WO1999010577A1 - Tissu servant a envelopper des aliments - Google Patents

Tissu servant a envelopper des aliments Download PDF

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Publication number
WO1999010577A1
WO1999010577A1 PCT/JP1998/003731 JP9803731W WO9910577A1 WO 1999010577 A1 WO1999010577 A1 WO 1999010577A1 JP 9803731 W JP9803731 W JP 9803731W WO 9910577 A1 WO9910577 A1 WO 9910577A1
Authority
WO
WIPO (PCT)
Prior art keywords
yarn
antibacterial
yarns
cloth
food
Prior art date
Application number
PCT/JP1998/003731
Other languages
English (en)
French (fr)
Inventor
Michiko Omori
Sataro Shimazaki
Original Assignee
Tri-Thechs Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tri-Thechs Inc. filed Critical Tri-Thechs Inc.
Priority to DE1998611632 priority Critical patent/DE69811632T2/de
Priority to US09/284,476 priority patent/US6274519B1/en
Priority to EP98938947A priority patent/EP0949368B1/en
Publication of WO1999010577A1 publication Critical patent/WO1999010577A1/ja

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Classifications

    • DTEXTILES; PAPER
    • D03WEAVING
    • D03DWOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D1/00Woven fabrics designed to make specified articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/24Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants
    • DTEXTILES; PAPER
    • D02YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02GCRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/44Yarns or threads characterised by the purpose for which they are designed
    • D02G3/449Yarns or threads with antibacterial properties
    • DTEXTILES; PAPER
    • D03WEAVING
    • D03DWOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • DTEXTILES; PAPER
    • D03WEAVING
    • D03DWOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/20Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads
    • D03D15/208Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads cellulose-based
    • D03D15/225Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads cellulose-based artificial, e.g. viscose
    • DTEXTILES; PAPER
    • D03WEAVING
    • D03DWOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/20Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads
    • D03D15/283Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads synthetic polymer-based, e.g. polyamide or polyester fibres
    • DTEXTILES; PAPER
    • D03WEAVING
    • D03DWOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/50Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads
    • DTEXTILES; PAPER
    • D10INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10BINDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2201/00Cellulose-based fibres, e.g. vegetable fibres
    • D10B2201/01Natural vegetable fibres
    • D10B2201/02Cotton
    • DTEXTILES; PAPER
    • D10INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10BINDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2201/00Cellulose-based fibres, e.g. vegetable fibres
    • D10B2201/01Natural vegetable fibres
    • D10B2201/06Jute
    • DTEXTILES; PAPER
    • D10INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10BINDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2201/00Cellulose-based fibres, e.g. vegetable fibres
    • D10B2201/20Cellulose-derived artificial fibres
    • D10B2201/22Cellulose-derived artificial fibres made from cellulose solutions
    • D10B2201/24Viscose
    • DTEXTILES; PAPER
    • D10INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10BINDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2201/00Cellulose-based fibres, e.g. vegetable fibres
    • D10B2201/20Cellulose-derived artificial fibres
    • D10B2201/28Cellulose esters or ethers, e.g. cellulose acetate
    • DTEXTILES; PAPER
    • D10INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10BINDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2401/00Physical properties
    • D10B2401/13Physical properties anti-allergenic or anti-bacterial
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y10S2/00Apparel
    • Y10S2/901Antibacterial, antitoxin, or clean room
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    • Y10S428/907Resistant against plant or animal attack
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    • Y10T428/12All metal or with adjacent metals
    • Y10T428/12014All metal or with adjacent metals having metal particles
    • Y10T428/12028Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, etc.]
    • Y10T428/12035Fiber, asbestos, or cellulose in or next to particulate component
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    • Y10T428/29Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2911Mica flake
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    • Y10T428/2913Rod, strand, filament or fiber
    • Y10T428/2915Rod, strand, filament or fiber including textile, cloth or fabric
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    • Y10T428/2936Wound or wrapped core or coating [i.e., spiral or helical]
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    • Y10T442/00Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/20Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
    • Y10T442/2525Coating or impregnation functions biologically [e.g., insect repellent, antiseptic, insecticide, bactericide, etc.]
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y10T442/322Warp differs from weft
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    • Y10T442/339Metal or metal-coated strand
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Definitions

