JPH06104358B2 - Method for manufacturing ink occlusion type stamp material - Google Patents
Method for manufacturing ink occlusion type stamp materialInfo
- Publication number
- JPH06104358B2 JPH06104358B2 JP60138636A JP13863685A JPH06104358B2 JP H06104358 B2 JPH06104358 B2 JP H06104358B2 JP 60138636 A JP60138636 A JP 60138636A JP 13863685 A JP13863685 A JP 13863685A JP H06104358 B2 JPH06104358 B2 JP H06104358B2
- Authority
- JP
- Japan
- Prior art keywords
- raw material
- reinforcing sheet
- sheet
- stamp
- stamping
- 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
- 239000000463 material Substances 0.000 title claims description 62
- 238000004519 manufacturing process Methods 0.000 title claims description 10
- 238000000034 method Methods 0.000 title description 15
- 230000003014 reinforcing effect Effects 0.000 claims description 40
- 239000002994 raw material Substances 0.000 claims description 34
- 239000000843 powder Substances 0.000 claims description 28
- 238000000465 moulding Methods 0.000 claims description 23
- 238000010438 heat treatment Methods 0.000 claims description 20
- 239000000835 fiber Substances 0.000 claims description 16
- 229920005992 thermoplastic resin Polymers 0.000 claims description 15
- 238000005245 sintering Methods 0.000 claims description 12
- 239000004744 fabric Substances 0.000 claims description 9
- 229920001971 elastomer Polymers 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- 239000005060 rubber Substances 0.000 claims description 7
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 5
- 239000004636 vulcanized rubber Substances 0.000 claims description 5
- 238000002844 melting Methods 0.000 claims description 2
- 230000008018 melting Effects 0.000 claims description 2
- 238000005507 spraying Methods 0.000 claims 1
- 238000003860 storage Methods 0.000 description 13
- 239000002759 woven fabric Substances 0.000 description 12
- 239000000853 adhesive Substances 0.000 description 10
- 230000001070 adhesive effect Effects 0.000 description 10
- 239000002245 particle Substances 0.000 description 7
- 238000002156 mixing Methods 0.000 description 5
- 229920000459 Nitrile rubber Polymers 0.000 description 3
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 238000002203 pretreatment Methods 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 239000001913 cellulose Substances 0.000 description 2
- 229920002678 cellulose Polymers 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000011812 mixed powder Substances 0.000 description 2
- 239000004014 plasticizer Substances 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- 229920003051 synthetic elastomer Polymers 0.000 description 2
- 239000005061 synthetic rubber Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 210000004027 cell Anatomy 0.000 description 1
- 210000005056 cell body Anatomy 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 229920006283 heat-resistant synthetic fiber Polymers 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
- 230000003313 weakening effect Effects 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
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/18—Cold vulcanisation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
- B41C3/00—Reproduction or duplicating of printing formes
- B41C3/06—Reproduction or duplicating of printing formes to produce printing blocks from plastics
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Thermal Sciences (AREA)
- Manufacture Or Reproduction Of Printing Formes (AREA)
- Printing Plates And Materials Therefor (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は、主として回転式印判等に於いて使用するイン
キ吸蔵型印判材の製造方法に関するものである。Description: TECHNICAL FIELD The present invention relates to a method for producing an ink occlusion type stamp material mainly used in rotary stamps and the like.
（従来の技術） 日付印等の所謂回転式印判に於いては、印判の回転時の
張力による印判の伸びを防止してその回転を円滑なもの
とするために、インキ吸蔵型印判の裏面に織布や樹脂シ
ート等を固着一体化した構成の印判材が広く利用されて
いる。(Prior Art) In so-called rotary type stamps such as date stamps, in order to prevent the stretch of the stamp due to the tension during rotation of the stamp and make the rotation smooth, A stamp material having a structure in which a woven cloth, a resin sheet, and the like are fixed and integrated is widely used.
ところで、従前のこの種インキ吸蔵型の印判材は、通常
次の（イ）、（ロ）及び（ハ）の如き方法により製作さ
れている。By the way, the conventional ink occlusion type stamp material is usually manufactured by the following methods (a), (b) and (c).
