JPS6311987B2 - - Google Patents
Info
- Publication number
- JPS6311987B2 JPS6311987B2 JP20815683A JP20815683A JPS6311987B2 JP S6311987 B2 JPS6311987 B2 JP S6311987B2 JP 20815683 A JP20815683 A JP 20815683A JP 20815683 A JP20815683 A JP 20815683A JP S6311987 B2 JPS6311987 B2 JP S6311987B2
- Authority
- JP
- Japan
- Prior art keywords
- heat
- resin
- vinyl chloride
- cardboard
- chloride resin
- 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
- 239000011347 resin Substances 0.000 claims description 66
- 229920005989 resin Polymers 0.000 claims description 66
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 claims description 30
- 239000011111 cardboard Substances 0.000 claims description 21
- 239000000123 paper Substances 0.000 claims description 21
- 230000002093 peripheral effect Effects 0.000 claims description 16
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 description 9
- 238000010438 heat treatment Methods 0.000 description 6
- 230000004927 fusion Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 238000007499 fusion processing Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000011087 paperboard Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000003825 pressing Methods 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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
-
- 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
-
- 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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
- B29C66/133—Fin-type joints, the parts to be joined being flexible
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
- B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
- B29C66/43—Joining a relatively small portion of the surface of said articles
- B29C66/433—Casing-in, i.e. enclosing an element between two sheets by an outlined seam
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
- B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
- B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
- B29C66/81411—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
- B29C66/81421—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave
- B29C66/81423—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave being concave
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
- B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
- B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
- B29C66/81427—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single ridge, e.g. for making a weakening line; comprising a single tooth
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
- B29C66/832—Reciprocating joining or pressing tools
- B29C66/8322—Joining or pressing tools reciprocating along one axis
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/90—Measuring or controlling the joining process
- B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
- B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
- B29C66/9141—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature
- B29C66/91411—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature of the parts to be joined, e.g. the joining process taking the temperature of the parts to be joined into account
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/90—Measuring or controlling the joining process
- B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
- B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
- B29C66/9161—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux
- B29C66/91641—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux the heat or the thermal flux being non-constant over time
- B29C66/91643—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux the heat or the thermal flux being non-constant over time following a heat-time profile
- B29C66/91645—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux the heat or the thermal flux being non-constant over time following a heat-time profile by steps
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/90—Measuring or controlling the joining process
- B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
- B29C66/919—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges
-
- 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
- B29C2793/00—Shaping techniques involving a cutting or machining operation
- B29C2793/0045—Perforating
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
- B29C66/024—Thermal pre-treatments
- B29C66/0242—Heating, or preheating, e.g. drying
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/32—Measures for keeping the burr form under control; Avoiding burr formation; Shaping the burr
- B29C66/328—Leaving the burrs unchanged for providing particular properties to the joint, e.g. as decorative effect
- B29C66/3282—Leaving the burrs unchanged for providing particular properties to the joint, e.g. as decorative effect for reinforcing the joint
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
- B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
- B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
- B29C66/81411—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
- B29C66/81415—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being bevelled
- B29C66/81417—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being bevelled being V-shaped
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Laminated Bodies (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Description
【発明の詳細な説明】
本発明は特にバインダー、フアイルなどの表紙
として用いるのに好適な樹脂被覆紙の新規な製造
方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a novel method for producing resin-coated paper particularly suitable for use as a cover for binders, files, etc.
バインダーやフアイルなどの表紙には、ボール
紙などの厚紙を塩化ビニル樹脂シートで被覆した
樹脂被覆紙が使用されている。 Resin-coated paper, which is made by covering cardboard or other thick paper with a vinyl chloride resin sheet, is used for covers of binders and files.
従来、この樹脂被覆紙は第6〜7図に示すよう
に、厚紙1の上下両面に塩化ビニル樹脂シート
2,3を配置して、下型11上に載置し、上方か
ら上型12を降下させて上型12端部に設けた電
極13により塩化ビニル樹脂シート2,3の周縁
部21,31を熱融着することによつてつくられ
ていた。 Conventionally, this resin-coated paper is produced by placing vinyl chloride resin sheets 2 and 3 on both the upper and lower surfaces of a cardboard 1, placing it on a lower die 11, and then inserting an upper die 12 from above, as shown in FIGS. 6 and 7. It was produced by heat-sealing the peripheral edges 21 and 31 of the vinyl chloride resin sheets 2 and 3 using an electrode 13 that was lowered and provided at the end of the upper mold 12.
