JPS639598Y2 - - Google Patents
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- Publication number
- JPS639598Y2 JPS639598Y2 JP1981008154U JP815481U JPS639598Y2 JP S639598 Y2 JPS639598 Y2 JP S639598Y2 JP 1981008154 U JP1981008154 U JP 1981008154U JP 815481 U JP815481 U JP 815481U JP S639598 Y2 JPS639598 Y2 JP S639598Y2
- Authority
- JP
- Japan
- Prior art keywords
- fiber layer
- fiber
- heat
- resistant
- layer made
- 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
Links
- 239000000835 fiber Substances 0.000 claims description 96
- 239000000463 material Substances 0.000 claims description 23
- 239000004760 aramid Substances 0.000 claims description 18
- 229920003235 aromatic polyamide Polymers 0.000 claims description 18
- 239000012210 heat-resistant fiber Substances 0.000 claims description 13
- 238000000465 moulding Methods 0.000 claims description 10
- 238000002844 melting Methods 0.000 claims description 7
- 230000008018 melting Effects 0.000 claims description 7
- 239000004744 fabric Substances 0.000 claims description 5
- 238000010304 firing Methods 0.000 claims 1
- 239000010410 layer Substances 0.000 description 59
- 239000011230 binding agent Substances 0.000 description 7
- 239000004677 Nylon Substances 0.000 description 5
- 229920001778 nylon Polymers 0.000 description 5
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 4
- 229920001568 phenolic resin Polymers 0.000 description 4
- 239000005011 phenolic resin Substances 0.000 description 4
- 239000011521 glass Substances 0.000 description 3
- 239000011241 protective layer Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 229920005549 butyl rubber Polymers 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000004985 diamines Chemical class 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 229920006283 heat-resistant synthetic fiber Polymers 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Description
【考案の詳細な説明】
本考案は、主として合成樹脂積層板に使用され
る高温高圧成型プレス用クツシヨン材に関する。[Detailed Description of the Invention] The present invention relates to a cushion material for high-temperature and high-pressure molding presses, which is mainly used for synthetic resin laminates.
現在、たとえばフエノール樹脂積層板は、160
〜180℃、圧力150Kg／cm2、加熱時間80分間、冷却
時間40分間、エポキシ樹脂積層板は、170〜180
℃、圧力40〜80Kg／cm2、加熱時間90分間、冷却時
間30分間というような高温高圧の条件下で成型プ
レスを行なつて製造されている。 Currently, for example, phenolic resin laminates have a
~180℃, pressure 150Kg/cm 2 , heating time 80 minutes, cooling time 40 minutes, epoxy resin laminate: 170~180℃
It is manufactured by performing a molding press under high temperature and high pressure conditions such as ℃, pressure of 40 to 80 kg/cm 2 , heating time of 90 minutes, and cooling time of 30 minutes.
上記した合成樹脂積層板の成型プレスに使用さ
れるクツシヨン材として、従来一般に不織布、ゴ
ム、ガラスクロス等の単一材料からなるものと、
主としてこれらを利用した複合材料からなるもの
等種々のものが用いられており、それらの表面に
は天然紙、合成紙、金属箔等の保護層が設けられ
ている。 Conventionally, the cushion materials used in the molding press of the synthetic resin laminates described above are generally made of a single material such as non-woven fabric, rubber, glass cloth, etc.
Various materials such as those made of composite materials using these materials are mainly used, and their surfaces are provided with a protective layer of natural paper, synthetic paper, metal foil, or the like.
しかしながら、これら従来品は、繰返しの使用
により、前記保護層が破れたり剥離してしまうと
いう問題がある上に、クツシヨン材本体より繊維
くずやガラスクロスの粉末等が飛散して鏡面板や
熱板に付着するという問題がある。 However, with these conventional products, there is a problem that the protective layer tears or peels off due to repeated use, and fiber scraps and glass cloth powder are scattered from the cushion material itself, resulting in mirror-like plates and hot plates. There is a problem that it sticks to.
