JPH072347B2 - Adhesion method of sheet to synthetic resin molding - Google Patents
Adhesion method of sheet to synthetic resin moldingInfo
- Publication number
- JPH072347B2 JPH072347B2 JP62185883A JP18588387A JPH072347B2 JP H072347 B2 JPH072347 B2 JP H072347B2 JP 62185883 A JP62185883 A JP 62185883A JP 18588387 A JP18588387 A JP 18588387A JP H072347 B2 JPH072347 B2 JP H072347B2
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- synthetic resin
- resin
- container
- molded product
- 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
- 229920003002 synthetic resin Polymers 0.000 title claims description 55
- 239000000057 synthetic resin Substances 0.000 title claims description 55
- 238000000034 method Methods 0.000 title claims description 12
- 238000000465 moulding Methods 0.000 title description 4
- 239000000853 adhesive Substances 0.000 claims description 22
- 230000001070 adhesive effect Effects 0.000 claims description 22
- 229920005992 thermoplastic resin Polymers 0.000 claims description 10
- 229920005672 polyolefin resin Polymers 0.000 claims description 7
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 229920005989 resin Polymers 0.000 description 19
- 239000011347 resin Substances 0.000 description 19
- 239000010410 layer Substances 0.000 description 14
- 229920013716 polyethylene resin Polymers 0.000 description 12
- -1 polypropylene Polymers 0.000 description 11
- 239000004743 Polypropylene Substances 0.000 description 10
- 238000002347 injection Methods 0.000 description 10
- 239000007924 injection Substances 0.000 description 10
- 229920001155 polypropylene Polymers 0.000 description 10
- 239000000463 material Substances 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- 239000012778 molding material Substances 0.000 description 4
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 235000013311 vegetables Nutrition 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 238000003466 welding 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14778—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the article consisting of a material with particular properties, e.g. porous, brittle
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14311—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles using means for bonding the coating to the articles
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Laminated Bodies (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明はシートの合成樹脂成形品への接着方法、特に合
成樹脂製容器等の成形品の表面に対して印刷シート等の
シートを強い接着力をもって接着出来るシートの合成樹
脂成形品への接着方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for adhering a sheet to a synthetic resin molded article, and particularly strongly adhering a sheet such as a printing sheet to the surface of the molded article such as a synthetic resin container. The present invention relates to a method for adhering a sheet that can be adhered with force to a synthetic resin molded product.
熱可塑性合成樹脂の成形に用いられる射出成形法に於い
て、成形される合成樹脂容器等の成形品の表面にシー
ト、例えば所望の絵、模様、図形等を印刷した紙、アル
ミニューム、合成樹脂等の印刷シートを固着するために
は所定の金型に貼付すべきシートを挿入した後、このシ
ートにホッパーから供給される熱可塑性樹脂の成形材料
を射出させ加熱可塑化した合成樹脂によってシートを成
形品の表面に熱溶着せしめ、熱可塑性樹脂の冷却固化に
よる成形と同時にシートを成形品に接着させる方法が知
られている。In the injection molding method used for molding a thermoplastic synthetic resin, a sheet, for example, paper, aluminum, synthetic resin on which a desired picture, pattern, figure or the like is printed on the surface of a molded product such as a synthetic resin container to be molded In order to fix the printing sheet such as, etc., after inserting the sheet to be pasted into a predetermined mold, the molding material of the thermoplastic resin supplied from the hopper is injected into this sheet, and the sheet is made of synthetic resin heat-plasticized. A method is known in which a surface of a molded product is heat-welded and a sheet is adhered to the molded product at the same time as molding by cooling and solidifying a thermoplastic resin.
