Check patentability & draft patents in minutes with Patsnap Eureka AI!

A kind of preparation method of two-component sound-absorbing cotton

A sound-absorbing cotton, two-component technology, applied in the field of sound-absorbing materials, can solve the problems of affecting the service life of products, insufficient hardness, human body damage, etc., to optimize process design and production, sound-absorbing effect and performance, and easy to recycle. Effect

Active Publication Date: 2020-02-04
GUANGDE TIANYUN NEW TECH
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, PET polyester fiber is a chemical synthetic fiber with a high melting point (above 250°C) and is difficult to degrade, which makes the edge sealing mold temperature of traditional PET / PP two-component sound-absorbing cotton products high
At the same time, it is difficult to recycle PET / PP two-component sound-absorbing cotton scraps
[0003] The existing sound-absorbing felt for automobiles has sound-absorbing, fire-proof, shock-proof, heat-insulating, etc., but the sound-absorbing effect is still not up to the expected effect, and the shock-proof and heat-insulating effects are not very good, and the hardness is not enough, which directly affects the quality of the product. The service life, the radiation around the existing car is relatively large, it is easy to cause harm 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
  • A kind of preparation method of two-component sound-absorbing cotton
  • A kind of preparation method of two-component sound-absorbing cotton

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] see Figure 1-2 As shown, a two-component sound-absorbing cotton, the two-component sound-absorbing cotton 7 includes a cotton core 9, a sealing edge 8, a through hole 10, a semicircular groove 11 and a curved groove 12, and the cotton core 9 includes an outer layer 1. Middle surface layer 2, core layer 3, V-shaped connecting hole 4 and tree-shaped connecting hole 5, the central body part of the two-component sound-absorbing cotton 7 is designed as a cotton core 9, and the periphery of the cotton core 9 is designed as a sealed Edge 8, the lower right corner of the cotton core 9 is provided with a through hole 10, the periphery of the through hole 10 is provided with a sealing edge 8, the lower left corner of the two-component sound-absorbing cotton 7 is designed with a curved groove 12, the A semicircular groove 11 is designed on the right middle and lower edge of the two-component sound-absorbing cotton 7 .

[0023] Further, the stacking arrangement of the cotton core...

Embodiment 2

[0035] A two-component sound-absorbing cotton, the difference between this embodiment and embodiment 1 is that the middle surface layer 2 is made by uniform laying and pressing of plant fibers.

[0036] Plant stalks or leaves are squeezed and dried to obtain white plant fibers, which have the same excellent sound-absorbing function as polycarbonate fibers.

Embodiment 3

[0038] A two-component sound-absorbing cotton, the difference between this embodiment and embodiment 1 is that the core layer 3 is made by uniform laying and pressing of plant fibers.

[0039] Plant stalks or leaves are squeezed and dried to obtain white plant fibers, which have the same excellent sound-absorbing function as mine asbestos fibers.

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
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a preparation method of two-component sound-absorbing cotton. The two-component sound-absorbing cotton comprises a cotton core, a seal edge, a through hole, a semicircular slotand a curved slot. The cotton core comprises an external layer, an intermediate layer, a core layer, V-shaped connection holes and tree-shaped connection holes. The central main part of the two-component sound-absorbing cotton is designed as the cotton core, the periphery of which is designed as the seal edge. The bottom right corner of the cotton core is provided with the through hole, the periphery of which is provided with the seal edge. The bottom left corner of the two-component sound-absorbing cotton is designed as the curved slot. The central bottom edge of the right side of the two-component sound-absorbing cotton is designed as the semicircular slot. Through reasonable raw material selection and reasonable ratio of raw materials, the prepared two-component sound-absorbing cottonis light in weight, has good sound-absorbing effect and performance, has strong decorative performance, is convenient for processing, raises work efficiency of processing, reduces pollution due to useof green materials, raises environmental protection effect, and is convenient for recycling of sound-absorbing cotton.

Description

technical field [0001] The invention relates to the technical field of sound-absorbing materials, in particular to a preparation method of two-component sound-absorbing cotton. Background technique [0002] With the progress of society and the continuous improvement of people's consumption level, customers have higher and higher requirements for automobile sound absorption, sound insulation, light weight, and comfort. Traditional PET (polyethylene terephthalate) / PP (polypropylene) two-component sound-absorbing cotton has been widely used in the field of automotive sound insulation and noise reduction, which greatly improves the NVH performance of the vehicle. However, PET polyester fiber is a chemical synthetic fiber with a high melting point (above 250°C) and is difficult to degrade, which makes the edge sealing mold temperature of traditional PET / PP two-component sound-absorbing cotton products high. At the same time, it is difficult to recycle PET / PP two-component sound-...

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 Patents(China)
IPC IPC(8): B32B3/20B32B19/04B32B19/06B32B19/08B32B27/02B32B27/12B32B27/36B32B33/00B32B37/02B32B38/04
Inventor 王皆晴何卫军李超李峰
Owner GUANGDE TIANYUN NEW TECH
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com