A kind of preparation method of latex-free machine-woven carpet

Abstract

The invention discloses a method for preparing a latex-free woven carpet. The second coating layer is filament or spun yarn formed of hot-melt fibers, and the first coating layer is fiber long yarn formed of nylon 6 or nylon 66. Silk or spun yarn, the second covering layer accounts for 20%-50% of the total mass of the composite yarn, the first covering layer accounts for 10%-15% of the total mass of the composite yarn, and the rest is the core yarn. Pile weft. When hot-melt copolyamide fibers are used as bonding materials to produce adhesive-free carpets, and pile yarns made of nylon or wool fibers, when the hot-melt copolyamide fibers are heated above their melting point in the hot-pressing process, they melt, and the fibers The conformation of the macromolecular chain changes, and through the transition of the chain segment, the entire macromolecular chain slips and viscous flow occurs. After curing, the pile and weft yarn as well as the weft and warp yarn are effectively consolidated, which enhances the pull-out strength of the carpet pile and The shape retention and dimensional stability of the carpet, thereby omitting the back glue process in the carpet preparation process, makes the prepared carpet more environmentally friendly.

Description

technical field [0001] The invention relates to the field of household articles, in particular to a preparation method of a latex-free woven carpet. Background technique [0002] With the improvement of modern living standards, the requirements for the comfort, fashion and environmental protection of some public places and home decoration are also getting higher and higher. The utilization rate of carpets in some public places and home decoration accounts for a large part. Carpets have the function of heat preservation and regulation. Large-area carpets can reduce the heat lost through the ground in the room, block the invasion of cold air on the ground, and make people feel warm and comfortable. At the same time, it has a sound-absorbing function. The rich texture of the carpet and the surface of the plush tufts have a good sound-absorbing effect, and can properly reduce the impact of noise. Since the carpet is a fabric rich in elastic fibers, it has a plump, thick, and so...

AI Technical Summary

Problems solved by technology

Woven Wilton carpets are made by interweaving warp yarns, weft yarns, and pile yarns, and are finished by subsequent processes such as gluing, shearing, etc., so that the warp yarns, weft yarns, and pile yarns are mechanically bonded. It is also made by interweaving warp yarn, weft yarn and pile yarn, and then finishing through gluing, shearing and other processes. In the gluing process, organic solvents are needed to dissolve and dilute the glue. Therefore, in the gluing process, there are the following problems: ⑴ During the gluing process, volatile harmful gases pollute the environment and affect the health of workers; (2) The gluing and drying and curing process is long and takes a long time, which limits the production speed, the equipment occupies a large space, the amount of glue used is large, and the energy consumption is high. The production cost of the carpet is lowered; (3) the traditional carpet adopts the method of applying glue on the back of the embryo carpet, and the glue needs to be infiltrated into the pile yarn through the embryo carpet base cloth. This leads to problems such as insufficient pull-out strength, poor dimensional stability, and easy deformation of the pile yarn

At the same time, in order to reduce the cost and improve the stiffness of the carpet, the glue bonding layer is generally mixed with calcium carbonate during the gluing process. The problem brought by this method is that it is not easy to reuse, and when the waste is burned, the waste contains flame retardant filler

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