ところで、従来前記シートの構成は第８図に図示される
容器の蓋10に接着される場合について説明すると、シー
ト11の両面に合成樹脂層を形成、例えば絵、模様等を印
刷したシート11の表面にはポリプロピレン樹脂層12をそ
の裏面にはポリエチレン樹脂13を形成してあるのが一般
である。そして、貼着すべきポリエチレン樹脂層13に当
接する合成樹脂は同質のポリエチレン樹脂を素材とした
蓋10等の成形品として限定されるのが通常である（例え
ば、合成樹脂成形品がポリエチレンであればシートの当
接面の樹脂は同じくポリエチレンの樹脂層）。これは同
質の樹脂であれば親和性を有し熱可塑化した合成樹脂の
熱によって互いに溶融し充分な接着力をもって合成樹脂
成形品にシートが接着されるためである。これに対し
て、シート11の接着すべき合成樹脂層が容器等の合成樹
脂と異質の合成樹脂である場合には親和性に乏しく熱溶
融されても充分な接着力を得ることが出来ないために、
前記したようにシート11の成形品の合成樹脂との接着面
は同質のものであることが必要とされるのである。By the way, the conventional structure of the above-mentioned sheet will be explained in the case of being adhered to the lid 10 of the container shown in FIG. Generally, a polypropylene resin layer 12 is formed on the front surface and a polyethylene resin 13 is formed on the back surface. The synthetic resin that contacts the polyethylene resin layer 13 to be adhered is usually limited to a molded product such as the lid 10 made of the same quality polyethylene resin (for example, if the synthetic resin molded product is polyethylene). For example, the resin on the contact surface of the sheet is a polyethylene resin layer). This is because, if the resins are of the same quality, the sheets are bonded to the synthetic resin molded product with sufficient adhesive force by melting each other by the heat of the synthetic resin having affinity and being plasticized. On the other hand, when the synthetic resin layer to be adhered to the sheet 11 is a synthetic resin different from the synthetic resin such as the container, the affinity is poor and sufficient adhesive force cannot be obtained even when heat-melted. To
As described above, the adhesive surface of the molded product of the sheet 11 with the synthetic resin needs to be of the same quality.
このように、従来の方法に於いては紙等のシートの両面
又は成形品の合成樹脂との当接面に合成樹脂層を介在さ
せ、かつ成形品の合成樹脂と同質の合成樹脂であること
が必然的な要件であり、このため紙やアルミニューム等
のシート素材単一のシートを合成樹脂成形品に接着する
ことが不可能であって、ためにこの種各種シートの合成
樹脂層の形成工程を必要とし、その分コスト高となる問
題点を有していた。加えて、通気性を必要とする野菜、
果物等の容器には通気性を有する合成樹脂素材を用いる
ことが必要であるが、例えば合成樹脂成形品の表面に所
望の印刷等を施したい場合には貼着される印刷シートの
表面に合成樹脂層が形成されるため、通気性を要する容
器の機能が充分に生かされないという問題点をも有して
いた。As described above, in the conventional method, the synthetic resin layer is interposed on both sides of the sheet such as paper or the contact surface with the synthetic resin of the molded product, and the synthetic resin of the same quality as the synthetic resin of the molded product is used. Is a necessary requirement, and therefore it is not possible to bond a single sheet material such as paper or aluminum to a synthetic resin molded product. There is a problem that the process is required and the cost is increased accordingly. In addition, vegetables that need breathability,
It is necessary to use a breathable synthetic resin material for containers such as fruits, but for example, if you want to apply the desired printing on the surface of a synthetic resin molded product, you can use synthetic resin on the surface of the printed sheet to be attached. Since the resin layer is formed, there is also a problem that the function of the container requiring air permeability is not fully utilized.
本発明は前記した問題点に鑑み、所望のシートを所定の
金型内に挿入後、該シートの裏面に合成樹脂接着剤を混
入した熱可塑性樹脂を射出せしめ、前記射出された熱可
塑性樹脂を所望の成形品に形成すると同時に、前記合成
樹脂接着剤により前記シートを前記合成樹脂成形品に接
着一体化するようにしたことにより、印刷シート等の各
種シートを強力な接着力をもって簡単かつ容易に合成樹
脂容器等の成形品に接着可能としたシートの合成樹脂成
形品への接着方法を提供しようとして開発したものであ
る。In view of the above-mentioned problems, the present invention inserts a desired sheet into a predetermined mold, and then injects a thermoplastic resin mixed with a synthetic resin adhesive to the back surface of the sheet, and injects the injected thermoplastic resin. At the same time as forming the desired molded product, the synthetic resin adhesive is used to integrally bond the sheet to the synthetic resin molded product, so that various sheets such as printing sheets can be easily and easily provided with a strong adhesive force. It was developed in order to provide a method for adhering a sheet that can be adhered to a molded product such as a synthetic resin container to a synthetic resin molded product.
以下に、本発明の実施例を図面に基づいて説明する。本
実施例に於いては容器の蓋に印刷シートを接着する場合
について説明する。Embodiments of the present invention will be described below with reference to the drawings. In this embodiment, the case where the printing sheet is adhered to the lid of the container will be described.
図中、第１図は本発明による方法で蓋に印刷シートを接
着した容器の斜視図、第２図は第１実施例の容器の蓋に
印刷シートを接着する状態を示す説明図、第３図は同印
刷シートに接着した蓋の断面図、第４図は第２実施例の
印刷シートを接着した蓋の断面図、第５図は第３実施例
の印刷シートから構成された容器の正面図、第６図及び
第７図は同要部断面図である。In the drawings, FIG. 1 is a perspective view of a container in which a printing sheet is adhered to a lid by the method according to the present invention, and FIG. 2 is an explanatory view showing a state in which the printing sheet is adhered to the lid of the container of the first embodiment. FIG. 4 is a cross-sectional view of a lid adhered to the same printing sheet, FIG. 4 is a cross-sectional view of a lid adhered to the printing sheet of the second embodiment, and FIG. 5 is a front view of a container composed of the printing sheet of the third embodiment. FIG. 6, FIG. 6 and FIG. 7 are sectional views of the same main part.
〔第１実施例〕 第２図において１は合成樹脂容器２の蓋４を成形するた
めの金型である。この金型１は後記するポリオレフィン
樹脂接着剤を混入した熱可塑性樹脂であるポリエチレン
樹脂（以下、単に射出樹脂という。）の射出孔３を有す
る雄型1aと射出樹脂を受ける雌型1bとから構成されてい
て、この雄型1aと雌型1bとによって図示するような形状
の容器の蓋４が形成されるものである。本実施例におい
て第１図に図示するような表面に絵模様を描いた紙、ア
ルミニューム、合成樹脂等の素材からなる印刷シート５
はその裏面にポリプロピレン樹脂層６が形成されてい
る。そして、金型１を閉じる前に雌型1bに貼着すべき印
刷シート５をポリプロピレン樹脂層６を上面にして載
置、挿入しておく。しかる後、接着性の強いポリオレフ
ィン樹脂接着剤７を１〜15重量％混入した成形材料であ
るポリエチレン樹脂８を雄型1aの射出孔３から加熱可塑
化された状態で金型１に射出させるものである。そし
て、所定の時間経過後に射出される合成樹脂であるポリ
エチレン樹脂８を冷却固化させ、金型１を開いて金型１
から取り出せば溶融した異種の合成樹脂であっても熱溶
融時にポリエチレン樹脂８に混入されたポリオレフィン
樹脂接着剤７の接着力によって、図示する蓋４の形状に
射出成形されるポリエチレン樹脂８に印刷シート５が強
力に接着されることになる（第１図及び第３図参照）。[First Embodiment] In FIG. 2, reference numeral 1 is a mold for molding a lid 4 of a synthetic resin container 2. The mold 1 is composed of a male mold 1a having an injection hole 3 of a polyethylene resin (hereinafter simply referred to as an injection resin), which is a thermoplastic resin mixed with a polyolefin resin adhesive described later, and a female mold 1b for receiving the injection resin. The male die 1a and the female die 1b form the lid 4 of the container having the shape as shown in the figure. In the present embodiment, a printing sheet 5 made of a material such as paper, aluminum, synthetic resin or the like having a picture pattern drawn on its surface as shown in FIG.