  • the present invention directly wraps foods such as fish, meat, vegetables, etc., thereby absorbing moisture, blood, etc. oozing from the surface of these foods, improving the dryness of the surfaces, and adhering to the surfaces.
  • the present invention relates to a food wrap cloth that can enhance the hygiene of food by killing microorganisms such as bacteria. Background art
  • Silver products have been known to have antibacterial effects since the centuries AD. They have been used as tableware, such as silverware. Various antibacterial products have been invented in order to make the living environment more clean by utilizing the antibacterial action of such ion-exchangeable metals. As an example of such an invention, there is an antibacterial cross described in Japanese Patent Application Laid-Open No. 6-29769.
  • This antibacterial cloth uses rayon yarn as the weft yarn, with an inner layer body made of polyurethane foam resin mixed with an inorganic antimicrobial agent containing copper ions etc. to increase water absorption, and a cotton yarn entangled with ultrafine metal yarn such as copper. And a cloth-like outer layer body having a warp as a warp.
  • the antibacterial cloth described above had the following problems. First, there is a problem that the antibacterial cloth is heavy and hard because it uses ultrafine metal thread. Further, since the ultrafine metal thread is easily cut, it cannot be washed and used repeatedly, and the cut metal thread has a problem that the user is hurt.
  • the ultrafine metal yarn When the ultrafine metal yarn is incorporated as a warp in a woven fabric, The warp and weaving became difficult, and the hardness of the metal caused the fabric itself to become harmful, so it could only be used as weft. However, even when used as a weft yarn, it is not resistant to high-speed weaving, so the productivity is low and the surface is covered with extra-fine metal yarn. The water absorption of cellulosic fiber yarn is sacrificed, If the deodorant properties were impaired, there was a problem.
  • the present invention is, both when fully demonstrate the antibacterial and sterilization effect, as the anti-kink loss, light and soft, food La also the practicality that can be used repeatedly Ru bovine issued volatilization It is an object to provide a top cloth. Disclosure of the invention
  • the food wrap fabric according to the present invention comprises a cellulosic fiber yarn and a twisted yarn formed by twisting an antimicrobial yarn formed by vapor-depositing an antibacterial metal on a synthetic resin film and cutting it into a narrow shape with a cellulose fiber yarn. It is composed of warp yarns in combination with fabric made of cellulosic fiber yarns as weft yarns.
  • FIG. 1 is an external perspective view showing one embodiment of a food wrap cloth according to the present invention.
  • FIG. 2 is a view showing a configuration of a twisted yarn which is a material of the food wrap cloth.
  • FIG. 3 is a diagram showing the configuration of the warp yarn, FIG.
  • FIG. 4 is a schematic diagram showing a state in which the weft yarn is woven into the warp yarn
  • FIG. 5 is a diagram of the raw fabric manufactured by weaving. It is an external appearance perspective view.
  • FIG. 6 is an external perspective view showing another embodiment.
  • FIG. 1 is a diagram showing the appearance of a food wrap cloth 1 according to the present invention.
  • the food wrap cloth 1 has a twisted yarn 2 in which an antibacterial yarn 21 and a cellulosic fiber yarn 22 are twisted on its warp. It is characterized by including.
  • the antibacterial thread 21 is manufactured by depositing an antibacterial metal on a synthetic resin film by an ion deposition method or the like, and cutting it to a width of 0.1 to 1.0 mm.
  • the antibacterial metal is an ion-exchangeable metal having antibacterial properties such as silver, copper, and zinc. Among these, silver is the best, since ⁇ hardly occurs.
  • the synthetic resin film is a film having a thickness of about 10 to 100 microns made of polyester, polyethylene, polypropylene or the like.