（イ） 裏面側に印字を形成した多孔性のインキ吸蔵型
印判材シートを別途に形成し、該印判材シートの裏面側
へ織布等を接着剤によつて固着する方法（特開昭55-118
82号等）。(A) A method in which a porous ink storage type stamp material sheet having a print formed on the back side is separately formed, and a woven cloth or the like is fixed to the back side of the stamp material sheet with an adhesive (JP-A-55) -118
No. 82).
（ロ） 印字面を形成する成型金型内へ、発泡させたポ
リ塩化ビニールのゲル化物等の粉末から成る原材料を充
填し、その上方に織布等を載置したあと、加熱しながら
織布の上方より上型を用いて加圧することにより、原料
粉末の焼結成型並びに焼結成型した印判材シートと織布
の固着を同時に行なう方法（特開昭55-11882号等）。(B) A raw material consisting of powder such as foamed polyvinyl chloride gel is filled in a molding die that forms the printed surface, and a woven cloth or the like is placed on top of it, and then the woven cloth is heated. A method of simultaneously sintering and molding the raw material powder and fixing the sinter-molded stamp material sheet and the woven cloth by pressing from above the upper part using an upper mold (JP-A-55-11882).
（ハ） 印字面を形成する成型金型内へ、未加硫ゴム中
に可溶性塩分等を練り込んだ印材原料を充填し、印材原
料の上方に織布等を載置したあと、加熱しながら織布上
方より上型を用いて加圧することにより、印判原料の加
硫・成型並びに成型シートと織布の焼付固着を同時に行
ない、最後に温水等へ浸漬して可溶性塩分を溶出し、多
孔性印判材シートとする方法。(C) Filling the printing material that forms the printing surface with the raw material for printing, which is obtained by kneading soluble salts in unvulcanized rubber, and placing a woven cloth, etc. above the raw material for printing, while heating. By pressing from above the woven fabric using the upper mold, vulcanization and molding of the stamp material and baking and fixing of the molded sheet and woven fabric can be performed simultaneously, and finally, immersing in warm water etc. to dissolve soluble salts and porosity. How to make a stamp sheet.
しかし乍ら、従前のこの種インキ吸蔵型印判材の製造方
法には、未だ解決すべき多くの問題が残されている。例
えば、前記（イ）の方法に於いては、インキによつて接
着材が侵され易く、印判材シートから織布が使用中に簡
単に剥離するという難点がある。However, many problems still to be solved still remain in the conventional method for producing the ink storage type stamp material of this kind. For example, the method (a) has a drawback that the adhesive is easily attacked by the ink and the woven fabric is easily separated from the stamp material sheet during use.
前記（ロ）の方法に於いては、加圧加熱を十分にして織
布と印判材シートとの固着を強力なものにすると、多孔
性印判材シートの気泡率や弾性が喪失され、インキ吸蔵
性能が減少する。逆に、印判材シートのインキ吸蔵性能
を高めるため、加圧・加熱を弱めると印判材シートと織
布との間の固着力が低下し、使用中に簡単に織布が剥離
するという難点がある。In the above method (b), when the woven cloth and the stamp material sheet are strongly bonded to each other by sufficiently applying pressure and heat, the porous stamp material sheet loses its bubble content and elasticity, and ink is absorbed. Performance is reduced. On the other hand, in order to improve the ink occlusion performance of the stamp material sheet, weakening the pressure and heating reduces the adhesive force between the stamp material sheet and the woven fabric, and the woven fabric easily peels off during use. is there.
更に、前記（ハ）の方法に於いては、織布に固着したゴ
ム層内の可溶性塩分が温水内への浸漬時に溶出されるた
め、印判材シート内の吸蔵インキが織布を通してその裏
面側へ漏出することになり、回転印等へは適用し難いと
いう問題がある。Further, in the above method (c), since the soluble salt content in the rubber layer adhered to the woven fabric is eluted during the immersion in the warm water, the occluded ink in the stamp material sheet passes through the woven fabric and its back side There is a problem that it is difficult to apply it to a rotation mark etc.