本考案者は上記した現況に鑑みて鋭意検討した
結果、クツシヨン材本体の表面に保護層を設ける
という解決手段を断念し、すぐれた耐熱性を有す
る耐熱性芳香族ポリアミド繊維よりなる第１繊維
層と耐熱性繊維よりなる第２繊維層とを結着一体
化することにより、上記した問題点が一挙に解決
されることを見出し、本考案を完成した。 As a result of intensive study in view of the above-mentioned current situation, the present inventor abandoned the solution of providing a protective layer on the surface of the cushion material body, and decided to create a first fiber layer made of heat-resistant aromatic polyamide fibers having excellent heat resistance. The inventors have discovered that the above-mentioned problems can be solved all at once by bonding and integrating the fiber layer and the second fiber layer made of heat-resistant fibers, and have completed the present invention.
本考案の要旨は、耐熱性芳香族ポリアミド繊維
よりなる第１繊維層とこれより低融点の耐熱性繊
維よりなる第２繊維層とをニードルパンチ処理し
て多数のニードルパンチ孔を穿設し、該パンチ孔
の内壁に起生した繊維の縦方向の絡合によりこれ
ら両繊維層を結着一体化し、前記第１繊維層の表
面を毛焼きして平滑化し、しかも前記ニードルパ
ンチ孔の内壁に起生した縦方向の第１繊維層の繊
維との絡合している第２繊維層の耐熱性繊維を熱
融着させてこれら第１繊維層と第２繊維層とを一
体化させてなる成型プレス用クツシヨン材であ
る。 The gist of the present invention is that a first fiber layer made of heat-resistant aromatic polyamide fibers and a second fiber layer made of heat-resistant fibers with a lower melting point are needle-punched to form a large number of needle-punched holes. The longitudinal entanglement of the fibers generated on the inner wall of the punch hole binds and integrates these two fiber layers, and the surface of the first fiber layer is smoothed by burning, and the inner wall of the needle punch hole is The first fiber layer and the second fiber layer are integrated by heat-sealing the heat-resistant fibers of the second fiber layer that are entangled with the fibers of the first fiber layer in the vertical direction. This is a cushion material for molding presses.
上記した構成において、耐熱性芳香族ポリアミ
ド繊維よりなる第１繊維層とは、主鎖に芳香族環
を有する二塩基酸および／またはジアミンより合
成されたポリアミド繊維よりなる結合剤を使用し
ていないものをいう。この繊維層の繊維の太さ
は、その表面の平滑性等より鑑みて２デニール位
が好適である。 In the above configuration, the first fiber layer made of heat-resistant aromatic polyamide fiber does not use a binder made of polyamide fiber synthesized from a dibasic acid and/or diamine having an aromatic ring in the main chain. say something The thickness of the fibers in this fiber layer is preferably about 2 denier in view of the smoothness of its surface.
耐熱性繊維よりなる繊維層とは、結合剤を使用
していないポリアミド、ポリエステル等の耐熱性
を有する合成繊維および天然繊維で、上記第１繊
維層の耐熱性芳香族ポリアミド繊維より低融点の
ものをいう。なお、この繊維層は、予めニードル
パンチ処理をしておいてもよい。 The fiber layer made of heat-resistant fibers is a heat-resistant synthetic fiber or natural fiber such as polyamide or polyester that does not use a binder, and has a lower melting point than the heat-resistant aromatic polyamide fiber of the first fiber layer. means. Note that this fiber layer may be subjected to needle punching treatment in advance.
