JPH01127342A - Bend processing method for decorative sheet - Google Patents
Bend processing method for decorative sheetInfo
- Publication number
- JPH01127342A JPH01127342A JP62285955A JP28595587A JPH01127342A JP H01127342 A JPH01127342 A JP H01127342A JP 62285955 A JP62285955 A JP 62285955A JP 28595587 A JP28595587 A JP 28595587A JP H01127342 A JPH01127342 A JP H01127342A
- Authority
- JP
- Japan
- Prior art keywords
- decorative sheet
- poval
- decorative board
- aqueous solution
- bending
- 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.)
- Granted
Links
- 238000003672 processing method Methods 0.000 title description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 claims abstract description 20
- 238000005452 bending Methods 0.000 claims abstract description 19
- 239000004744 fabric Substances 0.000 claims abstract description 19
- 239000007864 aqueous solution Substances 0.000 claims abstract description 16
- 229920000877 Melamine resin Polymers 0.000 claims abstract description 13
- 239000000835 fiber Substances 0.000 claims abstract description 12
- 239000011162 core material Substances 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 11
- 239000002131 composite material Substances 0.000 claims abstract description 10
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 claims description 10
- 239000011521 glass Substances 0.000 claims description 3
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 2
- IMROMDMJAWUWLK-UHFFFAOYSA-N Ethenol Chemical compound OC=C IMROMDMJAWUWLK-UHFFFAOYSA-N 0.000 abstract description 19
- 238000000576 coating method Methods 0.000 abstract description 8
- 239000011248 coating agent Substances 0.000 abstract description 7
- 238000010438 heat treatment Methods 0.000 abstract description 6
- 239000002023 wood Substances 0.000 abstract description 4
- 239000004640 Melamine resin Substances 0.000 abstract description 3
- 238000006116 polymerization reaction Methods 0.000 abstract description 3
- 239000002344 surface layer Substances 0.000 abstract description 3
- 239000002518 antifoaming agent Substances 0.000 abstract description 2
- 238000001035 drying Methods 0.000 abstract description 2
- 239000003365 glass fiber Substances 0.000 abstract description 2
- 239000002655 kraft paper Substances 0.000 abstract description 2
- 239000010410 layer Substances 0.000 abstract description 2
- 239000006082 mold release agent Substances 0.000 abstract description 2
- 239000005011 phenolic resin Substances 0.000 abstract description 2
- 238000003825 pressing Methods 0.000 abstract description 2
- 239000004094 surface-active agent Substances 0.000 abstract description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 abstract 1
- 239000004902 Softening Agent Substances 0.000 abstract 1
- 238000010030 laminating Methods 0.000 abstract 1
- 229920001568 phenolic resin Polymers 0.000 abstract 1
- 239000010408 film Substances 0.000 description 11
- 239000000853 adhesive Substances 0.000 description 7
- 230000001070 adhesive effect Effects 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 229920005989 resin Polymers 0.000 description 6
- 239000011347 resin Substances 0.000 description 6
- 239000011253 protective coating Substances 0.000 description 4
- 229920001971 elastomer Polymers 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011120 plywood Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- 239000004641 Diallyl-phthalate Substances 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- QUDWYFHPNIMBFC-UHFFFAOYSA-N bis(prop-2-enyl) benzene-1,2-dicarboxylate Chemical compound C=CCOC(=O)C1=CC=CC=C1C(=O)OCC=C QUDWYFHPNIMBFC-UHFFFAOYSA-N 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 239000007888 film coating Substances 0.000 description 1
- 238000009501 film coating Methods 0.000 description 1
- 239000012210 heat-resistant fiber Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920005749 polyurethane resin Polymers 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
- B29C63/02—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using sheet or web-like material
- B29C63/04—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using sheet or web-like material by folding, winding, bending or the like
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Laminated Bodies (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
本発明は、耐熱性の塗膜とクロスとの複合材で化粧板表
面を被覆して加熱加圧する化粧板の曲げ加工方法に関す
る。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a method for bending a decorative board, in which the surface of the decorative board is coated with a composite material of a heat-resistant coating film and a cloth, and then heated and pressed.
