JP3748034B2 - Sanitary shorts - Google Patents

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Publication number
JP3748034B2
JP3748034B2 JP2000182853A JP2000182853A JP3748034B2 JP 3748034 B2 JP3748034 B2 JP 3748034B2 JP 2000182853 A JP2000182853 A JP 2000182853A JP 2000182853 A JP2000182853 A JP 2000182853A JP 3748034 B2 JP3748034 B2 JP 3748034B2
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fiber
fabric
stretchable
knitted
sanitary
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JP2002000659A (en
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充弘 和田
文美 菅
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Uni Charm Corp
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Uni Charm Corp
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Priority to JP2000182853A priority Critical patent/JP3748034B2/en
Priority to KR1020010034260A priority patent/KR100776225B1/en
Priority to CNB011371048A priority patent/CN1222266C/en
Priority to TW090210310U priority patent/TW498753U/en
Publication of JP2002000659A publication Critical patent/JP2002000659A/en
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    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41B—SHIRTS; UNDERWEAR; BABY LINEN; HANDKERCHIEFS
    • A41B9/00—Undergarments
    • A41B9/04—Knickers for ladies, with or without inserted crotch or seat parts
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41B—SHIRTS; UNDERWEAR; BABY LINEN; HANDKERCHIEFS
    • A41B9/00—Undergarments
    • A41B9/12—Protective undergarments
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/56—Supporting or fastening means
    • A61F13/66—Garments, holders or supports not integral with absorbent pads
    • A61F13/68—Garments, holders or supports not integral with absorbent pads abdominal enclosing type
    • A61F13/72—Garments, holders or supports not integral with absorbent pads abdominal enclosing type with endless waist encircling band, e.g. panty type
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/58—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with nitrogen or compounds thereof, e.g. with nitrides