  • the twisted yarn 2 is produced by twisting the antibacterial yarn 21 and the cellulosic fiber yarn 22 one by one as shown in FIG.
  • the cell mouth-based fiber yarn 22 is a yarn made of natural fibers such as cotton and hemp, and regenerated fiber-based artificial fibers such as rayon, acetate, and Cubra fibrous fiber (unspecified). Its thickness is 5th to 100th.
  • the cellulosic fiber yarns 3 and 4 described below are the same as the cellulosic fiber yarn 22 ( As shown in FIG. 3, the twisted yarn 2 is warped as a warp so as to be evenly spaced between the cellulosic fiber yarns 3.
  • the ratio of twisted yarn 2 to cellulosic fiber yarn 3 is about 1 to 10 twisted yarns 2 and about 40 to 100 cell-mouth-based fiber yarns 3 per inch of cloth width, and both are combined. About 110.
  • the warped warp yarns are woven by a weaving machine or the like into weft yarns with about 40 to 80 cellulosic fiber yarns 4 per inch width of the cloth.
  • the raw fabric 11 produced as a plain weave fabric 11 is not limited to plain weave fabric, but can also be made of twill weave, satin weave, or garami weave, depending on consumer preference. Woven fabrics, or knitted fabrics made by tricot, lashell, miller, braided, weft knitting, circular knitting, etc., and by the Kahlmeier method, etc. Manufactured as a knitted fabric.
  • the raw material cloth 11 is cut into a size such as a handkerchief, a furoshiki, and a towel, and the cut surface is sewn to produce a food wrap cloth 1.
  • the cellulosic fiber yarns 22 and the cellulosic fiber yarns 3 and 4 absorb moisture on the food surface. As it promotes drying, it suppresses the growth of microorganisms and produces an deodorant effect.
  • the antibacterial metal portion of the antibacterial thread 21 that is in direct contact with food exerts an antibacterial and sterilizing effect due to the potential difference of ions generated therefrom, thereby contributing to the maintenance of food quality.
  • the antibacterial thread 21 is soft, light, and hard to cut, so that it can be repeatedly used by washing or the like, and does not hurt the user even if cut.
  • the food wrap cloth 1 has high productivity because the antibacterial yarn 21 is used as the warp yarn.
  • Silver ions were vapor-deposited on a 30-micron polyester film (manufactured by Toyobo Co., Ltd.) by the ion vapor deposition method, and cut into strips of 0.5 mm width to produce antibacterial yarn.
  • this antibacterial yarn was wound around a 30th-count rayon yarn by winding it 300 times per 1 m to produce a twisted yarn.
  • the twisted yarn and 30th count yarn manufactured in (1) are warped at 5 mm intervals so that the number of yarns becomes 7 and 43 per 1 inch width of the fabric, and the warp yarns of the automatic loom. did.
  • the antibacterial activity test was carried out by the Osaka Food Sanitation Association Food Inspection Center, using the processing effect evaluation test method (microbial count method) of the Textile Sanitation Processing Council.
  • microbial count method microbial count method
  • a normal broth having a concentration of 120 was used as an experimental sample.
  • 0.4 g of gauze consisting of 100% cotton yarn of 100% was used as an experimental control. The following strains were used as test bacteria.
  • the food wrap fabric according to the present invention was formed by burning cellulosic fiber yarn and antimicrobial metal on the warp yarn, and antimicrobial yarn obtained by elongating and cutting the synthetic resin film. Since twisted yarn is used, when food is directly covered, it exerts an antibacterial and sterilizing effect on the area of the antibacterial metal in contact with the food and the surrounding area. In addition, since cellulosic fiber yarns are used for the warp and weft, it absorbs moisture on the food surface to promote drying, suppresses the growth of microorganisms, and exerts deodorant effects. Furthermore, twisted yarns, unlike ultrafine metal yarns, are lightweight, have strength and flexibility, and can be used as warp yarns to demonstrate their practicality as food wrap cloth. It became so.