〈従来技術と問題点〉
メラミン化粧板などの熱硬化性樹脂化粧板は、表面化粧
材として多分野に利用されているが、高度な加工品とし
て曲げ加工品があり、カウンター、手摺、流し台、洗面
化粧台などの表面化粧材として利用されている。従来の
化粧板の曲げ加工法としては、曲げ加工部表面を熱変形
温度（１５０〜２００°Ｃ）まで加熱されるため、表面
が曲げ加工機によシすシきずが生じたり、長時間加熱の
場合には焦げて変色又は脹れが生じたプして化粧板の生
命ともいうべき表面外観を損ねた。そこで化粧板表面に
保護被膜又はフィルムを施こし熱圧曲面加工していた。<Prior art and problems> Thermosetting resin decorative boards such as melamine decorative boards are used in many fields as decorative surface materials, but there are highly processed products that can be bent, such as counters, handrails, sinks, etc. It is used as a decorative surface material for bathroom vanities, etc. In the conventional bending method for decorative boards, the surface of the bent part is heated to a heat deformation temperature (150 to 200°C), which may cause scratches on the surface due to the bending machine, or may cause long-term heating. In this case, the surface appearance, which is the life of the decorative board, was damaged due to burning, discoloration, or swelling. Therefore, a protective coating or film was applied to the surface of the decorative board and a heat-pressure curved surface was processed.
他方、表面保護被膜又はフィルムに要求される性能とし
ては、適切な付着力を有し、使用後に剥がす際には剥が
し易いという一見矛盾する性能が要求される。従来の表
面保護被膜塗料としては、酢ビー塩ビ共重合体溶液、ポ
リウレタン樹脂溶液など低重合度の樹脂を有機溶剤に溶
解したタイプ、ポリビニルアル；−ル（ポパール）水溶
液などを塗布乾燥して被膜を形成したシ、これらの樹脂
からなるフィルムを粘着剤で貼合せていた。しかし、酢
酸ビニル、塩化ビニルなどの熱可塑性樹脂を塗布して形
成した皮膜又はフィルムは耐熱性に乏しく、メラミン化
粧板を曲面加工するに要する熱変形温度まで加熱される
と溶融又は軟化して使用できなかった。また、耐熱性の
よいナイロンなどのフィルムは密着性が悪いので、アク
リル系やゴム系などの粘着剤を介して貼合せねばならず
、粘着剤の耐熱性の悪さから実用化されていない。その
点、ポバールは融点が２３０℃と耐熱性は良く水溶液と
して塗布可能のため常温で接着加工するメラミン化粧板
の表面保護被覆として使用されている。しかし、ポバー
ル水溶液は低樹脂分高粘度の状態で塗布されるため気泡
を含んだ状態で薄い皮膜を形成し易く、曲げ加工時に破
れたりする他に加熱曲げ加工の際、化粧板の曲げ加工の
歪による割れを防止する効果はなく、また冷却後の皮膜
は柔軟性に欠は剥離する時に破れたりして剥離作業が困
難であった。On the other hand, the surface protective coating or film is required to have appropriate adhesion and be easy to peel off after use, which are seemingly contradictory properties. Conventional surface protective film coatings include acetic acid-vinyl chloride copolymer solution, polyurethane resin solution, and other types in which low polymerization degree resins are dissolved in organic solvents, polyvinyl alcohol (popal) aqueous solution, etc., which are applied and dried to form a film. In order to form a film, films made of these resins were pasted together with an adhesive. However, coatings or films formed by coating thermoplastic resins such as vinyl acetate and vinyl chloride have poor heat resistance, and melt or soften when heated to the heat distortion temperature required to curve melamine decorative boards. could not. In addition, films made of nylon or the like, which have good heat resistance, have poor adhesion and must be bonded together using an acrylic or rubber adhesive, and are not put into practical use due to the poor heat resistance of the adhesive. In this regard, Poval has a melting point of 230° C. and has good heat resistance and can be applied as an aqueous solution, so it is used as a surface protective coating for melamine decorative boards that are bonded at room temperature. However, since the POVAL aqueous solution is applied in a state of low resin content and high viscosity, it tends to form a thin film containing bubbles, which can cause breakage during bending, as well as damage to the bending of decorative boards during heat bending. It was not effective in preventing cracking due to strain, and the film after cooling lacked flexibility and would break during peeling, making peeling work difficult.
