Unlock instant, AI-driven research and patent intelligence for your innovation.

Manufacturing method of foaming opening needled felt waste and opening fiber prepared by using foaming and opening needled felt waste

A production method and technology of pine needles, which are applied in the field of opening fibers, can solve the problems of unfavorable opening of high-quality fibers due to the treatment method of needle felt, and achieve the effects of expanding fiber spacing, reducing fiber damage, and reducing fiber loss

Pending Publication Date: 2021-09-10
ANHUI YUANCHEN ENVIRONMENTAL PROTECTION SCI & TECH
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to solve the problem that the existing processing methods for waste finished needle felts are not conducive to opening and releasing high-quality fibers

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Manufacturing method of foaming opening needled felt waste and opening fiber prepared by using foaming and opening needled felt waste
  • Manufacturing method of foaming opening needled felt waste and opening fiber prepared by using foaming and opening needled felt waste
  • Manufacturing method of foaming opening needled felt waste and opening fiber prepared by using foaming and opening needled felt waste

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A method for making foamed and loosened needle-punched felt waste, comprising the following steps:

[0031] (1) According to the mass ratio of 10:1:89, mix sodium bicarbonate, penetrant PENETOL SOS and deionized water at room temperature and stir evenly, the stirring time is 20min, and the stirring speed is 300r / min, and it is configured as a foaming agent dipping solution;

[0032] (2) Through the soaking-pressing process, evenly disperse the foaming agent impregnation solution prepared in step (1) into the waste product needle-punched felt. The soaking time is 60min, and the pressing pressure is 0.3MPa. Prompt the inorganic foaming agent to decompose by heat, release gas, and obtain fluffy waste filter material, the heating temperature is 120°C, and the heating time is 15 minutes;

[0033] (3) the fluffy waste filter material obtained in the step (2) is carried out by an opener for 2 openings to obtain preliminary opening fibers, and the speed of the opener horn curt...

Embodiment 2

[0037] A method for making foamed and loosened needle-punched felt waste, comprising the following steps:

[0038] (1) According to the mass ratio of 10:1:89, mix and stir ammonium nitrite, penetrant PENETOL SOS and deionized water at room temperature evenly, the stirring time is 20min, and the stirring speed is 300r / min, and it is configured as a foaming agent dipping solution;

[0039] (2) Through the soaking-pressing process, evenly disperse the foaming agent impregnation solution prepared in step (1) into the waste product needle-punched felt. The soaking time is 60min, and the pressing pressure is 0.3MPa. Prompt the inorganic foaming agent to decompose by heat, release gas, and obtain fluffy waste filter material, the heating temperature is 120°C, and the heating time is 15 minutes;

[0040] (3) the fluffy waste filter material obtained in the step (2) is carried out by an opener for 2 openings to obtain preliminary opening fibers, and the speed of the opener horn curtai...

Embodiment 3

[0044] A method for making foamed and loosened needle-punched felt waste, comprising the following steps:

[0045] (1) According to the mass ratio of 10:1:89, mix ammonium carbonate, penetrant PENETOL SOS and deionized water at room temperature and stir evenly. The stirring time is 20 minutes and the stirring speed is 300r / min. liquid;

[0046] (2) Through the soaking-pressing process, evenly disperse the foaming agent impregnation solution prepared in step (1) into the waste product needle-punched felt. The soaking time is 60min, and the pressing pressure is 0.3MPa. Prompt the inorganic foaming agent to decompose by heat, release gas, and obtain fluffy waste filter material, the heating temperature is 120°C, and the heating time is 15 minutes;

[0047] (3) the fluffy waste filter material obtained in the step (2) is carried out by an opener for 2 openings to obtain preliminary opening fibers, and the speed of the opener horn curtain is 15m / min;

[0048] (4) Carry out fiber ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a manufacturing method of foaming opening needled felt waste, and relates to the technical field of filtering materials. The problem that an existing treatment mode of waste finished needled felt is not beneficial to opening of high-quality fibers is solved. A chemical foaming method is adopted, an inorganic foaming agent is uniformly dispersed into the waste finished product needled felt through a soaking-pressing process, the inorganic foaming agent is heated to decompose and release gas in a heating mode, cohesive force between fibers is further promoted to be opened, the distance between the fibers is enlarged, the resistance of the needled felt during opening is reduced, then the fiber damage is effectively reduced, and the fiber loss is reduced; and n addition, compared with other fiber pre-opening treatment, the foaming process is simple.

Description

technical field [0001] The invention relates to the technical field of filter materials, in particular to a method for making foamed and opened needle-punched felt waste and the prepared opened fibers. Background technique [0002] The leftovers produced in the production process of needle-punched nonwovens are processed by singeing, heat setting and film coating. For example, patent CN103170183A discloses a high-strength and low-elongation polysulfone fiber high-temperature-resistant film-coated filter material and its preparation. The method, the preparation method sequentially includes the preparation of needle felt; high temperature heat setting; singeing and pressing treatment; full saturation impregnation treatment, then pre-baking, baking and curing; high temperature and high pressure lamination with PTFE high-density microporous film, but the fiber The cohesion between them is strong, and the surface layer, base fabric and bottom layer are entangled, which is not con...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): D01G11/00
CPCD01G11/00Y02W30/66
Inventor 黄伟琪梁燕穆磊杨东周冠辰
Owner ANHUI YUANCHEN ENVIRONMENTAL PROTECTION SCI & TECH