Supercharge Your Innovation With Domain-Expert AI Agents!

Breathable material for cauldron

A technology for gas-permeable materials and furnaces, applied in the field of gas-permeable components, can solve problems such as productivity decline, defects, deformation and transportation of furnaces, and achieve the effect of quality improvement

Active Publication Date: 2015-08-19
NITTO LIFETEC CORP
View PDF12 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, using soft air-permeable materials such as spunlace non-woven fabrics such as nylon or polyethylene terephthalate (PET) to improve the use feeling of the warmer has the characteristics of easy deformation and is difficult to obtain in the production process of the warmer. During the transportation process, the bodhisattva is deformed and the transportation is poor, etc., and the productivity is reduced.

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
  • Breathable material for cauldron
  • Breathable material for cauldron
  • Breathable material for cauldron

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0122] (non-woven fabric)

[0123] As the non-woven fabric, a spun-bonded non-woven fabric (embossed area ratio 11%, basis weight 30 g / m 2 ). ,

[0124] In addition, the area of ​​each embossing of the above-mentioned nonwoven fabric is 1.2mm 2 .

[0125] (porous film)

[0126] 100 parts by weight of linear low-density polyethylene (Mw: 60,000, MFR (190°C) 2.3g / 10min), ethylene-α-olefin copolymer (Mw: 112,000, ) is 3.6g / 10 minutes), 40 parts by weight, calcium carbonate (average particle diameter: 1.1 μm) 140 parts by weight, 1 part by weight of stearic acid and 1 part by weight of antioxidant are melt-kneaded to obtain a mixed raw material.

[0127] Using the above mixed raw materials, melt-extrude by T-die method, and stretch along the length (MD) direction at a stretching temperature of 100°C at a stretching ratio of 4 times by a uniaxial roll stretching method to obtain a thickness 70μm polyethylene porous film.

[0128] (adhesive)

[0129] As the adhesive, a hot-m...

Embodiment 2

[0135] In addition to changing the non-woven fabric to a spun-bonded non-woven fabric manufactured by a spunbond method (embossed area ratio 13%, basis weight 30g / m2) containing PBT fibers 2 , The area of ​​each embossing is 0.6mm 2 ) except that a breathable material was obtained in the same manner as in Example 1. The compressive strength (ring pressure method, MD direction) of the breathable material is 4.3N, and the wear resistance is grade 4.

Embodiment 3

[0137] Using a spunbonded nonwoven fabric made of PET fibers by a spunbond method (embossed area ratio 11%, basis weight 20g / m 2 , The area of ​​each embossing is 1.2mm 2 ) and spunlace non-woven fabrics containing PET fibers made by spunlace (basis weight 20g / m 2 ) composite non-woven fabric as a non-woven fabric.

[0138] Except having changed the nonwoven fabric into the said composite nonwoven fabric, it carried out similarly to Example 1, and obtained the air-permeable material. In addition, an adhesive layer was formed on the surface of the composite nonwoven fabric on the side of the spunbonded nonwoven fabric, and a porous film was bonded thereto.

[0139] The compressive strength (ring pressure method, MD direction) of the breathable material is 2.9N, and the wear resistance is grade 5.

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
base weightaaaaaaaaaa
base weightaaaaaaaaaa
densityaaaaaaaaaa
Login to View More

Abstract

An air-permeable member for portable body warmers includes a nonwoven fabric and a porous film in a layered structure. The nonwoven fabric is a spunbonded nonwoven fabric having an embossment area ratio of 5% to 20% and a METSUKE of 10 to 80 g / m2, the porous film has a thickness of 30 to 200 μm, and the air-permeable member has a compressive strength in machine direction of from 2 to 5.5 N as a maximum compressive load measured through a ring crush method by sampling a 60-mm square test piece; rounding the test piece with a circumference agreeing the transverse direction to give a cylindrical sample; compressing the cylindrical sample in the machine direction using a tensile tester at a temperature of 23° C. and relative humidity of 50% at a compressing speed of 300 mm / min.; and measuring compressive loads at distortions of 0 to 10 mm.

Description

technical field [0001] The present invention relates to an air-permeable member (air-permeable material) used for a body warmer. More specifically, it relates to a breathable material for a warmer that can form a comfortable warmer that is less deformed and does not feel uncomfortable during use. Background technique [0002] Conventionally, as a member (bag constituting material) constituting a storage bag (bag body) for enclosing a heating element of a warmer (disposable warmer, etc.), it is known to bond a porous film to an air-permeable base material such as a nonwoven fabric. The obtained air-permeable material (air-permeable material) (for example, refer to Patent Documents 1 to 4). [0003] These heart warmers are required to have an excellent feeling of use without causing discomfort when they are attached to clothes or the skin. [0004] Patent Document 1: Japanese Patent Application Laid-Open No. 8-131472 [0005] Patent Document 2: Japanese Patent Application L...

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): A61F7/08F24D19/06
CPCA61F7/034D04H1/559D04H1/55A61F2007/0258
Inventor 长野理希武田安洋
Owner NITTO LIFETEC CORP
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