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

Nonwoven fabric

A non-woven fabric, flat technology, applied in the direction of non-woven fabrics, textiles, papermaking, packaging items, etc., can solve the problems of low flatness and insufficient softness of non-woven fabrics, and achieve suitable bulkiness and softness , Good erasability, little irritation effect

Active Publication Date: 2015-11-18
TORAY IND INC
View PDF10 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the proposed nonwoven fabric has a problem of insufficient flexibility of the nonwoven fabric due to its low flatness, although the impermeability is good due to the diffuse reflection of light.

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
  • Nonwoven fabric
  • Nonwoven fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0083] 20% by mass of a flat multi-lobe cross-section polyester fiber (single fiber fineness: 1.7 dtex, fiber length: 51 mm) with a flatness of 2.1, a degree of irregularity of 2.7, a convex portion ratio of 0.8, and a cross-sectional shape having 8 convex portions After uniformly blending with 80% by mass of rayon fiber (single fiber fineness: 1.7dtex, fiber length: 51mm), the basis weight is 60g / cm by a conventional method. 2 carded fiber web, the hydraulic pressure of water injection (waterjet) is 50kg / cm 2 , speed is 1m / min, nozzle shape: The sheet is produced by double-sided processing under the conditions of 0.6mm pitch, 834 holes, and 500mm effective width, and then dried at a temperature of 120°C to obtain a weight per unit area of ​​50g / m 2 of non-woven fabrics. Table 1 shows the fiber configuration of the nonwoven fabric, and Table 2 shows the evaluation results.

Embodiment 2

[0085] 50% by mass of a flat multi-lobe cross-section polyester fiber (single fiber fineness 1.7 dtex, fiber length 51 mm) with a flatness of 2.1, a degree of irregularity of 2.7, a protrusion ratio of 0.8, and a cross-sectional shape having 8 protrusions and Rayon fiber (single fiber fineness 1.7dtex, fiber length 51mm) is uniformly mixed with 50% by mass, and the weight per unit area is 60g / cm by a conventional method. 2 Carding machine fiber web, the hydraulic pressure of water injection is 50kg / cm 2 , speed is 1m / min, nozzle shape: The sheet is produced by double-sided processing under the conditions of 0.6mm pitch, 834 holes, and 500mm effective width, and then dried at a temperature of 120°C to obtain a weight per unit area of ​​50g / m 2 of non-woven fabrics. Table 1 shows the fiber configuration of the nonwoven fabric, and Table 2 shows the evaluation results.

Embodiment 3

[0087] 80% by mass of a flat multi-lobed cross-section polyester fiber (single fiber fineness: 1.7 dtex, fiber length: 51 mm) with a flatness of 2.1, a degree of irregularity of 2.7, a convex portion ratio of 0.8, and a cross-sectional shape having 8 convex portions After uniformly blending with 20% by mass of rayon fiber (single fiber fineness: 1.7dtex, fiber length: 51mm), the basis weight is 60g / cm by a conventional method. 2 carded fiber web, the hydraulic pressure of water injection is 50kg / cm 2 , speed is 1m / min, nozzle shape: After the sheet is produced by double-sided processing under the conditions of 0.6mm pitch, 834 holes, and 500mm effective width, it is dried at a temperature of 120°C to obtain a weight per unit area of ​​50g / m 2 of non-woven fabrics. Table 1 shows the fiber configuration of the nonwoven fabric, and Table 2 shows the evaluation results.

[0088] [Table 1]

[0089] 【Table 1】

[0090]

Example 1

Example 2

Example 3

...

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
Irregularityaaaaaaaaaa
Irregularityaaaaaaaaaa
Login to View More

Abstract

The present invention provides a nonwoven fabric which is suitable as a wiper that is indented for human use and that is to be used in cleansing or beautifying the skin. The nonwoven fabric combines a high absorbing and holding power for a liquid such as water or a medicinal solution and a high desorbing power therefor, has excellent bulkiness and softness, is agreeable to the touch and lowly irritant to the skin, and exhibits excellent wiping-off properties. A nonwoven fabric made of a blend which comprises 20 to 80 mass% of a polyester-based fiber having a flat multi-lobed cross section and 20 to 80 mass% of a cellulose-based fiber, wherein the cross section of the polyester-based fiber has an oblate shape which has at least six lobes on the circumference and which satisfies a specified oblateness and a specified degree of modification.

Description

technical field [0001] The present invention relates to a non-woven fabric, which can obtain more excellent bulkiness, softness and skin touch due to its excellent water absorption and high liquid retention for water, medicinal liquid, etc. It can be applied to the cosmetic use of the skin or for cleansing and wiping. The present invention relates to a non-woven fabric that has high liquid retention for cosmetics, especially when used for cosmetic purposes, has the ability to release cosmetics as needed, and has high erasability when cleaning and wiping. It does not damage the skin, and is suitable for wipers (wipers) that can hold the wiped dirt in the non-woven fabric to prevent re-pollution. Background technique [0002] Conventionally, various nonwoven fabrics have been proposed as nonwoven fabrics for cleaning and wiping people which are used in a wet state. For example, a nonwoven fabric that can prevent volume shrinkage when wet and is highly flexible by making the ...

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): D04H1/4391A45D34/04D04H1/425D04H1/435
CPCD04H1/4391A45D34/04A45D2200/1018D04H1/425D04H1/435D04H1/4382D04H1/43828D04H1/43832D04H1/43835D04H1/43912A47L13/16D10B2201/20D10B2331/04
Inventor 笠原辉彦谷野宫政浩宫内俊马
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