耐熱性芳香族ポリアミド繊維よりなる第１繊維
層と耐熱性繊維よりなる第２繊維層とを一体化し
たクツシヨン材全体の目付は、300〜3500g／m2
の範囲内で適宜選択して使用される。この場合、
300g／m2未満であると、クツシヨン性が極めて
少なくなり熱回りも早くなつてしまうため実用的
でなく、3500g／m2をこえると実用的強度を有す
るクツシヨン材の生産が困難になる等の理由でい
ずれも不適である。 The basis weight of the entire cushion material that integrates the first fiber layer made of heat-resistant aromatic polyamide fiber and the second fiber layer made of heat-resistant fiber is 300 to 3500 g/m 2
be selected and used as appropriate within the range. in this case,
If it is less than 300g/m2, the cushioning properties will be extremely low and the heat will dissipate quickly, making it impractical.If it exceeds 3500g/ m2 , it will be difficult to produce cushioning material with practical strength. Both are inappropriate for a number of reasons.
そして、上記において、耐熱性芳香族ポリアミ
ド繊維よりなる第１繊維層の目付は、50〜
120g／m2の範囲内のものが使用される。この場
合、その目付が50g／m2未満では耐熱性が十分で
なく、120g／m2をこえると耐熱性がさほどあが
らない上にコスト高となり不適である。他方、耐
熱性繊維よりなる第２繊維層の目付は、上記した
クツシヨン材全体の目付と耐熱性芳香族ポリアミ
ドの目付より鑑みて、180〜3450g／m2の範囲の
ものが使用される。 In the above, the first fiber layer made of heat-resistant aromatic polyamide fiber has a basis weight of 50 to 50.
Those within the range of 120g/m 2 are used. In this case, if the basis weight is less than 50 g/m 2 , the heat resistance will not be sufficient, and if it exceeds 120 g/m 2 , the heat resistance will not improve much and the cost will be high, making it unsuitable. On the other hand, the basis weight of the second fiber layer made of heat-resistant fibers is in the range of 180 to 3450 g/m 2 in view of the basis weight of the entire cushion material and the basis weight of the heat-resistant aromatic polyamide.
耐熱性芳香族ポリアミド繊維よりなる第１繊維
層と耐熱性繊維よりなる第２繊維層とをニードル
パンチ処理する場合のニードルパンチ数は、50〜
400本／cm2好ましくは200〜300本／cm2施される。
ニードルパンチ数が多いほど厚み方向の密度が大
きくなりクツシヨン材としての復元性が増加する
が、400本／cm2以上では繊維の切断が極端に増加
し、繊維層自体の機械的強度の低下をきたす。他
方、50本／cm2未満では復元性が悪い。 When the first fiber layer made of heat-resistant aromatic polyamide fiber and the second fiber layer made of heat-resistant fiber are needle punched, the number of needle punches is 50 to 50.
400 lines/ cm2, preferably 200 to 300 lines/ cm2 .
The greater the number of needle punches, the greater the density in the thickness direction, which increases the resilience of the cushion material. However, if the number of needle punches exceeds 400 needles/cm 2 , the amount of fiber breakage increases significantly, resulting in a decrease in the mechanical strength of the fiber layer itself. Come. On the other hand, if it is less than 50 lines/cm 2 , the restorability is poor.
耐熱性芳香族ポリアミド繊維よりなる第１繊維
層の表面を毛焼きする手段としては、ヒートロー
ル、アイロン等を押圧することによりなされる。
この毛焼きする理由は、上記繊維層の表面の毛羽
が鏡面板等へ付着するのを防止するためである。
この毛焼きにより該繊維層の表面は平滑化され
る。それと同時に、これら第１繊維層と第２繊維
層とをニードルパンチ処理し、穿設されたパンチ
孔の内壁に起生した縦方向の耐熱性繊維絡合部分
が、第１繊維層より低融点のため上記ヒートロー
ル等により溶融して耐熱性芳香族ポリアミド繊維
よりなる第１繊維層へ熱融着して一体化される。 The surface of the first fiber layer made of heat-resistant aromatic polyamide fibers is burnt by pressing with a heat roll, iron, or the like.
The reason for this burning is to prevent the fuzz on the surface of the fiber layer from adhering to a mirror plate or the like.
