains 2g / L hydrogen peroxide, 0.7g / L non-ionic penetrating agent, 4g / L sodium silicate, 1g / L oxygen bleaching stabilizer and 0.6g / L chelating dispersant is used in the oxygen bleaching process, the pH (potential of hydrogen) value of the mixed solution is adjusted to 8-9 by using 2g / L sodium carbonate solution, treatment is conducted for 1-2 hours at 70-75DEG C, and then bleaching is conducted for another time according to the same formula. The flax-wool blended yarn bleaching process has the advantages that not only can the flax fibers be well bleached, but also the wool fibers are not damaged, the processing flow is shortened and the energy is saved.

Description

technical field [0001] The invention relates to a flax / wool blended yarn bleaching process, which is a production process for degumming and bleaching flax / wool blended rovings with hydrogen peroxide, and is mainly used in the production of the flax / wool blended yarn degumming process. Background technique [0002] Flax fiber is a pure natural fiber with strong hygroscopicity, good heat dissipation and air permeability, anti-mildew and anti-moth, no static electricity, no chemical components, and a unique high-grade fiber that inhibits bacterial growth. However, due to the strong rigidity of the flax fiber, the fiber is thick and hard, which affects the wearing performance to a certain extent. [0003] Wool is a protein fiber with a natural softness, which can be blended with linen to improve the softness of the yarn. But because wool and flax are two kinds of fibers with different properties, there is a big difference in the bleaching process. According to the characterist...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06B9/04D06L3/16D06L3/02D06L4/12D06L4/13
Inventor 庄寒良
Owner ZHEJIANG JINLAINUO FIBER
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