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JPS6363642B2 - - Google Patents
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JPS6363642B2 - - Google Patents

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Publication number
JPS6363642B2
JPS6363642B2 JP56195449A JP19544981A JPS6363642B2 JP S6363642 B2 JPS6363642 B2 JP S6363642B2 JP 56195449 A JP56195449 A JP 56195449A JP 19544981 A JP19544981 A JP 19544981A JP S6363642 B2 JPS6363642 B2 JP S6363642B2
Authority
JP
Japan
Prior art keywords
wig base
synthetic resin
mold
male mold
male
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
Application number
JP56195449A
Other languages
Japanese (ja)
Other versions
JPS5898407A (en
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 filed Critical
Priority to JP19544981A priority Critical patent/JPS5898407A/en
Publication of JPS5898407A publication Critical patent/JPS5898407A/en
Publication of JPS6363642B2 publication Critical patent/JPS6363642B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Materials For Medical Uses (AREA)

Description

【発明の詳細な説明】[Detailed description of the invention]

本発明は、かつらベースの製造法に関する。更
に詳しくは、雄型にかつらベース塗剤を塗布する
ことからなるかつらベースの製造法に関する。 比較的低温度の加熱で軟化および成形すること
ができ、室温迄それを冷却したとき成形された形
状を保持したまま硬化し得る熱可塑性合成樹脂シ
ート、例えばトランス―1,4―ポリイソプレン
シートを加熱して頭部に押し当てて雌型を製作
し、この雌型に石膏を充填して雄型を成形し、成
形された雄型にかつらベース塗剤としての合成樹
脂溶液、例えばウレタンプレポリマー溶液を塗布
してかつらベースを製造することは、特開昭55−
116804号公報に記載されている。 しかしながら、雄型が石膏型、粘土、セメント
などの無機質の材料から成形された場合には、次
のような不都合がみられる。 (1) 成形に際し水を用いた場合には、水分の乾燥
除去のために十分な時間をかけてエージイング
を行わなければならず、水分の除去が不完全の
場合には、かつらベース塗剤として一般に用い
られるウレタンプレポリマーの架橋反応が十分
に行われないばかりではなく、異常反応により
発生する炭酸ガスによる発泡でかつらベース中
に気泡が存在するようになり、これはかつらベ
ース被膜強度を著しく低下させるばかりではな
く、白濁など外観を損わせる原因となる。 〔正常反応〕 −NCO+−OH→−NHCOO− 〔異常反応〕 −NCO+H2O→−NHCOOH −NHCOOH+−NCO→−NHCONH−
+CO2↑ (2) 雄型表面の物理的化学的接着力により、そこ
に形成させたかつらベースの剥離が一般に困難
であり、極端な場合には剥離できないか、ある
いは剥離できても変形乃至破損、石膏の混入な
どを生ずることが多い。このため、雄型上に予
めフツ素樹脂、シリコーンなどの離型剤を塗布
しておき、かつらベースの雄型からの離型性を
良好ならしめようとすることも行われるが、後
記比較例の結果に示されるように、それの離型
性改善効果は殆んどみられないばかりではな
く、雄型材料に起因する異物の混入や気泡の発
生などが多くみられ、不良品発生の防止能力の
点でも欠けている。 こうした欠点のみられる無機質雄型材料に代つ
て、エポキシ樹脂と硬化剤とからなるプラスセメ
ントなどを使用することが考えられるが、このよ
うな有機質材料から成形された雄型は、高価であ
るばかりではなく、その表面に塗布されるかつら
ベース塗剤の合成樹脂溶液に溶解または膨潤し、
従つて相溶接着してしまうばかりではなく、雄型
自体の変形さえももたらされる。 本発明は、かかる欠点をもたらさずに無機質あ
るいは有機質材料から成形された雄型にかつらベ
ース塗剤を塗布する方法を提供することを目的と
するものである。 即ち、本発明はかつらベースの製造法に係り、
かつらベースの製造は、雄型にかつらベース塗剤
としての合成樹脂溶液を塗布するに際し、雄型上
に加熱して軟化させた合成樹脂ベースをしわやた
るみのない状態で押し付けて固定した後、前記合
成樹脂溶液を塗布することにより行われる。 雄型の成形材料としては、石膏、粘土、セメン
トなどの無機質材料あるいはプラスセメント、エ
ポキシ樹脂、シリコーン、ポリウレタンなどの有
機質材料をいずれも単独または複合して使用する
ことができる。これらの成形材料から成形された
雄型上には、かつらベース塗剤に対して不活性で
あり、適当な延伸性を有する合成樹脂フイルム、
例えば厚さ1.5mm以下、一般には1.5mm〜10μ、好
ましくは500〜100μ程度の厚さを有するポリエチ
レンフイルムを加熱して軟化させた状態でかぶ
せ、ベースを適当に延伸しながらしわやたるみの
ない薄い状態で押し付け、あたかも表面をコーテ
イングしたのと類似の状態とし、その後雄型の下
方部分で輪ゴムその他を用いてかぶせたフイルム
を固定させる。かつらベース塗剤としての合成樹
脂溶液、例えばウレタンプレポリマー溶液の塗布
は、雄型上にかぶせた合成樹脂フイルム上に直接
行なうこともできるが、合成樹脂フイルム上に薄
布地をしわやたるみのない状態でかぶせ、雄型の
下方部分で輪ゴムその他を用いて薄布地を固定し
た後、そこにかつらベース塗剤を塗布してもよ
い。薄布地としては、やはりかつらベース塗剤に
対して不活性である材質の繊維、例えばナイロン
のモノフイラメント、マルチフイラメントまたは
これらのコンジユゲートヤーンなどを編成した薄
布地などが用いられる。 このようにして、雄型上にかつらベース塗剤を
塗布する際に合成樹脂フイルムをかぶせることに
より、次のような利点が得られる。 (1) 例えば、石膏製の雄型の如く、そこに水分が
存在する材質の雄型であつても、水分による悪
影響を受けることなく、ウレタンプレポリマー
などの塗布が可能であり、このことは一般に型
材として広く用いられている廉価な石膏を有効
に使用し得ることを可能とする。 (2) 雄型からのかつらベースの剥離が非常に容易
に行なえるようになり、作業性が著しく向上す
る。 (3) 剥離に際してかつらベース被膜の破損は全く
生ぜず、また粘着または接着によるかつらベー