〈発明の目的〉
本発明の目的は、耐熱性皮膜を形成するポバール水溶液
を化粧板の表面保護被膜塗料として用いて、前記問題点
を解決する化粧板の曲げ加工方法を提供するととくある
。<Object of the Invention> The object of the present invention is to provide a method for bending a decorative board that solves the above-mentioned problems by using a poval aqueous solution that forms a heat-resistant film as a surface protective coating coating for the decorative board.
〈発明の開示〉
本発明は、化粧板表面にポバール水溶液と繊維クロスと
の複合材を被覆して、該被覆面より加熱加圧して、化粧
板を芯材に曲げ接着加工する化粧板の曲げ加工方法であ
る。<Disclosure of the Invention> The present invention provides a method for bending a decorative board in which the surface of the decorative board is coated with a composite material of a poval aqueous solution and fiber cloth, and the decorative board is bent and bonded to a core material by applying heat and pressure from the coated surface. It is a processing method.
本発明で使用に供される化粧板（１）としては、メラミ
ン化粧板、ジアリルフタレート化粧板、ポリエステル化
粧板などの厚さ０．２〜２．０圏の熱硬化性樹脂化粧板
が適用され、このうちでも、銘木を薄くスライスした突
板にメラミン系樹脂を含浸した表面層とクラフト紙など
にフェノール系樹脂を含浸した裏面層とを積層して熱圧
一体止した厚さ０．２〜２．０期の突板メラミン化粧板
では、その効果が顕著に表われる。ポバール水溶液（２
）とは、市販の完全ケン化ないしは部分ケン化物からな
る比較的低重合度品を２〜３０％水溶液として、必要に
応じて、柔軟剤、消泡剤、離型剤等の界面活性剤や改質
用樹脂を添加して、ロールコータ−や７０−コーターな
どで塗布可能な粘度に調整される。As the decorative board (1) used in the present invention, a thermosetting resin decorative board with a thickness of 0.2 to 2.0 mm, such as a melamine decorative board, diallyl phthalate decorative board, or polyester decorative board, is applicable. Among these, a surface layer made of thinly sliced veneer of precious wood impregnated with melamine resin and a back layer made of kraft paper impregnated with phenol resin are laminated and bonded together by heat and pressure to a thickness of 0.2 to 2. This effect is noticeable in melamine decorative veneer boards at stage 0. Poval aqueous solution (2
) is a 2 to 30% aqueous solution of a commercially available completely saponified or partially saponified product with a relatively low degree of polymerization, and if necessary, a surfactant such as a softener, an antifoaming agent, and a mold release agent. A modifying resin is added to adjust the viscosity to a level that allows coating with a roll coater, 70-coater, or the like.
被覆材となる繊維クロス（３）としては、天然又は合成
繊維からなる耐熱性の繊維で、不織布又は織布からなる
厚さ０．０５〜１．０ｆｉのクロスが使用でき、このう
ちでもガラス繊維からなる厚さ０．２〜０．５鱈のメッ
シェ状のクロスが塗布面へのなじみ性、曲げ加工時の熱
伝導性、耐熱性、引剥性などの点で最適である。芯材（
４）としては、木材、合板、パーチクルボードなどの基
材を組付けて凸面加工部又は凹面加工部を有するカウン
ターや流し台甲板となる芯材をいう。また、化粧板裏面
及び芯材の接惣面にはゴム系又は合成樹脂系などの接着
剤（５）が塗布されている。次に工程順に説明すると、
化粧板（１）表面にポバール（２）水溶液を塗布し、繊
維クロス（３）を付着し乾燥して複合材として被覆する
か、または、化粧板（１）表面に繊維クロス（３）を被
って、ポバール（２）水溶液を滴下塗布し乾燥して複合
材として被覆する。次にシーズヒーターの如き加熱装置
（６）で該被覆面を１００〜２００℃に加熱して、圧締
機（７）で該被覆クロス（３）を介して化粧板（１）を
芯材（４）に曲げ接着加工する。その後、クロス（３）
を剥がして取除き、ポバール（２）も拭き取り除くこと
により、本来の化粧板表面からなる曲げ加工製品が得ら
れる。As the fiber cloth (3) serving as the covering material, heat-resistant fibers made of natural or synthetic fibers, non-woven fabrics or woven fabrics with a thickness of 0.05 to 1.0 fi can be used, and among these, glass fiber A mesh-like cloth with a thickness of 0.2 to 0.5 is optimal in terms of conformability to the coated surface, thermal conductivity during bending, heat resistance, peelability, etc. Core material (
4) refers to a core material that is assembled with base materials such as wood, plywood, particle board, etc. to form a counter or sink deck that has a convex or concave surface. Furthermore, a rubber-based or synthetic resin-based adhesive (5) is applied to the back surface of the decorative board and the contact surface of the core material. Next, I will explain the process in order.