（発明が解決しようとする問題点） 本発明は、多孔性インキ吸蔵型印判材シートの裏面側に
織布等を固着した型式の印判材の製造に於ける上述の如
き問題、即ち（イ）接着剤を利用するものは、織布等の
剥離を起し易く印判材の寿命が短かいこと、（ロ）加圧
・加熱により織布等を固着する方法にあつては、インキ
の吸蔵性能が低下や固着力の低下が避けられないこと、
（ハ）加熱・加圧により織布等を固着したあと、多孔化
処理を行なう方法にあつては、インキが印判材の裏面に
まで透過し、回転印判には使用し難いこと等の問題を解
決せんとするものであり、インキ吸蔵能力が高く、且つ
多孔性印判材シートと補強用シート材間の固着力も高く
て使用中に両者の剥離を生せず、しかも印判材の裏面側
へインキが漏れないようにした多孔性インキ吸蔵型印判
材の製造方法を提供するものである。(Problems to be Solved by the Invention) The present invention has the above-mentioned problems in the production of a stamp material of a type in which a woven cloth or the like is fixed to the back surface side of a porous ink storage stamp sheet, that is, (a) The one that uses an adhesive is that the woven fabric is easily peeled off and the stamp material has a short life. (B) In the method of fixing the woven fabric by pressing and heating, the ink storage performance Is inevitable and the adhesive strength is unavoidable.
(C) In the method of performing the porosity treatment after fixing the woven fabric etc. by heating and pressurizing, there is a problem that the ink penetrates to the back surface of the stamp material and it is difficult to use for rotary stamping. The solution is to solve the problem, the ink storage capacity is high, and the adhesive force between the porous stamp material sheet and the reinforcing sheet material is also high so that they do not separate during use, and to the back side of the stamp material. It is intended to provide a method for producing a porous ink storage type stamp material in which ink does not leak.
（問題点を解決するための手段） 本発明は、織布から成る補強用シート材の上に、ゴム弾
性を有する熱可塑性樹脂粉末若しくは熱可塑性樹脂粉末
と加硫ゴム粉末の混合物と、全重量の約45％以下の重量
の粉末状繊維との混合物から成る印判用原材料を適宜量
散布し、受型と押型との間で加熱・圧縮することにより
補強用シート材に印判用原材料を溶融焼付けする補強用
シートの固着用予備処理工程Ｂと；成型用金型内に充填
した前記印判用原原料の上方に、前記固着用予備処理を
施した補強用シートを積み重ね、押型により前記固着用
予備処理工程Ｂに於ける加熱温度及び圧縮圧力よりも低
い温度及び圧力下に於いて、前記印判用原材料及び補強
用シートを加熱・圧縮する焼結成型工程Ｃとを発明の基
本構成とするものである。(Means for Solving the Problems) The present invention provides a reinforcing sheet material made of a woven fabric, a thermoplastic resin powder having rubber elasticity or a mixture of a thermoplastic resin powder and a vulcanized rubber powder, and a total weight thereof. About 45% or less of the weight of powdered fiber is mixed with the raw material for stamping, and the raw material for stamping is melt-baked on the reinforcing sheet by heating and compressing between the receiving die and the die. Pre-treatment step B for fixing the reinforcing sheet; stacking the reinforcing sheet having been subjected to the fixing pre-treatment above the raw material for stamping filled in the molding die, and pre-fixing by the die. A sintering molding step C in which the stamping raw material and the reinforcing sheet are heated and compressed at a temperature and pressure lower than the heating temperature and the compression pressure in the processing step B is a basic constitution of the invention. is there.
（作用） 補強用シート材に印判用原材料か若しくはこれと同質の
材料を極く薄く溶融焼付けすることにより、補強用シー
ト材の織目内やシート材を構成する繊維内へ溶融した印
判用原材料が強固に充填固着され、シート材の通気孔が
遮断される。(Function) The stamping raw material melted into the texture of the reinforcing sheet material or the fibers constituting the sheet material by melting and baking the stamping raw material or a material of the same quality as the reinforcing sheet material to an extremely thin thickness. Is firmly filled and fixed, and the ventilation holes of the sheet material are blocked.
