JP2012161391A - Cooling tool for dressing - Google Patents

Cooling tool for dressing Download PDF

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JP2012161391A
JP2012161391A JP2011022408A JP2011022408A JP2012161391A JP 2012161391 A JP2012161391 A JP 2012161391A JP 2011022408 A JP2011022408 A JP 2011022408A JP 2011022408 A JP2011022408 A JP 2011022408A JP 2012161391 A JP2012161391 A JP 2012161391A
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water
resin particles
fabric
cooler
bag
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Shigeo Takahashi
茂雄 高橋
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PROTECH TIO JAPAN CO Ltd
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PROTECH TIO JAPAN CO Ltd
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Abstract

PROBLEM TO BE SOLVED: To solve the problem that a conventional COOLING tool for dressing made by filling highly water-absorbing resin particles into a bag part of a fabric generates a feeling of slime caused by leakage of a swollen gel after water absorption from the bag part and gives a sticky feeling when it is used, and this phenomenon is caused by the fact that when the fabric of the COOLING tool after water absorption is squeezed, small pieces generated by breaking partly the swollen gel, and small pieces of the swollen gel derived from the component of the fine particles of the highly water-absorbing resin particles leaks out from gaps of fabric fibers and gaps of seams related to forming the bag part.SOLUTION: As the highly water-absorbing resin particles, such a particle whose shape is spherical, and the range of the particle diameter of which is not less than 0.1 mm and not more than 1 mm, is used, and the bag part is made to be a specific double structure made of an inner fabric and an outer fabric.

Description

本発明は、身体の所要部を冷却するための装身用保冷具に関する。さらに詳しくは、所定形状かつ所定粒子径範囲の高吸水性樹脂粒子を含有してなる装身用保冷具に関する。   The present invention relates to a cooler for clothing for cooling a required part of the body. More specifically, the present invention relates to a cooler for clothing comprising high water-absorbing resin particles having a predetermined shape and a predetermined particle diameter range.

従来、ハイキング・スポーツ観戦・釣りなどの炎天下でのレジャーや、農作業・土木作業などの炎天下での労働に際して、頭・首などの身体の所要部を部分的に冷却することを目的とする保冷具が知られている。   Conventionally, a cold insulator designed to partially cool the necessary parts of the body, such as the head and neck, during leisure under hot weather such as hiking, watching sports and fishing, and working under hot weather such as farming and civil engineering work It has been known.

これらの保冷具として、ポリエチレングリコールやセルロース系の水溶性ポリマーを主成分とするゲル状物質を水不透性のプラスチック製フィルムよりなる包装袋に封入したもの(ゲル封入包装袋)を冷凍庫にて冷却し、上記冷凍後のゲル封入包装袋を布地に形成された袋部に収納して使用する装身用保冷具が知られている。   As these cold insulators, a gel-like substance mainly composed of polyethylene glycol or a cellulose-based water-soluble polymer is enclosed in a packaging bag made of a water-impermeable plastic film (gel-enclosed packaging bag) in a freezer. A cooler for clothing that cools and stores the frozen gel-enclosed packaging bag in a bag formed on a fabric is known.

しかし、上記の構成になる装身用保冷具は、冷凍したゲル状物質を構成する水の融解熱もしくはゲル状物質の顕熱のみしか身体の冷却に使われないため、冷却効果が十分でないかまたは冷却効果が持続しないという問題があった。   However, the cooler for the body having the above structure is not sufficient for cooling because only the melting heat of the water constituting the frozen gel substance or the sensible heat of the gel substance is used for cooling the body. Or there was a problem that the cooling effect was not sustained.

このような問題を解決するため、所定の布地に袋部を形成し、該袋部内に保水性ポリマーの粒子を収納してなる装身用保冷具が開示されている(特許文献1)。   In order to solve such a problem, a cooler for body decoration is disclosed (Patent Document 1) in which a bag portion is formed on a predetermined fabric, and water-retaining polymer particles are accommodated in the bag portion.

このほか、透水性のシートを長手方向に二つ折りしてなる帯状の本体と、その帯状の本体の中程を仕切りで仕切ってなる袋部と、この袋部内に収納された高吸水性ポリマーの粒子とからなる冷却用ネックバンドも開示されている(特許文献2)。   In addition, a band-shaped main body formed by folding a water-permeable sheet in half in the longitudinal direction, a bag portion formed by partitioning the middle of the band-shaped main body with a partition, and a superabsorbent polymer stored in the bag portion. A cooling neckband made of particles is also disclosed (Patent Document 2).

特許文献1および2の装身用保冷具は、上記袋部を水に浸して高吸水性樹脂に水を吸収させ、高吸水性樹脂をゲル状とした後、袋部を身体の所定部に固定することにより、高吸水性樹脂に含まれた水分が布地を浸透して気化する際の気化熱を利用して身体の所定部位を冷却しようとするものである。(前記高吸水性樹脂は、特許文献等では保水性ポリマー、高吸水性ポリマーと称せられることもある。以後、「高吸水性樹脂」の用語を統一して使用する。)   In the cooler for personal belongings of Patent Documents 1 and 2, the bag portion is immersed in water so that the superabsorbent resin absorbs water, and the superabsorbent resin is made into a gel. By fixing, it is intended to cool a predetermined part of the body using heat of vaporization when moisture contained in the superabsorbent resin permeates and vaporizes the fabric. (The above-mentioned highly water-absorbing resin is sometimes referred to as a water-retaining polymer or a highly water-absorbing polymer in patent documents and the like. Hereinafter, the term “super-water-absorbing resin” is used in unification.)

上記高吸水性樹脂としては多種の樹脂が知られているが、吸水性能の観点からポリアクリル酸塩系のものが主流とされている。
ポリアクリル酸塩系高吸水性樹脂は、アクリル酸やメタクリル酸などの水溶性単量体をアルカリ金属にて部分中和した単量体を少量の架橋剤の存在下にて重合して得られ、
一般に粉状の形態をとる。
上記のアルカリ金属としては工業的にはナトリウム、カリウムが用いられている。
前記架橋剤としてはエチレングリコール、プロピレングリコール、グリセリン等を挙げることが出来る。
Various resins are known as the highly water-absorbent resin, and polyacrylates are mainly used from the viewpoint of water absorption performance.
Polyacrylate highly water-absorbent resin is obtained by polymerizing a monomer obtained by partially neutralizing a water-soluble monomer such as acrylic acid or methacrylic acid with an alkali metal in the presence of a small amount of a crosslinking agent. ,
Generally takes powdery form.
Industrially, sodium or potassium is used as the alkali metal.
Examples of the crosslinking agent include ethylene glycol, propylene glycol, and glycerin.

上記ポリアクリル酸塩系の高吸水性樹脂の重合方法としては、1)前記の水溶性単量体の水溶液をそのまま溶液重合して得られるゲル状重合物を細分化し、次いで乾燥する水溶液重合方法と、2)前記の水溶性単量体の水溶液を、界面活性剤および/または高分子保護コロイドの存在下に疎水性溶媒中に懸濁させながら重合させる逆相懸濁重合方法が挙げられるが、工業的には水溶液重合方法が主流であるとされている。   As a polymerization method of the polyacrylate-based superabsorbent resin, 1) an aqueous solution polymerization method in which a gel polymer obtained by solution polymerization of an aqueous solution of the water-soluble monomer as it is is subdivided and then dried. And 2) a reverse phase suspension polymerization method in which an aqueous solution of the water-soluble monomer is polymerized while being suspended in a hydrophobic solvent in the presence of a surfactant and / or a polymer protective colloid. Industrially, the aqueous solution polymerization method is regarded as the mainstream.

上記の重合方法により得られる高吸水性樹脂はいずれも粒状の形態をとる。前記水溶液重合方法によって得られる高吸水性樹脂の粒子形状が不定形であるのに対し、逆相懸濁重合方法によって得られる高吸水性樹脂の粒子形状は球状であるとされる。   Any of the superabsorbent resins obtained by the above polymerization method takes a granular form. The particle shape of the highly water-absorbing resin obtained by the aqueous solution polymerization method is indefinite, whereas the particle shape of the highly water-absorbing resin obtained by the reverse phase suspension polymerization method is spherical.

特開平8−247593JP-A-8-247593 登録実用新案公報第3019831号Registered Utility Model Publication No. 3019831

特許文献1、2の装身用保冷具は、高吸水性樹脂の粒子に含まれる水分の気化熱を利用するため、長期にわたり保冷効果を有する利点はあるものの、当該保冷具を水に浸した後、保冷具をタオル等に包んで絞り、布地より水分を十分に搾り出すという操作が必要である。   Since the cooler for clothing of Patent Documents 1 and 2 uses the heat of vaporization of water contained in the particles of the superabsorbent resin, there is an advantage of having a cool effect over a long period of time, but the cooler is immersed in water. Then, it is necessary to wrap and squeeze the cold insulation tool in a towel or the like and squeeze out moisture sufficiently from the fabric.

しかしながら、特許文献2段落[0013]にて「表面に生じているヌメリを完全に洗い落とし、」と記載されているように、特許文献2の発明になる装身用保冷具は、前記袋部を水に浸して高吸水性樹脂に水を吸収させると、高吸水性樹脂のゲル状膨潤物質(以下、「膨潤ゲル」の用語を用いる。)の一部が袋部より外部に漏れてしまい、袋部にヌメリを付着させ、使用時にべとつき感を生じさせるという問題があった。更に一度このようなヌメリを生じさせるとヌメリが糊状となって袋部を充満するため吸水面積が減少し、その結果保冷具を乾燥した後再び水を浸透させるのに長時間を要するという問題を抱えていた。   However, as described in paragraph [0013] of Patent Document 2 “completely wash off the slime generated on the surface”, the insulative cooler according to the invention of Patent Document 2 includes the bag portion. When the superabsorbent resin is soaked in water and absorbed by water, a part of the superabsorbent resin gel-like swelling substance (hereinafter referred to as “swelling gel”) leaks outside from the bag portion, There was a problem that slime was adhered to the bag part and caused stickiness when used. Furthermore, once such slime is produced, the slime becomes paste-like and fills the bag part, reducing the water absorption area, and as a result, it takes a long time to infiltrate water again after drying the cooler. Was holding.

前記のヌメリの発生する原因について鋭意検討した結果、本発明者は、1)高吸水性樹脂粒子の形状が不定形である場合には、吸水後の膨潤ゲルの角部が崩れて膨潤ゲルの小片となって布地の繊維の隙間や縫製部分の縫い目から漏れてしまうこと、2)高吸水性樹脂粒子の形状が球状であっても、微粒子成分を含有している場合には、当該微粒子成分由来の膨潤ゲルが、布地の繊維の隙間や縫製部分の縫い目から漏れてしまうことを突き止めた。
上記の知見に基づき、本発明者は、布製の袋部に高吸水性樹脂粒子を充填した本体と、本体に接続された止め具よりなる装身用保冷具の形成に際し、上記高吸水性樹脂粒子として特定形状かつ特定粒子径範囲のものを採用し、さらに前記袋部を特定構造の布地袋とすることにより、上記課題を解消できることを見出し、本発明を完成するに至った。
As a result of intensive studies on the cause of the occurrence of the above-mentioned slime, the present inventors have found that 1) when the shape of the highly water-absorbent resin particles is indefinite, the corners of the swollen gel after water absorption collapse and 2) When the shape of the highly water-absorbent resin particles is spherical, but contains fine particle components, the fine particle components It was found that the swelling gel derived from the liquid leaks from the gaps between the fibers of the fabric and the seams of the sewing parts.
Based on the above knowledge, the inventor made the above-mentioned superabsorbent resin in forming a body cooler comprising a main body in which a cloth bag portion is filled with superabsorbent resin particles and a stopper connected to the main body. The present inventors have found that the above problems can be solved by adopting particles having a specific shape and a specific particle diameter range, and making the bag portion a fabric bag having a specific structure, and have completed the present invention.

すなわち、本発明の第一の態様は、布製の袋部に高吸水性樹脂粒子を充填した本体と、本体に接続された止め具よりなる装身用保冷具であって、
1.前記高吸水性樹脂粒子が、
イ)その形状が球状であり、かつ
ロ)その粒子径の範囲が0.1mm以上1mm以下であり、
2.前記袋部が、
a)透水性の、内布と外布の二重構造となっており、
b)前記内布は吸水前の前記高吸水性樹脂粒子を通過させない繊り密度を有して
おり、
c)その形成に際し、前記内布が吸水前の前記高吸水性粒子を通過させない縫い目
密度にて縫合されている
ことを特徴とする装身用保冷具である。
That is, the first aspect of the present invention is a body cooler composed of a main body filled with superabsorbent resin particles in a cloth bag portion, and a stopper connected to the main body,
1. The superabsorbent resin particles are
B) its shape is spherical; and b) its particle diameter range is from 0.1 mm to 1 mm,
2. The bag portion is
a) It has a double structure of water-permeable inner cloth and outer cloth,
b) The inner cloth has a fine density that prevents the high water absorbent resin particles before water absorption from passing therethrough,
c) A cooler for clothing according to the present invention, wherein the inner cloth is sewn at a stitch density that does not allow the superabsorbent particles before water absorption to pass through.

本発明の第二の態様は、前記高吸水性樹脂粒子が、重量平均粒子径/数平均粒子径の比にて定義される粒子径分布として1.5以下の値を有する前記第一の態様の装身用保冷具である。   According to a second aspect of the present invention, the superabsorbent resin particles have a value of 1.5 or less as a particle size distribution defined by a weight average particle size / number average particle size ratio. This is a cooler for personal use.

本発明の第三の態様は、袋部が縫い目により複数の袋部に仕分けられている前記第一または第二のいずれかの態様の装身用保冷具である。   A third aspect of the present invention is the body cooler according to any one of the first and second aspects, wherein the bag part is sorted into a plurality of bag parts by stitches.

本発明の装身用保冷具は、その本体に充填される高吸水性樹脂粒子の形状が球状であるため、吸水後の膨潤ゲルは外部圧力を加えられても、崩壊して小片を形成することがない。
また前記高吸水性樹脂粒子が所定の粒子径範囲にあるため、小粒子膨潤ゲルの生成がない。このため、本発明の保冷具は、水に浸透させた後においても、布地繊維の隙間や布地製袋部の縫製部分から膨潤ゲルが漏れ出ることがないため、ヌメリを生じたり、べとつき感を与えたりすることがない。
Since the shape of the superabsorbent resin particles filled in the body of the cooler for clothing of the present invention is spherical, the swollen gel after water absorption collapses to form small pieces even when external pressure is applied. There is nothing.
Further, since the superabsorbent resin particles are in a predetermined particle diameter range, there is no generation of a small particle swelling gel. For this reason, the cold insulator of the present invention does not leak the swelling gel from the gaps in the fabric fibers or the sewn portion of the fabric bag portion even after being infiltrated with water, so that a slime or a sticky feeling is generated. There is no giving.

本発明の装身用保冷具の上記特長により、吸水後の当該保冷具を乾燥タオルなどで包んで絞ることにより、本体の布地の水分を十分に絞り取ることが出来る。本発明の保冷具は、その使用期間中は高吸水性樹脂粒子が布地の水分や湿度を吸収するため、蒸れ感がなく使用者に心地よい感触を与える。
また、吸水後の保冷具を冷凍して用いる場合には、上記効果に加え、布地が結露を防止するため、使用者は長期間にわたり心地よく冷涼感を味わうことが出来る。
Due to the above-described features of the cooler for clothing of the present invention, the moisture of the fabric of the main body can be sufficiently squeezed by wrapping the cooler after absorbing water with a dry towel or the like. Since the superabsorbent resin particles absorb the moisture and humidity of the fabric during the period of use, the cold insulator of the present invention gives a comfortable feeling to the user without stuffiness.
In addition to the above-described effects, when the refrigerated cooler after water absorption is frozen, the fabric prevents condensation, so that the user can enjoy a cool feeling comfortably over a long period of time.

本発明の装身用保冷具の概観図である。内布および袋部に充填される高吸水性樹脂粒子は図示していない。It is a general-view figure of the cooler for clothing of the present invention. The superabsorbent resin particles filled in the inner cloth and the bag are not shown. 図1に示す装身用保冷具において、高吸水性樹脂粒子が吸水し、膨潤ゲルとなった状態におけるA-A断面の概略図である。In the cooler for clothing shown in FIG. 1, FIG. 2 is a schematic view of an AA cross section in a state in which highly water-absorbent resin particles absorb water and become a swollen gel. 高吸水性樹脂粒子の吸水、蒸発に伴う本発明装身用保冷具の本体部分の形態の変化を示す図である。It is a figure which shows the change of the form of the main-body part of the cold insulator for this invention accompanying water absorption and evaporation of a highly water-absorbent resin particle. 本発明の装身用保冷具を構成する高吸水性樹脂粒子の吸水前および吸水後の顕微鏡写真の一例である。図中の最小目盛は1mmである。It is an example of the microscope picture before water absorption of the superabsorbent resin particle which comprises the cooler for clothing of the present invention, and after water absorption. The minimum scale in the figure is 1 mm.

本発明の装身用保冷具は、布製の袋部に特定の高吸水性樹脂粒子を充填した本体と、本体に接続された止め具よりなる。
以下、図を用いて本発明の実施形態(実施例)を説明する。
The cooler for clothing of the present invention includes a main body in which a cloth bag portion is filled with specific superabsorbent resin particles, and a stopper connected to the main body.
Hereinafter, embodiments (examples) of the present invention will be described with reference to the drawings.

本発明の装身用保冷具本体の袋部は、布地を縫製加工することにより、後述する高吸水性樹脂粒子を収納し得るものである。当該袋部は高吸水性樹脂粒子が水を吸水してなる膨潤ゲルを収納するに足る空間を有する。これにより、保冷具が十分な量の水を膨潤ゲル内部に保持することができ、保冷時間を長くすることが可能となる。   The bag part of the cooler main body for clothing of the present invention can store the highly water-absorbent resin particles described later by sewing the fabric. The bag portion has a space sufficient to accommodate a swollen gel formed by the water-absorbing resin particles absorbing water. Thereby, the cold insulator can hold a sufficient amount of water inside the swollen gel, and the cold insulation time can be extended.

前記袋部は、透水性の内布/透水性の外布よりなる二重構造となっている。ここで透水性の内布/透水性の外布とは、撥水処理や防水処理を施されておらず、布地本来の吸湿性や吸水性を保持している布地を言う。二重構造とすることにより、内布として後述する高吸水性樹脂粒子を通過させない織り密度の高い布地を、外布として肌ざわりの良い布地とに 使い分けることが出来る。   The said bag part has a double structure which consists of a water-permeable inner cloth / water-permeable outer cloth. Here, the water-permeable inner cloth / water-permeable outer cloth refers to a cloth that has not been subjected to water-repellent treatment or waterproof treatment and retains the original hygroscopicity or water-absorbing property of the cloth. By adopting a double structure, a fabric having a high weaving density that does not allow passage of superabsorbent resin particles, which will be described later, as an inner fabric can be properly used as a fabric having a soft texture as an outer fabric.

内布は、後述する高吸水性樹脂粒子が漏れない程度の織り密度を有することが必要である。高吸水性樹脂の吸水前の粒子径に応じ、縦糸密度(本数/インチ)×横糸密度(本数/インチ)の表示にて、108(本数/インチ)×58(本数/インチ)〜140(本数/インチ)×120(本数/インチ)の範囲にあるものを好適に用いることが出来る。   The inner fabric needs to have a weaving density such that the highly water-absorbent resin particles described later do not leak. 108 (number / inch) x 58 (number / inch) to 140 (number) in terms of warp density (number / inch) x weft density (number / inch) according to the particle diameter of the superabsorbent resin before water absorption. / Inch) × 120 (number / inch) can be preferably used.

袋部の形成に際し、前記内布が吸水前の高吸水性樹脂粒子を通過させない縫い目密度にて縫合されていることが必要である。縫い目密度としては、インチ当たりのステッチ数(縫い目の数)の表示にて、7〜20の範囲が好ましい。   When forming the bag portion, it is necessary that the inner cloth is sewn at a seam density that does not allow the high water absorbent resin particles before water absorption to pass through. The stitch density is preferably in the range of 7 to 20 in terms of the number of stitches per inch (number of stitches).

本発明においては、前記袋部に縫い目を加えることにより、複数の袋部に分けることが出来る。袋部を分けることにより、袋部が膨潤ゲルにて充填された状態においても、当該縫い目部分にて容易に屈曲させることができるので、首・頭部・腕・足首・大腿部・腰部などの形状に合わせて、保冷具を適切に密着させることができる(図1,2)。   In this invention, it can divide | segment into a some bag part by adding a seam to the said bag part. By dividing the bag, it can be easily bent at the seam even when the bag is filled with the swollen gel, so the neck, head, arms, ankle, thigh, waist, etc. In accordance with the shape, the cold insulator can be properly adhered (FIGS. 1 and 2).

本発明においては、透水性布地の繊維素材として抗菌性繊維を採用することも出来る。これにより、汗の吸収に伴う菌の発生を抑制できるため、衛生的にも優れる。   In the present invention, antibacterial fibers can also be employed as the fiber material of the water permeable fabric. Thereby, since generation | occurrence | production of the microbe accompanying absorption of sweat can be suppressed, it is excellent also in hygiene.

次に、本発明を構成する高吸水性樹脂について説明する。
本発明に用いられる高吸水性樹脂とは水溶性樹脂を軽度に架橋したものであり、多種のものが知られている。中でも、吸水性が高いことや吸水後の粒子強度が高いことから、ポリアクリル酸塩系のものが特に好ましい。
Next, the super absorbent resin constituting the present invention will be described.
The highly water-absorbent resin used in the present invention is a lightly crosslinked water-soluble resin, and various types are known. Of these, polyacrylates are particularly preferred because of their high water absorption and high particle strength after water absorption.

前述のように、市販の高吸水性樹脂は粒子の形態にて得られ、その製造法に依拠して、その樹脂粒子の形状が不定形状のものと球状のものに大別されるが、本発明にて用いられる高吸水性樹脂はその粒子の形状が球状であることが必要である。
粒子の形状が不定形である場合には、外部から圧力が加わった時に吸水した膨潤ゲルの角が崩れ易く、崩れた膨潤粒子の小片が前記袋部より外部に漏れてしまうからである。
As described above, commercially available superabsorbent resins are obtained in the form of particles, and depending on the production method, the resin particles are roughly classified into those having an indefinite shape and those having a spherical shape. The superabsorbent resin used in the invention needs to have a spherical particle shape.
This is because, when the shape of the particles is indefinite, the corners of the swollen gel that has absorbed water when pressure is applied from the outside are liable to collapse, and the broken pieces of the swollen particles leak to the outside from the bag portion.

また粒子の形状が球状であっても、微粒子成分を多く含む場合には、その微粒子成分由来の膨潤ゲルが前記袋部より外部に漏れてしまい、この場合にも本発明の目的を達し得ない。   Even if the particle shape is spherical, if it contains a large amount of fine particle component, the swelling gel derived from the fine particle component leaks outside from the bag portion, and even in this case, the object of the present invention cannot be achieved. .

さらに高吸水性樹脂には、一次粒子(重合初期に形成される樹脂粒子)が球状であっても、重合中に互いに凝集して顆粒状(ブドウの房状)の形態を成すものもあるが、このような顆粒状の粒子形態をとる高吸水性樹脂の場合にも、顆粒状粒子由来の膨潤ゲルが互いに分離して小片となって前記袋部より漏れることがあり、好ましくない。   Further, some superabsorbent resins have a primary particle (resin particle formed at the initial stage of polymerization) that is spherical, but aggregates with each other during polymerization to form a granular form (grape bunch). Even in the case of such a highly water-absorbent resin in the form of granular particles, the swollen gels derived from the granular particles may be separated from each other into small pieces and leak from the bag portion, which is not preferable.

次に、本発明においては、高吸水性樹脂粒子の粒子径の範囲が0.1mm以上1mm以下であることが必要である。粒子径が0.1mmに満たない粒子は、前記袋部、特にその縫製加工部より漏れてしまい好ましくない。他方、粒子径が1mmを超える粒子は吸水速度が遅く、また吸水後の膨潤ゲルの強度が十分でなく、強い圧力が加わった場合に崩れやすくなり好ましくない。   Next, in the present invention, the range of the particle diameter of the highly water-absorbent resin particles needs to be 0.1 mm or more and 1 mm or less. Particles having a particle diameter of less than 0.1 mm are not preferable because they leak from the bag part, particularly the sewing processed part. On the other hand, particles having a particle diameter exceeding 1 mm have a low water absorption rate, and the strength of the swollen gel after water absorption is not sufficient.

高吸水性樹脂粒子は、その重量平均粒子径/数平均粒子径の比で定義される粒子径分布の値が小さいことが好ましく、1.5以下であることがより好ましい。
ここで重量平均粒子径および数平均粒子径は下式にて定義されるものである。
[数1]
重量平均粒子径=ΣND /ΣND
[数2]
数平均粒子径=ΣND/ΣN
なお、Nは直径がDである粒子の個数である。
上記粒子径分布の値は、粒子が均一粒子径の場合は1となり、その分布幅が広いほど大きな値となる。
本発明において、上記粒子径分布の値が1.5以下である場合には、高吸水性樹脂粒子の吸水速度と膨潤ゲルの強度とのバランスが優れる。実施例にて使用した高吸水性樹脂粒子の吸水前および吸水後の顕微鏡写真を図4に示す。粒子径分布は1.1である。
The highly water-absorbent resin particles preferably have a small particle size distribution defined by the ratio of the weight average particle size / number average particle size, and more preferably 1.5 or less.
Here, the weight average particle size and the number average particle size are defined by the following equations.
[Equation 1]
Weight average particle diameter = ΣN i D i 4 / ΣN i D i 3
[Equation 2]
Number average particle size = ΣN i D i / ΣN i
Note that N i is the number of particles having a diameter D i .
The value of the particle size distribution is 1 when the particles have a uniform particle size, and increases as the distribution width increases.
In the present invention, when the value of the particle size distribution is 1.5 or less, the balance between the water absorption rate of the highly water-absorbent resin particles and the strength of the swollen gel is excellent. FIG. 4 shows micrographs of the highly water-absorbent resin particles used in the examples before and after water absorption. The particle size distribution is 1.1.

高吸水性樹脂粒子の形状および直径は、定法に従い、例えば顕微鏡写真により判定することができる。   The shape and diameter of the superabsorbent resin particles can be determined according to a conventional method, for example, by a micrograph.

高吸水性樹脂の粒子の形状および粒子径に関する上記の要件を満たす高吸水性樹脂粒子は、逆相懸濁重合方法において、懸濁粒子の一次粒子を大きくするべく、水溶性単量体と水を含む水相の粘度を調整し、かつ重合途中での一次粒子の凝集を抑制するため、凝集抑制剤を加える等の特別の工夫を加えた方法にて得られる。このような高吸水性樹脂粒子の製造法としては例えば韓国特許公開第10−2005−0022813号公報を挙げることが出来る。   Superabsorbent resin particles satisfying the above requirements regarding the shape and particle size of superabsorbent resin particles are obtained by using a water-soluble monomer and water in order to enlarge the primary particles of the suspended particles in the reverse phase suspension polymerization method. In order to adjust the viscosity of the aqueous phase containing and to suppress the aggregation of primary particles during the polymerization, it can be obtained by a method with special measures such as adding an aggregation inhibitor. An example of a method for producing such highly water-absorbent resin particles is Korean Patent Publication No. 10-2005-0022813.

以上に述べた構成とすることにより、本発明の装身用保冷具を水に浸せば、本体に充填された高吸水性樹脂が速やかに吸水してその体積を増やして膨潤ゲルを形成する(図3)。そして、既に述べたとおり、本発明の構成成分である高吸水性樹脂が特定形状、特定粒子径範囲にあり、かつ袋部が内布と外布からなる特定の二重構造となっているため、
いったん吸水させた保冷具を乾燥タオルなどにて絞れば、膨潤ゲルが漏れ出ることなく、
布地から水分を十分に除去させることが出来、前記の本発明の効果を奏することが出来る。
With the configuration described above, if the cooler for clothing of the present invention is immersed in water, the superabsorbent resin filled in the main body quickly absorbs water and increases its volume to form a swollen gel ( FIG. 3). And as already stated, because the superabsorbent resin, which is a constituent of the present invention, has a specific shape, a specific particle diameter range, and the bag portion has a specific double structure consisting of an inner cloth and an outer cloth. ,
If you squeeze the water cooler once absorbed with a dry towel etc., the swelling gel will not leak,
Water can be sufficiently removed from the fabric, and the effects of the present invention can be achieved.

