Preparation method and application of hollow fiber non-woven fabric

Abstract

The invention discloses a preparation method and application of a hollow fiber non-woven fabric. The preparation method comprises the following steps that 20% high melt index elastomer, 1.5% soft masterbatch, 2.5% whitening masterbatch and 76% conventional spunbonded material are used as raw materials, the selected raw materials are mixed, the mixed raw materials are added into a hopper, the mixedraw materials are fed to a screw rod through a feeding system for extruding and melting to obtain a hot melt, filtering, measuring and distributing are conducted on the hot melt, spinning is conducted on the distributed and measured hot melt through a hollow spinning board, and the spun yarn is cooled through side cold air to obtain a primary filament; and drawing is conducted on the primary filament to obtain fiber, the fiber touches a mesh curtain to form a fiber web, and hot rolling is conducted on the fiber web to obtain the nonwoven fabric. By means of the preparation method, the hollowspinning board is adopted to replace a conventional spinning board, special raw material ratio is adopted, the produced non-woven fabric is lower in gram weight and higher in softness and is more suitable for using of a bottom membrane and waist circumference of a diaper, and meanwhile, the production costs are lower.

Description

technical field [0001] The invention relates to the technical field of nonwoven fabric production, in particular to a preparation method and application of a hollow fiber nonwoven fabric. Background technique [0002] Non-woven fabric (English name: Non Woven Fabric or Nonwoven cloth), also known as non-woven fabric, is composed of oriented or random fibers. It is called cloth because of its appearance and certain properties. Non-woven fabrics have the characteristics of moisture-proof, breathable, flexible, light weight, non-combustible, easy to decompose, non-toxic and non-irritating, rich in color, low in price, and recyclable. 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. [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 shap...

AI Technical Summary

Problems solved by technology

[0004] As the main raw material of diapers and other products, non-woven fabrics are widely used in daily life. At this stage, with the improvement of people's living standards, the demand for disposable sanitary products such as diapers is getting higher and higher. Higher requirements are imposed, especially in terms of base film and waist circumference. The comfort of non-woven fabrics directly determines the quality of diapers. The spinnerets used in the existing non-woven fabric production process cannot be used for hollow spinning, resulting in There are more raw materials for the production of non-woven fabrics, and the quality of non-woven fabrics will increase at the same time

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