Either apply an aqueous solution of Poval (2) to the surface of the decorative board (1), adhere the fiber cloth (3) and dry it to cover it as a composite material, or cover the surface of the decorative board (1) with the fiber cloth (3). Then, an aqueous solution of Poval (2) is applied dropwise and dried to coat the composite material. Next, the coated surface is heated to 100 to 200°C using a heating device (6) such as a sheathed heater, and the decorative board (1) is applied to the core material ( 4) Bending and gluing. Then cross (3)
By peeling off and removing the poval (2), a bent product consisting of the original decorative board surface can be obtained.
〈発明の作用効果〉
本発明では、熱圧締される化粧板表面に、耐熱性の優れ
たポバールが水分を含んだ状態で、かつ繊維クロスと複
合化された状態で曲げ加工されるので、曲げ加工機によ
るすりきすを生ぜず、長時間加熱の場合でも焦げや変色
又は脹れが生じ難い。<Operations and Effects of the Invention> In the present invention, poval, which has excellent heat resistance, is bent on the surface of the decorative board to be heat-pressed in a state in which it contains moisture and in a state in which it is composited with fiber cloth. It does not produce scratches due to bending machines, and is unlikely to burn, discolor, or swell even when heated for a long time.
したがって加熱温度をより高くすることができて、化粧
板の熱による可塑化、及び化粧板自体の曲げ加工時の歪
の均一化が°進み、曲げ加工性が向上して、曲率を小さ
くすることができる。殊に、突板メラミン化粧板の如く
、木目による繊維方向により強度差があり、かつ曲げ加
工がし難いメラミン樹脂を表面層とする化粧板において
は、本発明法が従来法に比べて著しい効果が認められる
。Therefore, the heating temperature can be made higher, and the plasticization of the decorative board due to heat and the uniformity of distortion during bending of the decorative board itself progresses, improving bending workability and reducing the curvature. Can be done. In particular, for decorative boards such as veneer melamine decorative boards, which have a surface layer made of melamine resin, which has a strength difference depending on the fiber direction due to the wood grain and is difficult to bend, the method of the present invention is significantly more effective than conventional methods. Is recognized.
次に本発明を実施例により説明する。Next, the present invention will be explained by examples.
実施例１
厚さ０．６ ｒｍの突板メラミン化粧板の曲げ加工部分
に、固形分１２％のポバール水溶液をフローコーターで
約１００ｆ／Ｆ／の割合で塗布し、厚さ０、３ ｍのメ
ツシュ状のガラスクロスをのせて、熱風で乾燥して複合
材で化粧板表面を被覆した。次に該化粧板裏面と端部を
牛後９Ｈに凸状加工した厚さ１Ｂ鱈合板からなる芯材の
接着面にそれぞれゴム系接着剤を塗布乾燥して接触させ
て、シーズヒーターで被覆面を約１７５℃に加熱し、ハ
ンドローラーで加圧して曲面状の芯材に化粧板を曲げ接
着加工した。室温に冷却後、被覆複合材を剥がし、表面
に付着していた残存ポバールを温水で拭き取り除くこと
により、曲げ加工部の化粧板表面が良好な仕上りである
ことを確認した。Example 1 A poval aqueous solution with a solid content of 12% was applied at a rate of about 100 f/F/ to the bent part of a 0.6 rm thick veneer decorative melamine board using a flow coater to form a mesh with a thickness of 0.3 m. A piece of glass cloth was placed on the board, dried with hot air, and the surface of the decorative board was covered with a composite material. Next, a rubber adhesive is applied to the adhesive surface of the core material made of 1B cod plywood, which has been processed into a convex shape of 9H on the back side and end of the decorative board, respectively. After drying, the coated surface is brought into contact with was heated to about 175°C and pressed with a hand roller to bend and bond the decorative board to the curved core material. After cooling to room temperature, the covering composite material was peeled off and the remaining poval adhering to the surface was wiped off with warm water to confirm that the decorative board surface at the bent portion had a good finish.