この方法による場合、熱融着時、電極13が当
接した部分は、シート2,3の接合面から樹脂が
溶融し、電極13によつて押圧されるため、溶融
した樹脂の一部は樹脂被覆紙の内部側、すなわち
厚紙1の配置されている側に流動する。しかしな
がら、熱融着部の近辺は室温より若干高くなつて
いる程度で、流動してきた樹脂と融着できる程度
には温度が上昇しておらず、そのため、第7図に
示すように、流動してきた樹脂32はそのままの
状態で冷却して塊となり、熱融着部23の近辺2
1a,31aの内面側とは遊離した状態になつて
いる。 In this method, the resin melts from the joining surface of the sheets 2 and 3 and is pressed by the electrode 13 at the part where the electrode 13 contacts during heat fusion, so that part of the melted resin is It flows to the inside of the covering paper, that is, to the side where the cardboard 1 is placed. However, the temperature near the heat-fused area is only slightly higher than room temperature, and the temperature has not risen enough to fuse with the flowing resin. The resin 32 cools as it is, becomes a lump, and forms a lump near the heat-sealed part 23.
It is in a free state from the inner surfaces of 1a and 31a.
ところで、このような用途に使用されている塩
化ビニル樹脂シートは、以前は0.3〜0.4mm程度の
厚さのものが使用されていたが、最近はコスト面
などの関係から、0.05〜0.2mm程度の非常に薄い
ものになつてきており、しかも前記熱融着時に、
熱融着部23の近辺21a,31a、特に近辺2
1aが熱融着部23側に引つ張られて厚さがさら
に薄くなるため、強度が低く、熱融着部23の近
辺21aから破れを生じることがしばしば発生し
た。 By the way, the vinyl chloride resin sheets used for such purposes used to have a thickness of about 0.3 to 0.4 mm, but recently due to cost reasons, the thickness has become about 0.05 to 0.2 mm. It is becoming very thin, and moreover, during the heat fusion process,
The vicinity 21a, 31a of the heat fusion part 23, especially the vicinity 2
Since 1a is pulled toward the heat-sealed portion 23 and its thickness becomes even thinner, the strength is low, and tearing often occurs from the vicinity 21a of the heat-sealed portion 23.
本発明者はそのような事情に鑑み種々研究を重
ねた結果、厚紙の両面に配置した塩化ビニル樹脂
シートの周縁部を熱融着して樹脂被覆紙を製造す
るにあたり、該熱融着部の内周側近辺を予備加熱
するときは、熱融着時に熱融着部の近辺が熱融着
部側に引つ張られて薄くなるのが防止され、かつ
熱融着部から流動してきた樹脂が該熱融着部の近
辺の内面に融着し、その部分の肉厚が厚くなつ
て、強度が増し、前述のような熱融着部近辺の破
れが防止されることを見出し、本発明を完成する
にいたつた。 In view of such circumstances, the present inventor has conducted various studies and found that when producing resin-coated paper by heat-sealing the peripheral edges of vinyl chloride resin sheets placed on both sides of cardboard, the inventors have found that the heat-sealed portion When preheating the area near the inner circumference, it is necessary to prevent the area near the heat-sealed part from becoming thinner due to being pulled towards the heat-sealed part during heat-sealing, and to prevent the resin flowing from the heat-sealed part from becoming thinner. It has been discovered that the inner surface of the heat-sealed part is fused to the inner surface near the heat-sealed part, the thickness of that part becomes thicker, the strength is increased, and the above-mentioned breakage near the heat-sealed part is prevented, and the present invention has been made. I've come to the point where I can complete it.
本発明において、予備加熱は熱融着する部分の
内周側近辺の樹脂温度が70〜90℃となるように行
なうのが好ましい。これは樹脂温度が70℃未満で
は熱融着部から流動してきた樹脂との融着が充分
に行なわれず、また90℃を超えると塩化ビニル樹
脂シートが軟化して塩化ビニル樹脂シートに施し
てあるエンボス加工が崩れてしまうからである。 In the present invention, the preheating is preferably carried out so that the resin temperature near the inner peripheral side of the part to be thermally fused is 70 to 90°C. This is because if the resin temperature is less than 70°C, sufficient fusion with the resin flowing from the heat-sealed part will not occur, and if it exceeds 90°C, the vinyl chloride resin sheet will soften, causing the resin to be applied to the vinyl chloride resin sheet. This is because the embossing will collapse.
