CN114103137A - Bottle cap inner pad and preparation method thereof - Google Patents
Bottle cap inner pad and preparation method thereof Download PDFInfo
- Publication number
- CN114103137A CN114103137A CN202111303844.XA CN202111303844A CN114103137A CN 114103137 A CN114103137 A CN 114103137A CN 202111303844 A CN202111303844 A CN 202111303844A CN 114103137 A CN114103137 A CN 114103137A
- Authority
- CN
- China
- Prior art keywords
- bottle cap
- tpe
- layer
- sheet
- inner pad
- 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.)
- Pending
Links
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 229920002725 thermoplastic elastomer Polymers 0.000 claims description 97
- 239000000463 material Substances 0.000 claims description 46
- 238000000465 moulding Methods 0.000 claims description 32
- 235000010627 Phaseolus vulgaris Nutrition 0.000 claims description 24
- 244000046052 Phaseolus vulgaris Species 0.000 claims description 24
- 238000002347 injection Methods 0.000 claims description 13
- 239000007924 injection Substances 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 11
- 238000004080 punching Methods 0.000 claims description 11
- 239000011248 coating agent Substances 0.000 claims description 9
- 238000000576 coating method Methods 0.000 claims description 9
- 150000001875 compounds Chemical class 0.000 claims description 6
- 239000000853 adhesive Substances 0.000 claims description 5
- 230000001070 adhesive effect Effects 0.000 claims description 5
- 239000002131 composite material Substances 0.000 claims description 3
- 238000010030 laminating Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract description 8
- 238000004806 packaging method and process Methods 0.000 abstract description 2
- 239000004743 Polypropylene Substances 0.000 description 55
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 15
- 229910052782 aluminium Inorganic materials 0.000 description 15
- 229920001971 elastomer Polymers 0.000 description 7
- 229920005989 resin Polymers 0.000 description 5
- 239000011347 resin Substances 0.000 description 5
- 239000004033 plastic Substances 0.000 description 3
- 239000002861 polymer material Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000004132 cross linking Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 231100000252 nontoxic Toxicity 0.000 description 2
- 230000003000 nontoxic effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000007799 cork Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000004816 latex Substances 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 230000009967 tasteless effect Effects 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 239000005028 tinplate Substances 0.000 description 1
- 238000004448 titration Methods 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
- 239000004636 vulcanized rubber Substances 0.000 description 1
Images
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
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
- B26F1/38—Cutting-out; Stamping-out
- B26F1/40—Cutting-out; Stamping-out using a press, e.g. of the ram type
-
- 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
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/24—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of indefinite length
- B29C41/32—Making multilayered or multicoloured articles
-
- 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
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/34—Component parts, details or accessories; Auxiliary operations
-
- 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
- B29C66/03—After-treatments in the joint area
- B29C66/032—Mechanical after-treatments
- B29C66/0326—Cutting, e.g. by using waterjets, or perforating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D53/00—Sealing or packing elements; Sealings formed by liquid or plastics material
- B65D53/04—Discs
Abstract
The invention relates to packaging, in particular to a bottle cap inner pad and a preparation method thereof, and the bottle cap inner pad is different from the prior art in that: including the PP layer of upper surface and bottle lid top surface butt, with the TPE layer that PP layer lower surface bonded. Compared with the prior art, the invention has the advantages of easy unscrewing of the bottle cap, higher safety, better sealing performance and low comprehensive cost.
Description
Technical Field
The invention relates to packaging, in particular to a bottle cap inner pad and a preparation method thereof.
Background
The bottle cap is used for keeping the sealing performance of the content product. The early development of bottle caps used cork, tinplate crown caps and screw caps, and aluminum caps with long neck, carbonated aluminum caps, hot-fill aluminum caps and injection aluminum caps were developed successively, and they had the functions of anti-theft opening and safety. However, since the aluminum cap cannot be directly combined with the bottle mouth to achieve sealing, an inner gasket is usually disposed between the top surface of the bottle cap and the bottle mouth. The existing bottle cap inner pad is usually formed by extruding a latex resin sealing material into a bottle cap by a titration method with a high polymer material, baking, curing and then molding.