Description

明 細 書
食品ラップ布 技術分野
この発明は、 魚、 肉、 野菜等の食品を直接包むことによ り、 これらの 食品の表面から滲み出る水分、 血液等を吸収して表面の乾燥状態を良好 にすると ともに、 表面に付着している細菌等の微生物を滅殺して食品の 衛生状態を高めることができる食品ラップ布に関する。 背景技術
紀元数世紀のころから、 銀製品に抗菌効果があることは知られており . 銀器などの食器と して使用されてきた。 このよ うなイオン交換可能な金 属の抗菌作用を利用して、 生活環境をよ り清潔にするため、 従来から、 様々な抗菌製品が発明されている。 このよ うな発明の例と して、 特開平 6 - 2 9 7 6 2 9号公報に記載の抗菌ク ロスが挙げられる。
この抗菌クロスは、 銅イオン等を含有する無機抗菌剤をゥレタン発泡 樹脂に混入させて吸水性を高めた内層体と、 銅などの極細金属糸を絡ま せた綿糸を横糸と し、 レーヨ ン糸を縦糸とする布状の外層体とから構成 されている。
しかし、 上記した抗菌クロスには次に掲げるよ うな問題点があった。 まず、 極細金属糸を使用しているため、 抗菌クロスが重くて硬く なる という問題点があった。 また、 極細金属糸が切断され易いので、 洗濯を して繰り返して使用することができず、 切断された金属糸によ り 、 使用 者が怪我をしゃすいという問題点もあった。
上記極細金属糸は、 織物の縦糸と して組み込むと、 切れたり 、 縦糸の 整経と織りが難しく なつたり、 金属のもつ硬さによ り布地自体が硬く な る といった弊害が生じやすいので、 横糸と してしか使用できなかったも のである。 しかしながら、 横糸と して使用した場合でも、 高速製織に耐 えられないため生産性が低く 、 表面が極細金属糸で覆われてしま うので. セルロース系繊維糸がもつ吸水性が犠牲になり、 防臭性が損なわれると レ、う問題点もあつた。
さらに、 抗菌性ク ロ スが抗菌効果を発揮するためには、 一定時間抗菌 クロスを対象物に接触し続ける必要があるにもかかわらず、 上記した公 報においては、 抗菌ク ロスで食品を包むための使用について何ら考慮さ れていない。 かかる抗菌ク ロスを使用すれば、 瞬時に効果が現れるよ う な主張がなされているが、 抗菌効果を得たい部位に一定時間抗菌ク 口ス を接触し続けなければ効果が得られないことは試験デ一タ よ り 明 らか である し、 抗菌ク 口スが接触した部位よ り拭い取った水分若しく は埃な どに抗菌効果を得ても何ら意義がなく 、 意味を持たなかったものである c そこで、 この発明は、 抗菌 ·滅菌効果を充分に発揮する と ともに、 抗 菌ク ロス と して、 軽く て柔らかく 、 繰り返し使用が可能な実用性をも発 揮しう る食品ラ ップ布を提供することを課題とする。 発明の開示
この発明にかかる食品ラップ布は、 セルロース系繊維糸と、 抗菌性金 属を合成樹脂フ イルムに蒸着して細長く切断して形成した抗菌糸をセ ルロース系繊維糸と撚つて形成した撚糸とを組合わせて縦糸と し、 セル ロース系繊維糸を横糸と してなる布地を素材と して構成されている。 図面の簡単な説明 第 1 図は、 この発明にかかる食品ラ ップ布の一実施例を示す外観斜視 図である。 また、 第 2図は、 前記食品ラップ布の材料である撚糸の構成 を示した図である。 さ らに、 第 3図は、 縦糸の構成を示した図であり、 第 4図は当該縦糸に横糸を織り込む様子を示す模式図であり、 第 5図は. 織り込んで製造された原料布地の外観斜視図である。 なお、 第 6図は、 他の実施例を示す外観斜視図である。 発明を実施するための最良の形態
以下、 図面に基づいてこの発明の実施の形態を説明する。
第 1図は、 この発明にかかる食品ラップ布 1 の外観を示す図であり、 食品ラ ップ布 1 は、 その縦糸に抗菌糸 2 1 とセルロース系繊維糸 2 2 と を撚つた撚糸 2を含んでいることを特徴とする。