スの変形もみられない。 (4) 石膏片などの異物がかつらベース中に混入ま
たは付着することが全くなくなり、異物不良が
防止されると共に、検査の手間その他の点での
作業性の向上も図ることができる。 (5) かつらベースは、その内面が平滑になること
により、植毛時の作業性が良くなる。 このように、合成樹脂フイルムをラツピングし
て行われる本発明方法により、各種の性状の点で
すぐれたかつらベースを容易に得ることができ
る。 次に、実施例について本発明の効果を説明す
る。 実施例 1 トランス―1,4―ポリイソプレンシート
(300×350×2mm)を型枠に展張保持し、約80℃
の熱水中で軟化させた後適度に冷却し、両手で頭
部または頭部型に押し当て、冷却硬化する迄約10
分間その状態を維持した後そこからはずし、所定
の頭部形状雌型を製作した。 このようにして得られた雌型中に、水1中に
けん濁させた石膏600gを流し込み、約20分間放
置して、固化した石膏雄型を得る。この際、雌型
中に流し込んだ石膏の中央部に適量の水を入れた
容器を埋め込んだ形で置き、完全に石膏が硬化す
る前にそれを撤去すると、使用する石膏の量が少
くてすむばかりではなく、石膏の硬化を円滑に進
行させることができ、更にその後ではその容器を
逆さに置いて、そこに石膏雄型を嵌装させ、雄型
にかつらベース塗剤を塗布する際の作業台とする
ことができる。 ポリエチレンフイルム(350×350×0.3mm)を
型枠に展張保持し、温風加熱器中で110℃に加熱
し、軟化せしめたものを、素早く前記石膏雄型上
に押し当て、しわやたるみがないように十分に延
伸して雄型に密着させ、あたかも表面をコーテイ
ングしたような状態とした後、雄型の下方部分を
輪ゴムで固定する。 このようにして下準備されたかつらベース雄型
上のポリエチレンフイルム面に、ウレタンプレポ
リマー溶液を必要に応じて塗り重ねた後、エージ
ング、乾燥し、剥離して製品かつらベースを得
る。 比較例 1 実施例1において、ポリエチレンフイルムラツ
ピングを行わずに、シリコーンコーテイングを行
なつた。 実施例 2 実施例1において、石膏雄型の代りにセメント
製の雄型が用いられた。 比較例 2 実施例2において、ポリエチレンフイルムラツ
ピングを行わずに、シリコーンコーテイングを行
なつた。 実施例 3 実施例1において、石膏雄型の代りにエポキシ
樹脂(日曹EPB―17)製の雄型が用いられた。 比較例 3 実施例3において、ポリエチレンフイルムラツ
ピングを行わずに、シリコーンコーテイングを行
なつた。 以上の各実施例および各比較例で得られた結果
は、次の表に示される。なお、比較例3のエポキ
シ樹脂雄型では型が塗剤によつて部分的に溶解
し、事実上かつらベースの成形が不可能であつ
た。
The present invention relates to a method for manufacturing a wig base. More specifically, the present invention relates to a method for producing a wig base, which comprises applying a wig base coating to a male mold. A thermoplastic synthetic resin sheet, such as a trans-1,4-polyisoprene sheet, which can be softened and molded by heating at a relatively low temperature and harden while retaining the molded shape when cooled to room temperature. A female mold is made by heating and pressing it against the head, and this female mold is filled with plaster to form a male mold. A synthetic resin solution as a wig base coating material, such as urethane prepolymer, is applied to the molded male mold. Manufacturing a wig base by applying a solution was disclosed in Japanese Unexamined Patent Application Publication No. 1983-
It is described in Publication No. 116804. However, when the male mold is molded from an inorganic material such as a plaster mold, clay, or cement, the following disadvantages occur. (1) If water is used during molding, aging must be performed for sufficient time to dry and remove the water, and if the water is not completely removed, it may be used as a wig base coating. Not only is the cross-linking reaction of commonly used urethane prepolymers not carried out sufficiently, but the foaming caused by carbon dioxide gas generated by the abnormal reaction causes air bubbles to exist in the wig base, which significantly reduces the strength of the wig base coating. It not only causes the stains to fade, but also causes deterioration of the appearance, such as cloudiness. [Normal reaction] -NCO+-OH→-NHCOO- [Abnormal reaction] -NCO+H 2 O→-NHCOOH -NHCOOH+-NCO→-NHCONH-
