Method and application of warp-proof willow screening for silk fabrics

Abstract

The invention discloses a warp-proof willow screening method and application of silk fabrics, and belongs to the technical field of silk dyeing. The screening method of the present invention includes the following steps: 1) silk sampling, 2) silk dyeing, 3) silk colorimetry, 4) fabric sampling, 5) fabric dyeing, 6) fabric colorimetry; step 2) silk dyeing with neutral dyes , dyed under acidic conditions; Step 5) The fabric is dyed with neutral dyes or acid dyes and dyed under acidic conditions. The screening method of the invention can effectively solve the problem of warp willows when dyeing silk fabrics, and is applied to screening silk fabrics suitable for dyeing sensitive colors. The application of the screening method of the present invention, as a screening process, is applied in the field of sensitive color dyeing of silk fabrics.

Description

technical field [0001] The invention discloses a warp-proof willow screening method and application of silk fabrics, and belongs to the technical field of silk dyeing. Background technique [0002] Silk fabrics refer to fabrics woven with silk as yarns. In actual production, silk is usually used as warp yarns, and weft yarns are woven from silk yarns or other fiber yarns. Silk fabrics include full silk fabrics and silk interwoven fabrics. Fabrics with silk yarns in both warp and weft are commonly known as all-silk fabrics; and fabrics with warp yarns and natural or regenerated cellulose fiber yarns as weft yarns are called silk interwoven fabrics. Common silk interwoven fabrics are made of silk warp yarns and weft yarns spun with at least one fiber from cotton, hemp, viscose, and modal. [0003] The applicant found in the research that the following problems exist in the current process of dyeing silk fabrics: [0004] First, it is prone to the problem of menstrual willow...

AI Technical Summary

Problems solved by technology

However, the problem of warp willow is difficult to repair twice. Once it occurs, warp willow will often run through the whole piece of fabric, and the whole piece (50±5 meters) can only be treated at a lower level, and the economic loss is relatively high.

[0007] Second, the willow problem is particularly prominent when dyed with sensitive skin

Due to the large molecular weight of acid and neutral dyes, the chemical affinity with silk fibers is weak, resulting in poor dyeing hiding power, and it is easy to appear when dyeing some sensitive colors such as brown, gray, army green and brown. willow blemish

When silk is dyed with sensitive colors, the color difference is serious, and it is easy to cause more than three color differences in the silk yarn on the fabric dyed in a cylinder, making the fabric unusable

Subsequent repairs not only cause a lot of waste, but also cause damage to the fabric

[0008] Since the warp willow problem occurs in the warp direction and runs through the entire fabric, it is more difficult to solve than the problem in the weft direction, and the loss is greater

The willow problem cannot be seen before dyeing, but it will appear on the fabric after dyeing, which is difficult to avoid with existing technologies