抗菌糸 2 1 は、 合成樹脂フィルムに抗菌性金属をイオン蒸着法などに よ り蒸着し、 幅 0 . 1 〜 1 . 0 ミ リ に切断して製造されたものである。 ここで、 抗菌性金属とは、 銀、 銅、 亜鉛等のイオン交換可能な抗菌性を 有する金属である。 この中でも、 鲭が発生しにくいので、 銀の使用が最 適である。 また、 前記合成樹脂フィルムとは、 ポリエステル、 ポリェチ レン、 ポリプロ ピレン等から作られた厚さ約 1 0〜 1 0 0 ミク ロンのフ イルムである。
撚糸 2は、 この抗菌糸 2 1 とセルロース系繊維糸 2 2 とを、 第 2図に 示すよ う に 1本対 1本づっ撚つて製造される。 ここで、 セル口一ス系繊 維糸 2 2は、 綿、 麻等の天然繊維や、 レーヨン、 アセテー ト、 キュブラ 繊維素繊維 (指定外) 等の再生繊維系人造繊維からなる糸であり 、 その 太さが 5番手から 1 0 0番手のものである。 なお、 後述するセルロース 系繊維糸 3及び 4は、 このセルロース系繊維糸 2 2 と同様のものである ( この撚糸 2は、 第 3図に示すよ うに、 セルロース系繊維糸 3 の間に等 間隔になるよ うに、 縦糸と して整経される。 撚糸 2 とセルロース系繊維 糸 3の比率は、 布の幅 1インチあたり、 撚糸 2は 1 〜 1 0本、 セル口一 ス系繊維糸 3は 4 0〜 1 0 0本程度であり、 両方合わせて 1 1 0本程度 である。
整経された縦糸は、 第 4図に示すように、 自動織機等によ り横糸と し てセルロース系繊維糸 4 を布の幅 1 イ ンチあたり約 4 0 〜 8 0本づっ 織り込まれ、 第 5図に示すよ うな平織の原料布地 1 1 と して製造される c 原料布地 1 1 は、 平織の織物以外にも、 消費者の好みに応じて、 綾織、 朱子織、 搦み織によ り製造された織物、 または、 ト リ コ ッ ト、 ラ ッシェ ル、 ミラ -—ズ、 横編、 丸編等によ り製造された編物、 さ らには、 カー ルマイヤー法等により製造された編織物と して製造される。
この原料布地 1 1 を、 ハンカチ、 風呂敷、 タオルのよ うなサイズに裁 断し、 その裁断面を縫製することによ り、 食品ラ ップ布 1 と して製造さ れる。
このよ う にして製造された食品ラ ップ布 1 で食品を直接覆こ と によ り、 セルロース系繊維糸 2 2 、 セルロース系繊維糸 3及び 4の部分が、 食品表面の水分を吸収して乾燥を促すので、 微生物の生育を抑制して防 臭効果が生じる。 また、 食品と直接接している抗菌糸 2 1 の抗菌性金属 の部分が、 そこから発せられるイオンの電位差によって抗菌 ·滅菌効果 を発揮するので、 食品の品質維持に貢献することができる。 また、 抗菌 糸 2 1 は、 微細金属糸とは違って、 柔らかく 、 軽く て、 切れ難いため、 洗濯等によ り繰り返し利用でき、 も し切れたと しても利用者を傷つける ことはない。 また、 食品ラップ布 1 は、 抗菌糸 2 1 を縦糸と と して使用 しているため、 高い生産性を備えている。 実施例
( 1 ) 抗菌糸及び撚糸の製造
厚さ 3 0 ミ ク ロ ンのポリエステルフィルム (東洋紡績株式会社製) に 銀イオンをイオン蒸着法によ り蒸着し、 0. 5 ミ リ幅に細長く切断して 抗菌糸を製造した。 また、 この抗菌糸を 3 0番手レーヨ ン糸に 1 mあた り 3 0 0回巻き付けて燃り、 撚糸を製造した。
( 2 ) 食品ラ ップ布の製造
( 1 ) で製造した撚糸と 3 0番手レ一ョン糸を、 それぞれ布の幅 1 ィ ンチあたり 7本と 4 3本となるよ うに、 5 mm間隔で整経して自動織機 の縦糸と した。
2 0番手の繊維素繊維 (指定外) の糸 (都築紡績株式会社製、 商品名 テンセル (登録商標)) を、 布の幅 1 インチあたり 5 0本となるよ うに、 自動織機により横糸と して織り込ませ、 織物を製造した。