その後、前記当該補強用シート材を成型金型内へ充填し
た印判用原材料の上面に乗せ、両者を一体として加熱・
圧縮することにより、予かじめ補強用シート材に固着せ
しめた印判用原材料の表層部は容易に溶融し、金型内の
溶融原材料と極めて容易に且つ強固に固着一体化する。
即ち、印判用原材料の焼結成型温度や圧力を特に上昇し
なくても、補強用シート材は焼結成型された印判材シー
トへ強固に固着されることになり、印判材シートの気孔
率が低下してそのインキ吸蔵能力が悪化することはな
い。After that, the reinforcing sheet material is placed on the upper surface of the stamping raw material filled in the molding die, and both are integrally heated.
By compressing, the surface layer portion of the stamping raw material fixed to the pre-soldering reinforcing sheet material is easily melted and extremely easily and firmly fixed and integrated with the molten raw material in the mold.
That is, the reinforcing sheet material is firmly fixed to the sinter-molded stamp material sheet even if the sinter-molding temperature and pressure of the stamp material are not particularly increased, and the porosity of the stamp sheet is increased. It does not decrease and the ink storage capacity does not deteriorate.
（実施例） 第１図は、本発明に係るインキ吸蔵型印判材の製造工程
図であり、図に於いてＡは印判用原材料の調合工程、Ｂ
は補強用シートの固着用予備処理工程、Ｃは焼結成型工
程である。(Embodiment) FIG. 1 is a manufacturing process drawing of an ink storage type stamp material according to the present invention, in which A is a step of preparing a stamping raw material, and B is a step.
Is a pretreatment process for fixing the reinforcing sheet, and C is a sintering molding process.
印判用原材料の調合工程Ａに於いては、熱可塑性樹脂粉
末１若しくは熱可塑性樹脂粉末１と加硫ゴム粉末２の混
合物に、所定量の粉末状繊維３が混合される。In the step A of preparing a stamping raw material, a predetermined amount of powdered fiber 3 is mixed with the thermoplastic resin powder 1 or a mixture of the thermoplastic resin powder 1 and the vulcanized rubber powder 2.
前記熱可塑性樹脂粉末１としては、軟質塩化ビニール粉
末、スチレン・ブタジエン共重合体粉末、エチレン・酢
酸ビニール・塩化ビニール共重合体粉末等があるが、ゴ
ム弾性を有する熱可塑性樹脂であれば、如何なる樹脂で
あっても使用が可能である。尚、熱可塑性樹脂粉末１に
は、熱可塑性樹脂に通常使用される可塑剤、充填剤、安
定剤等が適量加えられていることは勿論である。Examples of the thermoplastic resin powder 1 include soft vinyl chloride powder, styrene / butadiene copolymer powder, ethylene / vinyl acetate / vinyl chloride copolymer powder, and any thermoplastic resin having rubber elasticity can be used. Even a resin can be used. It is needless to say that the thermoplastic resin powder 1 is added with an appropriate amount of a plasticizer, a filler, a stabilizer and the like which are usually used in thermoplastic resins.
また、前記加硫ゴム粉末２としては、加硫済みで適量の
加硫剤や安定剤を含んだNBR（ニトリル・ブタジエンラ
バー）やSBR（合成ゴム）等の粉末がある。又、熱可塑
性樹脂粉末１や加硫ゴム粉末２の粒子径は、少なくとも
80メツシユの篩を通過したもの、出来得れば200メツシ
ユの篩を通過したものが望ましい。Examples of the vulcanized rubber powder 2 include powders such as NBR (nitrile-butadiene rubber) and SBR (synthetic rubber) that have been vulcanized and contain appropriate amounts of vulcanizing agents and stabilizers. The particle size of the thermoplastic resin powder 1 and the vulcanized rubber powder 2 is at least
Those that have passed through an 80 mesh screen, and if possible, those that have passed through a 200 mesh screen, are desirable.
一方、前記粉末状繊維３としては、平均粒径が40μｍ〜
120μｍ位いの結晶セルロース等が最も適しているが、
粉末状繊維であれば如何なる材質のものであってもよい
ことは勿論である。又、粉末状繊維３の混合量は、混合
粉体全重量の略45％以下の範囲で自由に選択することが
でき、所望の気泡率に応じてその混合量が決定される。
例えば気泡率を60％とする場合には、平均粒径が120μ
ｍの粉末状繊維３の混合量を約40重量％に選定してい
る。尚、粉末状繊維３の混合量を混合粉体全重量の略45
％以下の範囲内とするのは、多孔性ゴム印材の機械的強
度の関係からであり、粉末状繊維３の混合量を45重量％
以上とした場合には、最終製品である印材が極めて脆く
なり、実用上に支障を生ずるからである。On the other hand, the powdery fibers 3 have an average particle diameter of 40 μm
Crystalline cellulose of about 120 μm is the most suitable,
Needless to say, any material may be used as long as it is a powdery fiber. Further, the mixing amount of the powdery fibers 3 can be freely selected within the range of approximately 45% or less of the total weight of the mixed powder, and the mixing amount is determined according to the desired bubble ratio.
For example, if the bubble rate is 60%, the average particle size is 120μ.
The amount of the powdered fibers 3 of m is selected to be about 40% by weight. In addition, the mixing amount of the powdered fibers 3 is about 45 of the total weight of the mixed powder.
% Or less is within the range of the mechanical strength of the porous rubber stamp material, and the mixing amount of the powdered fibers 3 is 45% by weight.
This is because in the case of the above, the printing material as the final product becomes extremely brittle, which causes trouble in practical use.
本実施例に於いては、下記の（ａ）及び（ｂ）の混合物
を印判用原材料としている。In this embodiment, the following mixture of (a) and (b) is used as the stamping raw material.
（ａ） 加硫剤及び充填剤を含んだ加硫済みのNBR粉末
（200メツシユの篩を通過させたもの）100重量部と塩化
ビニールペーストレジン粉末50重量部と可塑剤10部の混
合物。(A) A mixture of 100 parts by weight of vulcanized NBR powder (passed through a 200 mesh screen) containing a vulcanizing agent and a filler, 50 parts by weight of vinyl chloride paste resin powder, and 10 parts of a plasticizer.
（ｂ） 平均粒径が120μｍの粉末状結晶セルロース20
部。(B) Powdered crystalline cellulose 20 having an average particle size of 120 μm
Department.
次に、補強用シートの固着用予備処理工程Ｂに於いて、
補強用シート４に後述する多孔性インキ吸蔵型印判材シ
ートとの固着を行なうための処理が行なわれる。尚、前
記補強用シート４には、天然繊維、耐熱性の合成繊維、
金属繊維、炭素繊維及びこれ等の組合せ繊維を用いた織
布が最適である。Next, in the pretreatment step B for fixing the reinforcing sheet,
The reinforcing sheet 4 is subjected to a treatment for fixing it to a porous ink storage type stamp material sheet described later. The reinforcing sheet 4 includes natural fibers, heat-resistant synthetic fibers,
Woven fabrics using metal fibers, carbon fibers, and combinations thereof are most suitable.
当該工程Ｂでは、補強用シート４を平板状の受型の上に
載置し、その上に前記印判用原材料A0を適宜量散布した
後、150〜170℃、10〜15kg/cm2の加熱・加圧条件下に於
いて、押型により前記補強用シート４の上方より40〜10
0秒間圧縮し、載置した印判用原材料A0を焼付溶融させ
ると共に、溶融した原材料A0をシート４の織目内へ溶融
固着させる。尚、補強用シート４の上方に散布する印判
原材料A0の量は、加熱・圧縮した後の補強用シートB0の
厚さが特に増加しない程度の量でよい。又、処理された
補強用シートB0は、その織目並びに繊維内へ印判用原材
料A0が溶融充填され、その通気性は略完全に遮断され
る。In the step B, the reinforcing sheet 4 is placed on a flat plate-shaped receiving mold, and the stamping raw material A 0 is sprinkled on the reinforcing sheet 4 in an appropriate amount, and then 150 to 170 ° C., 10 to 15 kg / cm 2 Under the conditions of heating and pressurizing, 40 to 10 from above the reinforcing sheet 4 by a die.
The stamping raw material A 0 is compressed for 0 seconds to bake and melt the placed stamping raw material A 0, and at the same time, the melted raw material A 0 is melted and fixed in the texture of the sheet 4. The amount of the stamping material A 0 scattered on the reinforcing sheet 4 may be such that the thickness of the reinforcing sheet B 0 after heating and compression is not particularly increased. Further, the treated reinforcing sheet B 0 is melt-filled with the stamping raw material A 0 into the texture and the fibers, and the air permeability thereof is almost completely cut off.
