阅读说明：本技术 使用冷堆置生产工艺进行再生纱线织物的漂白方法 (Method for bleaching regenerated yarn fabric by using cold-stacking production process ) 是由 漆洁 于 2018-08-06 设计创作，主要内容包括：本发明公开了一种使用冷堆置生产工艺进行再生纱线织物的漂白方法,首先将再生纱线放入浸泡液中浸轧,再经5℃～10℃的温度堆置,水洗即可；其中,所述浸泡液是由过氧化氢、氯化钠、六偏磷酸钠以及蒸馏水作为原料制成。本发明解决了再生纱线由于纤维短,单纱断裂强力低导致漂白染色过程中着色不均匀和耐洗色牢度、耐摩擦色牢度不达标的问题。(The invention discloses a bleaching method for regenerated yarn fabric by using a cold-stacking production process, which comprises the steps of firstly putting regenerated yarns into a soaking solution for padding, stacking at the temperature of 5-10 ℃ and washing with water; wherein the soaking solution is prepared from hydrogen peroxide, sodium chloride, sodium hexametaphosphate and distilled water as raw materials. The invention solves the problems of uneven coloring and substandard color fastness to washing and rubbing in the bleaching and dyeing process caused by short fiber and low single yarn breaking strength of the regenerated yarn.)

1. A bleaching method for regenerated yarn fabric by using a cold-stacking production process is characterized by comprising the following steps: firstly, putting the regenerated yarns into a soaking solution for padding, stacking at the temperature of 5-10 ℃, and washing with water;

wherein the soaking solution is prepared from hydrogen peroxide, sodium chloride, sodium hexametaphosphate and distilled water as raw materials.

2. The method of bleaching a regenerated yarn fabric using a cold-stack production process according to claim 1, characterized in that: the soaking solution is prepared from 10 to 20 parts by weight of hydrogen peroxide, 20 to 30 parts by weight of sodium chloride, 15 to 25 parts by weight of sodium hexametaphosphate and 100 parts by weight of distilled water.

3. The method of bleaching a regenerated yarn fabric using a cold-stack production process according to claim 2, characterized in that: the stacking time is 4-8 hours.

4. A method of bleaching a regenerated yarn fabric using a cold-pile production process according to claim 2 or 3, characterized in that: the water washing is neutralization water washing.

5. The method of bleaching a regenerated yarn fabric using a cold-stack production process according to claim 4, wherein: the soaking solution is prepared from 10 parts by weight of hydrogen peroxide, 20 parts by weight of sodium chloride, 15 parts by weight of sodium hexametaphosphate and 100 parts by weight of distilled water.

6. The method of bleaching a regenerated yarn fabric using a cold-stack production process according to claim 4, wherein: the soaking solution is prepared from 20 parts by weight of hydrogen peroxide, 30 parts by weight of sodium chloride, 25 parts by weight of sodium hexametaphosphate and 100 parts by weight of distilled water.

7. The method of bleaching a regenerated yarn fabric using a cold-stack production process according to claim 4, wherein: the soaking solution is prepared from 15 parts of hydrogen peroxide, 25 parts of sodium chloride, 20 parts of sodium hexametaphosphate and 100 parts of distilled water in parts by weight.

Technical Field

The invention relates to the technical field of fabric bleaching, in particular to a bleaching method for regenerated yarn fabric by using a cold-stacking production process.

Background

The low-temperature bleaching process has the advantages of energy consumption saving, high whiteness of the obtained yarn and small damage. The invention discloses a low-temperature bleaching process for polyester-cotton blended yarns, which comprises the following steps: putting the polyester-cotton blended yarns into low-temperature scouring and bleaching liquid at a bath ratio of 1:5-1:10, preserving heat for 40-60 minutes at 60-80 ℃, and washing with water. Wherein the low-temperature scouring and bleaching agent comprises sodium perborate, an oxalic acid metal complex and a scouring agent. The method can bleach the polyester-cotton blended yarns at a lower temperature, saves energy and can reduce the damage degree of the polyester-cotton blended yarns. The invention discloses a low-temperature bleaching method of cotton-wool blended yarns, which comprises the following steps: firstly, carrying out pretreatment on cotton and wool blended yarns by using a mixed solution of ferric sulfate and laccase, washing the cotton and wool blended yarns by using water, then adding the cotton and wool blended yarns and a low-temperature bleaching solution into a dye vat, preserving heat, taking out the cotton and wool blended yarns, washing the cotton and wool blended yarns by using hot water, washing the cotton and wool blended yarns by using cold water, and drying the cotton and wool blended yarns. The method solves the problems of excessive energy consumption and great damage to wool under alkaline conditions in the bleaching process of the cotton-wool blended yarns, and the obtained cotton-wool blended yarns are high in whiteness, small in damage and simple to operate by using the ferric sulfate and laccase compound treating fluid to pretreat the cotton-wool blended yarns and then performing low-temperature activation bleaching.

However, compared with polyester-cotton blended yarns and cotton-wool blended yarns, the regenerated yarns have the defects of short fibers and low single yarn breaking strength, and the quality problems of uneven coloring, substandard color fastness to washing and rubbing and the like in the bleaching and dyeing process of the regenerated yarns cannot be solved by the low-temperature bleaching process.

Disclosure of Invention

The invention provides a method for bleaching regenerated yarn fabric by using a cold-stacking production process, which can solve the problems of uneven coloring and substandard color fastness to washing and rubbing in the bleaching and dyeing process of regenerated yarns due to short fibers and low breaking strength of single yarns.

In order to solve the problems, the technical scheme adopted by the invention is as follows: the method for bleaching the regenerated yarn fabric by using the cold-stacking production process comprises the steps of firstly, padding the regenerated yarn in a soaking solution, stacking at the temperature of 5-10 ℃, and washing with water;

wherein the soaking solution is prepared from hydrogen peroxide, sodium chloride, sodium hexametaphosphate and distilled water as raw materials.

In the above technical solution, a more specific technical solution may also be:

further: the stacking time is 4-8 hours.

Further: the water washing is neutralization water washing.

Further: the soaking solution is prepared from 10 parts by weight of hydrogen peroxide, 20 parts by weight of sodium chloride, 15 parts by weight of sodium hexametaphosphate and 100 parts by weight of distilled water.

Further: the soaking solution is prepared from 20 parts by weight of hydrogen peroxide, 30 parts by weight of sodium chloride, 25 parts by weight of sodium hexametaphosphate and 100 parts by weight of distilled water.

Further: the soaking solution is prepared from 15 parts of hydrogen peroxide, 25 parts of sodium chloride, 20 parts of sodium hexametaphosphate and 100 parts of distilled water in parts by weight.

Due to the adoption of the technical scheme, compared with the prior art, the invention has the following beneficial effects:

the regenerated yarns are piled in a special soaking solution at a special low temperature, so that the loss of the regenerated yarns is reduced, fibers contained in the regenerated yarns are thoroughly opened, the regenerated yarns are uniformly bleached, and the color fastness to washing and rubbing is effectively improved.

Detailed Description

The invention is further described in detail below with reference to specific examples: