JPS6021056B2 - Adhesion method for polyethylene terephthalate molded products - Google Patents
Adhesion method for polyethylene terephthalate molded productsInfo
- Publication number
- JPS6021056B2 JPS6021056B2 JP52029906A JP2990677A JPS6021056B2 JP S6021056 B2 JPS6021056 B2 JP S6021056B2 JP 52029906 A JP52029906 A JP 52029906A JP 2990677 A JP2990677 A JP 2990677A JP S6021056 B2 JPS6021056 B2 JP S6021056B2
- Authority
- JP
- Japan
- Prior art keywords
- polyethylene terephthalate
- molded products
- bonding
- melting point
- heat
- 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
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
- 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
- B29C66/73—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/731—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the intensive physical properties of the 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
- 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
- B29C66/70—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
- B29C66/70—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
- B29C66/73—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/731—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the intensive physical properties of the material of the parts to be joined
- B29C66/7311—Thermal properties
- B29C66/73115—Melting point
-
- 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
- B29C66/73—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/737—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined
- B29C66/7377—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined amorphous, semi-crystalline or crystalline
- B29C66/73771—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined amorphous, semi-crystalline or crystalline the to-be-joined area of at least one of the parts to be joined being amorphous
- B29C66/73772—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined amorphous, semi-crystalline or crystalline the to-be-joined area of at least one of the parts to be joined being amorphous the to-be-joined areas of both parts to be joined being amorphous
-
- 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
- B29C66/73—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/739—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/7392—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
- B29C66/73921—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
-
- 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
- B29C66/919—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
- 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
- B29C66/9192—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 in explicit relation to another variable, e.g. temperature diagrams
- B29C66/91921—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 in explicit relation to another variable, e.g. temperature diagrams in explicit relation to another temperature, e.g. to the softening temperature or softening point, to the thermal degradation temperature or to the ambient temperature
-
- 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
- B29C66/9192—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 in explicit relation to another variable, e.g. temperature diagrams
- B29C66/91921—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 in explicit relation to another variable, e.g. temperature diagrams in explicit relation to another temperature, e.g. to the softening temperature or softening point, to the thermal degradation temperature or to the ambient temperature
- B29C66/91931—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 in explicit relation to another variable, e.g. temperature diagrams in explicit relation to another temperature, e.g. to the softening temperature or softening point, to the thermal degradation temperature or to the ambient temperature in explicit relation to the fusion temperature or melting point of the material of one 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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
- B29C65/4805—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
- B29C65/481—Non-reactive adhesives, e.g. physically hardening adhesives
- B29C65/4815—Hot melt adhesives, e.g. thermoplastic adhesives
-
- 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
- B29C66/9192—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 in explicit relation to another variable, e.g. temperature diagrams
- B29C66/91921—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 in explicit relation to another variable, e.g. temperature diagrams in explicit relation to another temperature, e.g. to the softening temperature or softening point, to the thermal degradation temperature or to the ambient temperature
- B29C66/91931—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 in explicit relation to another variable, e.g. temperature diagrams in explicit relation to another temperature, e.g. to the softening temperature or softening point, to the thermal degradation temperature or to the ambient temperature in explicit relation to the fusion temperature or melting point of the material of one of the parts to be joined
- B29C66/91935—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 in explicit relation to another variable, e.g. temperature diagrams in explicit relation to another temperature, e.g. to the softening temperature or softening point, to the thermal degradation temperature or to the ambient temperature in explicit relation to the fusion temperature or melting point of the material of one of the parts to be joined lower than said fusion temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0037—Other properties
- B29K2995/0041—Crystalline
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- High Energy & Nuclear Physics (AREA)
- Plasma & Fusion (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Description
【発明の詳細な説明】
本発明はポリエチレンテレフタレート成形品の接着方法
に関し、詳しくはポリエチレンテレフタレート成形品の
実質的に無定形状態部分同志を該ポリエチレンテレフタ
レ−ト成形品の２次転移点以上融点以下の温度で加熱圧
着する方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for adhering polyethylene terephthalate molded products, and more specifically, the present invention relates to a method for bonding polyethylene terephthalate molded products, and more specifically, a method for bonding substantially amorphous portions of polyethylene terephthalate molded products together to a melting point higher than the secondary transition point of the polyethylene terephthalate molded product. The present invention relates to a method of heat-compression bonding at the following temperatures.
一般に、プラスチックフィルム、シート、容器等の接着
方法は機械的結束法、接着剤法または熱溶融接着法によ
り行われる。Generally, plastic films, sheets, containers, etc. are bonded by mechanical binding, adhesive, or hot melt bonding.
熱溶融接着法はヒートシール、インパルスシール等の外
部加熱あるし・超音波シール、高周波シール等の内部加
熱によりプラスチック素材を溶融軟化させて圧着する方
法である。ポリエチレンテレフタレート成形品の熱溶融
接着法に関して、２藤延伸フィルムなどの成形品の如く
配向結晶化したものはヒートシールなどの外都加熱によ
る熱溶融接着ではシール部の収縮や変形を伴いやすく、
また熱源への融着が生じやすいために困難であり、超音
波シール等の内部加熱による熱溶融接着もその接着性が
十分とはいえない。The thermal melt bonding method is a method of melting and softening plastic materials by external heating such as heat sealing or impulse sealing, or internal heating such as ultrasonic sealing or high frequency sealing, and then press-bonding the plastic materials. Regarding the heat-melt adhesion method for polyethylene terephthalate molded products, for molded products such as two-layer stretched films that are oriented and crystallized, heat-melt adhesion using external heating such as heat sealing tends to cause shrinkage and deformation of the sealed portion.
Further, it is difficult to adhere to a heat source because it tends to be fused, and thermal melt adhesion by internal heating such as ultrasonic sealing cannot be said to have sufficient adhesion.
さらに未延伸フィルムなどの成形品の如く無定形状態の
ものも融点以上の温度では収縮、変形、融着のトラブル
の他に結晶化の進行による融着部の白色不透明化および
機械的強度の低下が生じることから、ポリエチレンテレ
フタレート成形品の熱溶融接着法による接着は非常に困
難である。したがって、ポリヱチレンテレフタレート成
形品同志の熱溶融接着とくにフィルムやシートの単体シ
ールは一般に行われず、低温熱溶融接着が可能なポリエ
チレン、ポリプロピレンなどをコーティングまたはラミ
ネートすることにより熱溶融接着することを可能ならし
めているのが実状である。ポリエチレンテレフタレート
成形品の熱接着法として、特開昭４９一８３７６７号公
報にコロナ放電処理したのち２次転移点以上融点以下の
温度で加熱接着する方法が提案されているが、処理設備
費用および処理工程の煩雑さ等の問題があって実用的で
ない。In addition, when amorphous products such as unstretched films are exposed to temperatures above their melting point, they may shrink, deform, and adhere, as well as crystallization, which causes the fused area to turn white and become opaque, resulting in a decrease in mechanical strength. Because of this, it is extremely difficult to bond polyethylene terephthalate molded products by hot melt bonding. Therefore, heat-melt adhesion between polyethylene terephthalate molded products, especially individual sealing of films and sheets, is not generally performed, but heat-melt bonding is possible by coating or laminating polyethylene, polypropylene, etc., which can be bonded at low temperatures. What makes it so is the reality. As a thermal bonding method for polyethylene terephthalate molded products, a method has been proposed in JP-A-49-183767 in which heat bonding is performed at a temperature above the secondary transition point and below the melting point after corona discharge treatment. It is not practical due to problems such as the complexity of the process.
本発明者らはポリエチレンテレフタレート成形品の接着
を可能ならしめんと鋭意検討を加えた結果、結晶性高分
子物質で高融点しかも明確な融点を示すポリエチレンア
レフタレート成形品が特定の状態下であれば何ら表面処
理を施さなくともその融点以下の温度で熱接着が可能で
あり、しかもその接着性および接着部外観が著しくすぐ
れていることを見いだした。The inventors of the present invention have conducted intensive studies to find ways to bond polyethylene terephthalate molded products, and have found that polyethylene alephthalate molded products, which are crystalline polymers and have a high melting point and a clear melting point, can be bonded under certain conditions. It has been found that thermal adhesion is possible at temperatures below the melting point without any surface treatment, and that the adhesion and appearance of the bonded area are excellent.
すなわち、結晶性ポリエチレンテレフタレート樹脂の実
質的に無定形状態からなる成形品または無定形部分を含
む成形品の無定形状態部分同志を重ね合わせて重ね合わ
せ面を該ポリエチレンテレフタレート成形品の２次転移
点以上融点以下の温度に外部加熱あるいは内部加熱しな
がら圧着することを特徴とするポリエチレンテレフタレ
ート成形品の接着方法である。ポリエチレンテレフタレ
ート成形品はエチレングリコールとテレフタル酸を主成
分とする重縮合体であるポリエチレンテレフタレート樹
脂を主素材とするが、添加剤、可塑剤、着色剤、充填剤
や他のポリマーを含むものであってもよく、また池素材
との複合成形品であってもよい。ポリエチレンテレフタ
レート成形品はフィラメント、フィルム、シート、パイ
プ、ボルト、容器などであり、実質的に無定形状態から
なるあるいは無定形部分を含む成形品である。ポリエチ
レンテレフタレート成形品の接着は成形品の実質的に無
定形部分同志の重ね合わせにより可能となり、単一成形
品または同種もしくは異種成形品間で行われる。That is, the amorphous parts of a molded product made of crystalline polyethylene terephthalate resin in a substantially amorphous state or a molded product containing an amorphous part are superimposed on each other, and the overlapping surfaces are set at the secondary transition point of the polyethylene terephthalate molded product. This is a method for bonding polyethylene terephthalate molded products, which is characterized in that the bonding is carried out while externally or internally heated to a temperature below the melting point. Polyethylene terephthalate molded products are mainly made of polyethylene terephthalate resin, which is a polycondensate of ethylene glycol and terephthalic acid, but they may also contain additives, plasticizers, colorants, fillers, and other polymers. Alternatively, it may be a composite molded product with a pond material. Polyethylene terephthalate molded products are filaments, films, sheets, pipes, bolts, containers, etc., and are substantially amorphous or contain amorphous parts. Adhesion of polyethylene terephthalate moldings is made possible by superposition of the substantially amorphous parts of the moldings, and can be carried out in a single molding or between moldings of the same or different types.
なお、重ね合わせは機械的に加温加圧しながら行っても
よい。次いで重ね合わせ面を該ポリエチレンテレフタレ
ート成形品の２次転移点以上融点以下の温度で加熱圧着
する。２次転移点以下の温度では全く加熱圧着による接
着はなされず、一方、融点以上の温度では成形品の溶融
接着が可能となるが、高温溶融接着による外観不良すな
わち接着部と非接着部の境界における収縮変形、熱板へ
の融着さらにはポリエチレンテレフタレート成形品の特
性である結晶化に起因する白色不透明化が生じる。Note that the overlapping may be performed while mechanically applying heat and pressure. Next, the overlapping surfaces are heat-pressed at a temperature above the secondary transition point and below the melting point of the polyethylene terephthalate molded product. At temperatures below the secondary transition point, no adhesion is achieved by heat-pressure bonding, while at temperatures above the melting point, it is possible to melt-bond the molded products, but the appearance may be poor due to high-temperature melting, i.e., the boundary between the bonded and non-bonded areas. Shrinkage deformation occurs, fusion adhesion to the hot plate, and white opacity due to crystallization, which is a characteristic of polyethylene terephthalate molded products.
さらに外観欠点以外の決定的な欠陥として溶融接着によ
る接着部の結晶化に起因する材質縦化のために十分な接
着強力が得られないことである。ポリエチレンテレフタ
レート成形品の２次転移点以上融点以下で加熱圧着して
成形品を接着するが、加熱温度条件は成形品の厚みおよ
び加熱圧着における圧力と時間などにより適宜選定する
。Furthermore, a decisive defect other than the appearance defect is that sufficient adhesion strength cannot be obtained due to the verticalization of the material due to crystallization of the bonded portion due to melt bonding. The molded products are bonded by heat-pressing at a temperature above the secondary transition point and below the melting point of the polyethylene terephthalate molded product, and the heating temperature conditions are appropriately selected depending on the thickness of the molded product and the pressure and time during heat-pressure bonding.
なお、ポリエチレンテレフタレート成形品は融点以下に
おいても結晶化として腕化するので、結晶化しない接着
条件を選ぶ必要がある。すなわち、加熱圧着上限温度は
融点以下、好ましくは２２０午０以下、とくに１８０ｑ
Ｃ以下がもっともよい。一方、加熱圧着下限温度は２次
転移点以上、好ましくは１００つＣ以上である。ポリエ
チレンテレフタレート成形品の加熱圧着による接着はプ
ラスチックの熱溶融接着法および熱溶融接着装置をその
まま利用して行うことができる利点を有する。Note that polyethylene terephthalate molded products crystallize and form arms even below their melting point, so it is necessary to select bonding conditions that will not cause crystallization. That is, the upper limit temperature for thermocompression bonding is below the melting point, preferably below 220 pm, especially 180 q
C or lower is best. On the other hand, the lower limit temperature for thermocompression bonding is at least the second-order transition point, preferably at least 100 degrees Celsius. Adhesion of polyethylene terephthalate molded products by heat compression bonding has the advantage that it can be carried out by directly utilizing a plastic heat melt bonding method and a heat melt bonding apparatus.
以下、実施例を示す。Examples are shown below.
実施例 １
固有粘度０．６ふ融点２５７０のポリエチレンテレフタ
レート樹脂を２７０ｑｏにてＴダイス成膜装置より押出
し、４０ｏｏの冷却ロールにて急冷固化して厚さ０．０
２５側および０．２５枕肋の禾延伸フィルム・シートを
成膜した。Example 1 A polyethylene terephthalate resin with an intrinsic viscosity of 0.6 and a melting point of 2570 was extruded at 270 qo from a T-die film forming apparatus, and rapidly solidified with a 40 oo cooling roll to a thickness of 0.0 qo.
A stretched film sheet of 25 sides and 0.25 ribs was formed.
該未延伸フィルム・シートの密度はそれぞれ１．３斑２
，１．３４１２で、屈折率およびＸ線回折の測定では実
質的に無定形状態であった。また、比較のため該０．２
５比肋の未延伸シートを１０５℃にて縦方向３．３音、
横方向３．３苦に同時２鞄延伸するとともに２３０ｑｏ
の熱セットを施して厚さ０．０２５肋の延伸フィルムを
得た。延伸フィルムの密度は１．３６５で、屈折率およ
びＸ線回折により結晶配向状態であることを確めた。以
上、３種類のフィルムを用いて熱溶融接着法に常用され
るヒートシール装置を用いて熱溶融接着および熱圧着接
着を試み、その接着性を調べた。The density of the unstretched film/sheet is 1.3 mm2.
, 1.3412, and was substantially amorphous as measured by refractive index and X-ray diffraction. Also, for comparison, 0.2
An unstretched sheet with 5 specific ribs was heated to 3.3 tones in the longitudinal direction at 105°C.
Stretch two bags at the same time by 3.3 degrees in the lateral direction and 230 qo
A stretched film having a thickness of 0.025 ribs was obtained by heat setting. The stretched film had a density of 1.365, and it was confirmed by refractive index and X-ray diffraction that it was in a crystal oriented state. As described above, three types of films were used to perform hot melt bonding and thermocompression bonding using a heat sealing device commonly used in hot melt bonding methods, and their adhesive properties were investigated.
第１表に実施例、比較例の結果を示す。第１表＊ 圧着
圧力は１．５＆ノめである。Table 1 shows the results of Examples and Comparative Examples. Table 1 * The crimping pressure is 1.5 mm.
表より明らかな如く２８０ｑ０の接着（すなわち熱溶融
接着）ではいずれも成形品の溶融によるトラブルすなわ
ち熱板への融着により接着不可である。As is clear from the table, bonding of 280q0 (that is, hot melt bonding) is impossible due to problems caused by melting of the molded product, ie, fusion to the hot plate.
また緒晶配向状態の延伸フィルム同志の熱圧着接着も不
可である。実施例 ２
実施例１の成膜シートフィルムを用いて熱溶融接着法に
常用されるインパルスシール装置を用いて熱溶融接着お
よび熱圧着接着を試み、その接着性を調べた。Furthermore, thermocompression bonding of stretched films in an oriented crystalline state is also not possible. Example 2 Using the formed sheet film of Example 1, hot melt bonding and thermocompression bonding were attempted using an impulse sealing device commonly used in hot melt bonding methods, and the adhesive properties thereof were investigated.
第２表に実施例、比較例の結果を示す。第２表
失 接着温度は以下の順位であり、各条件は最適条件を
採用した。Table 2 shows the results of Examples and Comparative Examples. Table 2 missing The bonding temperatures were ranked as follows, and the optimum conditions were adopted for each condition.
条件（４）＞融点＞条件（３）＞条件（２）＞条件（１
）＞２次転移点比較例３において延伸フィルムがわずか
に熱溶融接着可能と判定されるが、その接着強度は全く
不十分であり、未延伸フィルムでは接着部の溶融、収縮
、乳白化が生じて接着不可である。熱圧着接着では延伸
フィルムにおいて全く接着しないのに対して未延伸フィ
ルムの場合、接着性、接着強力ともに良好でとくに接着
強力の強大なることは注目に値する。実施例 ３
実施例１で得た厚さ０．０２５側の延伸フィルム上にさ
らに同じポリエチレンテレフタレート樹脂を２７０ｏｏ
にて押出ラミネートして厚さ０．０５仇舷の複合成形品
を得た。Condition (4) > Melting point > Condition (3) > Condition (2) > Condition (1
) > Secondary transition point In Comparative Example 3, the stretched film was determined to be slightly hot-melt bondable, but the adhesive strength was completely insufficient, and the unstretched film suffered from melting, shrinkage, and opalescence at the bonded area. It cannot be glued. It is noteworthy that in thermocompression bonding, stretched films do not adhere at all, whereas unstretched films have good adhesive properties and adhesive strength, with particularly strong adhesive strength. Example 3 270 oo of the same polyethylene terephthalate resin was further applied on the stretched film on the 0.025 thickness side obtained in Example 1.
A composite molded product with a thickness of 0.05 mm was obtained by extrusion lamination.
該ラミネートフィルム同志を実施例１と同様の方法で熱
圧着した結果、熱圧着温度は１２０つ０〜１８０００に
おいて最も良好な接着性と接着強度（２．５〜５ｋ９／
１５側中９００ｐｅｅｌ）を示した。実施例 ４実施例
１の成膜シート（厚さ０．２５仇舷）１０仇肋）片を１
００ｑｏに加熱した後、円周辺中１仇岬を残して深さ２
仇松の真空成形を行い、この深絞り容器に内容物を充填
した後、実施例１の成膜フィルム（厚さ０．０２５肌）
１０仇仰ぐ片を容器上に重ね、円周辺中１物岬こ対して
１４０００、１．５ｋ９／地、ｌｓｅｃの条件にて熱圧
着して深絞り容器の密封包装を行った。As a result of thermo-compression bonding of the laminate films in the same manner as in Example 1, the thermo-compression bonding temperature was 120 to 18000, giving the best adhesion and adhesive strength (2.5 to 5K9/
900peel) on the 15th side. Example 4 One piece of the film-formed sheet of Example 1 (thickness: 0.25 mm, 10 ribs)
After heating to 00qo, leave 1 cape around the circle to a depth of 2
After performing vacuum forming and filling the contents into the deep-drawn container, the formed film of Example 1 (thickness: 0.025 mm) was formed.
The 10 pieces were stacked on top of the container, and a deep-drawn container was sealed and packaged by thermocompression bonding at 14,000 mm, 1.5 k9/kg, and 1 sec.
実施例 ５固有粘度１．０う 融点２６０ｑ０のポリエ
チレンテレフタレート樹脂を２８０午０にてパイプ製造
装置より押出し、パイプの先行部分の樹脂温度が１２０
〜１８０℃である位置でパイプの周囲より締付け接着す
るとともに切断して有底パリソンを得た。Example 5 A polyethylene terephthalate resin with an intrinsic viscosity of 1.0 mm and a melting point of 260 q0 was extruded from a pipe manufacturing device at 280 pm, and the resin temperature in the leading part of the pipe was 120 ml.
At a temperature of ~180° C., the pipe was tightened and bonded from around the circumference and cut to obtain a parison with a bottom.
実施例 ６
固有粘度ｉ．０ふ 融点２６０ｏ０のポリエチレンテレ
フタレート樹脂を２８０午０にてパイプ製造装置より押
出し、パイプを成形する。Example 6 Intrinsic viscosity i. A polyethylene terephthalate resin having a melting point of 260° is extruded from a pipe manufacturing device at 280° to form a pipe.
パイプの一端を１００〜１６０℃のＵ字形の回転体に押
付けながら、また同時にパイプ内にｎ字形の整形。ッド
を挿入しながら接着底付けを行い、有底パリソンを得た
。実施例 ７固有粘度０．６５ 融点２５７０のポリエ
チレンテレフタレート樹脂を射出延伸ブロー成形機にて
キャップシール可能な形状の首部を有する有底パリソン
を２８０ご０にて射出成形するとともに有底パリソンの
首下部を１００ｑｏにて延伸ブロー成形を行い、ポリエ
チレンテレフタレートの延伸ブローボトルを得た。While pressing one end of the pipe against a U-shaped rotating body at 100 to 160°C, an N-shape is formed inside the pipe at the same time. Adhesive bottoming was performed while inserting the pad to obtain a parison with a bottom. Example 7 A polyethylene terephthalate resin with an intrinsic viscosity of 0.65 and a melting point of 2570 was injection molded using a stretch blow molding machine to form a bottomed parison having a neck shape capable of being cap-sealed at 280 mm. was subjected to stretch blow molding at 100 qo to obtain a stretch blow mold of polyethylene terephthalate.
Claims (1)
いて、実質的に無定形状態からなる成形品または無定形
状態の部分を含む成形品の無定形状態部分同志を重ね合
わせて重ね合わせ面を該ポリエチレンテレフタレート成
形品の２次転移点以上融点以下の温度で加熱圧着するこ
とを特徴とするポリエチレンテレフタレート成形品の接
着方法。1. In a method for adhering polyethylene terephthalate molded products, the amorphous parts of a molded product that is substantially amorphous or that includes amorphous parts are superimposed on each other, and the overlapping surfaces are bonded to the polyethylene terephthalate molded product. A method for adhering polyethylene terephthalate molded products, which comprises heat-pressing at a temperature above the secondary transition point and below the melting point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP52029906A JPS6021056B2 (en) | 1977-03-17 | 1977-03-17 | Adhesion method for polyethylene terephthalate molded products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP52029906A JPS6021056B2 (en) | 1977-03-17 | 1977-03-17 | Adhesion method for polyethylene terephthalate molded products |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS53114877A JPS53114877A (en) | 1978-10-06 |
| JPS6021056B2 true JPS6021056B2 (en) | 1985-05-25 |
Family
ID=12289017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP52029906A Expired JPS6021056B2 (en) | 1977-03-17 | 1977-03-17 | Adhesion method for polyethylene terephthalate molded products |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6021056B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55166247A (en) * | 1979-06-11 | 1980-12-25 | Dainippon Printing Co Ltd | Polyester coated laminated film or sheet and its preparation |
| JPH0661868B2 (en) * | 1989-08-30 | 1994-08-17 | 積水化成品工業株式会社 | Method for molding polyethylene terephthalate laminated sheet and molding apparatus therefor |
| EP1484162B1 (en) * | 2003-06-04 | 2011-12-28 | Weener Plastik AG | Method of manufacturing a plastic body and container |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL6707823A (en) * | 1967-06-06 | 1968-06-25 | ||
| JPS4983767A (en) * | 1972-12-15 | 1974-08-12 | ||
| JPS5019861A (en) * | 1973-06-22 | 1975-03-03 | ||
| JPS50103581A (en) * | 1974-01-22 | 1975-08-15 | ||
| JPS5142637A (en) * | 1974-10-07 | 1976-04-10 | Daiichi Shokai Kk | PACHINKOKIKANRISOCHI NIOKERU UCHIDOMEHOCHISOCHI |
| JPS5242545A (en) * | 1975-10-02 | 1977-04-02 | Toray Ind Inc | Polyester film |
-
1977
- 1977-03-17 JP JP52029906A patent/JPS6021056B2/en not_active Expired
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL6707823A (en) * | 1967-06-06 | 1968-06-25 | ||
| JPS4983767A (en) * | 1972-12-15 | 1974-08-12 | ||
| JPS5019861A (en) * | 1973-06-22 | 1975-03-03 | ||
| JPS50103581A (en) * | 1974-01-22 | 1975-08-15 | ||
| JPS5142637A (en) * | 1974-10-07 | 1976-04-10 | Daiichi Shokai Kk | PACHINKOKIKANRISOCHI NIOKERU UCHIDOMEHOCHISOCHI |
| JPS5242545A (en) * | 1975-10-02 | 1977-04-02 | Toray Ind Inc | Polyester film |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS53114877A (en) | 1978-10-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2697296C (en) | Coated fabric from monoaxially drawn plastic tapes and bag produced therefrom | |
| EP0084827B1 (en) | Method for the manufacture of a deep-drawn object | |
| JP2848635B2 (en) | Flexible creased packaging material | |
| JP4004540B2 (en) | Package laminate and package produced thereby | |
| JPH0483637A (en) | Manufacture of cylindrical member for paper container | |
| JPH0429529B2 (en) | ||
| KR100890157B1 (en) | Flexible tube | |
| JPH0716996A (en) | Flexible packaging material | |
| JPS6021056B2 (en) | Adhesion method for polyethylene terephthalate molded products | |
| JPS6344477A (en) | Vessel for filling bean curd | |
| JPH09277407A (en) | Production of paper cup | |
| JPS60180833A (en) | Easy-open heat-seal package | |
| JP3126547B2 (en) | Manufacturing method of retort packaging material | |
| JP3650454B2 (en) | Manufacturing method of multilayer stretched film | |
| JPS605452B2 (en) | Joining method for polyethylene terephthalate hollow molded products | |
| KR100837997B1 (en) | Method for preparation of the pouch consisting of the synthetic resin film | |
| JP3255777B2 (en) | Laminated film and hermetically sealed container using the same | |
| JPH06312466A (en) | Production of packing material | |
| JPH0744581Y2 (en) | Paper container with vertical sealing tape | |
| JP2837500B2 (en) | Molding method of multilayer container | |
| JPH0154191B2 (en) | ||
| JPS58212935A (en) | Corrugated cardboard sheet and its manufacture | |
| JPS6349423A (en) | Manufacture of laminate | |
| JP3020104B2 (en) | Method for manufacturing PET bottle with contents | |
| JPH01133735A (en) | Polystyrene series multilayer film |