+CO 2 ↑ (2) Due to the physical and chemical adhesive strength of the male mold surface, it is generally difficult to peel off the wig base formed there, and in extreme cases, it may not be possible to peel it off, or even if it is peeled off, it may be deformed or damaged. This often results in contamination with gypsum, etc. For this reason, a release agent such as fluororesin or silicone is applied on the male mold in advance to improve the releasability of the wig base from the male mold. As shown in the results, not only does it have little effect on improving mold releasability, but also there are many cases of contamination of foreign matter and generation of air bubbles caused by the male mold material, and it is difficult to prevent the occurrence of defective products. They are also lacking in ability. Instead of inorganic male mold materials that have these drawbacks, it is possible to use positive cement made of epoxy resin and hardening agent, but male molds molded from such organic materials are not only expensive. It does not dissolve or swell in the synthetic resin solution of the wig base paint applied to the surface,
This not only results in mutual welding but also deformation of the male die itself. The object of the present invention is to provide a method for applying a wig base coating to a male mold made of an inorganic or organic material without causing such drawbacks. That is, the present invention relates to a method for manufacturing a wig base,
To manufacture a wig base, when applying a synthetic resin solution as a wig base paint to the male mold, the heated and softened synthetic resin base is pressed onto the male mold without wrinkles or sagging, and then fixed. This is done by applying the synthetic resin solution. As the molding material for the male mold, inorganic materials such as gypsum, clay, and cement, or organic materials such as plus cement, epoxy resin, silicone, and polyurethane can be used alone or in combination. A synthetic resin film that is inert to the wig base coating and has appropriate stretchability is placed on the male die molded from these molding materials.
For example, a polyethylene film with a thickness of 1.5 mm or less, generally 1.5 mm to 10 microns, preferably 500 to 100 microns, is heated and softened and covered, and the base is stretched appropriately to prevent wrinkles or sagging. Press it in a thin state to make it look like the surface is coated, and then fix the covered film on the lower part of the male mold using a rubber band or something like that. A synthetic resin solution as a wig base coating, such as a urethane prepolymer solution, can be applied directly onto the synthetic resin film placed over the male mold, but it is also possible to apply the thin fabric on the synthetic resin film without wrinkles or sagging. After covering the wig in this condition and fixing the thin fabric using a rubber band or the like at the lower part of the male mold, a wig base coating may be applied thereto. As the thin fabric, a thin fabric knitted with fibers of a material that is also inert to the wig base coating, such as nylon monofilament, multifilament, or conjugate yarn thereof, is used. By covering the male mold with a synthetic resin film when applying the wig base paint in this way, the following advantages can be obtained. (1) For example, even if the male mold is made of a material that contains moisture, such as a male mold made of plaster, it is possible to apply urethane prepolymer etc. without being adversely affected by moisture. To make it possible to effectively use inexpensive gypsum, which is generally widely used as a molding