JPH0577426B2 - - Google Patents
Info
- Publication number
- JPH0577426B2 JPH0577426B2 JP60216788A JP21678885A JPH0577426B2 JP H0577426 B2 JPH0577426 B2 JP H0577426B2 JP 60216788 A JP60216788 A JP 60216788A JP 21678885 A JP21678885 A JP 21678885A JP H0577426 B2 JPH0577426 B2 JP H0577426B2
- Authority
- JP
- Japan
- Prior art keywords
- water
- urine
- absorbing member
- sheet
- contact
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
Links
Landscapes
- Absorbent Articles And Supports Therefor (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、おむつが尿などによつて漏れた場
合、それを肉眼で容易に検知することのできる使
い捨ておむつに関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a disposable diaper that can easily detect with the naked eye when the diaper leaks due to urine or the like.
（従来技術）
最近、木綿のおむつに代わつて、持ち運びが便
利で使い易い、使い捨ておむつが主流を示すよう
になつてきた。(Prior Art) Recently, disposable diapers, which are convenient to carry and easy to use, have become mainstream, replacing cotton diapers.
このような使い捨ておむつは一般に外側（肌に
接する側）に水透過性シート、その内側に尿吸収
部剤を保有し、更にその上に水不透過性シートが
あり構成されている。 Such disposable diapers generally have a water-permeable sheet on the outside (the side that contacts the skin), a urine-absorbing agent on the inside, and a water-impermeable sheet on top of the water-permeable sheet.
前記した水不透過性シートはおむつカバーを兼
ねるものであり、内部の尿のよごれがはつきり見
えない方がよいため一般に半透明のプラスチツク
シートが用いられている。 The water-impermeable sheet described above also serves as a diaper cover, and generally a translucent plastic sheet is used because it is better not to see urine stains inside the diaper.
（発明が解決しようとしている問題点）
このような半透明なプラスチツクシートのカバ
ーで覆われていると、尿の量を肉眼で判断するの
がなかなか困難であり、おむつをはずして、手で
確かめなくてはならず、又簡易固定布、粘着テー
プは一度はずすと、二度目はしつかりとした固定
ができなかつた。(Problem that the invention seeks to solve) When covered with such a translucent plastic sheet cover, it is quite difficult to judge the amount of urine with the naked eye, so it is difficult to judge the amount of urine with the naked eye. Moreover, once the simple fixing cloth and adhesive tape were removed, it could not be firmly fixed the second time.
これらの欠点を解消する目的で染料やPH指示薬
を水不透過性シートの内側で尿吸収部材と接する
面に印刷を施して尿によつて印刷した模様が消え
るようにしたものが既に実用に供されている。 In order to overcome these drawbacks, a product in which a dye or a PH indicator is printed on the inside surface of a water-impermeable sheet that contacts the urine absorbing member so that the printed pattern disappears due to urine has already been put into practical use. has been done.
しかしながら、このように尿等の水分によつて
印刷した模様を消すタイプのものは少しぐらいの
水分では模様の色調が薄くなる程度で残つていた
りするため、どの程度の漏れ具合か判断しにくい
欠陥があつた。 However, with this type of product where the printed pattern is erased by moisture such as urine, even a small amount of moisture may leave the pattern to a lighter tone, making it difficult to judge the degree of leakage. There was a defect.
（問題を解決するための手段）
本発明者等は前記に鑑みて、尿等によつて漏れ
ると発色する使い捨ておむつを得るべく種々研究
を重ねた結果、水可溶性染料の少量を水吸収性高
分子物、疎水性結着剤および疎水性有機溶媒に分
散せしめた実質的に無色の印刷インキを調整し、
この印刷インキによりプラスチツクシートに模様
を形成した結果、この模様は、水等に接触する前
は殆ど無色であるがその模様部分を水や尿で湿ら
すことによつて鮮やかな色調に発色することを知
見して本発明に到達した。すなわち、本発明は、
尿吸収部材と該尿吸収部材に接する水不透過性
の透明もしくは半透明シートから成る使い捨てお
むつにおいて、前記水不透過性シートの前記尿吸
収部材と接する面に、少量の水可溶性染料を水吸
収性高分子物、疎水性結着剤および疎水性有機溶
媒に分散せしめた印刷インキにより文字、模様等
を設けて成ることを特徴とする使い捨ておむつで
ある。(Means for Solving the Problem) In view of the above, the inventors of the present invention have conducted various studies in order to obtain disposable diapers that develop color when leaked with urine, etc. As a result, the inventors of the present invention have developed a method of adding a small amount of water-soluble dye to a diaper with high water absorption properties. preparing a substantially colorless printing ink dispersed in a molecular substance, a hydrophobic binder and a hydrophobic organic solvent;
As a result of forming a pattern on a plastic sheet using this printing ink, this pattern is almost colorless before it comes into contact with water, etc., but when the patterned area is moistened with water or urine, it develops into a vivid color tone. The present invention was achieved by discovering the following. That is, the present invention provides a disposable diaper comprising a urine-absorbing member and a water-impermeable transparent or translucent sheet in contact with the urine-absorbing member, in which a small amount of water is applied to the surface of the water-impermeable sheet in contact with the urine-absorbing member. This disposable diaper is characterized in that characters, patterns, etc. are provided using printing ink in which a water-soluble dye is dispersed in a water-absorbing polymer, a hydrophobic binder, and a hydrophobic organic solvent.
本発明を更に詳細に説明すると、本発明におい
て使用する水可溶性染料とは、例えば、直接染
料、酸性染料、反応性染料、含塩基性染料（カチ
オン染料）等が挙げられる。 To explain the present invention in more detail, the water-soluble dyes used in the present invention include, for example, direct dyes, acid dyes, reactive dyes, basic dyes (cationic dyes), and the like.
また本発明に用いる水吸収性高分子物とは、水
に接触すると水を吸収して膨張するが、水には溶
解しない高分子物であり、例えば、デンプン−ポ
リアクリル酸ナトリウムグラフト化物、デンプン
−ポリアクリロニトリルグラフト化物のケン化
物、セルロース−ポリアクリル酸ナトリウム、架
橋ポリメタクリル酸ナトリウム、架橋ポリメタク
リル酸カリウム、ビニルアルコール−メタアクリ
ル酸ナトリウム、メタアクリル酸共重合体、架橋
イソブチレン−無水マレイン酸共重合体のアルカ
リ中和物、架橋カルボキシメチルセルロースのナ
トリウム塩、架橋ポリエチレンオキシド、ポリオ
キシエチレン鎖含有ポリウレタン等である。 The water-absorbing polymer used in the present invention is a polymer that absorbs water and swells when it comes into contact with water, but does not dissolve in water, such as starch-sodium polyacrylate grafts, starch, etc. -Saponified polyacrylonitrile grafted product, cellulose-sodium polyacrylate, cross-linked polysodium methacrylate, cross-linked polypotassium methacrylate, vinyl alcohol-sodium methacrylate, methacrylic acid copolymer, cross-linked isobutylene-maleic anhydride copolymer These include alkali neutralized products of polymers, sodium salts of crosslinked carboxymethylcellulose, crosslinked polyethylene oxide, polyurethanes containing polyoxyethylene chains, and the like.
本発明に用いる疎水性結着剤とは、水可溶性染
料および水吸収性高分子部をシートに固着させる
役割をなすもので、例えば、アクリル系樹脂、塩
化ビニル系樹脂、塩素化エチレン−酢酸ビニル共
重合体、塩素化ポリプロピレン、ポリウレタン樹
脂、塩化ビニル−酢酸ビニル樹脂、フエノール樹
脂、エポキシ樹脂、ニトロセルローズ、環化ゴム
等の塗料、インキ用の樹脂が挙げられる。 The hydrophobic binder used in the present invention plays a role in fixing water-soluble dyes and water-absorbing polymer parts to the sheet, and includes, for example, acrylic resin, vinyl chloride resin, chlorinated ethylene-vinyl acetate resin, etc. Examples include resins for paints and inks such as copolymers, chlorinated polypropylene, polyurethane resins, vinyl chloride-vinyl acetate resins, phenol resins, epoxy resins, nitrocellulose, and cyclized rubber.