The surface of the fiber layer is smoothed by this burning. At the same time, the first fiber layer and the second fiber layer are needle-punched, and the longitudinal heat-resistant fiber entangled portions generated on the inner wall of the punched holes have a lower melting point than the first fiber layer. Therefore, it is melted by the heat roll or the like and heat-sealed and integrated with the first fiber layer made of heat-resistant aromatic polyamide fibers.
上記した第１繊維層と第２繊維層との組合せ
は、以下に示す実施例で具体的に示されるが、も
ちろんこれに限定されるものではなく、種々の組
合せが考えられ得る。 The above-described combination of the first fiber layer and the second fiber layer is specifically shown in the examples shown below, but of course it is not limited to this, and various combinations can be considered.
本考案は上述の次第で、第１繊維層の表面が毛
焼きされ、平滑化されるので、繊維くずが飛散し
て鏡面板や熱板等へ付着することもない。そし
て、耐熱性繊維よりなる第２繊維層は、耐熱性芳
香族ポリアミド繊維よりなる第１繊維層より低融
点のため、これら第１及び第２繊維層のニードル
パンチ孔の内壁に起生した縦方向の耐熱性繊維絡
合部分が溶融して耐熱性芳香族ポリアミド繊維よ
りなる繊維層へ熱融着し、ニードルパンチ処理と
相まつてより強固にこれら両繊維層が結着一体化
され、両繊維層が剥離することもない。また、こ
れら第１及び第２繊維層を結着一体化しているの
で、クツシヨン性もあり、表面及び内部の耐熱性
もよい等の利点を有する。 According to the present invention, as described above, the surface of the first fiber layer is burnt and smoothed, so that fiber waste will not be scattered and attached to the mirror plate, hot plate, etc. Since the second fiber layer made of heat-resistant fiber has a lower melting point than the first fiber layer made of heat-resistant aromatic polyamide fiber, vertical The entangled portion of the heat-resistant fibers in the direction is melted and heat-sealed to the fiber layer made of heat-resistant aromatic polyamide fibers, and combined with the needle punch treatment, these two fiber layers are more firmly bound and integrated, and both fibers are bonded together. The layers will not peel off. Furthermore, since the first and second fiber layers are bonded and integrated, they have advantages such as good cushioning properties and good heat resistance on the surface and inside.
以下本考案の実施例を添付の図面にもとづき詳
述する。 Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
実施例 １
この実施例は第１図に示されるもので、図中１
は、結合剤を使用していない耐熱性芳香族ポリア
ミド繊維よりなる第１繊維層で、その目付は
100g／m2、太さは２デニールである。２は、結
合剤を使用していない６−６ナイロンよりなる第
２繊維層で、その目付は2400g／m2である。そし
て、第１繊維層１より第２繊維層２へかけて300
本／cm2にニードルパンチ３がなされている。そし
て、このクツシヨン材全体の目付は、2500g／m2
である。次いで、この第１繊維層の表面を375〜
415℃のヒートロールで押圧する。すると、第１
繊維層の表面が毛焼きされて平滑化し、ニードル
パンチ孔内の内壁に起生した縦方向の６−６ナイ
ロン絡合部分が、融点250℃のため溶融し、第１
繊維層１内へ融着して結着一体化したクツシヨン
材が得られる。Example 1 This example is shown in FIG.
is the first fiber layer made of heat-resistant aromatic polyamide fiber without using a binder, and its basis weight is
The weight is 100g/m 2 and the thickness is 2 denier. 2 is a second fiber layer made of 6-6 nylon without using a binder, and its basis weight is 2400 g/m 2 . Then, from the first fiber layer 1 to the second fiber layer 2, 300
A book/cm 2 is needle punched 3 times. The basis weight of this cushion material as a whole is 2500g/m 2
It is. Next, the surface of this first fiber layer is 375~
Press with a heat roll at 415℃. Then, the first
The surface of the fiber layer is burnt and smoothed, and the vertical 6-6 nylon entangled portion that has occurred on the inner wall of the needle punch hole melts due to its melting point of 250°C, and the first
A cushion material is obtained which is fused and integrated into the fiber layer 1.
