Number of wefts in corduroy fabrics: influence on dyeing and printing results

Corduroy fabric, with its unique velvet feel and thick feel, has occupied a place in the textile market. This kind of fabric is composed of weft and warp yarns. The number of weft yarns is an important indicator of the tightness of its structure. It not only affects the appearance and feel of the fabric, but also determines its dyeing and printing effects to a certain extent.

We need to understand the basic structure of corduroy fabric. Corduroy fabric is made up of two sets of weft yarns, ground weft and pile weft, interwoven with warp yarns. The pile weft forms velvet after cutting, giving the fabric a unique velvety feel. The number of weft threads directly determines the density of the pile and the tightness of the fabric. The higher the number of wefts, the denser the pile, the tighter the fabric, and the hand feel may be correspondingly stiffer; conversely, the lower the number of wefts, the sparser the pile, and the softer the fabric.

During the dyeing process, the difference in weft yarn count has a significant impact on the coloring effect of corduroy fabrics. Since corduroy fabrics are divided into trench and velvet structures, the dyeing effects of the pile part and the ground fabric part are often different. Corduroy with a higher weft count has a denser pile, and the dye may experience greater resistance during the penetration process, resulting in uneven dyeing or difficulty in achieving the desired depth. In addition, the increase in the number of weft yarns may also make the fabric surface rougher, increasing the chance of friction between the dye and the fabric surface, thus affecting the uniformity and fastness of dyeing.

In terms of printing, the influence of weft number cannot be ignored. The printing technology of corduroy fabric is more complicated than that of ordinary fabrics because the adsorption capacity of the fluff to the printing slurry and the clarity of the printing pattern need to be taken into consideration. In corduroy with a high weft count, due to the dense and closely arranged piles, the printing paste may be hindered during the penetration process, resulting in blurred printing patterns or uneven colors. In addition, the increase in the number of weft yarns may also make the fabric more prone to defects such as web blocking and slurry drag during the printing process, further affecting the printing quality.

However, weft count is not the only factor that determines dyeing and printing results. In actual production, many aspects such as dye selection, printing process optimization, and post-processing process adjustment need to be considered. For example, selecting dyes and printing slurries suitable for corduroy fabrics, optimizing printing process parameters such as temperature, pressure and time, and strengthening color fixation and softening in the post-processing process can all make up for the difference in weft number to a certain extent. Adverse effects on dyeing and printing effects.

In addition, with the advancement of science and technology and the continuous innovation of textile printing technology, some new printing technologies such as foam printing, transfer printing, etc. have also been used in the production of corduroy fabrics. These new technologies not only improve the clarity and color vividness of printed patterns, but also make corduroy fabrics easier to control and more stable in quality during the printing process.

The number of weft threads in corduroy fabric does have an impact on its dyeing and printing effects. However, through reasonable dye selection, optimized printing process and adjustment of post-processing process, this effect can be alleviated to a certain extent, so that corduroy fabric can show colorful dyeing and color while maintaining its unique texture. Printing effect. In the future, with the continuous development and innovation of textile printing technology, we have reason to believe that corduroy fabric will show its unique charm and value in more fields.