However, due to the difference of the resin materials, the inner pad usually exhibits different characteristics, such as good elasticity and good sealing performance of some materials, but the friction coefficient is large, the bottle cap is not easy to unscrew, and the friction coefficient is small, although the elasticity of some materials is insufficient, the sealing performance is not good, and the bottle cap is easy to unscrew.
Disclosure of Invention
In order to overcome one of the defects or shortcomings of the prior art, the invention discloses a bottle cap inner pad with sealing performance and easy opening performance and a preparation method thereof, and the technical scheme is as follows:
the bottle cap inner pad is different from the prior art in that: including the PP layer of upper surface and bottle lid top surface butt, with the TPE layer that PP layer lower surface bonded.
Further, the diameter of the PP layer is greater than or equal to the diameter of the TPE layer.
Further, the TPE layer comprises an annular lip edge which is positioned on the edge and corresponds to the outside of the bottle mouth and protrudes downwards, and an annular convex weir which is arranged at the interval of the annular lip edge and corresponds to the inside of the bottle mouth and protrudes downwards.
One of the preparation methods of the inner pad of the bottle cap comprises the following steps:
1) coating an adhesive on the inner surface of the PP sheet or the TPE sheet;
2) the PP sheet and the TPE sheet are compounded together through a laminating compound machine to form a compound sheet;
3) and punching the composite sheet by a punching machine die head corresponding to the inner diameter size of the bottle cap to form the bottle cap inner pad.
The second preparation method of the inner pad of the bottle cap comprises the following steps:
a) extruding quantitative molten TPE material beans to the upper surface of a PP sheet at intervals by a material injection pipe of a drop molding machine;
b) a TPE die head of the drop molding machine respectively presses and molds the TPE beans to form a TPE layer;
and C) punching a PP sheet with a TPE layer by a punching machine die head corresponding to the inner diameter size of the bottle cap to form the bottle cap inner pad.
The third preparation method of the inner pad of the bottle cap comprises the following steps:
a) the opening of the bottle cap is upward, and a quantitative molten PP material bean is extruded into the bottle cap by a material injection pipe of the drop molding machine;
b) a PP die head of the drop molding machine extends into the bottle cap to perform pressure molding on PP material beans to form a PP layer;
c) after the PP layer is cooled, extruding quantitative molten TPE material beans into the bottle cap through a material injection pipe of a drop molding machine;
d) a TPE die head of the drop molding machine extends into the bottle cap to perform pressure molding on TPE beans to form a TPE layer;
e) the TPE layer and the PP layer are naturally bonded together to form the inner pad of the bottle cap.
The fourth preparation method of the bottle cap inner pad comprises the following steps:
A) punching a PP sheet material by a punching machine die head corresponding to the inner diameter size of the bottle cap to form a PP layer;
B) the PP layer is arranged in the bottle cap and is abutted against the top surface of the bottle cap;
C) the opening of the bottle cap is upward, and a quantitative molten TPE material bean is extruded into the bottle cap by a material injection pipe of the drop molding machine;
D) a TPE die head of the drop molding machine extends into the bottle cap to perform pressure molding on TPE beans to form a TPE layer;
E) the TPE layer and the PP layer are naturally bonded together to form the inner pad of the bottle cap.
Compared with the prior art, the invention has the following beneficial technical effects:
PP is also called polypropylene, and is a nontoxic and tasteless polymer, and has the advantages of stable chemical properties, comfortable texture, smooth and smooth surface and low price. TPE is a thermoplastic elastomer material, is a high polymer material (without vulcanization) which has the characteristics of plastic and rubber, shows high elasticity of rubber at normal temperature and can be plasticized and molded at high temperature. The thermoplastic elastomer has the structural characteristics that different resin segments and rubber segments are formed by chemical bonds, the resin segments form physical cross-linking points by virtue of inter-chain acting force, and the rubber segments are high-elasticity segments and contribute to elasticity. The physical cross-linking of the plastic segment changes reversibly with temperature, indicating the plastic processing characteristics of the thermoplastic elastomer. Therefore, thermoplastic elastomers have the physical and mechanical properties of vulcanized rubber and the processing properties of thermoplastics, and are a novel polymer material between rubber and resin, and are often called third-generation rubber. From the viewpoint of environmental protection, the PP material is a non-toxic material, but the TPE meets the standard of food grade, so that the TPE is safer than the PP material. The TPE has a comfortable feel, like rubber, or even a somewhat sticky hand. However, TPE is much more expensive than PP.