予備加熱時間は、加熱温度や塩化ビニル樹脂シ
ートの厚み、さらには塩化ビニル樹脂シートに上
下面から加熱するか、あるいは片面から加熱する
かなどによつても異なるが、通常は4〜15秒間と
するのが好ましい。 The preheating time varies depending on the heating temperature, the thickness of the PVC resin sheet, and whether the PVC resin sheet is heated from the top and bottom or from one side, but is usually 4 to 15 seconds. It is preferable to do so.
予備加熱の実施にあたつては、上面側からのみ
加熱するのが、現有設備との関係上実施しやす
く、また予備加熱用のヒータを直接塩化ビニル樹
脂シートに当接して加熱するよりも、塩化ビニル
樹脂シートから若干離して空気を介して加熱する
方が全体の温度が均一になりやすいので好まし
い。 When performing preheating, it is easier to heat only from the top side due to the existing equipment, and it is also easier to heat the PVC resin sheet than by heating it by directly contacting the heater for preheating with the PVC resin sheet. It is preferable to heat the sheet through air at a distance from the vinyl chloride resin sheet because the overall temperature tends to be uniform.
予備加熱は熱融着する部分の内周側近辺のみ加
熱すれば目的を達し得るが、実施に際しては、前
記のようにヒータを塩化ビニル樹脂シートから若
干離れた位置に配置して加熱するなどの関係もあ
つて、熱融着する部分の内周側近辺のみ選択的に
予備加熱することがむずかしく、該部分とともに
熱融着する部分も同時に予備加熱する方法が採用
される。ただし、熱融着する部分の内周側近辺の
み予備加熱してもよいことはもちろんである。な
お、予備加熱は多少幅広く行なつても実害がない
のと安全性を考慮して通常、熱融着する部分から
内周側へ5〜30mm程度入つたところまで行なわれ
る。 The purpose of preheating can be achieved by heating only the inner circumferential side of the part to be thermally fused, but when carrying out the process, it is necessary to place the heater at a position slightly away from the vinyl chloride resin sheet as described above. For this reason, it is difficult to selectively preheat only the inner peripheral side of the part to be heat-sealed, so a method is adopted in which the part to be heat-sealed is preheated at the same time. However, it is of course possible to preheat only the inner peripheral side of the portion to be thermally fused. Note that preheating is usually carried out to a point about 5 to 30 mm inward from the part to be heat-sealed, considering that there is no actual harm even if the preheating is carried out over a wide range.
次に本発明の実施例を図面とともに説明する。 Next, embodiments of the present invention will be described with reference to the drawings.
まず、本発明に係る樹脂被覆紙についてさきに
説明する。 First, the resin-coated paper according to the present invention will be explained.
第1図は本発明によつて製造された樹脂被覆紙
の一例を示す断面図で、図中、1は厚紙で、本実
施例では厚さ2mmのボール紙が使用されている。
2,3は厚紙1の両面に配置した塩化ビニル樹脂
シートで、この塩化ビニル樹脂シート2,3は厚
紙1より若干大きく、その周縁部21,31が厚
紙1の端部より外方に突出しており、塩化ビニル
樹脂シート2,3の周縁部における接合部が高周
波加熱によつて熱融着され、厚紙1を塩化ビニル
樹脂シート2,3で被覆して樹脂被覆紙がつくら
れている。なお、本実施例において、上側の塩化
ビニル樹脂シート2には厚さ0.15mmのものが使用
され、下側の塩化ビニル樹脂シート3には厚さ
0.2mmのものが使用されている。 FIG. 1 is a sectional view showing an example of resin-coated paper manufactured according to the present invention. In the figure, 1 is cardboard, and in this embodiment, cardboard with a thickness of 2 mm is used.
2 and 3 are vinyl chloride resin sheets placed on both sides of the cardboard 1. The vinyl chloride resin sheets 2 and 3 are slightly larger than the cardboard 1, and their peripheral edges 21 and 31 protrude outward from the ends of the cardboard 1. The joints at the peripheral edges of the vinyl chloride resin sheets 2 and 3 are thermally fused by high frequency heating, and the cardboard 1 is covered with the vinyl chloride resin sheets 2 and 3 to produce resin-coated paper. In this example, the upper vinyl chloride resin sheet 2 has a thickness of 0.15 mm, and the lower vinyl chloride resin sheet 3 has a thickness of 0.15 mm.
A 0.2mm one is used.
この樹脂被覆紙の端部は、第2図に示すよう
に、熱融着部23の内周側近辺21a,31aに
おいて、熱融着時に熱融着部23から流動してき
た樹脂32が熱融着部の近辺21a,31aの内
面と融着し、その部分の厚みが融着前より厚くな
つている。 As shown in FIG. 2, the resin 32 flowing from the heat-sealing portion 23 during heat-sealing is heated at the ends of the resin-coated paper in the vicinity of the inner peripheral side 21a, 31a of the heat-sealing portion 23. It is fused to the inner surface of the areas 21a and 31a near the attachment part, and the thickness of that part is thicker than before fusion.