    • D06M11/63—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with nitrogen or compounds thereof, e.g. with nitrides with hydroxylamine or hydrazine
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41B—SHIRTS; UNDERWEAR; BABY LINEN; HANDKERCHIEFS
    • A41B2400/00—Functions or special features of shirts, underwear, baby linen or handkerchiefs not provided for in other groups of this subclass
    • A41B2400/22—Breathability, i.e. being vapour permeable and waterproof
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41B—SHIRTS; UNDERWEAR; BABY LINEN; HANDKERCHIEFS
    • A41B2400/00—Functions or special features of shirts, underwear, baby linen or handkerchiefs not provided for in other groups of this subclass
    • A41B2400/36—Deodorising or perfuming
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41B—SHIRTS; UNDERWEAR; BABY LINEN; HANDKERCHIEFS
    • A41B2500/00—Materials for shirts, underwear, baby linen or handkerchiefs not provided for in other groups of this subclass
    • A41B2500/20—Woven
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/16—Synthetic fibres, other than mineral fibres
    • D06M2101/18—Synthetic fibres consisting of macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M2101/26—Polymers or copolymers of unsaturated carboxylic acids or derivatives thereof
    • D06M2101/28—Acrylonitrile; Methacrylonitrile
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2501/00—Wearing apparel
    • D10B2501/02—Underwear

Description

【０００１】
【発明の属する技術分野】
本発明は、ｐＨ調整により脱臭機能を発揮する繊維が編み込まれた生地で形成された生理用ショーツに関する。
【０００２】
【従来の技術及び発明が解決しようとする課題】
従来の生理用ショーツは、ナイロンなどを主体とする通気性素材で形成され、生理用ナプキンの装着部である股下部の通気性を確保すると共に、活性炭等に代表される物理吸着性の物質をショーツに含有させることで、防臭対策がなされていた。
【０００３】
しかしながら物理吸着によると、特定の物質しか吸着されず、例えばアンモニア等の塩基性ガス及び低級脂肪酸等の酸性ガスの双方の刺激臭を完全に吸着することができなかった。
【０００４】
また物理吸着では、吸着力に限界があるため、生理用ショーツを長時間使用する場合には、効果的な防臭効果を得ることができなかった。
【０００５】
本発明は上記問題を解決するためのものであり、特にショーツを形成する生地にｐＨ調整による防臭機能が付与された繊維を用いることで、防臭効果を高めることが可能な生理用ショーツを提供することを目的としている。
【０００６】
【課題を解決するための手段】
本発明は、前身頃と、後身頃と、股下部とが伸縮性生地で形成されて、前記前身頃と前記後身頃の上縁部に形成される胴回り部および一対の脚開口部とを有し、前記股下部が生理用ナプキンの装着部とされている生理用ショーツにおいて、
前記伸縮性生地は、伸縮性繊維と、消臭機能を発揮する繊維とを有し各繊維が編まれた織布であり、前記消臭機能を発揮する繊維が、前記伸縮性生地の肌側にのみ現れ、あるいは外側よりも肌側に多く現れるように、各繊維が編み込まれていることを特徴とするものである。
【０００７】
例えば、前記消臭機能を発揮する繊維は、少なくとも一部が、ヒドラジン処理による架橋結合とカルボキシル基とを有して構成された架橋型アクリレートであり、ｐＨが４．０〜７．０の範囲内に調整されたものである。
【０００８】
本発明によれば、アンモニアガス等の塩基性ガスが発生した場合、前記架橋型アクリレートのカルボキシル基との間で中和によるｐＨ調整が行われる。よって前記塩基性ガスは、前記架橋型アクリレート内に閉じ込められ、このガスがショーツの外部に漏れ出すことが無くなる。
【０００９】
また低級脂肪酸等の酸性ガスが発生した場合には、ヒドラジン架橋の元素Ｎとの間で中和によるｐＨ調整が行われる。このため前記酸性ガスは、前記架橋型アクリレート内に閉じ込められ、このガスがショーツの外部に漏れ出すことが無くなる。
【００１０】
また本発明では、前記架橋型アクリレート繊維のｐＨが好ましくは４．０〜７．０の範囲内に調整され、弱酸性である。一方、人の肌が弱酸性である。塩基性ガスや酸性ガスが発生した場合、これらのガスと架橋型アクリレートとの間で中和によるＰＨ調整が行われるので、前記架橋型アクリレートは、弱酸性に保たれ、前記架橋型アクリレートと肌とが直接接する場合でも肌の健康を損ねることがない。
【００１１】
また、例えば、前記伸縮性生地は、前記伸縮性繊維あるいは伸縮性繊維と非伸縮性繊維により、肌側でループが形成され、ループ間を繋ぐ斜めに延びる繊維が外側に現れるように編まれており、前記消臭機能を発揮する繊維が、前記ループに編み込まれているものであり、これはトリコットハーフ編みとして実現することができる。
【００１２】
【発明の実施の形態】
図１は本発明の実施の形態の生理用ショーツを示す斜視図であり、図２は前記ショーツの内側面を示す展開図、図３は生理用ショーツを形成する伸縮性生地の編み構造の一例を外面側から示す拡大説明図である。
【００１３】
図２では、前身頃１１、股下部１３、後身頃１２が連続するＹ方向を縦方向とし、これと直交するＸ方向を横方向とする。この生理用のショーツは、前身頃１１、後身頃１２、股下部１３が伸縮性生地２０で形成されている。伸縮性生地２０は、前記前身頃１１の側縁１１ａと前記後身頃１２の側縁１２ａとが接合され、前記前身頃１１の側縁１１ｂと前記後身頃１２の側縁１２ｂとが接合されることで腰回りに連続する。また上部には胴回り部１５が開口し、股下部１３の両側に脚開口部１６，１６が形成されている。
【００１４】
前記股下部１３の内側には、伸縮性で且つ通気性の防水布（または撥水性の布）１８が重ねられてその縁部が伸縮性生地２０に縫合されている。図１に示す生理用ナプキン２５は前記股下部１３において、前記防水布１８の内側に装着される。
【００１５】
前記伸縮性生地２０は、肌触りが良く且つ通気性を有する素材で形成されている。図３は前記伸縮性生地２０を外側から見た拡大図である。この伸縮性生地２０は、弾性伸縮性繊維であるポリウレタン繊維で形成されたポリウレタン繊維糸３１と、肌触りの良い非伸縮性繊維であるナイロン繊維で形成されたナイロン繊維糸３２とで、トリコットハーフ編みの織布が形成されている。
【００１６】
この織布は、図３の紙面奥側で、ポリウレタン繊維糸３１とナイロン繊維糸３２が一緒になってループ３３を形成している。図３においてに上下方向に延びるＯ−Ｏを基準線としたときに、前記基準線Ｏ−Ｏに位置するループ３３の下側基端からポリウレタン繊維糸３１が左肩上がり方向および左肩下がり方向へ長く斜めに延びている。このポリウレタン繊維糸３１は図３の紙面の最も手前側に現れている。また、前記基準線Ｏ−Ｏに位置するループ３３の下側基端からナイロン繊維糸３２が右肩上がり方向および右肩下がり方向へ短く斜めに延びている。このナイロン繊維糸３２は、前記ポリウレタン繊維糸３１の紙面奥側を通過している。そして、前記ポリウレタン繊維糸３１は基準線Ｏ−Ｏよりも左側へ延びて他のナイロン繊維糸３２とループ３３を形成し、前記ナイロン繊維糸３２は、基準線Ｏ−Ｏから右側へ延びて他の前記ポリウレタン繊維糸３１とループ３３を形成している。よって、全てのループ３３は紙面奥側に位置している。
【００１７】
この生地は、前記ポリウレタン繊維糸３１が伸び、且つループ３３が収束することで伸びることができ、引っ張り力を除去するとポリウレタン繊維糸３１の弾性復元力により元の状態に復元する。
【００１８】
この伸縮性生地２０は、図３の左右方向への伸び量が、図３の上下方向への伸び量よりも大きくなる。図３に示す伸縮性生地２０は、左右方向が図２に示す生理用ショーツの縦方向（Ｙ方向）へ向けられた状態、さらにループ３３が肌側に現れるようにして縫製される。
【００１９】
そして、図３に示す前記伸縮生地２０の紙面奥側（ショーツの肌側）に現れるループ３３に、消臭機能を発揮する繊維糸３５が編み込まれている。したがって、前記消臭機能を発揮する繊維糸３５は、生理用ショーツの肌側にのみ現われ、外側にはほとんど現れない構造となっている。なお、生地の編み構造は図３に示すトリコットハーフ編みに限られるものではなく他の編み構造であってもよい。そして、編み構造によっては、前記消臭機能を発揮する繊維糸３５が外側に現れることも有り得る。ただし、本発明では、前記繊維糸３５が生地の肌側において外側よりも多く現れたものとすることが好ましい。