前記焼結成型工程Ｃに於いては、先ず所定の成型金型５
内に前記印判用原材料A0が充填され、次にその上に前記
固着用予備処理済みの補強用シートB0を載せたあと、押
型６を用いて加熱・加圧し、印判用原材料A0の焼結成型
並びに焼結成型された印判材シートと補強用シートB0の
溶融固着が行なわれる。In the sintering molding step C, first, a predetermined molding die 5
The stamping raw material A 0 is filled in the inside, and then the reinforcing pretreated fixing sheet B 0 is placed on the stamping raw material A 0 . The sinter molding and the sinter-molded stamp material sheet and the reinforcing sheet B 0 are fused and fixed.
当該焼結成型工程Ｃに於ける加熱温度は120〜150℃、加
圧力は５〜10Kg/cm2、加圧時間は２〜５分間位いが最適
であり、厚さ0.15〜3mm程度の多孔性インキ吸蔵型印判
材が形成される。即ち、印判用原材料A0を所定の成型金
型内に充填し、加圧及び加熱によつて焼結成型すること
により、均一な連泡を有する多孔性印材５が形成され
る。これは、熱可塑性樹脂の焼結体自体が有する空隙と
粉末状繊維自体が有する気孔とが連続的につながるため
であり、完全な均一連泡体が形成されることになる。焼
結成型工程Ｃに於ける加熱温度と加熱時間は、使用する
熱可塑性樹脂粉末粒子の表面軟化温度や粒子径によつて
夫々異なるが、熱可塑性樹脂粉末の粒子表面の局部的融
着結合が全体に均等に行なわれる程度の温度並びに時間
でよい。例えば、使用する熱可塑性樹脂粉末が軟質塩化
ビニール粉末であり、これにゴム粉末を加えた混合物に
粉末状繊維を混合した場合には、加熱温度が約140℃、
加熱時間が３分位いとなる。また、焼結成型工程Ｃに於
ける印判用原材料A0の圧縮は、圧縮率が6/10〜8/10にな
るように選定されている。In the sintering and molding step C, the heating temperature is 120 to 150 ° C., the applied pressure is 5 to 10 kg / cm 2 , and the pressurizing time is 2 to 5 minutes. Optimally, the thickness is about 0.15 to 3 mm. A printing material for occluding ink is formed. That is, the stamping raw material A 0 is filled in a predetermined molding die and sintered and molded by pressurization and heating to form the porous stamp material 5 having uniform open cells. This is because the voids of the sintered body of the thermoplastic resin itself and the pores of the powdery fiber itself are continuously connected, so that a complete uniform open cell body is formed. The heating temperature and heating time in the sinter molding step C differ depending on the surface softening temperature and the particle diameter of the thermoplastic resin powder particles used, but the local fusion bonding of the thermoplastic resin powder particles does not occur. The temperature and time may be such that they are uniformly applied to the whole. For example, the thermoplastic resin powder used is soft vinyl chloride powder, and when powdered fibers are mixed in a mixture obtained by adding rubber powder to this, the heating temperature is about 140 ° C.,
The heating time is about 3 minutes. Further, the compression of the stamping raw material A 0 in the sintering molding step C is selected so that the compression rate is 6/10 to 8/10.
一方、補強用シートB0に予かじめ溶融固着された印判用
原材料A0は、焼結成型時の加熱によつて再度溶融され、
焼結成型された印判材シートに溶融固着する。焼結成型
工程Ｃに於ける加熱・加圧条件は、前述の如く120〜150
℃、５〜10Kg/cm2であり、固着用予備処理工程（Ｂ）に
於ける加熱・加圧条件よりも夫々低温・低圧である。し
かし、予かじめ印判用原材料A0が固着用予備処理工程Ｂ
に於いて補強用シート４に溶融固着されているため、焼
結成型工程Ｃに於いては、印判用原材料A0同志の溶融固
着さえ行なわれれば十分であり、固着用予備処理工程Ｂ
に於ける如く、高温・高圧の加熱・圧縮条件でなくと
も、印判材シートと補強用シートB0との間に強力な固着
力が得られることになる。On the other hand, the stamping raw material A 0 that has been pre-fused and melt-fixed to the reinforcing sheet B 0 is melted again by heating during sintering molding,
It melts and adheres to the sinter-molded stamp sheet. The heating / pressurizing conditions in the sintering molding process C are 120 to 150 as described above.