つぎに上記樹脂被覆紙の製造方法を第3〜5図
に基づいて詳述する。 Next, the method for manufacturing the resin-coated paper will be described in detail with reference to FIGS. 3 to 5.
まず厚紙1の両面にたとえば酢酸ビニル系の接
着剤を塗布し、該接着剤を介して厚紙1の両面に
塩化ビニル樹脂シート2,3を配置したのち、ロ
ーラーなどで厚紙1と塩化ビニル樹脂シート2,
3とを圧着する。この状態で乾燥したのち、第3
図に示すように下型11上に移し、予備加熱用ヒ
ータ14で塩化ビニル樹脂シート2の上方から塩
化ビニル樹脂シート2,3の周縁部の熱融着する
部分およびその内周側近辺(熱融着する部分から
約10mm内周側のところまで)を予備加熱する。 First, a vinyl acetate adhesive, for example, is applied to both sides of the cardboard 1, and the vinyl chloride resin sheets 2 and 3 are placed on both sides of the cardboard 1 via the adhesive. 2,
3 and crimped. After drying in this state, the third
As shown in the figure, the vinyl chloride resin sheet 2 is transferred to the lower mold 11, and the preheating heater 14 is used to heat-seal the portions of the peripheral edges of the vinyl chloride resin sheets 2 and 3 and the vicinity of their inner peripheries (heat-sealed) from above the vinyl chloride resin sheet 2. Preheat the area (approximately 10 mm from the part to be fused to the inner circumference).
予備加熱には200V、800Wのヒータ14を用
い、塩化ビニル樹脂シート2の上方約5cmの位置
から約8秒間加熱する。これによつて塩化ビニル
樹脂シート2,3の予備加熱された部分は温度が
80〜90℃に上昇する。 For preheating, a 200V, 800W heater 14 is used to heat the vinyl chloride resin sheet 2 from a position approximately 5 cm above it for approximately 8 seconds. As a result, the temperature of the preheated parts of the vinyl chloride resin sheets 2 and 3 increases.
The temperature rises to 80-90℃.
つぎに、ヒータ14を引き上げ、第4〜5図に
示すように上方より上型12を下降させ、上側の
塩化ビニル樹脂シート2、厚紙1、下側の塩化ビ
ニル樹脂シート3を圧着しつつ、上型12の端部
に設けた電極13で、塩化ビニル樹脂シート2,
3の周縁部の熱融着する部分を下型11側に押圧
しながら高周波加熱により熱融着する。 Next, the heater 14 is pulled up, and the upper mold 12 is lowered from above as shown in FIGS. 4 and 5, and while pressing the upper vinyl chloride resin sheet 2, the cardboard 1, and the lower vinyl chloride resin sheet 3, PVC resin sheet 2,
The portion of the peripheral edge of No. 3 to be heat-sealed is pressed against the lower mold 11 side and heat-sealed by high-frequency heating.
上記のように、塩化ビニル樹脂シート2,3の
周縁部を熱融着するに際し、熱融着する部分およ
びその内周側近辺を予備加熱することにより、予
備加熱された部分が収縮して厚みを増し引つ張り
がかかつても元の厚さより薄くなることがなくな
るため、従来法による場合のような熱融着時に熱
融着部の近辺が熱融着部側に引つ張られて薄くな
ることがなくなり、また熱融着時に熱融着部から
流動してきた樹脂32は第2図および第5図に示
すように熱融着部23の内周側近辺21a,31
aの内面と融着し、該部分の厚みを増加させ、強
度を増加させるので、得られた樹脂被覆紙は熱融
着部近辺の破損がない耐久性に優れたものとな
る。 As mentioned above, when heat-sealing the peripheral edges of the vinyl chloride resin sheets 2 and 3, by preheating the heat-sealed portion and the vicinity of its inner periphery, the preheated portion shrinks and the thickness increases. Even if the tension is increased, the thickness will not become thinner than the original thickness, so the area near the heat-sealed part will be pulled toward the heat-sealed part during heat-sealing as in the case of conventional methods, making it thinner. Also, the resin 32 flowing from the heat-sealed part during heat-sealing is distributed around the inner peripheral side 21a, 31 of the heat-sealed part 23 as shown in FIGS. 2 and 5.