Has a polypropylene resin layer 6 formed on its back surface. Then, before closing the mold 1, the printing sheet 5 to be attached to the female mold 1b is placed and inserted with the polypropylene resin layer 6 as the upper surface. Then, a polyethylene resin 8 which is a molding material containing 1 to 15% by weight of a highly adhesive polyolefin resin adhesive 7 is injected from the injection hole 3 of the male mold 1a into the mold 1 while being heat-plasticized. Is. Then, the polyethylene resin 8 which is a synthetic resin injected after a predetermined time has elapsed is cooled and solidified, and the mold 1 is opened to open the mold 1.
If it is taken out from the polyethylene resin 8 even if it is a different kind of molten synthetic resin, it is printed on the polyethylene resin 8 which is injection molded into the shape of the lid 4 shown in the figure by the adhesive force of the polyolefin resin adhesive 7 mixed in the polyethylene resin 8 at the time of heat fusion. 5 will be strongly bonded (see FIGS. 1 and 3).
第２図と第３図に示す実施例では、印刷シート５の片面
にポリプロピレン樹脂層６を形成した場合を示したが、
射出樹脂と同質の合成樹脂層を形成した印刷シート５を
形成してもよく、この場合には同質の合成樹脂の熱溶着
に加えてより強力な接着力を付与することが出来る。In the embodiment shown in FIGS. 2 and 3, the case where the polypropylene resin layer 6 is formed on one surface of the printing sheet 5 is shown.
The printed sheet 5 having a synthetic resin layer of the same quality as the injection resin may be formed, and in this case, stronger adhesive force can be provided in addition to the heat welding of the synthetic resin of the same quality.
〔第２実施例〕 更に、第４図に図示するものは紙、アルミニューム、合
成樹脂等の素材からなる印刷シート５単体のみを射出樹
脂の容器の蓋４に接着した例を示すものである。この印
刷シート５の蓋４への接着方法は前記第１実施例と同様
の工程を経て行うものである。この実施例では、従来で
は接着すべき容器等の成形品の面或いは印刷シート５の
接着面には必然的に射出樹脂と同質の合成樹脂層を形成
する必要があったが、射出樹脂に混入されたポリオレフ
ィン樹脂接着剤７の作用によって印刷シート５単体のみ
を容器の蓋４の表面に接着することが可能となる。Second Embodiment Further, FIG. 4 shows an example in which only the printing sheet 5 made of a material such as paper, aluminum, synthetic resin or the like is adhered to the lid 4 of the injection resin container. . The method of adhering the print sheet 5 to the lid 4 is performed through the same steps as in the first embodiment. In this embodiment, conventionally, it was necessary to form a synthetic resin layer of the same quality as the injection resin on the surface of the molded product such as the container to be adhered or the adhesion surface of the printing sheet 5, but it was mixed with the injection resin. By the action of the polyolefin resin adhesive 7 thus formed, it becomes possible to adhere only the printing sheet 5 alone to the surface of the lid 4 of the container.
〔第３実施例〕 第５図及び第６図に示すものは容器２の大部分を印刷シ
ート５をもって構成した場合を示すものである。[Third Embodiment] FIGS. 5 and 6 show the case where most of the container 2 is constituted by the printing sheet 5.
本実施例では、紙、合成樹脂製不織布等の素材のみから
なる印刷シート５を用意し、この印刷シート５を所定の
容器２の金型にホーン状に湾曲させて挿入し印刷シート
５の接合部5a、容器２の上方開口部2aと下方底部2bに相
当する部分に前記実施例と同様にポリオレフィン樹脂接
着剤を混入した成形材料であるポリプロピレン樹脂６′
を金型に射出させることによって、容器２を成形したも
のである。この実施例ではポリプロピレン樹脂６′が容
器２の補強リブの役目を果たし、かつ容器２の大部分が
印刷シート５をもって構成されているから、通気性を必
要とする野菜や果物等の容器として最適な容器２を提供
することが可能となる。In the present embodiment, a printing sheet 5 made of only a material such as paper and synthetic resin non-woven fabric is prepared, and the printing sheet 5 is curvedly inserted into a mold of a predetermined container 2 in a horn shape to join the printing sheets 5. A polypropylene resin 6 ', which is a molding material in which a polyolefin resin adhesive is mixed in the portions 5a and the portions corresponding to the upper opening 2a and the lower bottom 2b of the container 2 as in the above embodiment.