According to the invention, the PP layer in contact with the aluminum plate or the coating on the top surface of the aluminum cap is made of PP material, and the TPE layer in contact with the bottle opening is made of TPE material, so that the TPE layer and the bottle opening do not rotate relatively when the cap is opened by rotation even if the friction coefficient between the aluminum TPE layer and the bottle opening is large, but the friction coefficient between the aluminum plate or the coating on the top surface of the bottle cap with the PP layer is small, and the aluminum plate or the coating can slide relatively when the cap is opened by rotation, so that the cap is easy to unscrew.
The contact with the bottle content is the TPE material, and is safer.
The TPE layer that contacts with the bottleneck is the TPE material, and elasticity is good, therefore sealing performance is better.
The TPE and the PP can be wrapped and bonded, and can be fixed together even without an adhesive through thermoplasticity.
The invention adopts the TPE and the PP to be compounded, and the comprehensive cost is higher than that of a pure PP material but lower than that of the pure TPE material.
Drawings
Fig. 1 is a schematic structural view of an inner pad of a bottle cap obtained in embodiment 1 of the present invention.
Fig. 2 is a sectional view of fig. 1.
Fig. 3 is a schematic structural view of the inner pad of the bottle cap obtained in embodiment 2 or 3 of the present invention.
Fig. 4 is a sectional view of fig. 3.
Figure 5 is a process scheme for example 1.
Figure 6 is a process scheme for example 2.
Figure 7 is a process scheme for example 3.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
Example 1, referring to fig. 5, a method for preparing an inner pad of a bottle cap includes the following steps:
1) coating the inner surface of the PP sheet 1 'or TPE sheet 2' with an adhesive 3;
2) the PP sheet 1 '' and the TPE sheet 2 '' are compounded together by a laminating compound machine to form a compound sheet 4;
3) the composite sheet 4 is die cut by a punch die 500 corresponding to the inner diameter dimension of the bottle cap to form the inner pad of the bottle cap.
The formed inner pad of the bottle cap is shown in fig. 1-2 and comprises a PP layer 1 and a TPE layer 2, wherein the upper surface of the PP layer 1 is abutted to the top surface of the bottle cap, and the TPE layer is bonded to the lower surface of the PP layer 1.
According to the invention, the PP layer in contact with the aluminum plate or the coating on the top surface of the aluminum cap is made of PP material, and the TPE layer in contact with the bottle opening is made of TPE material, so that the TPE layer and the bottle opening do not rotate relatively when the cap is opened by rotation even if the friction coefficient between the aluminum TPE layer and the bottle opening is large, but the friction coefficient between the aluminum plate or the coating on the top surface of the bottle cap with the PP layer is small, and the aluminum plate or the coating can slide relatively when the cap is opened by rotation, so that the cap is easy to unscrew. The contact with the bottle content is the TPE material, and is safer. The TPE layer that contacts with the bottleneck is the TPE material, and elasticity is good, therefore sealing performance is better. The TPE and the PP can be wrapped and bonded, and can be fixed together even without an adhesive through thermoplasticity. The TPE and the PP are compounded, so that the comprehensive cost is higher than that of a pure PP material but lower than that of the pure TPE material.
Example 2, referring to fig. 6, a method for preparing an inner pad of a bottle cap includes the following steps:
a) extruding quantitative molten TPE material beans 2 ' from a material injection pipe 200 of a drop molding machine to the upper surface of the PP sheet 1 ' ' at intervals;
b) a TPE die head 400 of the drop molding machine respectively presses and molds the TPE material beans 2' to form a TPE layer 2;
c) die punch die 500 corresponding to the inner diameter of the bottle cap die cuts PP sheet 1 ″ with TPE layer 2 to form the inner liner of the bottle cap.
