JP2006028702A - Silver thread cloth - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide silver thread cloth that suppress the proliferation of ticks sticking to bedclothes and a variety of microorganisms to enable sanitary supervision as well as gives the gloss and beauty peculiar to silver threads to the surface of the bedclothes with good heat retention and air permeability. <P>SOLUTION: The silver thread cloth according to this invention is produced by metallzing base film 2a with high-purity silver 2b on one face or both faces, covering the silver-metallized film with a protecting film 2c, finely slitting the film and weaving the resultant silver fine threads as warp with multifilament as weft. The warp silver threads are controlled so that their metallized faces come out on the surface without twisting. Further, when multifilament yarn is used as weft, they are flattened and the silver gloss can perfectly be retained. In addition, the silver ion develops excellent antimicrobial activity against Staphylococcus aureus. Accordingly, the silver thread fabric is applied to bedclothes, sweat decay can be suppressed and unpleasant smell is relieved. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a silver thread fabric suitable for application to bedding such as a futon side (kawa), a bed pad side, a pillow side, or an insole mat for a stroller.

  Bacteria contained in sweat and waste products secreted from the human body live in the daily living environment. Silver has long been known to have an excellent bactericidal effect on these bacteria. In particular, it is known to have a function of sterilizing Staphylococcus aureus causing malodor and removing odor. In addition, light and silver ions inherent to silver have an excellent effect on mite repellency (average repellent rate is about 90 to 95% in the test results) because insects hate it.

Heretofore, there have been several techniques for applying such silver effects to bedding such as the futon side. The first is that disclosed in Japanese Patent Laid-Open No. 8-35173, in which silver-plated fibers are mixed with nylon fiber or the like to obtain 1% by weight to obtain a yarn, and the fabric is woven with this yarn. Japanese Laid-Open Patent Publication No. 2000-27056, in which silver yarn is knitted into a knitted fabric at an arbitrary ratio during the knitting process.
JP-A-8-35173 JP 2000-27056 A

  However, the fabric described in the former (JP-A-8-35173) has an extremely low antibacterial function because it has a very low mixing rate of silver-plated fibers and is buried in nylon fibers. In particular, we could hardly expect the repellent properties of mites due to the light and silver ions inherent to silver. Further, the fabric described in the latter (Japanese Patent Laid-Open No. 2000-27056) is one in which the silver yarn is twisted in order to knit the silver yarn in the knitting process of the knitted fabric, and the shine (gloss) peculiar to the silver yarn is obtained on the surface of the fabric. It wasn't.

  The present invention is intended to solve the above-mentioned problems, and the object of the present invention is to suppress the growth of mites and various bacteria that easily adhere to bedding, and to manage hygienically and bedding An object of the present invention is to provide a silver thread fabric having a surface with a unique brightness and beauty of silver thread and having good heat retention and breathability.

  In order to achieve the above object, the silver yarn fabric according to the present invention uses silver yarn formed by vacuum-depositing silver on both sides or one side of a substrate film, and covering the silver-deposited surface with a protective film and cutting it into strips. The multifilament yarn is woven using wefts, and the entire surface has a silver-specific shine (gloss).

  In addition, the silver yarn fabric according to the invention of claim 2 is characterized in that the base film is a PET film, the vapor deposition property of high purity silver is improved, and the elongation and tensile strength of the silver yarn are improved. It was constructed so as to obtain an excellent dimensional stability.

  Furthermore, the silver yarn fabric according to the invention of claim 3 is characterized in that the silver yarn has a square cross section, and is configured so that the direction of the silver yarn can be easily aligned during aging to the warping beam.

  According to the present invention, high-purity silver is vacuum-deposited on both sides or one side of a base film, and a silver yarn obtained by covering with a protective film and cutting into strips is used as a warp, and a multifilament yarn is used as a weft. As long as the warp silver yarn is warped so that the silver vapor deposition surface is on the surface, the warp silver yarn is woven without being twisted during weaving, and the multifilament yarn of the weft is thin and strong, and the cross section is flattened. Does not spoil the shine. Moreover, it exhibits excellent antibacterial activity against Staphylococcus aureus due to the inherent ionic effect of silver. Therefore, by applying the fabric of this application to bedding in particular, it is possible not only to suppress the decay of sweat and alleviate unpleasant odors, but also to demonstrate the heat storage effect and far-infrared effect of silver thread and to sleep warmly in winter. In addition, since it has good air permeability, it has various excellent effects such as being able to sleep cool in summer.

  Further, according to the invention described in claim 2, since the base film is a PET film, high purity (purity: 99.9%) of silver can be easily deposited, and the elongation and tensile strength of the silver thread can be improved. Therefore, it is possible to obtain a fabric having excellent dimensional stability by applying to the bedding, and exhibiting various excellent effects such as that the fabric does not partially stretch or deform when turned over.

  Furthermore, according to the invention described in claim 3, the silver yarn having a square cross section is easy to align so that the silver surface becomes the surface during aging to the warp beam, and once warped, the warp yarn is twisted during weaving. The fabric surface can be covered with silver-specific shine (gloss). Moreover, since the silver surface is protected (prevented by oxidation) by a protective film at the stage of yarn production, it exhibits various excellent effects such as maintaining the gloss of silver semipermanently.

  Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a schematic external perspective view of a bet pad using the fabric of the present application and a part thereof enlarged, and FIG. 2 is an enlarged cross-sectional view of a silver thread used for the fabric of the present application.

