Polyethylene Hook Connecting Sheet for Soft Garment Attachment
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Solution Overview
Problem
Conventional connecting sheets used to attach articles to garments can cause dermatalgia due to hardness, and modifying the sheet base material thickness or hook members to address this issue affects productivity and quality stability.
Innovation Solution
A connecting sheet with a specific polyethylene content of 15 wt % or more and a mixed polymer density of 0.925 g/cm3 or less, combined with a sheet base material and hook members, to achieve appropriate softness and adhesion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the sheet base material is made thinner to reduce hardness and dermatalgia, then softness is improved, but productivity and quality stability deteriorate due to wrinkles and tearing
Solution Approach 1:
The patent changes the material composition parameters by specifying polyethylene content of 15-80 wt% and density of 0.915-0.935 g/cm3 for the sheet base material, achieving optimal softness without thinning the material, thus avoiding wrinkles and tearing while maintaining productivity
Solution Approach 2:
The patent uses composite materials by combining polyethylene with other polymers to achieve the desired density and softness characteristics, creating a material that is both soft to the skin and structurally sound for manufacturing
2Object-affected harmful factors
If the sheet base material is made thinner to improve softness, then comfort is improved, but manufacturing quality deteriorates due to tearing
Solution Approach 1:
The patent changes the material composition parameters by specifying polyethylene content of 15-80 wt% and density of 0.915-0.935 g/cm3, achieving optimal softness without thinning the material, thus avoiding wrinkles and tearing while maintaining productivity
Solution Approach 2:
The patent introduces hook members with curved or spherical tips protruding from the sheet surface, which distribute mechanical stress and reduce the likelihood of tearing during handling and application while maintaining material thickness
3Object-affected harmful factors
If hook members are made finer to improve softness, then comfort is improved, but the characteristics of the connecting sheet deteriorate
Solution Approach 1:
The patent applies different properties to different parts: the sheet base material has optimized softness with specific polyethylene content and density, while the hook members maintain sufficient size and strength for reliable connection, with adhesive layers providing localized bonding capability
Solution Approach 2:
The patent uses composite construction with the sheet base material, hook members, and adhesive layers working together, where each component has optimized properties for its specific function while contributing to overall system performance
Data Source
AI summary
To provide a connecting sheet with appropriate softness as well as a garment adhering article that can be attached to clothing. A connecting sheet connects with a target object by being superimposed on the target object, which includes: a sheet base material having a first main surface and a second main surface; a plurality of hook members protruding from the first main surface of the sheet base material in a first direction arranged mutually separated in a second direction in which the first main surface extends; and an adhesive layer adhered to the hook members, wherein the polyethylene content of the sheet base material and hook member is 15 weight percent or more, and the density of the polymer or polymer mixture of the sheet base material and the hook member is 0.925 g/cm3 or less.