実施例２
実施例１と同様の材料を用いて、突板メラミン化粧板の
曲げ加工部分にガラスクロスをのせて、ポバール水溶液
をクロス表面に滴下塗布乾燥して複合材を化粧板表面に
被覆した以外は同様に曲げ接着加工して、良好な仕上り
品であることを確認した。Example 2 The same materials as in Example 1 were used, except that a glass cloth was placed on the bent part of the veneered melamine decorative board, and a poval aqueous solution was applied dropwise to the cloth surface and dried to coat the composite material on the decorative board surface. was similarly bent and bonded and confirmed to be a good finished product.
比較例１
実施例１と同様の材料を用いて、突板メラミン化粧板曲
げ加工部分にポバール水溶液のみを塗布して被膜を形成
させた以外は同様に曲げ接着加工したが、曲げ加工部の
突板導管部に割れが多数生じて、良好な外観が得られな
かりた。Comparative Example 1 Using the same material as in Example 1, bending and bonding was performed in the same manner except that only a poval aqueous solution was applied to the bent portion of the veneer melamine decorative board to form a film, but the veneer conduit in the bent portion was Many cracks occurred in the parts, and a good appearance could not be obtained.
第１図は本発明の１実施例を示す側断面図を示す。
１・・・化粧板 ２・・・ポバール ３・・・繊維ク
ロス４・・・芯材 ５・・・接着剤 ６・・・加
熱装置７・・・圧締機
特許出願人 アイカニ業株式会社FIG. 1 shows a side sectional view showing one embodiment of the present invention. 1... Decorative board 2... Poval 3... Fiber cloth 4... Core material 5... Adhesive 6... Heating device 7... Pressing machine patent applicant Aikani Gyo Co., Ltd.
Claims (1)
ロスとの複合材を被覆して、該被覆面より加熱加圧して
、化粧板を芯材に曲げ接着加工することを特徴とする化
粧板の曲げ加工方法。 ２、繊維クロスがガラスクロスである特許請求の範囲第
１項記載の化粧板の曲げ加工方法。 ３、化粧板が、突板メラミン化粧板である特許請求の範
囲第１項または第２項記載の化粧板の曲げ加工方法。[Claims] 1. A composite material of a polyvinyl alcohol aqueous solution and fiber cloth is coated on the surface of the decorative board, and the coated surface is heated and pressurized to bend and bond the decorative board to the core material. A method for bending decorative boards. 2. The method for bending a decorative board according to claim 1, wherein the fiber cloth is glass cloth. 3. The method for bending a decorative board according to claim 1 or 2, wherein the decorative board is a veneer melamine decorative board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62285955A JPH06373B2 (en) | 1987-11-12 | 1987-11-12 | Bending method for decorative boards |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62285955A JPH06373B2 (en) | 1987-11-12 | 1987-11-12 | Bending method for decorative boards |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01127342A true JPH01127342A (en) | 1989-05-19 |
| JPH06373B2 JPH06373B2 (en) | 1994-01-05 |
Family
ID=17698120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62285955A Expired - Lifetime JPH06373B2 (en) | 1987-11-12 | 1987-11-12 | Bending method for decorative boards |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06373B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1049387C (en) * | 1993-11-15 | 2000-02-16 | 大原纸器工厂股份有限公司 | Making method for high hardness regenerated kraft block |
-
1987
- 1987-11-12 JP JP62285955A patent/JPH06373B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1049387C (en) * | 1993-11-15 | 2000-02-16 | 大原纸器工厂股份有限公司 | Making method for high hardness regenerated kraft block |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06373B2 (en) | 1994-01-05 |
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