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

Nonwoven fabric for cabin air filter comprising low melting point polyester fiber

A low-melting polyester, air filter technology, applied in membrane filter, filtration separation, fiber treatment, etc., can solve the problems of secondary pollution, lack of sterilization effect, pollution of indoor air, etc., and achieve excellent dust capture strength, excellent antibacterial properties, and the effect of improving physical properties

Active Publication Date: 2021-04-16
HUVIS CORP
View PDF14 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the composite filter manufactured by this technique, the deodorant powder is not fixed and flows inside the fiber web due to the external environment such as vibration, so it has the disadvantage of agglomerating to the bottom of the fiber web, and because the antibacterial property is reduced, Therefore, bacteria multiply on the filter, so there is a problem of polluting the indoor air
[0007] Recently, high-efficiency particulate air filters and cockpit air filters using other filters are used, and antibacterial functions are additionally provided here, but the existing antibacterial agents and methods used in such filters sterilize some bacteria The effect is almost no or very low, and it also causes secondary pollution and chemical toxicity, which will cause harmful problems to the human body

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
  • Nonwoven fabric for cabin air filter comprising low melting point polyester fiber
  • Nonwoven fabric for cabin air filter comprising low melting point polyester fiber
  • Nonwoven fabric for cabin air filter comprising low melting point polyester fiber

Examples

Experimental program
Comparison scheme
Effect test

manufacture example 1 to 6

[0062] The core layer uses polyethylene terephthalate with a melt viscosity of about 2300 poise at 280°C, and the skin layer uses low-melting point polyester resin. The weight ratio of the skin layer to the core layer is 50:50 through conventional compounding. The polyester fiber for binders with improved manufacturability of the present invention was produced by spinning.

[0063] The low-melting point polyester resin is prepared through the following steps: adding terephthalic acid (TPA) and ethylene glycol (EG) to an esterification reactor, and performing conventional polymerization at 258° C. It is 96% polyethylene terephthalate polymer (PET oligomer). The obtained polyethylene terephthalate (PET) contains 2-methyl-1,3-propanediol accounting for about 42 mol% of diol components, and 2-methyl-1,3- Pentanediol was mixed at the content ratio shown in Table 1 below, and then a transesterification catalyst was added, and transesterification was performed at 250±2°C. After tha...

Embodiment 1

[0097] The first polyester fiber used was made of polyethylene terephthalate with a melting point of about 265°C with a 6-lobed cross-section (68% roundness), and the second polyester fiber used the low Melted polyester fiber.

[0098] When manufacturing the second polyester fiber, the skin layer and the core layer each contain 3% by weight (relative to the weight of the second polyester fiber) of illite particles, and 15% by weight of silver-based zeolite based on the weight of the illite particles. Inorganic antibacterial agent.

[0099] The first polyester fiber is a single fiber with a denier of 1.4 denier and a fiber length of 6 mm, and the second polyester fiber is a single fiber with a denier of 2 denier and a fiber length of 6 mm. After mixing 30% of the first polyester fiber and 70% by weight of the second polyester fiber, the non-woven fabric for the cabin air filter is manufactured through a needle-punching process and a thermal bonding process.

Embodiment 2

[0101] A nonwoven fabric for a cabin air filter was produced in the same manner as in Example 1, except that the second polyester fibers contained 1% by weight of illite particles.

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

PropertyMeasurementUnit
melting pointaaaaaaaaaa
softening pointaaaaaaaaaa
melt viscosityaaaaaaaaaa
Login to View More

Abstract

The present invention relates to a nonwoven fabric for cabin air filter including a low melting point polyester fiber, in which the nonwoven fabric for cabin air filter includes a first polyester fiber containing a polyester resin having a melting point higher than 250 DEG C and a second polyester fiber containing a low melting point polyester resin having a softening point of 100 to 150 DEG C, the first polyester fiber is a modified cross-sectional yarn having a roundness of 50 to 80%, the second polyester fiber includes a low melting point polyester resin which is formed from an acid component included of terephthalic acid or ester-forming derivatives thereof, and a diol component included of 2-methyl-l,3-propanediol, 2-methyl-1,3-pentanediol, and ethylene glycol, and the second polyester fiber contains illite particles, i.e., micaceous mineral, or a mixture of the illite particles and sericite particles, and silver-based inorganic antibacterial agent particles.

Description

technical field [0001] The present invention relates to a non-woven fabric for a cabin air filter containing low-melting point polyester fibers, and more particularly, the present invention relates to a non-woven fabric containing low-melting point polyester having excellent filtration efficiency and improved antibacterial properties by using fibers containing a novel low-melting point polyester resin. Fiber cabin air filter with non-woven fabric. Background technique [0002] Cabin air filters are used in automobiles to purify interior air, and have functions of removing dust inside vehicles and removing harmful gases such as volatile organic compounds due to demands for consumers' health and interior comfort. [0003] For existing conventional cabin air filters, as a method of suppressing harmful bacteria and harmful gases, chemical antibacterial agents or deodorant powders such as activated carbon or zeolite, titanium dioxide photocatalyst, etc. The method of spinning, e...

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): D04H1/541D04H1/55D04H3/153D01F6/92D01F1/10
CPCB01D39/163B01D2239/0216B01D2239/1233B01D2239/0407B01D2239/045B01D2239/0442B01D2239/064D04H1/435D04H1/55D04H1/5412D04H1/407D04H1/413D04H1/485B01D39/1623D01F8/14D01D5/253D01F1/10D01F1/103D01D5/34B01D2239/0618B01D2239/10B01D2325/04B01D2325/32
Inventor 申铉昱李敏成崔载民金成烈
Owner HUVIS CORP