  1 is a fabric of the present application, and the fabric 1 of the present application is woven using silver yarn 2 as warp and multifilament yarn 3 as weft. The reason why the silver thread 2 is used as the warp is to make it easy to cover the surface of the fabric 1 of the present application with the silver surface of the silver thread 2. This is because if the silver yarn 2 is used as a weft, it must be woven using a special loom such as a rapier loom so that the yarn is not twisted.

  The silver thread 2 is formed by vacuum-depositing high-purity silver 2b in a constant heat atmosphere on both surfaces (preferably only on one side) of a base film (preferably PET film) 2a, and the deposited surface is subjected to an antioxidant function, etc. It is covered with a protective film 2c and is cut into strips. The cutting may be performed mechanically to a desired width with a cutting machine (not shown) and sequentially wound around a warping beam (not shown). That is, it is excellent to carry out the production and warping of the silver thread 2 simultaneously.

  When the silver thread 2 is cut by the cutting machine, the silver thread 2 has a square cross section as shown in FIG. This is because, depending on the function of the cutting machine, it is easy to align so that the silver surface constitutes the surface during aging of the warping beam. The reason why the silver surface of the silver thread 2 is covered with the protective film 2c is to prevent oxidation of the high-purity silver 2b, and is effective for maintaining the brightness (gloss) peculiar to silver semipermanently.

  The warping beam around which the silver thread 2 is wound is set in a loom (not shown) for weaving the fabric of the present application. Then, each silver thread drawn from the warping beam is bound to a winding beam (not shown) through the folds and folds (both not shown) of the loom. Thus, when the warp preparation is completed, when the loom is operated based on certain weaving software, the warp opens the warp yarn, the multifilament yarn 3 is horizontally inserted into the opening, and the beating is performed. Weaved. In this case, a plain weave is preferable. That is, plain weaving is preferable in that the fabric is strong and the silver surface is equally represented on the front and back of the fabric.

  The multifilament yarn 3 serving as the weft is a collection of a plurality of filaments without twisting. Specifically, the multifilament yarn 3 is preferably a polyester filament. Since the multifilament yarn 3 made of polyester is flattened even if it overlaps on the silver surface of the silver yarn 2, the specific shine (gloss) of the silver surface is inhibited as can be seen from the enlarged portion of FIG. It is effective in that it does not affect.

  When the fabric 1 of the present application is applied as the side 4 of the bed for betting as shown in FIG. 1, the surface of the bed for betting has an appearance that is formed by a silver surface of silver thread, and has a silver-specific shine (gloss). In addition to the beauty of the appearance (appearance) wrapped in, the silver ion generated from the silver thread 2 itself has a bactericidal function for various bacteria, which can be parasitic on the bed pad, Sterilizes the causal Staphylococcus aureus and keeps it clean and hygienic for a long time. Further, the silver thread 2 has a function excellent in conductivity, and a secondary effect such as obtaining a charge eliminating effect for removing static electricity charged on the human body can be expected.

  Next, an antibacterial test of the fabric 1 will be described. First, silver (purity 99.9%) is vacuum-deposited at 2150 ° C on both sides of the PET film, and the deposited surface is covered with an antioxidant film and cut into strips (0.5 mm width). Nippon Chemical Fiber Foundation, a small piece of this fabric obtained by weaving polyester yarn (multifilament yarn) as weft (this product) and a small piece of fabric made of cotton yarn without using silver yarn (comparative product) They were brought to the Biological Testing Center of the Society for Testing and requested an antibacterial test against staphylococcus aureus (JIS L 1902, bacterial liquid absorption method).

As a result of the antibacterial test, in the present product (3 × 3 cm), the viable cell count was 600 or less, but in the comparative product (3 × 3 cm), the viable cell count immediately after inoculation was 1.6 × 10 ⁴ , 18 The viable cell count after time became 1.6 × 10 ⁷ .

  As a result of the antibacterial test, “the number of viable bacteria is 600 or less” in the fabric of the present application is infinitely close to “zero”. This is a proof that an excellent antibacterial activity against Staphylococcus aureus was demonstrated by the intrinsic ionic effect of silver. Therefore, by applying the fabric of the present application to bedding such as bed pads and pillows that touch the human body, it becomes possible to suppress the decay of sweat and alleviate unpleasant odors. Moreover, the heat storage effect and the far-infrared effect are exhibited by using silver thread. On the other hand, in the case of the comparative product, it can be seen that the degree of growth of the viable cell count is remarkable.

  In the above embodiment, the side of the bedding is illustrated as an example of use of the fabric of the present application, but it is needless to say that the present invention can be applied to any other textile product that touches the human body, such as clothes and a stroller insole mat.

  The fabric of the present application is applied not only to bedding such as futons, bed pads and pillows, but also exhibits antibacterial and other functions well, and even if these beddings are covered with a dirt prevention cover, the above silver function is impaired. There is nothing, and the usability in ordinary households is high.

It is the perspective view of the pad for bets using this application cloth, and its partial enlarged view. It is an expanded sectional view of the silver thread used for this application cloth.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Application material 2 Silver thread 3 Multifilament thread 2a Base film (PET film)
2b Silver 2c Protective film (Antioxidation film)
4 Side of the pad for betting

Claims (3)

Silver is vacuum-deposited on both sides or one side of a base film, and the silver-deposited surface is covered with a protective film and cut into strips, and the yarn is woven using multifilament yarns as wefts. Silver thread fabric to do. The silver thread fabric according to claim 1, wherein the base film is a PET film. The silver yarn fabric according to claim 1 or 2, wherein the silver yarn has a square cross section.

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