Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Filter element and filter unit

A technology of filter material and single fiber, which is applied in the field of filter material and filter unit, can solve the problems of not specifying the specific value, clogging air permeability, reducing filter material, etc., so as to improve deodorization, dust holding function, and washing reproducibility excellent effect

Active Publication Date: 2010-08-18
TORAY IND INC
View PDF6 Cites 19 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this document only states that fibers with a high Young's modulus can be used as long as the papermaking method is used, and does not describe the specific value of the Young's modulus of the fibers at all.
Therefore, if a gas-adsorbing substance is attached, it may cause clogging depending on the situation, resulting in a filter material with significantly reduced air permeability.
[0014] Due to the above reasons, there has not been a filter unit that can perform both functions of dust collection and deodorization in one filter material, and can handle large air volumes with low pressure loss.

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
  • Filter element and filter unit
  • Filter element and filter unit
  • Filter element and filter unit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0170] Using the wet papermaking method of the inclined needle method, the non-crimped vinylon fiber ((a) Young's modulus 150cN / dtex, fineness 7dtex, fiber length 10mm accounts for 32% by mass, (b) Young's modulus 250cN / dtex, fineness 17dtex, fiber length 12mm accounts for 29% by mass)), non-crimp polyester fiber ((a) Young's modulus 65cN / dtex, fineness 3dtex, fiber length 10mm accounts for 15% by mass, (b ) Fibers with a Young's modulus of 65 cN / dtex, a fineness of 1.3 dtex, and a fiber length of 5 mm accounted for 5% by mass, ) and pulp (19% by mass), and the weight per unit area was 36.4 g / m 2 of fiber aggregates. Then, this fiber aggregate was impregnated with a resin in which a styrene-acrylic polymer (glass transition temperature Tg: 30°C, film-forming temperature: 45°C) and a urethane polymer were mixed in a weight ratio of 3:1. After being immersed in a liquid with a liquid-solid content of 30%, the single fibers are fixed by drying and heat treatment, and the weight...

Embodiment 2

[0177] Production of non-crimped vinylon fiber (Young's modulus 150cN / dtex, fineness 7dtex, fiber length 10mm accounting for 81% by mass) and pulp (19% by mass) per unit area using the wet papermaking method of the oblique needle method The weight is 36.4g / m 2 of fiber aggregates. Then, this fiber aggregate is impregnated with a resin liquid solid obtained by mixing a styrene-acrylic polymer (glass transition temperature Tg 30°C, film-forming temperature 45°C) and a urethane polymer in a weight ratio of 3:1. After being immersed in a liquid with a composition of 30%, the single fibers are fixed by drying and heat treatment, and the weight per unit area is 52g / m 2 , thickness 0.48mm, apparent density 0.11g / cm 3 , a non-woven fabric sheet with a pressure loss of 0.3Pa and a specific strength of 909N·cm / g. Since the non-woven fabric sheet has only one kind of non-crimped vinylon fiber, no dense structure appears.

[0178] The fixed solid content on the non-woven fabric sheet ...

Embodiment 3

[0180] The gas-absorbing substance was changed to E liquid containing dodecanedioic acid dihydrazide which is insoluble in water, and the filter material was prepared by the same method as in Example 1 except that it was washed twice with water and dried for evaluation. Acetaldehyde removal rate. As a result, although the initial value of the acetaldehyde removal rate was 65%, it decreased to 62% after washing with water once, and decreased to 58% after washing with water twice, but a high removal rate was confirmed. Since dodecanedioic acid dihydrazide is poorly soluble in water, a high removal rate was confirmed even after washing with water.

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

A thin deodorizing filter element that can be minipleated; accordingly, a filter element resulting from integration of the deodorizing filter element with a dust collection filter element that can be regenerated by washing; and a dust collecting / deodorizing filter unit ensuring low pressure loss that can process a large air volume. A highly rigid nonwoven fabric sheet is produced from a noncrimped monofilament of specified Young's modulus and specified fineness, and a gas adsorptive substance is fixed thereonto.

Description

technical field [0001] The present invention relates to a deodorizing filter material capable of low pressure drop and high air volume treatment, and a filter unit using the filter material. Background technique [0002] The performance required by the air purifier includes basic performances such as low noise, power saving, high dust collection, and high deodorization. In addition, in recent years, filter units have been required to be washable and reused. [0003] In the filter part installed in conventional air cleaners, the dust collecting part and the deodorizing part are often arranged separately. Most of the dust collection parts mainly used in the market are HEPA filter materials, and most of the deodorization parts are flat. The reason why they are arranged in different shapes like this is because the dust collection part is a HEPA (ultra-high-performance filter material that can capture more than 99.97% of 0.3μ particles) performance filter material with high ven...

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): B01D39/14B01D46/52B01J20/06B01J20/22
CPCB01D2239/0407B01J20/06B01D2239/0442B01J2220/42B01D2239/0435B01J2220/46B01J20/043B01D2239/045B01J20/28038B01J20/3234B01D2239/065B01J20/103B01J20/324B01J20/22B01J20/3236B01D2239/064B01J20/3251B01D39/1623B01D2239/0478B01J20/28004B01J20/3223B01J20/28035
Inventor 富樫良一林祐一郎山贺直贵
Owner TORAY IND INC
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com