阅读说明：本技术 一种锦氨纶四面弹织物的染整工艺 (Dyeing and finishing process of nylon spandex four-side stretch fabric ) 是由 唐海国 石大均 田春生 黄伟 陈威明 朱伟强 于 2019-10-21 设计创作，主要内容包括：本发明公开了一种锦氨纶四面弹织物的染整工艺,其特征在于：它包括以下步骤,坯布准备→前处理→精炼→预缩→脱水、开幅→预定型→经轴打卷→烧毛→染色→冷水洗→烘干→定型→蒸呢→柔软。该锦氨纶四面弹织物的染整工艺节能降耗、克服织物回缩。(The invention discloses a dyeing and finishing process of a nylon spandex four-side stretch fabric, which is characterized by comprising the following steps of: the method comprises the following steps of grey cloth preparation → pretreatment → refining → preshrinking → dehydration, scutching → pre-shaping → beam rolling → singeing → dyeing → cold water washing → drying → shaping → decating → softening. The dyeing and finishing process of the nylon spandex four-side stretch fabric saves energy, reduces consumption and overcomes fabric retraction.)

1. A dyeing and finishing process of a nylon spandex four-side stretch fabric is characterized by comprising the following steps: the method comprises the following steps of gray fabric preparation → pretreatment → refining → preshrinking → dehydration, scutching → pre-shaping → beam rolling → singeing → dyeing → cold water washing → drying → shaping → decating → softening, shaping → inspection → rolling packaging; wherein, the pretreatment uses sodium carbonate and degreaser to wash the fabric; during singeing, a two-positive one-negative singeing method is adopted; adding 0.5-1.5% of acidic color fixing agent in the dyeing process; drying at 115 deg.C, at a speed of 50-60m/min, and overfeeding 12%; the steam pressure of the decating is 0.8bar, 50s from inside to outside, 80s from outside to inside, and the cooling time is 125 s.

The technical field is as follows:

the invention relates to the technical field of textile printing and dyeing, in particular to a dyeing and finishing process of a nylon spandex four-side stretch fabric.

Background art:

because the content of the spandex elastic yarn is generally less and the spandex elastic yarn exists in a core-spun yarn structure, the good shrinkage is not easy to obtain in a production process with higher tension, so that the produced fabric has low elasticity, edge and middle color difference is easy to generate during dyeing and finishing, and the color light of the part close to the edge of the fabric is relatively yellow.

The invention content is as follows:

the invention aims to solve the technical problem of providing the dyeing and finishing process of the nylon spandex four-side stretch fabric, which saves energy, reduces consumption and overcomes fabric retraction, and the dyeing and finishing process has good dyeing effect.

The technical scheme of the invention is to provide a dyeing and finishing process of a nylon spandex four-side stretch fabric, which is characterized by comprising the following steps of: the method comprises the following steps of gray fabric preparation → pretreatment → refining → preshrinking → dehydration, scutching → pre-shaping → beam rolling → singeing → dyeing → cold water washing → drying → shaping → decating → softening, shaping → inspection → rolling packaging; wherein, the pretreatment uses soda and degreasing agent to wash the fabric, the concentration of the soda is 4g/L, the degreasing agent is degreasing agent 101, and the concentration is 5 g/L; the refining agent is DR-N6 during refining, the concentration is 1.5g/L, and a two-positive-one reverse singeing method is adopted during singeing; adding 0.5-1.5% of acidic color fixing agent in the dyeing process; drying at 115 deg.C, at a speed of 50-60m/min, and overfeeding 12%; steam pressure of the decating is 0.8bar, the steam pressure is 50s from inside to outside, 80s from outside to inside, and the cooling time is 125 s; the softening agent is high-concentration softening agent DR-69A with concentration of 8 g/L.

Compared with the prior art, the invention has the following advantages after the process is adopted: the process breaks through the traditional process, effectively avoids the retraction problem of the spandex fabric, enables the fabric surface to be smoother and smoother, greatly improves the problems of high thermal shrinkage and high washing shrinkage of the fabric, and has good dyeing effect.

The specific implementation mode is as follows:

the invention is further illustrated with respect to specific embodiments below:

a dyeing and finishing process of a nylon spandex four-side stretch fabric is characterized by comprising the following steps: the method comprises the following steps of gray fabric preparation → pretreatment → refining → preshrinking → dehydration, scutching → pre-shaping → beam rolling → singeing → dyeing → cold water washing → drying → shaping → decating → softening, shaping → inspection → rolling packaging; wherein, the pretreatment uses soda and degreasing agent to wash the fabric, the concentration of the soda is 4g/L, the degreasing agent is degreasing agent 101, and the concentration is 5 g/L; the refining agent is DR-N6 during refining, the concentration is 1.5g/L, and a two-positive-one reverse singeing method is adopted during singeing; adding 0.5-1.5% of acidic color fixing agent in the dyeing process; drying at 115 deg.C, at a speed of 50-60m/min, and overfeeding 12%; steam pressure of the decating is 0.8bar, the steam pressure is 50s from inside to outside, 80s from outside to inside, and the cooling time is 125 s; the softening agent is high-concentration softening agent DR-69A with concentration of 8 g/L.

The invention has the following advantages: the process breaks through the traditional process, effectively avoids the retraction problem of the spandex fabric, enables the fabric surface to be smoother and smoother, greatly improves the problems of high thermal shrinkage and high washing shrinkage of the fabric, and has good dyeing effect.

The foregoing is illustrative of the preferred embodiments of the present invention only and is not to be construed as limiting the claims.