Patent Application
20100275467
1. Field of the Invention
The present invention relates to an insole, particularly to an insole having environment protection feature, excellent air permeability and appropriate elastic effect, which is made from recycled materials such as PET bottle, PET plastic material, waste fabric, recycled yarn. Therefore, users have snug feeling achieved by good air permeability and shock absorption so that it can provide better performance in its total application.
2. Brief Description of the Prior Art
People often wear shoes for safety and clean reasons so as to protect foot from abrasion or piercing by pebble or foreign object when walking on rough or hard ground and to keep clean with hygiene at foot. Shoes has been evolved from straw sandals, clogs etc. at early stage to shoes nowadays made by a variety of materials such as cloth shoes, leather shoes. As to the style and color, a variety of beautiful, magnificent and specialized shoes have been developed under endless pursuit of novelty and originality by the industries.
In order to improve wearing snugness, most of shoes sold on the market often incorporate extra insoles inside the shoes. The insoles is formed as a foamed material firstly by conducting foam-molding on a resin which is incorporated with foam material, then the foamed material is cut to form insoles with suitable size matching with the shape of shoes. The thenar of foot has more flexible feeling of snugness when user wears shoes having above insoles made from the foamed material and provided inside the shoes.
The above insole can achieve expected effectiveness of much more snugness when users wear shoes with the insole, but it is found in practical application that the insole, formed by conducting foam-molding on a resin incorporated with a foam material, usually has poor air permeability. Users often feel muggy when wearing these insoles. Furthermore, this insole made by foam material has no environment protection feature. Thus, this insole still has got space for improvement.
In view of the above facts, inventor of the present invention provides a new insole according to the improvement conducted on defects of the existing structure based on his abundant experience of R&D and manufacturing in relevant field so as to attain better performance in practical application.
The insole of the present invention is mainly made by the following process: reeling off single thread filament from recycled materials such as PET bottle, PET plastic material, waste fabric, yarn into fiber; intermingling plastic fiber with the above reeled-off fiber and then conducting needle punching to form air-permeable thick layer of nonwoven fabric having 3-10 mm thickness; adhering nonwoven fabric or cover layer made by general fabric on the air-permeable thick layer of non-woven fabric; conducting heat forming and cutting into suitable for ready use. In this manner, not only the insole made by recycled material possesses environment protection feature but also the air-permeable thick layer of nonwoven fabric needle-punched from fiber has excellent air permeability. Therefore, users have snug feeling achieved by good air permeability and shock absorption so that it has better performance in its total application.
The objects, the technical contents and the expected effectiveness of the present invention will become more apparent from the detailed description of the preferred embodiment in conjunction with the accompanying drawings.
Firstly referring to
The cover layer (1) can be formed by nonwoven fabric or general fabric.
The air-permeable thick layer of nonwoven fabric (2) is formed by firstly reeling off single thread filament from recycled materials such as PET bottle, PET plastic material, waste fabric, or recycled yarn into fiber, then by intermingling plastic fiber with the above fiber of recycled material, and then conducting needle punching. The air-permeable thick layer of nonwoven fabric (2) has a thickness of approximately 3-10 mm.
In this manner, please refer to
The abovementioned embodiments and drawings are not used to limit of the scope of the present invention. Equivalent variations and modifications made by the person skilled in the art without departing from the spirit and scope of the present invention are still considered to be within the scope of the present invention.
Based on the foregoing, the insole of the present invention has the following advantages when comparing with the structure of conventional insole.
Summing up above, the insole of this invention can reach expected effectiveness, and the specific configurations disclosed herein have yet not seen in the prior art of the same category of product, even has not been opened to the public before application.