° C., a 5 to 10 kg / cm 2, a respective low-pressure than at the heat and pressure conditions to anchoring pretreatment step (B). However, the raw material A 0 for pre-stamping is used for the pretreatment step B for fixing.
Since it is melted and fixed to the reinforcing sheet 4 in the above, in the sintering and molding step C, it is sufficient to melt and bond the stamping raw materials A 0 together.
As described above, a strong fixing force can be obtained between the stamp material sheet and the reinforcing sheet B 0 even under conditions of high temperature / high pressure heating / compression.
焼結成型した適度な印材の大きさに裁断し、その夫々に
予かじめ準備したインキを含浸させると、印判材C0の総
重量の約70重量％のインキが吸蔵された。従前の製法即
ち、補強用シート４に固着用予備処理を施すことなく
に、印判用原材料A0の焼結成型時に直接これと一体的に
固着する場合に比較して、インキ吸蔵量が約1.3〜1.5倍
に増加する。When the ink was cut into a suitable size of sinter-molded printing material and each of them was impregnated with the prepared ink, about 70% by weight of the total weight of the printing material C 0 was occluded. Compared with the conventional manufacturing method, that is, when the reinforcing sheet 4 is directly fixed integrally with the stamping raw material A 0 without being subjected to fixing pretreatment, the ink storage amount is about 1.3. ~ 1.5 times increase.
また、印判材シートと補強用シートB0との固着力も極め
て高く、前記従前の製法の場合と同等か若しくはそれ以
上の固着力が得られる。Further, the adhesive force between the stamp material sheet and the reinforcing sheet B 0 is also extremely high, and an adhesive force equal to or higher than that in the case of the above-mentioned conventional manufacturing method can be obtained.
尚、本発明により製造した印判材C0は、所謂インキ自給
式の回転印判のみならず、スタンプパツド用のインキ吸
蔵型印判にも使用することができることは勿論である。Of course, the stamp material C 0 manufactured according to the present invention can be used not only for a so-called ink self-contained rotary stamp but also for an ink occlusion type stamp for a stamp pad.
（発明の効果） 本発明に於いては、先ず補強用シート４に印判用原材料
又はこれと同質の物質を焼付ける固着用予備処理を行な
い、該予備処理を施した補強用シートB0を焼結成型工程
時に印判材シートと固着一体化する構成としているた
め、印判用原材料の焼結成型に適した比較的低い加熱・
加圧条件下に於いても、焼結成型された印判材シートと
補強用シートB0との間に高い固着力が得られる。その結
果、印判材のインキ吸蔵性能が、印判材シートと補強用
シートB0との固着力を高めるために犠牲になる様なこと
が全くなく、高いインキ吸蔵性能と高い補強用シート固
着力とを兼ね備えた優れた印判材を得ることができる。(Effects of the Invention) In the present invention, first, the reinforcing sheet 4 is pre-treated for fixing by baking the stamping raw material or a substance of the same quality, and the reinforcing sheet B 0 subjected to the pre-treatment is baked. Since it is configured to be fixedly integrated with the stamp material sheet during the binding molding process, relatively low heating that is suitable for sintering molding of stamp material
Even under pressure, a high fixing force can be obtained between the sinter-molded stamp material sheet and the reinforcing sheet B 0 . As a result, the ink occlusion performance of the stamp material is not sacrificed to increase the adhesive force between the stamp sheet and the reinforcing sheet B 0, and the high ink occlusion performance and the high reinforcing sheet adhesive force are It is possible to obtain an excellent stamp material having both of the following.
