Floating support type non-woven fabric dyeing process

Abstract

The invention discloses a floating support type non-woven fabric dyeing process, and belongs to the field of dyeing. According to the floating support type non-woven fabric dyeing process, through the arrangement of a floating foam net, non-woven fabric laid on the floating foam net can be supported by buoyancy; therefore, on one hand, the non-woven fabric is effectively prevented from being accumulated at the bottom of a dyeing pool in the dyeing process, and occurrence of uneven dyeing caused by incomplete contact between partial cloth and dyeing liquid is avoided; on the other hand, non-woven fabrics can be distributed at intervals, the number of overlapped surfaces of the non-woven fabrics is small, contact between the dyeing liquid and the non-woven fabrics is effectively guaranteed, and the dyeing uniformity is effectively improved; and in addition, in the dyeing process, under the high-temperature effect of the dyeing liquid, the outer layer of the laminated floating bubble is broken, air in the laminated floating bubble overflows, so that a plurality of ascending bubbles are formed near the non-woven fabric, the flowability of the dyeing liquid near the non-woven fabric can be effectively accelerated, the diffusion speed of the dyeing liquid to the fabric is obviously accelerated, and the coloring efficiency is improved.

Description

technical field [0001] The invention relates to the field of dyeing, in particular to a float-over non-woven fabric dyeing process. Background technique [0002] Non-woven fabrics, also known as non-woven fabrics, are composed of directional or random fibers. They are a new generation of environmentally friendly materials that are moisture-proof, breathable, flexible, light in weight, non-combustible, easy to decompose, non-toxic, non-irritating, and rich in color. , low price, recyclable and so on. For example, polypropylene (pp material) pellets are mostly used as raw materials, which are produced by continuous one-step process of high-temperature melting, spinning, laying, and hot-pressing coiling. It is called cloth because of its appearance and certain properties. [0003] Non-woven fabrics have no warp and weft threads, are very convenient for cutting and sewing, and are light in weight and easy to shape, so they are deeply loved by handicraft lovers. Because it is ...

AI Technical Summary

Problems solved by technology

[0007] Aiming at the problems existing in the prior art, the object of the present invention is to provide a floating-type non-woven fabric dyeing process, which enables the non-woven fabric laid above it to be lifted by buoyancy through the setting of the buoyant net. On the one hand, it can effectively prevent non-woven fabrics from accumulating at the bottom of the dyeing tank during the dyeing process, resulting in incomplete contact between some fabrics and the dyeing solution, resulting in uneven dyeing; There are very few overlapping surfaces between them, which effectively ensures the contact between the dyeing liquid and the non-woven fabric, and effectively improves the uniformity of dyeing. In addition, during the dyeing process, under the high temperature of the dyeing liquid, the outer layer of the laminated foam ruptures, and the internal The air overflows, thereby forming multiple upward air bubbles near the non-woven fabric, which can effectively accelerate the fluidity of the dyeing solution near the non-woven fabric, significantly speed up the diffusion of the dyeing solution into the fabric, and improve the coloring efficiency

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