Supercharge Your Innovation With Domain-Expert AI Agents!

Nonwoven Laminates

一种非织造布、熔喷非织造布的技术，应用在非织造布、纺织品和造纸、纺织等方向，能够解决聚乙烯非织造布叠层体耐水性改良不充分等问题，达到抗拉强度优异、低温密封性优异的效果

Active Publication Date: 2016-12-28
MITSUI CHEM INC
View PDF14 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the polyethylene nonwoven fabric laminate obtained by this method also has insufficient improvement in water resistance.

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 Laminates

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0132]

[0133] An ethylene-1-hexene copolymer obtained by a metallocene catalyst [manufactured by Primepolymer Co., Ltd., product name: Evolue H SP50800P, density: 0.951 g / cm 3 , MFR: 135g / 10 minutes] 50 parts by weight, and ethylene polymer wax obtained by metallocene catalyst [Mitsui Chemicals Co., Ltd., product name Excerex10500, density: 0.960g / cm 3 , weight-average molecular weight: 1,300, softening point 119 ° C] 50 parts by weight of the mixture, from the spinneret with 0.4mmφ, 360 holes of the nozzle, the molten resin is discharged at 0.7g / min per single hole, by the melt blown method Melt spinning is performed to form microfibers, which are deposited on the collection surface to produce mesh weight 30g / m 2 Meltblown nonwovens (MB).

[0134]

[0135] As the ethylene-based copolymer constituting the sheath, ethylene-1-butene copolymer [manufactured by Primepolymer Co., Ltd., product name: NEO-ZEX NZ50301, density 0.950 g / cm was used. 3 , MFR (according to ASTM D1...

Embodiment 2

[0139] In place of the ethylene-based polymer wax of the melt-blown nonwoven fabric used in Example 1, an ethylene-based polymer wax obtained by a metallocene catalyst was used [manufactured by Mitsui Chemicals Co., Ltd., product name Excerex 20700, density: 0.970 g / cm 3 , weight average molecular weight: 3,200, softening point: 124°C], using the same manufacturing method as in Example 1, a nonwoven fabric laminate having a three-layer structure was obtained. The physical properties of the obtained nonwoven fabric laminate were measured by the methods described above. The results are shown in Table 1.

Embodiment 3

[0141] Instead of the ethylene-based polymer wax of the melt-blown nonwoven fabric used in Example 1, use an ethylene-based polymer wax obtained by using a Ziegler catalyst [Mitsui Chemicals Co., Ltd., product name Hi-wax100P, density: 0.950g / cm 3 , weight average molecular weight: 1,100, softening point: 116°C], using the same manufacturing method as in Example 1, a nonwoven fabric laminate having a three-layer structure was obtained. The physical properties of the obtained nonwoven fabric laminate were measured by the methods described above. The results are shown in Table 1.

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
softening pointaaaaaaaaaa
melt flow indexaaaaaaaaaa
diameteraaaaaaaaaa
Login to View More

Abstract

The subject of the present invention is to obtain a laminated nonwoven fabric with excellent tensile strength and softness without deteriorating water resistance (barrier properties) even when heat embossing is performed to maintain high abrasion resistance (fuzz resistance) The present invention provides a nonwoven fabric laminate, which is characterized in that it is formed by laminating a spunbond nonwoven fabric on at least one side of a meltblown nonwoven fabric (A), and the meltblown nonwoven fabric (A) Fiber comprising an ethylene-based polymer resin composition comprising an ethylene-based polymer (a), and an ethylene-based polymer wax (b) having a weight-average molecular weight of less than 6,000 and a softening point exceeding 110° C. , the spunbonded nonwoven fabric includes fibers formed of an ethylene-based polymer (y), or fibers formed of an ethylene-based polymer (y) and a polyester-based polymer (x).

Description

technical field [0001] The present invention relates to a nonwoven fabric laminate that can be sterilized by electron beams or the like and is excellent in water resistance, low-temperature sealing properties, and flexibility. Background technique [0002] Compared with polypropylene nonwoven fabric, polyethylene nonwoven fabric is soft and has good touch, excellent heat sealability, and the degree of deterioration after irradiation with electron beams, radiation, etc. is also low, so it is used as medical gowns and absorbent articles. , Packaging / carrying / backing materials for various objects are suitable. [0003] However, polyethylene is generally poorer in melt spinnability than polypropylene, so polyethylene nonwoven fabrics obtained by spunbonding or meltblown methods are difficult to obtain fine fibers and have poor texture, so their applications are very popular. limit. As an attempt to reduce the fiber diameter of polyethylene fibers, raising the spinning temperat...

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): B32B5/26D01F8/06D01F8/14D04H1/593D04H3/16
CPCB32B5/022B32B5/26D01F6/46D04H1/4291D04H1/559B32B2535/00B32B2260/021B32B2262/0253B32B2262/0276B32B2260/046B32B5/08B32B7/04B32B2250/20B32B2307/54B32B2307/546B32B2307/7265Y10T442/637Y10T442/638Y10T442/641B32B2250/02B32B2307/718D04H1/593D04H3/16B32B2305/20B32B2250/242B32B2305/28D10B2321/02D10B2331/04D10B2509/00
Inventor 市川太郎川边邦昭饭场康三津田武
Owner MITSUI CHEM INC
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