The resulting inner liner of the closure is shown in fig. 3-4, and the TPE layer 2 includes a downwardly convex annular lip 21 on the rim corresponding to the outside of the mouth of the bottle, and a downwardly convex annular weir 22 spaced from the annular lip 21 corresponding to the inside of the mouth of the bottle. The diameter of the PP layer 1 is equal to that of the TPE layer 2, and the diameters of the PP layer and the TPE layer are smaller than or equal to the inner diameter of the bottle cap, so that assembly is facilitated. To form such a structure, the lower surface of TPE die 400 has a groove corresponding to the shape of the annular lip 21, annular weir 22.
Example 3, referring to fig. 7, a method for preparing an inner pad of a bottle cap, comprising the steps of:
a) the opening of the bottle cap 100 is upward, and a quantitative molten PP material bean 1' is extruded into the bottle cap by a material injection pipe 200 of a drop molding machine;
b) a PP die head 300 of the drop molding machine extends into the bottle cap 100 to perform pressure molding on the PP material beans 1' to form a PP layer 1;
c) after the PP layer 1 is cooled, a material injection pipe 200 of a drop molding machine extrudes quantitative molten TPE material beans 2' into the bottle cap;
d) a TPE die head 400 of the drop molding machine extends into the bottle cap 100 to pressurize and mold TPE beans 2' to form a TPE layer 2;
e) the TPE layer 2 and the PP layer 1 are naturally bonded together to form the inner pad of the bottle cap.
The resulting inner liner of the closure is shown in fig. 3-4, and the TPE layer 2 includes a downwardly convex annular lip 21 on the rim corresponding to the outside of the mouth of the bottle, and a downwardly convex annular weir 22 spaced from the annular lip 21 corresponding to the inside of the mouth of the bottle. The diameter of the PP layer 1 is larger than that of the TPE layer 2, and the diameters of the PP layer 1 and the TPE layer are smaller than or equal to the inner diameter of the bottle cap, so that assembly is facilitated. To form such a structure, the lower surface of TPE die 400 has a groove corresponding to the shape of the annular lip 21, annular weir 22.
A) punching a PP sheet 1 '' by a punching machine die head 500 corresponding to the inner diameter size of the bottle cap to form a PP layer 1;
B) the PP layer 1 is arranged in the bottle cap and is abutted against the top surface of the bottle cap;
C) the opening of the bottle cap 100 is upward, and a quantitative molten TPE material bean 2' is extruded into the bottle cap by a material injection pipe 200 of a drop molding machine;
D) a TPE die head 400 of the drop molding machine extends into the bottle cap 100 to pressurize and mold TPE beans 2' to form a TPE layer 2;
E) the TPE layer 2 and the PP layer 1 are naturally bonded together to form the inner pad of the bottle cap.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A bottle cap inner pad is characterized in that: including PP layer (1) of upper surface and bottle lid top surface butt, with TPE layer (2) that PP layer (1) lower surface bonds.
2. The inner liner of a bottle cap as claimed in claim 1, wherein: the diameter of the PP layer (1) is larger than or equal to that of the TPE layer (2).
3. The inner liner of a bottle cap as claimed in claim 1, wherein: the TPE layer (2) comprises an annular lip edge (21) which is positioned at the edge and corresponds to the outside of the bottle mouth and protrudes downwards, and an annular convex weir (22) which is arranged at the interval of the annular lip edge (21) and corresponds to the inside of the bottle mouth and protrudes downwards.
4. A preparation method of an inner pad of a bottle cap is characterized by comprising the following steps: the method comprises the following steps:
1) coating the inner surface of the PP sheet (1 ') or TPE sheet (2') with an adhesive (3);
2) the PP sheet (1 '') and the TPE sheet (2 '') are compounded together by a laminating compound machine to form a compound sheet (4);
3) and punching the composite sheet (4) by a punching machine die head (500) corresponding to the inner diameter size of the bottle cap to form the bottle cap inner pad.