【００２０】
なお、図３では、ポリウレタン繊維糸３１とナイロン繊維糸３２とが編み込まれた構造であるが、例えばポリウレタン繊維の表面にナイロンが被覆された複合繊維により形成された糸で前記伸縮性生地２０が形成され、この生地２０の肌側に消臭機能を発揮する繊維糸３５が編み込まれていてもよい。
【００２１】
前記消臭機能を発揮する繊維糸３５は、架橋型アクリレートの単繊維と、アクリル単繊維とが混紡された糸であり、１５０〜２５０ｄｔｅｘである。
【００２２】
前記架橋型アクリレートは、アクリロニトリル（ＣＨ2＝ＣＨ−ＣＮ）とモノマーとしてアクリル酸メチルとの共重合体を主体としている。前記モノマーの他の例としては、ハロゲン化ビニル、ハロゲン化ビニリデン、ｐ−スチレンスルホン酸等のスルホン酸含有モノマーやその塩、イタコン酸等のカルボン酸含有モノマーやその塩、アクリルアミド、スチレン、酢酸ビニル等を挙げることができる。
【００２３】
本発明の架橋型アクリレートは、さらに前記アクリレートに、ヒドラジン処理が施され、ニトリル基（−ＣＮ）が架橋結合して架橋型とされている。ヒドラジン（ＮＨ2−ＮＨ2）としては、水加ヒドラジン、硫酸ヒドラジン等を例示できる。
【００２４】
さらに加水分解処理によって、残存するニトリル基の一部がカルボキシル基（−ＣＯＯＨ）に、残部のニトリル基がアミド基（−ＣＯＮＨ2）に変換される。この変換処理は、アルカリ金属水酸化物、アンモニア等の塩基水溶液や強酸等の含受によって行える。なお本発明の架橋型アクリレートは、ＰＨが４．０〜７．０に調整されて弱酸性となっている。
【００２５】
【化１】

Figure 0003748034
【００２６】
化１は、アクリロニトリルと他のモノマーとの重合によって形成された主鎖を有しており、これら主鎖どうしが、橋かけＡによって架橋結合されている。橋かけＡは、ニトリル基がヒドラジン処理によって架橋結合された部分である。
【００２７】
生理時の月経などによる排出液や身体内から出る汗などの分泌液が、空気に曝されると酸化作用などにより、低級脂肪酸などの酸性ガスやアンモニアガスなどの塩基性ガスが発生する。
【００２８】
本発明では、このような不快な刺激臭を有するガスが発生したときに、上記架橋型アクリレートのｐＨ調整による脱臭作用によって、前記ガスがショーツの外部に漏れ出すことを適切に抑制するというものである。
【００２９】
すなわち、アンモニアガスなどの塩基性ガスは、化１に示すカルボキシル基との間で中和によるｐＨ調整が行なわれる。上記したように、架橋型アクリレートはｐＨが４．０〜７．０の弱酸性に調整されたものであるが、ｐＨ調整が行なわれることで、前記架橋型アクリレートは弱酸性に適切に保たれる。
【００３０】
しかも本発明では、前記塩基性ガスは、カルボキシル基との中和反応により、架橋型アクリレート内に閉じ込まれるので、前記ガスが、ショーツの外部に漏れ出すことを適切に抑制でき、消臭効果を高めることが可能である。
【００３１】
また低級脂肪酸などの酸性ガスは、橋かけＡの元素Ｎとの間で中和によるｐＨ調整が行なわれる。このｐＨ調整により、前記架橋型アクリレートは弱酸性に保たれる。
【００３２】
しかも前記酸性ガスと、ヒドラジン架橋のＮとの間での中和反応によって、前記ガスは、架橋型アクリレート内に閉じ込められて、ショーツ外部に漏れ出すことを適切に抑制でき、消臭効果を高めることが可能である。
【００３３】
このように本発明では、塩基性ガスや酸性ガスが発生すると、前記架橋型アクリレートにより、中和反応によるｐＨ調整がなされて弱酸性に保ちながら、前記塩基性ガスや酸性ガスは、前記架橋型アクリレート内に封じ込まれ、効果的な防臭効果を発揮することが可能になっている。
【００３４】
また、前記繊維糸３５を形成するアクリル繊維の樹脂は、アクリロニトリルの付加重合体である。
【００３５】
【発明の効果】
以上に説明したように本発明の生理用ショーツでは、その内側に位置する消臭機能を有する繊維により、消臭・防臭効果を発揮できる。しかも前記消臭機能を発揮する繊維は、主にショーツの肌側に位置しているので、高い消臭効果を期待できる。
【図面の簡単な説明】
【図１】本発明の実施の形態の生理用ショーツを示す斜視図、
【図２】図１の生理用ショーツの展開図、
【図３】生理用ショーツを形成する伸縮性生地を外側から示す拡大図、
【符号の説明】
１１ 前身頃
１２ 後身頃
１３ 股下部
１５ 胴回り部
１６ 脚開口部
２０ 伸縮性生地
３１ ポリウレタン繊維糸
３２ ナイロン繊維糸
３３ ループ
３５ 消臭機能を有する繊維糸[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a sanitary short formed from a fabric woven with fibers that exhibit a deodorizing function by adjusting pH.
[0002]
[Prior art and problems to be solved by the invention]
Conventional sanitary shorts are made of a breathable material mainly made of nylon, etc., and ensure the breathability of the crotch where the sanitary napkin is attached. Deodorizing measures have been taken by adding it to shorts.
[0003]
However, according to physical adsorption, only a specific substance was adsorbed, and for example, it was impossible to completely adsorb the irritating odor of both basic gas such as ammonia and acidic gas such as lower fatty acid.
[0004]
Moreover, in physical adsorption, since there is a limit to the adsorption power, an effective deodorizing effect could not be obtained when using sanitary shorts for a long time.
[0005]
The present invention is for solving the above-mentioned problems, and particularly provides a sanitary short capable of enhancing the deodorizing effect by using a fiber having a deodorizing function by adjusting pH in the fabric forming the shorts. The purpose is that.
[0006]
[Means for Solving the Problems]
The present invention includes a waist part and a pair of leg openings formed at the upper edge of the front body and the back body, wherein the front body, the back body, and the crotch are formed of a stretchable fabric. In the sanitary shorts in which the crotch part is a mounting part of a sanitary napkin,
The stretchable fabric is a woven fabric having stretchable fibers and fibers that exhibit a deodorizing function, and each fiber is knitted, and the fibers that exhibit the deodorizing function are on the skin side of the stretchable fabric Each fiber is knitted so as to appear only on the skin or more on the skin side than on the outside.
[0007]
For example, the fiber exhibiting the deodorizing function is a cross-linked acrylate that is at least partially configured to have a cross-linked bond by hydrazine treatment and a carboxyl group, and the pH is in the range of 4.0 to 7.0. It has been adjusted in.
[0008]
According to the present invention, when a basic gas such as ammonia gas is generated, the pH is adjusted by neutralization with the carboxyl group of the crosslinked acrylate. Therefore, the basic gas is confined in the cross-linked acrylate, and this gas does not leak out of the shorts.
[0009]
Further, when an acidic gas such as a lower fatty acid is generated, the pH is adjusted by neutralization with the element N of the hydrazine bridge. For this reason, the acidic gas is confined in the cross-linked acrylate, and this gas does not leak out of the shorts.
[0010]
In the present invention, the pH of the cross-linked acrylate fiber is preferably adjusted within the range of 4.0 to 7.0 and is weakly acidic. On the other hand, human skin is weakly acidic. When basic gas or acid gas is generated, the pH is adjusted by neutralization between these gases and the cross-linked acrylate, so that the cross-linked acrylate is kept weakly acidic and the cross-linked acrylate and skin Even if they are in direct contact with each other, there is no loss of skin health.
[0011]
In addition, for example, the stretch fabric is knitted so that a loop is formed on the skin side and fibers extending obliquely connecting the loops appear on the outside by the stretch fiber or the stretch fiber and the non-stretch fiber. The fibers exhibiting the deodorizing function are knitted into the loop, and this can be realized as a tricot half knitting.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is a perspective view showing a sanitary short according to an embodiment of the present invention, FIG. 2 is a developed view showing an inner surface of the short, and FIG. 3 is an example of a knitted structure of an elastic fabric forming the sanitary short. FIG.
[0013]
In FIG. 2, the Y direction in which the front body 11, the crotch 13 and the back body 12 are continuous is defined as the vertical direction, and the X direction orthogonal thereto is defined as the horizontal direction. In this sanitary short, a front body 11, a back body 12, and a crotch 13 are formed of an elastic fabric 20. In the stretchable fabric 20, the side edge 11a of the front body 11 and the side edge 12a of the back body 12 are joined, and the side edge 11b of the front body 11 and the side edge 12b of the back body 12 are joined. It continues around the waist. Further, a waistline portion 15 is opened at the upper portion, and leg openings 16 and 16 are formed on both sides of the crotch portion 13.
[0014]
A stretchable and breathable waterproof cloth (or water repellent cloth) 18 is superimposed on the inner side of the crotch portion 13, and an edge thereof is stitched to the stretchable fabric 20. A sanitary napkin 25 shown in FIG. 1 is attached to the inside of the waterproof cloth 18 at the crotch 13.
[0015]
The stretchable fabric 20 is made of a material that has good touch and breathability. FIG. 3 is an enlarged view of the stretchable fabric 20 as viewed from the outside. This stretch fabric 20 is a tricot half knitting made of a polyurethane fiber yarn 31 formed of polyurethane fiber that is an elastic stretch fiber and a nylon fiber yarn 32 formed of nylon fiber that is a non-stretchable fiber that is soft to the touch. The woven fabric is formed.
[0016]
In this woven fabric, a polyurethane fiber yarn 31 and a nylon fiber yarn 32 are combined to form a loop 33 on the back side in FIG. In FIG. 3, when OO extending in the vertical direction is taken as a reference line, the polyurethane fiber yarn 31 extends from the lower base end of the loop 33 located on the reference line OO in the left shoulder rising direction and the left shoulder falling direction. It extends diagonally. This polyurethane fiber yarn 31 appears on the most front side of the paper surface of FIG. Further, the nylon fiber yarn 32 extends from the lower base end of the loop 33 located at the reference line OO in a short and oblique manner in the upward direction of the right shoulder and the downward direction of the right shoulder. The nylon fiber yarn 32 passes through the back side of the polyurethane fiber yarn 31 in the drawing. The polyurethane fiber yarn 31 extends to the left side of the reference line OO to form another nylon fiber yarn 32 and a loop 33, and the nylon fiber yarn 32 extends to the right side from the reference line OO. The polyurethane fiber yarn 31 and the loop 33 are formed. Therefore, all the loops 33 are located on the back side of the page.
[0017]
This fabric can be stretched when the polyurethane fiber yarn 31 is stretched and the loop 33 is converged. When the tensile force is removed, the fabric is restored to its original state by the elastic restoring force of the polyurethane fiber yarn 31.
[0018]
The stretchable fabric 20 has an extension amount in the left-right direction in FIG. 3 larger than an extension amount in the up-down direction in FIG. The stretchable fabric 20 shown in FIG. 3 is sewn so that the left-right direction is oriented in the longitudinal direction (Y direction) of the sanitary shorts shown in FIG. 2, and the loop 33 appears on the skin side.
[0019]
And the fiber yarn 35 which exhibits a deodorizing function is knitted in the loop 33 which appears in the paper surface back side (shorts skin side) of the said elastic fabric 20 shown in FIG. Therefore, the fiber yarn 35 that exhibits the deodorizing function appears only on the skin side of the sanitary shorts and hardly appears on the outside. The knitting structure of the fabric is not limited to the tricot half knitting shown in FIG. 3, and may be other knitting structures. Depending on the knitting structure, the fiber yarn 35 exhibiting the deodorizing function may appear on the outside. However, in the present invention, it is preferable that the fiber yarn 35 appears more on the skin side of the fabric than on the outside.
[0020]
In FIG. 3, the polyurethane fiber yarn 31 and the nylon fiber yarn 32 are knitted. However, for example, the stretchable fabric 20 is formed of a composite fiber in which nylon is coated on the surface of the polyurethane fiber. The fiber yarn 35 which is formed and exhibits the deodorizing function may be knitted on the skin side of the fabric 20.
[0021]
The fiber yarn 35 exhibiting the deodorizing function is a yarn in which a single fiber of a cross-linkable acrylate and an acrylic single fiber are blended, and is 150 to 250 dtex.
[0022]
The cross-linked acrylate is mainly composed of a copolymer of acrylonitrile (CH 2 ═CH—CN) and methyl acrylate as a monomer. Other examples of the monomer include sulfonic acid-containing monomers such as vinyl halide, vinylidene halide, and p-styrene sulfonic acid, and salts thereof, carboxylic acid-containing monomers such as itaconic acid and salts thereof, acrylamide, styrene, and vinyl acetate. Etc.
[0023]
The cross-linked acrylate of the present invention is further made into a cross-linked type by subjecting the acrylate to hydrazine treatment and cross-linking nitrile groups (—CN). Examples of hydrazine (NH 2 —NH 2 ) include hydrated hydrazine and hydrazine sulfate.
[0024]
Further, by hydrolysis, a part of the remaining nitrile group is converted into a carboxyl group (—COOH), and the remaining nitrile group is converted into an amide group (—CONH 2 ). This conversion treatment can be performed by including an aqueous base solution such as an alkali metal hydroxide or ammonia, or a strong acid. The cross-linked acrylate of the present invention is weakly acidic with a pH adjusted to 4.0 to 7.0.
[0025]
[Chemical 1]
Figure 0003748034
[0026]
Chemical formula 1 has a main chain formed by polymerization of acrylonitrile and another monomer, and these main chains are cross-linked by a bridge A. The bridge A is a portion in which a nitrile group is cross-linked by hydrazine treatment.
[0027]
When discharged fluids such as menstruation during menstruation and secretions such as sweat from the body are exposed to air, acidic gases such as lower fatty acids and basic gases such as ammonia gas are generated due to oxidation.
[0028]
In the present invention, when a gas having such an unpleasant pungent odor is generated, the gas is appropriately prevented from leaking out of the shorts by the deodorizing action by adjusting the pH of the crosslinked acrylate. is there.
[0029]
That is, pH adjustment by neutralization is performed between the basic gas such as ammonia gas and the carboxyl group shown in Chemical formula 1. As described above, the cross-linked acrylate is adjusted to be weakly acidic with a pH of 4.0 to 7.0. By adjusting the pH, the cross-linked acrylate is appropriately kept weakly acidic. It is.
[0030]
Moreover, in the present invention, the basic gas is confined in the cross-linked acrylate by a neutralization reaction with a carboxyl group, so that the gas can be appropriately suppressed from leaking out of the shorts, and has a deodorizing effect. It is possible to increase.
[0031]
In addition, acidic gas such as lower fatty acid is pH-adjusted by neutralization with the element N of the bridge A. By this pH adjustment, the cross-linked acrylate is kept weakly acidic.
[0032]
Moreover, the neutralization reaction between the acidic gas and N of the hydrazine bridge can appropriately suppress the gas from being trapped in the cross-linked acrylate and leaking out of the shorts, thereby enhancing the deodorizing effect. It is possible.
[0033]
As described above, in the present invention, when basic gas or acidic gas is generated, the basic gas or acidic gas is the cross-linked type acrylate while the pH is adjusted by a neutralization reaction and kept weakly acidic by the cross-linked acrylate. It is encapsulated in acrylate and can exhibit an effective deodorizing effect.
[0034]
The acrylic fiber resin forming the fiber yarn 35 is an addition polymer of acrylonitrile.