Since the resin-coated paper is fused to the inner surface of a, increasing the thickness and strength of the portion, the resulting resin-coated paper has excellent durability without damage near the heat-fused portion.
なお、図中、15は上型12の下面に形成した
針で、この針15によつて塩化ビニル樹脂シート
2を突き通し、その微孔から接着剤塗布時に厚紙
1中に泌み込んだ水分を逃がすために設けられた
ものである。なお、微孔は針15を抜き出したあ
とは、収縮して非常に小さくなり、ほとんど見え
なくなり、また塩化ビニル樹脂シート2の強度を
低下させるようなこともない。 In the figure, reference numeral 15 indicates a needle formed on the lower surface of the upper die 12. The needle 15 pierces the vinyl chloride resin sheet 2 and removes moisture seeped into the cardboard 1 during the application of the adhesive through its fine pores. It was designed to let people escape. Note that, after the needle 15 is extracted, the micropores shrink and become very small, almost invisible, and do not reduce the strength of the vinyl chloride resin sheet 2.
なお実施例では厚紙としてボール紙を用いた
が、それに限られることなく、ボール紙以外の板
紙やその他の厚手の紙であつてもよい。 Note that although cardboard is used as the cardboard in the embodiment, the invention is not limited to this, and paperboard other than cardboard or other thick paper may be used.
本発明により製造される樹脂被覆紙は、バイン
ダー、フアイルなどの表紙用として特に好適であ
るが、カバン、バツクなどの小型の包装ケースの
構成材料としても好適に使用され得る。 The resin-coated paper produced according to the present invention is particularly suitable for use as a cover for binders, files, etc., but can also be suitably used as a constituent material for small-sized packaging cases such as bags and backpacks.
第1図は本発明に係る樹脂被覆紙の一例を示す
断面図で、第2図は第1図の部分拡大図である。
第3〜5図は本発明により樹脂被覆紙を製造する
際の部分拡大断面図であり、第6〜7図は従来法
により樹脂被覆紙を製造する際の部分拡大断面図
である。
1……厚紙、2,3……塩化ビニル樹脂シー
ト、21,31……塩化ビニル樹脂シートの周縁
部、23……熱融着部、21a,31a……熱融
着部の内周側近辺、14……予備加熱用ヒータ。
FIG. 1 is a sectional view showing an example of resin-coated paper according to the present invention, and FIG. 2 is a partially enlarged view of FIG. 1.
3 to 5 are partially enlarged sectional views when producing resin-coated paper according to the present invention, and FIGS. 6 to 7 are partially enlarged sectional views when producing resin-coated paper according to the conventional method. 1... Cardboard, 2, 3... Vinyl chloride resin sheet, 21, 31... Peripheral part of vinyl chloride resin sheet, 23... Heat fused part, 21a, 31a... Near the inner peripheral side of the heat fused part , 14... Heater for preliminary heating.
Claims (1)
が厚紙の外方へ突出した塩化ビニル樹脂シートを
配置し、塩化ビニル樹脂シートの周縁部を熱融着
して樹脂被覆紙を製造するにあたり、該熱融着す
る部分の内周側近辺を予備加熱することを特徴と
する樹脂被覆紙の製造方法。 2 熱融着する部分の内周側近辺の樹脂温度が70
〜90℃になるように予備加熱する特許請求の範囲
第1項記載の樹脂被覆紙の製造方法。[Claims] 1. A vinyl chloride resin sheet is placed on both sides of a cardboard sheet, the peripheral edge of which is slightly larger than the cardboard and protrudes outward from the cardboard, and the peripheral edge of the vinyl chloride resin sheet is heat-sealed to cover the resin. A method for producing resin-coated paper, which comprises preheating the inner circumferential side of the heat-sealed portion in producing the paper. 2 The resin temperature near the inner circumference of the part to be heat fused is 70
The method for producing resin-coated paper according to claim 1, wherein the resin-coated paper is preheated to 90°C.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP58208156A JPS60125638A (en) | 1983-11-04 | 1983-11-04 | Preparation of resin-coated paper |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP58208156A JPS60125638A (en) | 1983-11-04 | 1983-11-04 | Preparation of resin-coated paper |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS60125638A JPS60125638A (en) | 1985-07-04 |
JPS6311987B2 true JPS6311987B2 (en) | 1988-03-16 |
Family
ID=16551573
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP58208156A Granted JPS60125638A (en) | 1983-11-04 | 1983-11-04 | Preparation of resin-coated paper |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS60125638A (en) |
-
1983
- 1983-11-04 JP JP58208156A patent/JPS60125638A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS60125638A (en) | 1985-07-04 |
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