Bra pad with negative poisson ratio effect and design method thereof

A negative Poisson's ratio, breast pad technology, applied in the field of new materials and new structures, can solve problems such as bra moving up, empty cups, etc., to increase comfort, relieve slippage and fall off, and have fit and ductility. Effect

Pending Publication Date: 2019-05-28
NANJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is difficult for many women to buy a bra that matches their breast shape, so there will be situations where the bra moves up and the cup is empty during activities

Method used

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  • Bra pad with negative poisson ratio effect and design method thereof
  • Bra pad with negative poisson ratio effect and design method thereof
  • Bra pad with negative poisson ratio effect and design method thereof

Examples

Experimental program
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Effect test

Embodiment Construction

[0022] Below in conjunction with specific embodiment and accompanying drawing, the present invention will be further described:

[0023] Such as figure 1 As shown, a chest pad 1 with a negative Poisson's ratio effect;

[0024] The material used for the chest pad 1 has a specific arrangement of hole structures 2: oval, circular, triangular and other shapes;

[0025] The chest pad 1 is prepared by 3D printing technology;

[0026] The volume of the hole structure 2 of the material used in the breast pad 1 accounts for 40%-80% of the breast pad body structure;

[0027] The hole structure 2 can be applied to materials such as sponge, silica gel, and fabric;

[0028] The relationship between the thickness d1 of the middle part of the chest pad 1 and the surrounding thickness d2 satisfies: 0.5

[0029] The relationship between the middle thickness d1 of the chest pad 1 and the distance D between each hole satisfies: 0.25

[0030] The relationship between the...

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PUM

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Abstract

The invention discloses a bra pad with negative poisson ratio effect and a design method thereof. The bra pad with the negative poisson ratio effect has the critical point lying in the porous structure of a liner. The special porous structure possessed by the bra pad enables the bra pad to be more comfortable and lighter, thereby conforming to the current trends in naturalness, liberation and comfortableness. The bra pad simply comprises the following design steps: firstly, the shape, the size and the thickness of the bra pad are determined; then the porous distribution of the used liner material is designed, and the porous structure is enabled to have the negative poisson ratio effect; and finally, the bra pad is arranged at the interior part of a bra in an embedded manner, thereby finishing the design of the bra pad made from a negative poisson ratio material. Through the design, the invention effectively solves the problem that the traditional bra pad cannot suitable to different breast shapes, thereby enabling the bra pad to have the advantages in better fitness, better extensibility, better air permeability, lightness and comfortableness.

Description

technical field [0001] The invention relates to a material chest pad with a negative Poisson's ratio effect designed by using a negative Poisson's ratio perforated structure, and proposes a design method for a negative Poisson's ratio material chest pad, which belongs to the field of new materials and new structures. Background technique [0002] Negative Poisson's ratio materials have become a new generation of materials with great development prospects. The negative Poisson's ratio effect enhances the mechanical properties of materials, including shear modulus, fracture toughness, thermal shock strength, and indentation resistance. Negative Poisson's ratio materials will expand laterally when subjected to uniaxial stretching. This abnormal "auxetic" behavior makes them gradually become a new class of materials worthy of attention. Accompanied by this unique stretch-swelling phenomenon, negative Poisson's ratio materials simultaneously exhibit stronger mechanical and physic...

Claims

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Application Information

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IPC IPC(8): A41C3/14
Inventor 史雨桐苟若雅任鑫韩传镇王仕龙张相玉王鑫源钱程韦文俊
Owner NANJING UNIV OF TECH
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