このようにして得られた本クツシヨン材につい
て、フエノール樹脂積層板の成型プレスに使用し
たところ、300回繰返して使用しても、耐熱性芳
香族ポリアミド繊維よりなる第１繊維層の表面は
破れたり剥離したりせず、繊維くずも全く鏡面板
等へ付着しなかつた。 When this cushion material obtained in this way was used in a molding press for a phenolic resin laminate, even after repeated use 300 times, the surface of the first fiber layer made of heat-resistant aromatic polyamide fibers did not break. There was no peeling, and no fiber waste adhered to the mirror plate, etc.
比較例
ブチルゴムシートの両面にガラスクロスを介し
て結合剤を使用せずに目付450g／m2で300本／cm2
のニードルパンチのなされた６−６ナイロン層を
層着させ、表面に合成紙を接着剤により接着させ
た成型プレス用クツシヨン材をフエノール樹脂積
層板の成型プレスに使用したところ、繰返し使用
200回目で合成紙がクツシヨン材本体より部分剥
離し、使用不能となつた。Comparative example: 300 pieces/cm 2 with a fabric weight of 450 g/m 2 using glass cloth on both sides of a butyl rubber sheet without using a binder.
A molding press cushion material made of a needle-punched 6-6 nylon layer and a synthetic paper bonded to the surface with an adhesive was used in a molding press for a phenolic resin laminate, and it was repeatedly used.
At the 200th time, the synthetic paper partially peeled off from the cushion material, making it unusable.
実施例 ２
この実施例は第２図に示されるもので、図中
１，１は、結合剤を使用していない耐熱性芳香族
ポリアミド繊維よりなる第１繊維層で、その目付
は100g／m2、太さは２デニールである。２は、
これら第１繊維層１，１の中間に位置している結
合剤を使用していない６−６ナイロンよりなる第
２繊維層で、その目付は2300g／m2である。そし
て、本クツシヨン材全体の目付は、2500g／m2で
ある。第１繊維層１から第２繊維層および第１繊
維層へかけて300本／cm2のニードルパンチ３がな
されている。次いで実施例１と同様にしてヒート
ロールで押圧し、第１繊維層１の表面を毛焼きし
て平滑化し、ニードルパンチ孔内の第２繊維層２
の絡合部分が第１繊維層１，１へ融着して結着一
体化してクツシヨン材を得る。Example 2 This example is shown in Figure 2, where 1 and 1 are the first fiber layer made of heat-resistant aromatic polyamide fibers without using a binder, and the basis weight is 100 g/m. 2 , the thickness is 2 denier. 2 is
A second fiber layer made of 6-6 nylon without using a binder is located between the first fiber layers 1, 1 and has a basis weight of 2300 g/ m2 . The basis weight of the entire cushion material is 2500g/m 2 . Needle punches 3 of 300 punches/cm 2 are made from the first fiber layer 1 to the second fiber layer and the first fiber layer. Next, in the same manner as in Example 1, the surface of the first fiber layer 1 is burnt and smoothed by pressing with a heat roll, and the second fiber layer 2 in the needle punched hole is
The intertwined portions are fused to the first fiber layers 1, 1 and integrated to obtain a cushion material.
このようにして得られたクツシヨン材につき、
フエノール樹脂積層板の成型プレスに使用したと
ころ、実施例１とほぼ同様の結果を得た。 For the cushion material obtained in this way,
When used in a press for molding a phenolic resin laminate, almost the same results as in Example 1 were obtained.
図面は本考案の実施例を示したもので、第１図
は実施例１の、第２図は実施例２の、それぞれ縦
断面図である。
１……耐熱性芳香族ポリアミド繊維よりなる第
１繊維層、２……６−６ナイロンよりなる第２繊
維層、３……ニードルパンチ。
The drawings show embodiments of the present invention, and FIG. 1 is a longitudinal sectional view of the first embodiment, and FIG. 2 is a longitudinal sectional view of the second embodiment. 1... First fiber layer made of heat-resistant aromatic polyamide fiber, 2... Second fiber layer made of 6-6 nylon, 3... Needle punch.
Claims (1)
維層とこれより低融点の耐熱性繊維よりなる第
２繊維層とをニードルパンチ処理して多数のニ
ードルパンチ孔を穿設し、該パンチ孔の内壁に
起生した繊維の縦方向の絡合によりこれら両繊
維層を結着一体化し、前記第１繊維層の表面を
毛焼きして平滑化し、しかも前記ニードルパン
チ孔の内壁に起生した縦方向の第１繊維層の繊
維と絡合している第２繊維層の耐熱性繊維を熱
融着させてこれら第１繊維層と第２繊維層とを
一体化させてなることを特徴とする成型プレス
用クツシヨン材。 (2) 耐熱性芳香族ポリアミド繊維よりなる第１繊
維層とこれより低融点の耐熱性繊維よりなる第
２繊維層との結着一体化された繊維層の目付
が、300〜3500g／m2である実用新案登録請求
の範囲第１項記載の成型プレス用クツシヨン
材。[Claims for Utility Model Registration] (1) A first fiber layer made of heat-resistant aromatic polyamide fiber and a second fiber layer made of heat-resistant fiber with a lower melting point are needle-punched to form a large number of needle-punched holes. are formed, the fibers generated on the inner wall of the punched hole are entangled in the vertical direction to bind and integrate both fiber layers, and the surface of the first fiber layer is smoothed by firing, and the needle The heat-resistant fibers of the second fiber layer entangled with the fibers of the first fiber layer in the vertical direction generated on the inner wall of the punched hole are thermally fused to integrate the first fiber layer and the second fiber layer. A cushion material for molding presses, which is characterized by being made into a material. (2) The fabric weight of the first fiber layer made of heat-resistant aromatic polyamide fiber and the second fiber layer made of heat-resistant fiber with a lower melting point is 300 to 3500 g/ m2. A cushion material for a molding press according to claim 1 of the utility model registration claim.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1981008154U JPS639598Y2 (en) | 1981-01-22 | 1981-01-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1981008154U JPS639598Y2 (en) | 1981-01-22 | 1981-01-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57121526U JPS57121526U (en) | 1982-07-28 |
| JPS639598Y2 true JPS639598Y2 (en) | 1988-03-22 |
Family
ID=29806319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1981008154U Expired JPS639598Y2 (en) | 1981-01-22 | 1981-01-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS639598Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006075573A1 (en) * | 2005-01-14 | 2006-07-20 | Yamauchi Corporation | Cushioning material for heat press |
| JP4820920B2 (en) * | 2008-07-15 | 2011-11-24 | イチカワ株式会社 | Heat-resistant cushioning material for molding press |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS568155A (en) * | 1979-06-30 | 1981-01-27 | Ricoh Co Ltd | Display device of copier |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5280069U (en) * | 1975-12-11 | 1977-06-15 |
-
1981
- 1981-01-22 JP JP1981008154U patent/JPS639598Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS568155A (en) * | 1979-06-30 | 1981-01-27 | Ricoh Co Ltd | Display device of copier |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006075573A1 (en) * | 2005-01-14 | 2006-07-20 | Yamauchi Corporation | Cushioning material for heat press |
| JP2006192786A (en) * | 2005-01-14 | 2006-07-27 | Yamauchi Corp | Cushioning material for hot press, its production method, and method for producing laminated plate |
| JP4597685B2 (en) * | 2005-01-14 | 2010-12-15 | ヤマウチ株式会社 | Cushion material for hot press, method for producing the same, and method for producing laminated board |
| JP4820920B2 (en) * | 2008-07-15 | 2011-11-24 | イチカワ株式会社 | Heat-resistant cushioning material for molding press |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57121526U (en) | 1982-07-28 |
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