( 3 ) 抗菌力試験
抗菌力試験は、 繊維製品衛生加工協議会の加工効果評価試験方法 (菌 数測定法) を準用して、 社団法人大阪食品衛生協会食品検査センターに よ り行われた。 ただし、 この出願にかかる食品ラップ布の実験試料と し て、 ( 2 ) で製造した織物から切り出した 0. 4 g (約 9 c m2 ) の 抗菌クロ スを使用し、 試験菌液の最終希釈には 1 2 0濃度の普通ブイ ョンを使用した。 また、 実験対照と して 4 0番手の綿糸 1 0 0 %からな るガーゼ 0. 4 gを使用した。 なお、 供試菌と して以下の菌株を使用し た。
供試菌株 : E s c h e r i c h i a c o l i O 1 5 7 : H 7
(大腸菌 O 1 5 7、 大阪府立公衆衛生研究所分与株) 上記評価試験法に基づいて計数された接種直後及び 3 5 °C、 1 8時間 培養後の残存菌数を表 1 に示す。
【表 1】
Figure imgf000008_0001
表 1 からも明らかなように、 同数の供試菌を接種し、 3 5 °Cで 1 8時 間培養した後の残存菌数を比較する と、 抗菌クロスの残存菌数は、 実験 対照である綿 1 0 0 %ガーゼの残存菌数の約 1 0 5 分の 1 であり、 充 分な抗菌効果が認められた。 産業上の利用可能性
上記の説明から明らかなよ うに、 この発明にかかる食品ラップ布は、 縦糸にセルロース系繊維糸と抗菌性金属を合成樹脂フ ィルムに蒸着し 細長く 切断してなる抗菌糸と を燃って形成した撚糸を使用 しているの で、 食品を直接覆った場合には、 食品と接している抗菌性金属の部位及 びその周辺部において、 抗菌 ·滅菌効果を発揮する。 また、 縦糸と横糸 にセル口ース系繊維糸を使用しているので、 食品表面の水分を吸収して 乾燥を促し、 微生物の生育を抑制して防臭効果を発揮する。 さらに、 撚 糸は、 極細金属糸とは異なり、 軽量かつ、 強度と柔軟性を備えているの で、 これらを縦糸に使用することによ り、 食品ラップ布と しての実用性 が発揮できるよ うになった。

Claims

請 求 の 範 囲
1 . セルロース系繊維糸と、 抗菌性金属を合成樹脂フィルムに蒸着して 細長く切断して形成した抗菌糸をセルロース系繊維糸と撚つて形成し た撚糸とを組合わせて縦糸と し、
セル口ース系繊維糸を横糸と してなる布地を素材と して構成された 食品ラップ布。
PCT/JP1998/003731 1997-08-21 1998-08-21 Tissu servant a envelopper des aliments WO1999010577A1 (fr)

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DE1998611632 DE69811632T2 (de) 1997-08-21 1998-08-21 Verpackungsgewebe für lebensmittel
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DE69811632T2 (de) 2003-12-18
JPH11124753A (ja) 1999-05-11
EP0949368B1 (en) 2003-02-26
DE69811632D1 (de) 2003-04-03
HK1019432A1 (en) 2000-02-11
EP0949368A4 (en) 2002-01-02
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EP0949368A1 (en) 1999-10-13

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