前記の水吸収性高分子物／疎水性結着剤の重量
比は、５／５〜30／20であるが、好ましくは10／
10〜20／20である。 The weight ratio of the water-absorbing polymer/hydrophobic binder is 5/5 to 30/20, preferably 10/20.
It is 10-20/20.
更にまた本発明で使用する疎水性有機溶媒と
は、トリオール、キシロール、シクロヘキサン、
ジオキサン、ジメチルホルムアミド、メタノー
ル、エタノール、イソプロパノール、ブタノー
ル、メチルエチルケトン、メチルイソブチルケト
ン、アセトン、酢酸エチル、酢酸メチル、酢酸ブ
チル、テトラヒドロフラン、四塩化炭素、クロロ
ホルム、トリクレン等が挙げられる。 Furthermore, the hydrophobic organic solvent used in the present invention includes triol, xylol, cyclohexane,
Dioxane, dimethylformamide, methanol, ethanol, isopropanol, butanol, methyl ethyl ketone, methyl isobutyl ketone, acetone, ethyl acetate, methyl acetate, butyl acetate, tetrahydrofuran, carbon tetrachloride, chloroform, trichlene, and the like.
前記した各成分はロールミル、ボールミル等に
よつてインキ化することができる。 Each of the above-mentioned components can be formed into an ink using a roll mill, a ball mill, or the like.
このようにして得られたインキは、スクリーン
印刷、グラビア印刷などによつて、ポリエチレ
ン、ポリプロピレン、ポリエステル、ナイロン、
ポリスチレン等の透明もしくは半透明シートの尿
吸収部材と接する面に印刷される。 The ink thus obtained can be printed on polyethylene, polypropylene, polyester, nylon, etc. by screen printing, gravure printing, etc.
It is printed on the surface of a transparent or translucent sheet such as polystyrene that comes into contact with the urine absorbing member.
（作用効果）
本発明の使い捨ておむつは、尿吸収部材と接す
る面に水可溶性染料、水吸収性高分子物、疎水性
結着剤を主体としたインキによつて模様が印刷し
てある。この印刷模様は尿等に接触したとき、は
じめて染料が溶出して発色するので、尿などによ
つて漏れる前は染料は少量であるため染料の色は
殆ど認められない。(Effects) The disposable diaper of the present invention has a pattern printed on the surface in contact with the urine absorbing member using ink mainly containing a water-soluble dye, a water-absorbing polymer, and a hydrophobic binder. This printed pattern develops color only when it comes into contact with urine or the like, and the color of the dye is hardly recognized before it is eluted with urine or the like because the amount of dye is small.
また印刷模様部分には水吸収性高分子物が存在
するため、保水性がよく、染料が尿等と接触して
発色しても、その発色部分がにじんで印刷模様が
ぼけることがない。したがつて、この発色模様に
よつておむつの尿による漏れの程度を外から容易
に判断することができる。 Furthermore, since the water-absorbing polymer is present in the printed pattern, it has good water retention, and even if the dye develops color when it comes into contact with urine, the colored area will not bleed and the printed pattern will not become blurred. Therefore, the degree of urine leakage from the diaper can be easily determined from the outside based on this colored pattern.
以下、実施例により本発明を具体的に説明す
る。 Hereinafter, the present invention will be specifically explained with reference to Examples.
実施例 １
二酸化チタンを少量分散せしめた半透明のポリ
エチレンシートの尿吸収部材と接する面に下記す
る組成のインキを用いて、シルクスクリーンによ
り模様を印刷した。Example 1 A pattern was printed by silk screen on the surface of a translucent polyethylene sheet in which a small amount of titanium dioxide was dispersed, which was in contact with the urine absorbing member, using an ink having the composition shown below.
反応性染料（商品名；カヤチオンレツドＰ−
2B）日本化薬社製品 0.2重量部
水吸収性高分子物（商品名；IM−300MPS）
三洋化成社製品 10重量部
塩素化ポリプロピレン（塩素化度 29.5％）
5.6重量部
塩素化エチレン−酢酸ビニル共重合体（酢酸ビ
ニル８モル％、塩素化度 27重量部）
13.1重量部
メチルエチルケトン 15.1重量部
トルエン 56.0重量部
前記の印刷模様は殆ど無色であつた。Reactive dye (product name: Kayathion Red P-
2B) Nippon Kayaku Co., Ltd. product 0.2 parts by weight water-absorbing polymer (product name: IM-300MPS)
Sanyo Kasei product 10 parts by weight chlorinated polypropylene (degree of chlorination 29.5%)
5.6 parts by weight Chlorinated ethylene-vinyl acetate copolymer (vinyl acetate 8 mol%, degree of chlorination 27 parts by weight)
13.1 parts by weight Methyl ethyl ketone 15.1 parts by weight Toluene 56.0 parts by weight The printed pattern was almost colorless.
次いで、この半透明のポリエチレンシートの印
刷面に尿吸収部材として紙パルプを包含させ、使
い捨ておむつを作つた。 Next, paper pulp was incorporated into the printed surface of this translucent polyethylene sheet as a urine absorbing member to produce a disposable diaper.
このおむつシート外部からは、印刷模様は全く
見られなかつたが、尿吸収部材が尿などで湿つた
場合、前記の印刷模様部分が鮮明な赤色として現
れた。 No printed pattern was visible from the outside of this diaper sheet, but when the urine absorbing member became wet with urine, the printed pattern appeared as a bright red color.
実施例 ２
二酸化チタンを少量分散せしめた半透明のポリ
エチレンシートの尿吸収部材と接する面に下記す
る組成のインキを用いてスクリーンプリントにて
模様を印刷した。Example 2 A pattern was printed by screen printing on the surface of a translucent polyethylene sheet in which a small amount of titanium dioxide was dispersed, which was in contact with the urine absorbing member, using an ink having the composition shown below.
処方（配合）
直接染料（商品名；SolarBrilleant Red BA）
サンドリン社製品 0.2重量部
水吸収性高分子物（商品名；IM−300MPS）
三洋化成社製品 20重量部
ウレタン樹脂（20％）ワニル（商品名；ラミツ
クＦ−220）大日精化工業製 70重量部
メチルエチルケトン 9.8重量部
前記の印刷模様は殆ど無色であつた。Prescription (composition) Direct dye (product name: SolarBrilleant Red BA)
Sandrin product 0.2 parts by weight water-absorbing polymer (product name: IM-300MPS)
Sanyo Chemical Co., Ltd. product 20 parts by weight Urethane resin (20%) Vanyl (trade name: Ramik F-220) Dainichiseika Chemical Co., Ltd. 70 parts by weight Methyl ethyl ketone 9.8 parts by weight The printed pattern was almost colorless.
次いで、この半透明のポリエチレンシートの印
刷面に尿吸収部材として紙パルプを包含させ、使
い捨ておむつを作つた。 Next, paper pulp was incorporated into the printed surface of this translucent polyethylene sheet as a urine absorbing member to produce a disposable diaper.
このおむつシート外部からは、印刷模様は全く
見られなかつたが、尿吸収部材が尿などで湿つた
場合、前記の印刷模様部分が鮮明な赤色として現
れた。 No printed pattern was visible from the outside of this diaper sheet, but when the urine absorbing member became wet with urine, the printed pattern appeared as a bright red color.
Claims (1)
性の透明もしくは半透明シートから成る使い捨て
おむつにおいて、前記水不透過性シートの前記尿
吸収部材と接する面に、少量の水可溶性染料を水
吸収性高分子物、疎水性結着剤および疎水性有機
溶媒に分散せしめた印刷インキにより文字、模様
等を設けて成ることを特徴とする使い捨ておむ
つ。1. In a disposable diaper consisting of a urine absorbing member and a water-impermeable transparent or translucent sheet in contact with the urine absorbing member, a small amount of water-soluble dye is applied to the surface of the water-impermeable sheet in contact with the urine absorbing member. 1. A disposable diaper characterized by having characters, patterns, etc. formed using printing ink dispersed in an absorbent polymer, a hydrophobic binder, and a hydrophobic organic solvent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60216788A JPS6278201A (en) | 1985-09-30 | 1985-09-30 | disposable diapers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60216788A JPS6278201A (en) | 1985-09-30 | 1985-09-30 | disposable diapers |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6278201A JPS6278201A (en) | 1987-04-10 |
| JPH0577426B2 true JPH0577426B2 (en) | 1993-10-26 |
Family
ID=16693889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60216788A Granted JPS6278201A (en) | 1985-09-30 | 1985-09-30 | disposable diapers |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6278201A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001327532A (en) * | 2000-05-22 | 2001-11-27 | Pilot Ink Co Ltd | Diapers with urination display |
| JP2006057056A (en) * | 2004-08-23 | 2006-03-02 | Dainichiseika Color & Chem Mfg Co Ltd | Gravure ink for polypropylene film |
| DE112007000560B4 (en) | 2006-03-13 | 2015-02-05 | Honda Motor Co., Ltd. | Tool head, machine tool and drilling method for drilling a cylinder block using the machine tool |
| JP5069521B2 (en) * | 2007-08-28 | 2012-11-07 | 大王製紙株式会社 | Absorbent articles |
| JP5728967B2 (en) * | 2011-01-26 | 2015-06-03 | 東洋インキＳｃホールディングス株式会社 | Silk screen ink composition |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5842107U (en) * | 1981-09-11 | 1983-03-19 | 吉元 道夫 | Disposable diaper with color changing material |
| JPS6099001A (en) * | 1983-11-04 | 1985-06-01 | 三井東圧化学株式会社 | Production of backing sheet for disposable diaper |
-
1985
- 1985-09-30 JP JP60216788A patent/JPS6278201A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6278201A (en) | 1987-04-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9555147B2 (en) | Aqueous-triggered color-appearing inks | |
| KR100697964B1 (en) | Hydrochromic fabric sheets and toy sets using them and writing instruments for chromosome | |
| AU628470B2 (en) | Moisture sensitive film | |
| KR100360179B1 (en) | High color density printing on sanitary disposable paper products exhibiting resistance to ink rub-off | |
| JP5844904B2 (en) | Submerged label using coated capsule structure | |
| RU2607548C2 (en) | Absorbent article including two dimensional code made from active graphic | |
| US5354598A (en) | Article capable of displaying defined images | |
| GB1565589A (en) | Package for sterilization | |
| WO2002051644A1 (en) | Ink-printed substrate web and disposable absorbent article exhibiting improved ink rub-off resistance | |
| WO1983002090A1 (en) | Oil-repellent microvoid-imaging material | |
| RU2604678C2 (en) | Discoloring composition and material | |
| HK95794A (en) | Ink composition | |
| JPH0577426B2 (en) | ||
| JPS63234139A (en) | Water sensitive sheet material | |
| US3989279A (en) | Latent indicia carrier | |
| JPS6348643Y2 (en) | ||
| CN216061004U (en) | Bottom film for disposable absorbent article with water-sensitive color developing and anti-counterfeiting coating | |
| CN216832668U (en) | Printing ventilated membrane that urine that water permeability is good wet discolours | |
| CN216061011U (en) | Disposable absorption product with anti-counterfeiting and urine-wet color development functions | |
| CA2287168A1 (en) | A detergent composition comprising a dye transfer inhibiting polymer and a water soluble sunscreen | |
| JP2002254547A (en) | Water discoloration material set and water discoloration image disappearance delay method | |
| JP2004285191A (en) | Indicator ink composition that changes color due to moisture | |
| JP3129140U (en) | Disposable mat | |
| JPH0234199Y2 (en) | ||
| JP2787869B2 (en) | Coloring inhibitor |