本発明の装身用保冷具は、常法に従い、その両端部に止め具を備える。止め具としては、ボタン、スナップ式ボタン、ホック、面(状)ファスナー、ベルト式止め具、磁石式止め具等を用いることが出来るが、実用的見地からは面(状)ファスナーが好ましい。上記の止め具を備えるほか、変法として、袋部を有する布地の長手方向の両端部を弾性体によって連結させた構成とすることにもできる。   The cooler for clothing of the present invention is provided with stoppers at both ends in accordance with a conventional method. As the stopper, a button, a snap button, a hook, a surface (shape) fastener, a belt-type stopper, a magnetic stopper, or the like can be used, but a surface (shape) fastener is preferable from a practical viewpoint. In addition to providing the above-described stopper, as a modified method, both ends in the longitudinal direction of the fabric having the bag portion may be connected by an elastic body.

本発明の装身用保冷具は、所望の温度に調整した水に浸すことにより、直ちに所望温度の水を吸水し、かつヌメリを生じないため、目的に応じて身体の部分を冷やすことができる。このため、夏季を快適に過ごすための用具として需要が見込まれ、産業上の利用価値は大である。   Since the cooler for clothing of the present invention is soaked in water adjusted to a desired temperature, it immediately absorbs water at the desired temperature and does not cause slimming, so that the body part can be cooled according to the purpose. . For this reason, demand is expected as a tool for comfortably in the summer, and the industrial utility value is great.

1.本体
2.外布
3.内布
4.袋部
5.縫い目
6.縫い目
7.高吸水性樹脂
8.膨潤ゲル
9.止め具
1. Body 2. Outer cloth
3. Inner cloth 4. 4. Bag part 5. Seam Seam 7. Superabsorbent resin 8. 8. Swelling gel Stop

Claims (3)

布製の袋部に高吸水性樹脂粒子を充填した本体と、本体に接続された止め具よりなる装身用保冷具であって、
1.前記高吸水性樹脂粒子が、
イ)その形状が球状であり、かつ
ロ)その粒子径の範囲が0.1mm以上1mm以下であり、
2.前記袋部が、
a)透水性の、内布と外布の二重構造となっており、
b)前記内布は吸水前の前記高吸水性樹脂粒子を通過させない繊り密度を有しており、
c)その形成に際し、前記内布が吸水前の前記高吸水性粒子を通過させない縫い目
密度にて縫合されている
ことを特徴とする装身用保冷具
A body cooler comprising a body filled with superabsorbent resin particles in a cloth bag and a stopper connected to the body,
1. The superabsorbent resin particles are
B) its shape is spherical; and b) its particle diameter range is from 0.1 mm to 1 mm,
2. The bag portion is
a) It has a double structure of water-permeable inner cloth and outer cloth,
b) The inner cloth has a fine density that does not allow the high water absorbent resin particles before water absorption to pass through,
c) A cooler for clothing, wherein the inner cloth is sewn at a seam density that does not allow the superabsorbent particles before water absorption to pass therethrough.
重量平均粒子径/数平均粒子径の比にて定義される前記高吸水性樹脂粒子の粒子径分布の値が1.5以下である請求項1の装身用保冷具 The cooler for clothing according to claim 1, wherein a value of a particle size distribution of the superabsorbent resin particles defined by a ratio of weight average particle size / number average particle size is 1.5 or less. 袋部が縫い目により複数の袋部に分けられている請求項1または2に記載の装身用保冷具 The cold insulator for clothing according to claim 1 or 2, wherein the bag portion is divided into a plurality of bag portions by seams.
JP2011022408A 2011-02-04 2011-02-04 Cooling tool for dressing Withdrawn JP2012161391A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019060065A (en) * 2017-09-25 2019-04-18 章子 田中 Heat/cold insulation tool
JP2021194868A (en) * 2020-06-16 2021-12-27 伊澤タオル株式会社 Water-absorbing cloth product

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019060065A (en) * 2017-09-25 2019-04-18 章子 田中 Heat/cold insulation tool
JP2021194868A (en) * 2020-06-16 2021-12-27 伊澤タオル株式会社 Water-absorbing cloth product

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