material. (2) The wig base can be removed from the male mold very easily, and work efficiency is significantly improved. (3) There is no damage to the wig base coating upon peeling, and no deformation of the wig base due to adhesion or adhesion is observed. (4) Foreign objects such as plaster pieces are completely prevented from getting mixed into or adhering to the wig base, preventing defects due to foreign objects, and improving workability in terms of labor and other aspects of inspection. (5) The smooth inner surface of the wig base improves workability during hair transplantation. As described above, by the method of the present invention, which is carried out by wrapping a synthetic resin film, it is possible to easily obtain a wig base that is excellent in various properties. Next, the effects of the present invention will be explained with reference to Examples. Example 1 A trans-1,4-polyisoprene sheet (300 x 350 x 2 mm) was stretched and held in a formwork at approximately 80°C.
After softening in hot water, cool it down and press it against the head or head mold with both hands for about 10 minutes until it cools and hardens.
After maintaining this state for a minute, it was removed, and a female mold with a predetermined head shape was manufactured. 600 g of gypsum suspended in 1 part of water is poured into the female mold thus obtained and left to stand for about 20 minutes to obtain a solidified male gypsum mold. At this time, if you place a container filled with an appropriate amount of water in the center of the plaster poured into the female mold and remove it before the plaster completely hardens, the amount of plaster used can be reduced. Not only that, but it also allows the plaster to harden smoothly, and after that, the container is placed upside down, the male plaster mold is inserted into it, and the wig base paint is applied to the male mold. It can be used as a stand. A polyethylene film (350 x 350 x 0.3 mm) was stretched and held in a mold, heated to 110°C in a hot air heater to soften it, and then quickly pressed onto the male plaster mold to remove wrinkles and sagging. After fully stretching the male mold to make it stick to the male mold so that the surface is coated, the lower part of the male mold is fixed with a rubber band. A urethane prepolymer solution is coated as necessary on the polyethylene film surface of the male wig base prepared in this way, followed by aging, drying, and peeling to obtain a finished wig base. Comparative Example 1 In Example 1, silicone coating was performed without polyethylene film wrapping. Example 2 In Example 1, a male mold made of cement was used instead of a male plaster mold. Comparative Example 2 In Example 2, silicone coating was performed without polyethylene film wrapping. Example 3 In Example 1, a male mold made of epoxy resin (Nisso EPB-17) was used instead of the male plaster mold. Comparative Example 3 In Example 3, silicone coating was performed without polyethylene film wrapping. The results obtained in each of the above Examples and Comparative Examples are shown in the following table. In addition, in the case of the epoxy resin male mold of Comparative Example 3, the mold was partially dissolved by the coating agent, and it was virtually impossible to mold the wig base.

