Patent Application
20100216362
1. Field of Invention
The invention relates to multi-layered clothing materials and more particularly to such a multi-layered clothing material with improved characteristics including UV (ultraviolet) radiation protection, moisture penetration rate decrease, and body warmness increase.
2. Description of Related Art
Waterproof clothes are commercially available. However, such clothes are poor in maintaining body warmness.
Another typical clothing material comprises an ePTFE (expanded polytetrafluoroethylene) layer and a metal (e.g., aluminum, copper, silver, gold) or alloy layer which is formed on the ePTFE layer by evaporation in the manufacturing process. Clothes made of this material are waterproof, can prevent moisture from entering to contact the skin, and has IR (infrared) proof effect.
Still another typical clothing material comprises an upper layer of plastic, an intermediate layer formed of a mixture of activated carbon material and bio-degradable material, and a lower layer of fabric. This type of clothing material has specific applications.
U.S. Pat. No. 7,150,055 discloses a multi-layered bedclothes material. Thus, the need for improvement still exists.
It is therefore one object of the invention to provide a multi-layered clothing material.
The above and other objects, features and advantages of the invention will become apparent from the following detailed description taken with the accompanying drawings.
Referring to
A metal powder a is comprised of aluminum, titanium, zinc, and magnesium. 95-98 wt % adhesive b is uniformly mixed C with 2-5 wt % metal powder a to form an adhesive mixture m.
20-100 g/m2 of the adhesive mixture m is applied on a releasable substrate. Next, it is heated and pressed to form a mixture film A. The mixture film A is in turn adhered on a fabric E to form a product F by pressing and heating (see
Alternatively, 40-43 wt % adhesive b and 2-5 wt % metal powder a are uniformly mixed together to form an adhesive mixture m. 20-100 g/m2 of the adhesive mixture m is applied on a releasable substrate and they are heated and pressed to form a mixture film A. Next, 50-60 wt % polymeric film B is next applied on the mixture film A. Next, they are heated and pressed to form an adhesive film C comprising a top polymeric film B and a bottom mixture film A (see
Moreover, the adhesive film C is adhered on a fabric E by applying an adhesive film D therebetween and heating to form a product G (see
Moreover, a mixture film A′ is adhered on a polymeric film B′ and next the product G is adhered thereon to form a product G′ by pressing and heating (see
The adhesive film C has a thickness of 20 μm-45 μm. The adhesive mixture m has a thickness of 15 nm-150 nm. The polymeric film B is selected from a group consisting of ePTFE (expanded polytetrafluoroethylene), OPTE (oriented polyester), TPU (thermoplastic urethane), TPE (thermoplastic elastomer), and TPR (thermoplastic rubber). The fabric E can be chosen from any suitable materials.
The films A, B, C, and D have a moisture penetration rate between 30,000-45,000 g/m2 per day and an IR reflection percentage between 85%-1 00%. The mixture film A is the “Raintex-AR200” available from Formosa Raintex Co., Ltd. The polymeric film B is the “Raintex-AR300” available from Formosa Raintex Co., Ltd. The adhesive film C is the “Raintex-ZR400” available from Formosa Raintex Co., Ltd. The adhesive film D is the “Raintex-MR450” available from Formosa Raintex Co., Lt. All of data listed in the above two paragraphs are tabulated in TABLE I below.
It is seen that the higher percentage of metal powder the higher the IR reflection will be but the lower the moisture penetration rate will be.
Referring to
Film A and fabric are the “Raintex-TAR200” available from Formosa Raintex Co., Ltd. Film B and fabric are the “Raintex-TTR300” available from Formosa Raintex Co., Ltd. Film C and fabric are the “Raintex-TZR400” available from Formosa Raintex Co., Ltd. Film D and fabric are the “Raintex-TMR450” available from Formosa Raintex Co., Ltd. The above data is further illustrated in TABLE II below.
Moreover, the product of the invention can offer protection from UV (ultraviolet) radiation and IR (infrared) radiation.
The “Raintex-AR200” with 2 wt % aluminum powder and 98 wt % adhesive b is chosen to uniformly mix to form an adhesive mixture m. Next, 25 g/m2 of the adhesive mixture m is applied on a releasable substrate. Next, it is heated and pressed to form a mixture film A. Polymeric film B made of ePTFE having a thickness 20 μm is applied on the mixture film A in a speed of 25 m/minute. Next, they are adhered on a fabric E. Next, they are pressed and heated at a temperature between 90° C. and 140° C. Finally, a product is formed.
The mixture film A has a moisture penetration rate of 45,000 g/m2 per day and IR reflection of 85% based on the test result of JISL1099B1. Moreover, the product is the “Raintex-TAR200 (film A+fabric)” which has a temperature range felt by the human body of 25° C.±1.5° C. based on the test method of FTTS-FA-10.43.
The “Raintex-TR200” with 3.1 wt % titanium powder and 96.9 wt % adhesive b is chosen to uniformly mix to form an adhesive mixture m. Next, 25 g/m2 of the adhesive mixture m is applied on a releasable substrate. Next, it is heated and pressed to form a mixture film A. Polymeric film B made of ePTFE having a thickness 30 μm is applied on the mixture film A in a speed of 25 m/minute. Next, they are adhered on a fabric E. Next, they are pressed and heated at a temperature about 135° C. Finally, a product is formed.
The mixture film A has a moisture penetration rate of 40,000 g/m2 per day and IR reflection of 92% based on the test result of JISL1099B1. Moreover, the product is the “Raintex-TTR300 (film B+fabric)” which has a temperature range felt by the human body of 25° C.±1.8° C. based on the test method of FTTS-FA-10.43.
The “Raintex-ZR400” with 3.6 wt % zinc powder and 96.4 wt % adhesive b is chosen to uniformly mix to form an adhesive mixture m. Next, 25 g/m2 of the adhesive mixture m is applied on a releasable substrate. Next, it is heated and pressed to form a mixture film A. Polymeric film B made of ePTFE having a thickness 40 μm is applied on the mixture film A in a speed of 25 m/minute. Next, they are adhered on a fabric E. Next, they are pressed and heated at a temperature about 135° C. Finally, a product is formed.
The mixture film A has a moisture penetration rate of 35,000 g/m2 per day and IR reflection of 98.5% based on the test result of JISL1099B1. Moreover, the product is the “Raintex-TZR300 (film C+fabric)” which has a temperature range felt by the human body of 25° C.±1.9° C. based on the test method of FTTS-FA-10.43.
The “Raintex-MR400” with 3.9 wt % magnesium powder and 96.1 wt % adhesive b is chosen to uniformly mix to form an adhesive mixture m. Next, 25 g/m2 of the adhesive mixture m is applied on a releasable substrate. Next, it is heated and pressed to form a mixture film A. Polymeric film B made of ePTFE having a thickness 40 μm is applied on the mixture film A in a speed of 25 m/minute. Next, they are adhered on a fabric E. Next, they are pressed and heated at a temperature about 145° C. Finally, a product is formed.
The mixture film A has a moisture penetration rate of 30,000 g/m2 per day and IR reflection of 100% based on the test result of JISL1099B1. Moreover, the product is the “Raintex-TMR450 (film D+fabric)” which has a temperature range felt by the human body of 25° C.±2° C. based on the test method of FTTS-FA-10.43.
While the invention herein disclosed has been described by means of specific embodiments, numerous modifications and variations could be made thereto by those skilled in the art without departing from the scope and spirit of the invention set forth in the claims.
