CN105523275A - Electromagnetic induction sealing gasket with an acting component, manufacturing method and sealing method - Google Patents
Electromagnetic induction sealing gasket with an acting component, manufacturing method and sealing method Download PDFInfo
- Publication number
- CN105523275A CN105523275A CN201610073066.2A CN201610073066A CN105523275A CN 105523275 A CN105523275 A CN 105523275A CN 201610073066 A CN201610073066 A CN 201610073066A CN 105523275 A CN105523275 A CN 105523275A
- Authority
- CN
- China
- Prior art keywords
- layer
- electromagnetic induction
- seal gasket
- sealing
- film
- 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
Classifications
-
- 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
- B65D55/00—Accessories for container closures not otherwise provided for
-
- 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
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
-
- 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
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal 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
- B32B15/09—Layered products comprising a layer of metal comprising metal 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 comprising polyesters
-
- 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
- B32B15/00—Layered products comprising a layer of metal
- B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
-
- 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
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
-
- 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
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
-
- 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
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
-
- 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
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
- B32B37/1284—Application of adhesive
-
- 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
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/0004—Cutting, tearing or severing, e.g. bursting; Cutter details
-
- 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
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Closures For Containers (AREA)
Abstract
The invention discloses an electromagnetic induction sealing gasket with an acting component, a manufacturing method and a sealing method. The electromagnetic induction sealing gasket is formed by compositing a plurality of layers of materials, namely a heat-sealing layer, an aluminum foil layer, a heat-insulating layer, a folded film layer and a top film layer from bottom to top in sequence; and the layers are glued together. According to the invention, the aluminum foil layer is heated by electromagnetic induction and transmits heat to the heat-sealing layer to smelt the heat-sealing layer to achieve an adhesive bottleneck sealing effect. The acting component formed after sealing comprises two glued layers of PET films, can allow removing the gasket left or right or in any direction, is very firm and is difficult to break. The manufacturing method can realize integral forming and is suitable for automatic industrial production. The electromagnetic induction sealing gasket is applicable to bottleneck sealing in the fields of medicines, health-care products, foodstuff, seasonings, cosmetics, washing products and the like, radically solves the problem that a conventional bottleneck sealing gasket is difficult to remove, and has a wide application prospect.
Description
Technical field
The present invention relates to seal gasket technical field, specifically, relate to a kind of electromagnetic induction seal gasket and manufacture method and sealing method.
Background technology
Seal gasket is more and more general in the use of industry-by-industry, as medicine, health products, food, seasonings, cosmetics, articles for washing etc.Current industrial most employing electromagnetic induction seal gasket; by electromagnetic induction sealing device, the aluminium foil layer of pad is carried out electromagnetic induction heating; make the plastic film melted by heat of pad and bottleneck contact surface; realize pad and bottle sealing; the material cut off in bottle face contacts with air, plays the effect of the material in protection bottle.
But current seal gasket all do not arrange can open pad put forth effort parts, or it is firm not to put forth effort parts, and this makes user very inconvenient when opening pad, and edge tool often will be used to cut pad, thus dangerous hidden danger.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, providing a kind of with putting forth effort parts and firm electromagnetic induction seal gasket.
To achieve these goals, the present invention adopts following technical scheme:
A kind of electromagnetic induction seal gasket, is composited by multilayer material, be successively from the bottom up hot sealing layer, aluminium foil layer, thermal insulation layer, film to fold and film top layer, bond through glue between each layer.
The effect of hot sealing layer is after melted by heat, play the effect of bonding bottle sealing.
Generate heat after the effect of aluminium foil layer is through electromagnetic induction, to hot sealing layer transferring heat, make hot sealing layer melt bonding bottleneck.
The effect of thermal insulation layer is: 1, isolated aluminium foil layer heat passes to film to fold and film top layer, and avoid film to be heated to fold and film top layer and to bond with plastic bottle lid, impact is uncapped.2, hot sealing layer is given and aluminium foil layer provides deflection, not curling after making coiled material puncher for spacer strip be cut into circle.3, by controlling the thickness of the adjustable whole pad of thickness of thermal insulation layer.
