Production process of high-elasticity non-woven three-dimensional cotton

Abstract

The invention discloses a production process of high-elasticity non-woven three-dimensional cotton, comprising the following steps: mixing a low melting point hot melting viscose fiber and at least two fibers of other fibers in proportion; opening and scotching, and feeding cotton and carding and delivering to a vertical lapping forming machine to carry out vertical forming process. A fiber net is continuously folded and descends in a forming curtain at the action that a pendulum-type swinging folding mechanism swings left and right reciprocately, becomes continuous fiber net layers which are arranged in a vertical direction in a steerable channel, and finally forming the three-dimensional cotton which is arranged in a vertical direction through heat setting and cooling setting. The production process in the invention realizes production through a conventional non-woven heat setting machine at the condition of not adding any chemical adhesive, and sets the product thickness and density according to the process requirements; the process is simple, practical and efficient; any fiber can be used as the basic fiber of the material; the regenerated fiber also can be used for forming; and the material source is wide, is easy to obtain, and is relatively environment-friendly.

Description

Technical field [0001] The invention belongs to the technical field of non-woven technology, and is specifically a production technology of high-elasticity non-woven three-dimensional cotton. Background technique [0002] The current development trend in the automotive industry, mattresses and furniture is to use textile materials to replace polyurethane materials such as sponges and foams that are not hygienic, environmentally friendly, and non-recyclable. Among them, non-woven materials are the main substitute for polyurethane materials in the future. Product. [0003] In the past, non-woven materials were mainly produced by laying horizontal parallel webs, and the products produced were lying down and parallel to the fiber structure. The arrangement of the fibers was horizontal, and the cross section was as figure 1 As shown, the three-dimensional structure is figure 2 As shown, such a structure leads to the resilience and softness far below the requirements, and it is not as g...

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Problems solved by technology

[0003] In the past, the laying method of horizontal parallel laying was mainly used to produce non-woven materials. The products produced were lying parallel fiber structures. The fibers were arranged in the horizontal direction. The cross-section was as follows: figure 1 As shown, the three-dimensional structure is as figure 2 As shown, the resilience and softness of such a structure are far below the requirements, not as good as the effect of polyurethane materials. In occasions with high requirements for resilience and softness, it is difficult to replace polyurethane materials with non-woven materials, so it can be used Whether to change the forming and laying structure of fibers becomes the bottleneck of improving the performance of nonwoven materials

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