5. A preparation method of an inner pad of a bottle cap is characterized by comprising the following steps: the method comprises the following steps:
a) extruding quantitative molten TPE material beans (2 ') to the upper surface of a PP sheet (1') at intervals by a material injection pipe (200) of a drop molding machine;
b) a TPE die head (400) of the drop molding machine respectively presses and molds the TPE beans (2') to form a TPE layer (2);
third) die cutting PP sheet (1 '') with TPE layer (2) to form inner liner of bottle cap by punch die (500) corresponding to inner diameter of bottle cap.
6. A preparation method of an inner pad of a bottle cap is characterized by comprising the following steps: the method comprises the following steps:
a) the opening of the bottle cap (100) is upward, and a quantitative molten PP material bean (1') is extruded into the bottle cap by a material injection pipe (200) of a drop molding machine;
b) a PP die head (300) of the drop molding machine extends into the bottle cap (100) to carry out pressure molding on the PP beans (1') to form a PP layer (1);
c) after the PP layer (1) is cooled, a material injection pipe (200) of a drop molding machine extrudes quantitative molten TPE material beans (2') into the bottle cap;
d) a TPE die head (400) of the drop molding machine extends into the bottle cap (100) to perform pressure molding on TPE beans (2') to form a TPE layer (2);
e) the TPE layer (2) and the PP layer (1) are naturally bonded together to form the inner pad of the bottle cap.
7. A preparation method of an inner pad of a bottle cap is characterized by comprising the following steps: the method comprises the following steps:
A) punching a PP sheet (1 '') to form a PP layer (1) by a punch die head (500) corresponding to the inner diameter of the bottle cap;
B) the PP layer (1) is arranged in the bottle cap and is abutted against the top surface of the bottle cap;
C) the opening of the bottle cap (100) is upward, and quantitative molten TPE (thermoplastic elastomer) beans (2') are extruded into the bottle cap by a material injection pipe (200) of a drop molding machine;
D) a TPE die head (400) of the drop molding machine extends into the bottle cap (100) to perform pressure molding on TPE beans (2') to form a TPE layer (2);
E) the TPE layer (2) and the PP layer (1) are naturally bonded together to form the inner pad of the bottle cap.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2021108735701 | 2021-07-30 | ||
| CN202110873570 | 2021-07-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114103137A true CN114103137A (en) | 2022-03-01 |
Family
ID=80380707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111303844.XA Pending CN114103137A (en) | 2021-07-30 | 2021-11-05 | Bottle cap inner pad and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114103137A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH282689A (en) * | 1949-11-21 | 1952-05-15 | Gustaf Wastenson Erik | Insert for bottle closure caps and process for their manufacture. |
| CN101148514A (en) * | 2006-09-20 | 2008-03-26 | 张康然 | Manufacturing method for composite plastic sheet and application thereof |
| JP2009208795A (en) * | 2008-02-29 | 2009-09-17 | Universal Seikan Kk | Cap with liner and bottle with cap |
| CN101891031A (en) * | 2009-05-23 | 2010-11-24 | 环宇制罐株式会社 | Liner-provided cap and cap-provided threaded container |
| CN202193297U (en) * | 2011-07-14 | 2012-04-18 | 孟州市冠达包装科技有限责任公司 | Inner pad of beverage package bottle cover |
| JP2014177291A (en) * | 2013-03-14 | 2014-09-25 | Universal Seikan Kk | Container with cap and cap |
| CN106003740A (en) * | 2016-05-26 | 2016-10-12 | 广州晶品智能压塑科技股份有限公司 | Forming method of compression molding bottle caps |
