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High Performance Nonwoven Structures

A technology of non-woven and non-woven materials, applied in the direction of bandages, other household utensils, layered products, etc., which can solve the problems of decreased absorbency and capacity, increased leakage, insufficient absorbency and capacity of the section, etc.

Active Publication Date: 2021-12-10
佐治亚 太平洋MT 哈利有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This deformation and discontinuity can lead to a decrease in overall absorbency and capacity, and an increase in undesired leakage
Existing absorbent structures are deficient in one or more of flexibility, integrity, profiled absorbency, and capacity

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0136] Example 1: Three-layer nonwoven acquisition material

[0137] This example provides a three-layer nonwoven acquisition material in accordance with the disclosed subject matter.

[0138] Using a pilot drum-former, a first material was formed. The top layer of the three-layer nonwoven acquisition material consisted of 16 gsm PET fibers (Trevira Type 245, 6.7 dtex, 3 mm) bonded with a polymer binder in emulsion form (Vinnapas 192, Wacker) at 3 gsm. The middle layer consisted of 5gsm bicomponent fibers (Trevira 1661, Type 255, 2.2dtex, 6mm). The bottom layer consisted of 24 gsm cellulose (GP 4723, fully treated pulp from Georgia-Pacific) bonded with 2 gsm of polymer binder in emulsion form (Vinnapas 192, Wacker). The average thickness of the fabricated structures was 0.76 mm. figure 1 A schematic illustration of the composition of the first material is given. Three samples of the same material were prepared.

[0139]A second material was produced having the same struct...

Embodiment 2

[0150] Example 2: Three-layer nonwoven acquisition material

[0151] This embodiment provides a three-layer nonwoven acquisition material according to the disclosed subject matter.

[0152] Using a laboratory pad former, form the material. The top layer of the three-layer nonwoven acquisition material consisted of 16 gsm PET fibers (Trevira Type 245, 6.7 dtex, 3 mm) bonded with a 3 gsm polymer binder in emulsion form (Vinnapas 192, Wacker). The middle layer consisted of 5gsm bicomponent fibers (Trevira 1661, Type 255, 2.2dtex, 6mm). The bottom layer consisted of 24 gsm cellulose (GP 4725, semi-treated pulp) bonded with 2 gsm of polymer binder in emulsion form (Vinnapas 192, Wacker). The average thickness of this structure was 1.02 mm. Figure 4 A schematic illustration of the composition of the collected material is given. Three samples of the same material were prepared.

[0153] Using a synthetic blood solution, the fluid collection characteristics of the collection mat...

Embodiment 3

[0156] Example 3: Liquid Acquisition Nonwovens

[0157] For comparative purposes, the examples of the present invention provide two control liquid acquisition nonwoven materials. These materials are designated 3A and 3B. Three sets of each material were prepared. These controls are commercially available products: LBAL (latex-bonded airlaid) product (Vicell 6609, also known as 60MAR S II) and MBAL (multi-bonded airlaid) (Vizorb 3074 , also known as 60MBAL), both products are manufactured by Georgia-Pacific in Steinfurt, Germany. The two control products had a basis weight of 60 gsm.

[0158] The fluid acquisition characteristics of the control materials were measured with synthetic blood solutions using the fluid acquisition performance testing procedure described below. Synthetic blood was purchased from Johnson, Moen & Co. Inc. (Rochester, MN) (Lot #201141; February 2014). The synthetic blood has a surface tension of 40-44 dyne / cm (ASTM F23.40-F1670) and includes variou...

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Abstract

The presently disclosed subject matter relates to multilayer nonwoven materials and their use in absorbent articles. More particularly, the presently disclosed subject matter relates to layered structures having high absorbent properties, while having a small absorbent mass compared to commercially available materials.

Description

[0001] 1. Cross references to related applications [0002] This application claims priority to U.S. Provisional Application No. 62 / 102,404, filed January 12, 2015, and U.S. Provisional Application No. 62 / 142,660, filed April 3, 2015, the contents of which are hereby incorporated by reference in their entirety . 2. Technical field [0003] The presently disclosed subject matter relates to novel nonwoven materials and their use in articles including diapers and incontinence products, feminine hygiene products, and other consumer products, such as cleaning products. More particularly, the presently disclosed subject matter relates to low absorbent mass containing structures with improved fluid acquisition and drying profiles and additional retention properties. 3. Background technology [0004] Nonwoven structures are important in a wide range of consumer products, such as absorbent articles, including baby diapers, adult incontinence products, sanitary napkins, cleaning prod...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F13/537B32B5/02B32B5/24
CPCA61F13/537B32B5/022B32B5/24B32B2262/062B32B2262/04B32B2262/02B32B2262/12B32B2555/00A61F13/5116A61F13/53708A61F13/53713A61F13/53717A61L15/22A61F2013/51178B32B2555/02A61L15/34B32B5/26
Inventor J·K·杜特凯维奇B·方
Owner 佐治亚 太平洋MT 哈利有限责任公司
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