Preparation method of latex-free woven carpet

Abstract

The invention discloses a preparation method of a latex-free woven carpet. Hot melt fibers in a coating layer are two or more specifications of fibers with different melting points and melt indexes, the fiber melt with low melting point and high melt index has good mobility in the hot pressing process and can be easily penetrated into pile yarns, the fiber melt with high melting point and low meltindex adheres to weft yarns in a coating state, and the hot melt fibers with low melting point and high melting point are similar polymer materials, so that the compatibility is good, there is no obvious interface or phase separation after melting and then curing, the bonding effect is effectively ensured, especially in double coating or multi-coating, the hot melt fibers with high melting pointare close to core yarns, the hot melt fibers with low melting point are close to the pile yarns to facilitate melt flow and bonding, the pile yarns and the weft yarns as well as the weft yarns and warp yarns are effectively solidified after melting, flowing and solidifying of the hot melt fibers, the pile pull-out strength and the shape retention and size stability of the carpet are enhanced, andthe gumming process in the carpet preparation process is omitted.

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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