Preparation process of flame-retardant washable filter material without glue spraying process

A technology of filter material and preparation process, applied in filtration separation, dispersed particle filtration, adhesive and other directions, can solve problems such as pollution caused by the environment, and achieve the effect of firm combination and retention of flame retardant effect.

Inactive Publication Date: 2019-06-07
BEIJING JINHAOYUAN PURIFICATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, in order to achieve the effect of washing resistance and flame retardancy, the flame-retardant filter materials used in the market usually use the glue-spraying process, which is easy to pollute the environment during the production process

Method used

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Embodiment Construction

[0020] The preferred embodiments described here are only used to illustrate and explain the present invention, not to limit the present invention.

[0021] The embodiment of the present invention provides a preparation process of a non-glue-spraying flame-retardant and washable filter material. The filter material prepared by this process includes several pre-flame-retardant three-dimensional crimped polyester staple fibers and high-temperature-resistant and low-melting point fibers. A certain proportion is opened, mixed, carded, needled (or non-needled), high-temperature bonding, ironed, trimmed and wound, including the following steps:

[0022] Step 1: Two kinds of pre-flame retardant three-dimensional crimped polyester staple fibers with fiber fineness of 6dtex and 17dtex and lengths of 51mm and 60mm; Ratio 20:25:56, after opening and mixing;

[0023] Step 2: Carding the mixed fibers through a carding machine at a carding speed of 7 m / min;

[0024] Step 3: the cotton laye...

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Abstract

The invention relates to the technical field of filter materials, and in particular relates to a preparation process of a flame-retardant washable filter material without a glue spraying process. Thepreparation process comprises the following steps: step 1, mixing one or more pre-flame-retardant three-dimensional curved polyester staple fibers and high-temperature-resistant low-melting-point fibers according to a certain ratio, performing opening, and performing mixing; step 2, performing carding on the various uniformly-mixed fibers by a carding machine; step 3, performing netting needling (or no needling) on a net cotton layer to make the above several pre-flame-retardant three-dimensional curved polyester staple fibers and the high-temperature-resistant low-melting-point fibers entangled with each other; step 4, performing high-temperature bonding on the needled (non needled) cotton layer at a high temperature of 120-200 DEG C; and step 5, performing stamping on the high-temperature bonded cotton layer by using a hot stamping machine at 90-200 DEG C to make surfaces of fiber intersections of the several pre-flame-retardant three-dimensional curved polyester staple fibers and the high-temperature-resistant low-melting-point fibers molten and bonded, performing edge cutting, and performing rolling.

Description

technical field [0001] The invention relates to the technical field of filter materials, in particular to a preparation process of a non-glue-spraying flame-retardant water-washable filter material. Background technique [0002] In addition to oxygen and hydrogen, the air also contains dust, sand, bacteria and other harmful substances. In some special environments, it is necessary to filter the air, such as automobile engines, precision instrument production workshops, laboratories, operating rooms, etc. In addition, , Small particles in the air can deposit in the human lungs and even the blood circulation system, causing respiratory diseases or thrombus; and because of the large specific surface area of ​​small particles, they can absorb a large amount of toxic substances such as organic gases, viruses, bacteria, etc. With the development of society and the popularization of health knowledge, people pay more and more attention to the harm of fine particle pollution in the a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D39/14B01D46/30D04H1/4382D04H1/435D04H1/542D06C15/00
Inventor 谭清云程富强
Owner BEIJING JINHAOYUAN PURIFICATION TECH CO LTD
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