【表】 物による
不良数
[Table] Number of defects due to items

Claims (1)

【特許請求の範囲】 1 雄型にかつらベース塗剤としての合成樹脂溶
液を塗布するに際し、雄型上に加熱して軟化させ
た合成樹脂フイルムをしわやたるみのない状態で
押し付けた後、前記合成樹脂溶液を塗布すること
を特徴とするかつらベースの製造法。 2 雄型として石膏型が用いられる特許請求の範
囲第1項に記載のかつらベースの製造法。 3 合成樹脂溶液としてウレタンプレポリマー溶
液が用いられる特許請求の範囲第1項記載のかつ
らベースの製造法。 4 合成樹脂フイルムとして厚さ1.5mm以下のポ
リエチレンフイルムが用いられる特許請求の範囲
第1項記載のかつらベースの製造法。 5 合成樹脂フイルム上に直接かつらベース塗剤
が塗布される特許請求の範囲第1項記載のかつら
ベースの製造法。 6 合成樹脂フイルム上に薄布地をしわやたるみ
のない状態でかぶせ、そこにかつらベース塗剤が
塗布される特許請求の範囲第1項記載のかつらベ
ースの製造法。
[Scope of Claims] 1. When applying a synthetic resin solution as a wig base coating to a male mold, after pressing a heated and softened synthetic resin film onto the male mold without wrinkles or sagging, A method for producing a wig base, which is characterized by applying a synthetic resin solution. 2. The method for manufacturing a wig base according to claim 1, wherein a plaster mold is used as the male mold. 3. The method for producing a wig base according to claim 1, wherein a urethane prepolymer solution is used as the synthetic resin solution. 4. The method for manufacturing a wig base according to claim 1, wherein a polyethylene film with a thickness of 1.5 mm or less is used as the synthetic resin film. 5. The method for producing a wig base according to claim 1, wherein the wig base coating agent is applied directly onto the synthetic resin film. 6. The method for producing a wig base according to claim 1, wherein a thin fabric is placed over a synthetic resin film without wrinkles or sagging, and a wig base coating agent is applied thereto.
JP19544981A 1981-12-04 1981-12-04 Production of wig base Granted JPS5898407A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19544981A JPS5898407A (en) 1981-12-04 1981-12-04 Production of wig base

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19544981A JPS5898407A (en) 1981-12-04 1981-12-04 Production of wig base

Publications (2)

Publication Number Publication Date
JPS5898407A JPS5898407A (en) 1983-06-11
JPS6363642B2 true JPS6363642B2 (en) 1988-12-08

Family

ID=16341244

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19544981A Granted JPS5898407A (en) 1981-12-04 1981-12-04 Production of wig base

Country Status (1)

Country Link
JP (1) JPS5898407A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20230031744A (en) * 2021-08-27 2023-03-07 씨틱 디카스탈 컴퍼니 리미티드 Curve fitting method, device and equipment based on drawing tool

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62174516A (en) * 1986-01-29 1987-07-31 Fuji Heavy Ind Ltd Tappet device for car engine
JP4711999B2 (en) * 2007-04-13 2011-06-29 株式会社オティックス Variable valve mechanism

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5066562A (en) * 1973-10-15 1975-06-04
JPS5079568A (en) * 1973-11-16 1975-06-28
DE2543993A1 (en) * 1975-10-02 1977-04-07 Bosch Gmbh Robert BREAKERS FOR DISTRIBUTORS OF COMBUSTION MACHINES
JPS5391973A (en) * 1976-11-16 1978-08-12 Schoeller Tech Papers Production of release paper for pour mold
JPS55116804A (en) * 1979-02-28 1980-09-08 Aderans Kk Production of wick base
JPS5613612A (en) * 1979-07-12 1981-02-10 Sumitomo Electric Industries Method of manufacturing aluminum coated copper wire
JPS6363642A (en) * 1986-09-04 1988-03-22 Mitsui Toatsu Chem Inc Production of polyethylenepolyamine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20230031744A (en) * 2021-08-27 2023-03-07 씨틱 디카스탈 컴퍼니 리미티드 Curve fitting method, device and equipment based on drawing tool

Also Published As

Publication number Publication date
JPS5898407A (en) 1983-06-11

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