The container 2 is molded by injecting into a mold. In this embodiment, the polypropylene resin 6'acts as a reinforcing rib of the container 2 and most of the container 2 is constituted by the printing sheet 5, so that it is most suitable as a container for vegetables, fruits and the like that needs air permeability. It is possible to provide a different container 2.
又、第７図に示すように印刷シート５面の防護、容器２
の補強の意味から印刷シート５上面に更にポリプロピレ
ン層６をコーティングするようにしても良い。Further, as shown in FIG. 7, protection of the printing sheet 5 surface, container 2
For the purpose of reinforcement, the upper surface of the printing sheet 5 may be further coated with a polypropylene layer 6.
尚、成形材料としての合成樹脂は前記実施例に示される
ポリエチレン樹脂、ポリプロピレン樹脂の他、スチロー
ル樹脂等各種熱可塑性樹脂が用いられるのは勿論であ
る。Incidentally, as the synthetic resin as the molding material, it is needless to say that various thermoplastic resins such as styrene resin are used in addition to the polyethylene resin and polypropylene resin shown in the above-mentioned examples.
本発明は所望のシートを所定の金型内に挿入後、該シー
トの裏面に合成樹脂接着剤を混入した熱可塑性樹脂を射
出せしめ、前記射出された熱可塑性樹脂を所望の成形品
に形成すると同時に、前記合成樹脂接着剤により前記シ
ートを合成樹脂成形品に接着一体化するようにしたの
で、従来のように接着されるべき合成樹脂成形品と同質
の合成樹脂を印刷シート等のシートに形成する必要がな
く、射出される成形用の合成樹脂と異質の合成樹脂をシ
ートに形成してある場合の他に、シート単体でも容器等
の合成樹脂成形品に強力な接着力をもってシートを接着
することが可能となる。According to the present invention, after inserting a desired sheet into a predetermined mold, a thermoplastic resin mixed with a synthetic resin adhesive is injected on the back surface of the sheet, and the injected thermoplastic resin is formed into a desired molded article. At the same time, since the sheet is bonded and integrated with the synthetic resin molded product by the synthetic resin adhesive, a synthetic resin of the same quality as the conventional synthetic resin molded product to be bonded is formed on a sheet such as a printing sheet. In addition to the case where a synthetic resin different from the injection molding synthetic resin is formed on the sheet, it is possible to bond the sheet with a strong adhesive force to the synthetic resin molded product such as the container even with the sheet alone. It becomes possible.
又、従来のようにシートに接着層となる合成樹脂層を形
成する工程を必要としないので、容器等に接着されるシ
ートの製造工程を簡略化することが出来るとともに、コ
ストダウン化に資することが可能となる。Further, unlike the conventional case, the step of forming a synthetic resin layer as an adhesive layer on the sheet is not required, so that the manufacturing process of the sheet to be adhered to a container or the like can be simplified and the cost can be reduced. Is possible.
更に、前記したようにシート単体を容器等に接着し或い
は容器等として成形することが可能であるから、シート
の有する機能性、例えば通気性を損なうことがなく通気
性を要する各種容器にとって極めて好個なものを提供す
ることが出来る等の優れた効果を有するものである。Furthermore, as described above, since it is possible to bond a single sheet to a container or the like or form it as a container or the like, it is extremely suitable for various containers that require breathability without impairing the functionality of the sheet, for example, breathability. It has excellent effects such as being able to provide individual items.