| CN206050472U (en) * | 2016-09-12 | 2017-03-29 | 成都海川制盖有限公司 | Aluminium pot lid |
| WO2018205326A1 (en) * | 2017-05-10 | 2018-11-15 | 佛山市同骏环保科技有限公司 | Adhesive-free bottle cap gasket and/or padding and preparation method therefor |
| CN108883602A (en) * | 2016-04-06 | 2018-11-23 | 德尼培股份有限公司 | The tab lining of heat lamination |
| CN113103632A (en) * | 2021-03-10 | 2021-07-13 | 郑州翱翔医药科技股份有限公司 | Production method of double-layer gasket for clamp type bottle |
-
2021
- 2021-11-05 CN CN202111303844.XA patent/CN114103137A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH282689A (en) * | 1949-11-21 | 1952-05-15 | Gustaf Wastenson Erik | Insert for bottle closure caps and process for their manufacture. |
| CN101148514A (en) * | 2006-09-20 | 2008-03-26 | 张康然 | Manufacturing method for composite plastic sheet and application thereof |
| JP2009208795A (en) * | 2008-02-29 | 2009-09-17 | Universal Seikan Kk | Cap with liner and bottle with cap |
| CN101891031A (en) * | 2009-05-23 | 2010-11-24 | 环宇制罐株式会社 | Liner-provided cap and cap-provided threaded container |
| CN202193297U (en) * | 2011-07-14 | 2012-04-18 | 孟州市冠达包装科技有限责任公司 | Inner pad of beverage package bottle cover |
| JP2014177291A (en) * | 2013-03-14 | 2014-09-25 | Universal Seikan Kk | Container with cap and cap |
| CN108883602A (en) * | 2016-04-06 | 2018-11-23 | 德尼培股份有限公司 | The tab lining of heat lamination |
| CN106003740A (en) * | 2016-05-26 | 2016-10-12 | 广州晶品智能压塑科技股份有限公司 | Forming method of compression molding bottle caps |
| CN206050472U (en) * | 2016-09-12 | 2017-03-29 | 成都海川制盖有限公司 | Aluminium pot lid |
| WO2018205326A1 (en) * | 2017-05-10 | 2018-11-15 | 佛山市同骏环保科技有限公司 | Adhesive-free bottle cap gasket and/or padding and preparation method therefor |
| CN113103632A (en) * | 2021-03-10 | 2021-07-13 | 郑州翱翔医药科技股份有限公司 | Production method of double-layer gasket for clamp type bottle |
Non-Patent Citations (1)
| Title |
|---|
| 周祥兴: "《中国塑料制品配方大全》", 31 May 1999, 中国物资出版社, pages: 208 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8071004B2 (en) | Closure having band with internal thread formed by impression | |
| US5769255A (en) | Plastic container closure with high sealing precision | |
| CA2418015C (en) | Closure cap with injection molded annular gasket and method of making same | |
| AU730619B2 (en) | Plastic closure | |
| CN101005997A (en) | Composite closure with barrier end panel | |
| US3883025A (en) | Gaskets for container closures | |
| JP4443006B2 (en) | Plastic cap with excellent opening and closing performance and sealing performance | |
| CN1646384A (en) | Plastic barrier closure and method of fabrication | |
| US5207340A (en) | Snap-on closure with discontinuous annular lip | |
| CN216993412U (en) | Bottle cap composite gasket | |
| CN114103137A (en) | Bottle cap inner pad and preparation method thereof | |
| CN86106857A (en) | Plastic container closure with moulded liner | |
| CA1214610A (en) | No-drip pouring lip and process for manufacturing same | |
| US3291332A (en) | Closure device | |
| CN1209269C (en) | Plastic cap with gasket | |
| US4951830A (en) | Snap-on closure with corking skirt | |
| MXPA05001263A (en) | Reduced application energy closure. | |
| US2604223A (en) | Preformed bottle cap | |
| US3101992A (en) | Method for making caps | |
| US3851784A (en) | Seal structure | |
| JP4540049B2 (en) | Method for manufacturing metal cap with sealing liner | |
| WO2005075313A1 (en) | Tamper resistant container and cap | |
| US4722448A (en) | Plastic bottle caps | |
| CN112550887A (en) | Blow molded container with high barrier layer | |
| US4968514A (en) | Beer bottle with fully reacted thermoplastic polyurethane crown capliner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |