Production process of hot-rolled non-woven base fabric for packaging

A production process and non-woven technology, applied in the field of production process of hot-rolled non-woven base fabric for packaging, can solve the problems of poor puncture resistance, tearing and the like, and achieve the effect of not easy to absorb moisture and mildew

Inactive Publication Date: 2019-10-18
杭州金百合非织造布有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And according to the characteristics of paper, its disadvantage is relatively poor puncture and tear resistance.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0014] Embodiment: A production process of hot-rolled nonwoven base fabric for packaging, comprising the following steps: (1) Raw material preparation, mixing 70%-80% polyester staple fibers with 20%-30% low-melting point polyester staple fibers; Melting point polyester staple fiber has a sheath-core structure, the cortex is a modified polyester with a melting point of 100-130°C, and the core is ordinary polyester; the fineness of polyester staple fiber is 1.56D, and the fineness of low melting point polyester staple fiber is 2D. The fiber length of fiber and low-melting point polyester staple fiber is 32-76mm, generally choose 32mm, 48mm, 51mm, 64mm, 76mm; (2) The fiber is opened and mixed, and the mixed fiber is sent to the opener for opening, Mixing; (3) Carding into a web, the mixed fibers are evenly stacked in the cotton box, and the weight is fixed to the carding machine according to the pressure distribution, and the carding machine further opens the fibers, so that the ...

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Abstract

The invention discloses a production process of a hot-rolled non-woven base fabric for packaging, and aims to overcome the defects of difficulty in tearing, easiness in moisture absorption and mildewof paper packaging. According to the invention, two short fibers are proportioned and mixed, polyester short fibers are the main body of the product, so that the temperature resistance effect is achieved, a certain thickness is achieved in the processing course, and a material supporting effect is achieved. The low-melting-point polyester staple fibers play a bonding role in the product, glue coating can be omitted when the formed product is made into a packaging bag, and the product has a self-bonding effect. After fiber carding, the individual fibers are laid along the carding direction, sothat the formed cloth is easy to tear along the carding direction. A mesh surface with certain thickness and air permeability is formed between the fibers, so that the packaging material has effects of supporting, air permeability and water impermeability, and is not easy to absorb moisture and mildew.

Description

technical field [0001] The invention relates to the technical field of packaging, more specifically, it relates to a production process of a hot-rolled non-woven base cloth for packaging. Background technique [0002] With the development of the economy, people have more and more stringent requirements on product packaging, and packaging plays an important role in the process of product transportation, storage, and sales. Plastic film, paper, aluminum foil and other single or multi-layer materials are commonly used in the packaging industry. Among them, paper is used to increase the strength, hardness, brushability, and aesthetic appearance of flexible packaging; while aluminum foil is often used to improve its barrier to oxygen, water vapor, aroma and other permeable substances. Traditional paper materials use raw wood pulp, which is formed into a web, dried and reinforced into rolls. The pulp preparation process is more polluting to the environment, and the paper produced...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H1/4382D04H1/485B32B27/12B32B27/06B32B27/32B32B27/02B32B27/36
CPCD04H1/4382D04H1/485B32B5/08B32B5/028B32B27/12B32B27/06B32B27/322B32B2262/0284B32B2262/14
Inventor 孙武平张海明王继陈林博
Owner 杭州金百合非织造布有限公司
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