図面は本発明の実施例を示すものであり、第１図は本発
明による方法で蓋に印刷シートを接着した容器の斜視
図、第２図は第１実施例の容器の蓋に印刷シートを接着
する状態を示す説明図、第３図は同印刷シートに接着し
た蓋の断面図、第４図は第２実施例の印刷シートを接着
した蓋の断面図、第５図は第３実施例の印刷シートから
構成された容器の正面図、第６図及び第７図は同要部断
面図、第８図は従来例の印刷シート付の蓋の断面図であ
る。 １…金型、1a…雄型、1b…雌型、２…容器、2a…上方開
口部、2b…下方底部、３…射出孔、４…蓋、５…印刷シ
ート、5a…接合部、６…ポリプロピレン樹脂層、６′…
ポリプロピレン樹脂、７…ポリオレフィン樹脂接着剤、
８…ポリエチレン樹脂。The drawings show an embodiment of the present invention. FIG. 1 is a perspective view of a container in which a printing sheet is attached to a lid by the method according to the present invention, and FIG. 2 is a printing sheet on the lid of the container of the first embodiment. FIG. 3 is a cross-sectional view of a lid bonded to the same printing sheet, FIG. 4 is a cross-sectional view of a lid bonded to the printing sheet of the second embodiment, and FIG. 5 is a third embodiment. FIG. 6 is a front view of a container composed of the print sheet of FIG. 6, FIG. 6 and FIG. 7 are cross-sectional views of relevant parts, and FIG. 8 is a cross-sectional view of a lid with a print sheet of a conventional example. DESCRIPTION OF SYMBOLS 1 ... Mold, 1a ... Male type, 1b ... Female type, 2 ... Container, 2a ... Upper opening part, 2b ... Lower bottom part, 3 ... Injection hole, 4 ... Lid, 5 ... Printing sheet, 5a ... Joint part, 6 ... Polypropylene resin layer, 6 '...
Polypropylene resin, 7 ... Polyolefin resin adhesive,
8 ... Polyethylene resin.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｂ２９Ｋ 23:00 Ｂ２９Ｌ 31:56 ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification code Internal reference number FI technical display location B29K 23:00 B29L 31:56
Claims (3)
シートの裏面に合成樹脂接着剤を混入した熱可塑性樹脂
を射出せしめ、前記射出された熱可塑性樹脂を所望の成
形品に形成すると同時に、前記合成樹脂接着剤により前
記シートを前記合成樹脂成形品に接着一体化するように
したことを特徴とするシートの合成樹脂成形品への接着
方法。1. A desired sheet is inserted into a predetermined mold, and a thermoplastic resin mixed with a synthetic resin adhesive is injected on the back surface of the sheet, and the injected thermoplastic resin is formed into a desired molded product. A method for adhering a sheet to a synthetic resin molded product, characterized in that the sheet is bonded and integrated with the synthetic resin molded product by the synthetic resin adhesive at the same time as the formation.
ートである特許請求の範囲第１項記載のシートの合成樹
脂成形品への接着方法。2. The method for adhering a sheet to a synthetic resin molded article according to claim 1, wherein the sheet is a printed sheet having a desired pattern, figure or the like.
接着剤である特許請求の範囲第１項記載のシートの合成
樹脂成形品への接着方法。3. The method for adhering a sheet to a synthetic resin molded article according to claim 1, wherein the synthetic resin adhesive is a polyolefin resin adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62185883A JPH072347B2 (en) | 1987-07-24 | 1987-07-24 | Adhesion method of sheet to synthetic resin molding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62185883A JPH072347B2 (en) | 1987-07-24 | 1987-07-24 | Adhesion method of sheet to synthetic resin molding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6427915A JPS6427915A (en) | 1989-01-30 |
| JPH072347B2 true JPH072347B2 (en) | 1995-01-18 |
Family
ID=16178545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62185883A Expired - Lifetime JPH072347B2 (en) | 1987-07-24 | 1987-07-24 | Adhesion method of sheet to synthetic resin molding |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH072347B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4954670B2 (en) * | 2006-10-31 | 2012-06-20 | 株式会社吉野工業所 | Container with in-mold label |
| JP4974786B2 (en) * | 2007-06-29 | 2012-07-11 | リスパック株式会社 | In-mold label container |
| JP5160701B2 (en) * | 2011-02-23 | 2013-03-13 | 三井・デュポンポリケミカル株式会社 | Resin container and method for manufacturing resin container |
| JP5970260B2 (en) * | 2012-06-29 | 2016-08-17 | 株式会社吉野工業所 | Container with in-mold label |
-
1987
- 1987-07-24 JP JP62185883A patent/JPH072347B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6427915A (en) | 1989-01-30 |
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