また、粉末状繊維を混合することにより、均一な気孔径
と気孔分布を有し、しかも適度な弾性と機械的強度を備
えた印材を簡単且つ確実に得ることができる。その結
果、インキ吸蔵量が大幅に高まつて連続捺印回数が増加
すると共に、印面文字の崩れや収縮、変形等も防止さ
れ、優れた実用的効用を有する印材を製造することがで
きる。Further, by mixing the powdery fibers, it is possible to easily and surely obtain a printing material having a uniform pore diameter and pore distribution and having appropriate elasticity and mechanical strength. As a result, the ink storage amount is significantly increased, the number of times of continuous printing is increased, and the stamp characters are prevented from collapsing, shrinking, deforming, etc., and it is possible to manufacture a printing material having an excellent practical effect.
図面は、本発明に係るインキ吸蔵型印判材の製造工程図
である。 Ａ……印判用原材料の調合工程 Ｂ……補強用シートの固着用予備処理工程 Ｃ……焼結成型工程 A0……印判用原材料 B0……予備処理済みの補強用シート C0……インキ吸蔵型印判材The drawings are manufacturing process diagrams of the ink storage type stamp material according to the present invention. A: Preparation process for stamping material B ... Pretreatment process for fixing reinforcing sheet C ... Sintering molding process A 0 ... Stamping material B 0 ... Pretreatment reinforcing sheet C 0 ... Ink storage type stamp material
Claims (1)
弾性を有する熱可塑性樹脂粉末若しくは熱可塑性樹脂粉
末と加硫ゴム粉末の混合物と、全重量の約45％以下の重
量の粉末状繊維との混合物から成る印判用原材料を適宜
量散布し、受型と押型との間で加熱・圧縮することによ
り補強用シート材に印判用原材料を溶融焼付けする補強
用シートの固着用予備処理工程（Ｂ）と成型用金型内に
充填した前記印判用原材料の上方に、前記固着用予備処
理を施した補強用シートを積み重ね、押型により前記固
着用予備処理工程（Ｂ）に於ける加熱温度及び圧縮圧力
よりも低い温度及び圧力下に於いて、前記印判用原材料
及び補強用シートを加熱・圧縮する焼結成型工程（Ｃ）
とより構成したインキ吸蔵型印判材の製造方法。1. A reinforcing sheet material made of a woven cloth, and a thermoplastic resin powder having rubber elasticity or a mixture of a thermoplastic resin powder and a vulcanized rubber powder, and a powder having a weight of about 45% or less of the total weight. Pretreatment for fixing the reinforcing sheet by melting and baking the stamping raw material on the reinforcing sheet material by spraying an appropriate amount of the stamping raw material consisting of a mixture with filamentous fibers and heating and compressing between the receiving die and the die. In step (B) and above the stamping raw material filled in the molding die, the reinforcing pretreatment sheet for fixing is stacked and heated in the fixing pretreatment step (B) by pressing. Sintering molding step (C) of heating and compressing the stamping raw material and the reinforcing sheet at a temperature and pressure lower than the temperature and compression pressure
And a method of manufacturing an ink occlusion type stamp material constituted by
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60138636A JPH06104358B2 (en) | 1985-06-24 | 1985-06-24 | Method for manufacturing ink occlusion type stamp material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60138636A JPH06104358B2 (en) | 1985-06-24 | 1985-06-24 | Method for manufacturing ink occlusion type stamp material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61295041A JPS61295041A (en) | 1986-12-25 |
| JPH06104358B2 true JPH06104358B2 (en) | 1994-12-21 |
Family
ID=15226669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60138636A Expired - Lifetime JPH06104358B2 (en) | 1985-06-24 | 1985-06-24 | Method for manufacturing ink occlusion type stamp material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06104358B2 (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5713428A (en) * | 1980-06-28 | 1982-01-23 | Hosiden Electronics Co Ltd | Color liquid crystal display element |
| JPS5939458B2 (en) * | 1981-05-18 | 1984-09-22 | 富士化学紙工業株式会社 | Manufacturing method of ink holding porous body |
| JPS5814300A (en) * | 1981-07-17 | 1983-01-27 | 日本電気株式会社 | Random event monitoring/measuring system |
| JPS5830154A (en) * | 1981-08-17 | 1983-02-22 | Toshiba Corp | Fixed memory semiconductor device and manufacture thereof |
-
1985
- 1985-06-24 JP JP60138636A patent/JPH06104358B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61295041A (en) | 1986-12-25 |
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