[0035]
【The invention's effect】
As described above, in the sanitary shorts of the present invention, the fiber having a deodorizing function located inside thereof can exert a deodorizing / deodorizing effect. And since the fiber which exhibits the said deodorizing function is mainly located in the skin side of shorts, the high deodorizing effect can be anticipated.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a sanitary short according to an embodiment of the present invention;
2 is a development view of the sanitary shorts of FIG. 1,
FIG. 3 is an enlarged view showing the stretchable fabric forming the sanitary shorts from the outside;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 11 Front body 12 Back body 13 Crotch part 15 Girth part 16 Leg opening part 20 Elastic cloth 31 Polyurethane fiber thread 32 Nylon fiber thread 33 Loop 35 Fiber thread which has a deodorizing function

Claims (4)

前身頃（１１）と、後身頃（１２）と、股下部（１３）とが伸縮性生地（２０）で形成されて、前記前身頃と前記後身頃の上縁部に形成される胴回り部（１５）および一対の脚開口部（１６）とを有し、前記股下部が生理用ナプキンの装着部とされている生理用ショーツにおいて、
前記伸縮性生地は、伸縮性繊維（３１）と、消臭機能を発揮する繊維（３５）とを有し各繊維が編まれた織布であり、前記消臭機能を発揮する繊維が、前記伸縮性生地の肌側にのみ現れ、あるいは外側よりも肌側に多く現れるように、各繊維が編み込まれていることを特徴とする生理用ショーツ。A waist part ( 11) , a back body (12), and a crotch part (13) are formed of a stretchable fabric (20) , and are formed at upper edges of the front body and the back body ( 15) and a pair of leg openings (16) , wherein the crotch part is a mounting part for a sanitary napkin,
The stretchable fabric is a woven fabric having stretchable fibers (31) and fibers (35) that exhibit a deodorizing function , and each fiber is knitted. A sanitary short characterized in that each fiber is knitted so as to appear only on the skin side of the elastic fabric or more on the skin side than the outside. 前記伸縮性生地は、前記伸縮性繊維（３１）と、前記消臭機能を発揮する繊維（３５）と、さらに非伸縮性繊維（３２）とで編まれた織布である請求項１記載の生理用ショーツ。The said elastic fabric is a woven fabric knitted with the said elastic fiber (31), the fiber (35) which exhibits the said deodorizing function, and also the non-elastic fiber (32). Sanitary shorts. 前記伸縮性生地（２０）は、前記伸縮性繊維（３１）あるいは伸縮性繊維と非伸縮性繊維（３２）により、肌側でループ（３３）が形成され、ループ間を繋ぐ斜めに延びる繊維が外側に現れるように編まれており、前記消臭機能を発揮する繊維（３５）が、前記ループに編み込まれている請求項１または２記載の生理用ショーツ。The stretchable fabric (20) has a loop (33) formed on the skin side by the stretchable fiber (31) or the stretchable fiber and the non-stretchable fiber (32) , and fibers extending obliquely connecting the loops. The sanitary short according to claim 1 or 2, wherein the fibers (35) knitted so as to appear on the outside and exhibiting the deodorizing function are knitted in the loop. 前記消臭機能を発揮する繊維（３５）は、少なくとも一部が、ヒドラジン処理による架橋結合とカルボキシル基とを有して構成された架橋型アクリレートであり、ｐＨが４．０〜７．０の範囲内に調整されたものである請求項１ないし３のいずれかに記載の生理用ショーツ。The fiber (35) exhibiting the deodorizing function is a cross-linked acrylate having at least a part thereof having a cross-linked bond by hydrazine treatment and a carboxyl group, and having a pH of 4.0 to 7.0. The sanitary short according to any one of claims 1 to 3, which is adjusted within a range.
JP2000182853A 2000-06-19 2000-06-19 Sanitary shorts Expired - Fee Related JP3748034B2 (en)

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JP2000182853A JP3748034B2 (en) 2000-06-19 2000-06-19 Sanitary shorts
KR1020010034260A KR100776225B1 (en) 2000-06-19 2001-06-18 Sanitary shorts
CNB011371048A CN1222266C (en) 2000-06-19 2001-06-19 Underpants used in menstrual period
TW090210310U TW498753U (en) 2000-06-19 2001-06-19 Sanitary pants for physiological use

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