The effect of film to fold is: to pad carry out die-cut after, can be formed and put forth effort parts.What namely film became pad top to the semi-circular portions that fold and film top layer are fitted puts forth effort part.
As preferably, in above-mentioned electromagnetic induction seal gasket, the thin layer for strengthening deflection or thickness is set between aluminium foil layer and thermal insulation layer.
As preferably, in above-mentioned electromagnetic induction seal gasket, described film is polyethylene terephthalate (PET) or PEN (PEN) to the material of fold, film top layer or thin layer.
As preferably, in above-mentioned electromagnetic induction seal gasket, after glue bonding, between each layer, arrive the peel strength of more than 2N/10mm.
Another object of the present invention is to provide the manufacture method of above-mentioned electromagnetic induction seal gasket, comprises the steps:
Step 1: use dry compound machine to bond after the thin layer gluing of coiled material with aluminium foil layer, obtained first complex;
Step 2: by step 1 gained first complex, by bonding with hot sealing layer after dry compound machine gluing, obtained second complex;
Step 3: by the film of coiled material to fold and film top layer respectively through after gluing, bond with thermal insulation layer, obtained 3rd complex;
Step 4: after the second complex gluing of rolling, with the 3rd composite bodies, obtained electromagnetic induction seal gasket.
A further object of the present invention is to provide and utilizes above-mentioned electromagnetic induction seal gasket to carry out the method for sealing, comprise the steps: step 1: using the film of coiled material electromagnetic induction seal gasket to the broken line of fold as diameter, circular die is adopted to carry out die-cut, the obtained circular seal gasket putting forth effort parts with top;
Step 2: loaded towards bottle cap by the top layer of circular seal gasket, then pins bottleneck by the bottle cap with seal gasket; Finally use electromagnetic induction that aluminium foil layer is generated heat, transferring heat, to hot sealing layer, makes hot sealing layer melt bonding bottleneck and seals; Naturally, after cooling, unscrewing cap, catches and puts forth effort parts and just can open circular seal gasket.
Compared with prior art, the present invention has following beneficial effect:
Of the present invention with putting forth effort the electromagnetic induction seal gasket of parts by multilayer material compound, be successively from the bottom up hot sealing layer, aluminium foil layer, thermal insulation layer, film to fold and film top layer, after glue bonding, arrive the peel strength of more than 2N/10mm between each layer.Aluminium foil layer is generating heat after electromagnetic induction, and transferring heat, to hot sealing layer, makes hot sealing layer melt, and plays the effect of bonding bottle sealing.Then carry out die-cut by pad according to bottleneck size, die-cut rear film is raised formation to fold along broken line and is puted forth effort parts, and pulling is puted forth effort parts and just can be opened pad easily.The parts of putting forth effort formed after the sealing of this electromagnetic induction seal gasket are bonded by the two-layer PET film in left and right, to the left or to the right or arbitrarily can open pad in other directions, very firm, not frangibility.Manufacture method of the present invention can be one-body molded, is suitable for automatic industrial and produces.This electromagnetic induction seal gasket is applicable to the bottle sealing in medicine, health products, food, seasonings, cosmetics, articles for washing etc. field, thoroughly solves the problem that existing bottle mouth sealing pad is difficult to open, has a extensive future.
Accompanying drawing explanation
Fig. 1 is the electromagnetic induction seal gasket multiple-structure schematic diagram with putting forth effort parts;
Fig. 2 is electromagnetic induction seal gasket plane in blocks and die-cut schematic diagram;
Fig. 3 be electromagnetic induction seal gasket put forth effort parts start come section drawing;
Fig. 4 puts forth effort parts to start the outside schematic diagram come.
Detailed description of the invention
As shown in Figure 1, a kind of electromagnetic induction seal gasket, is composited by multilayer material, be successively from the bottom up hot sealing layer 1, aluminium foil layer 2, PET film layer 3, thermal insulation layer 4, PET film to fold 5 and PET film top layer 6, bond through glue 7a between each layer.After glue bonding, the peel strength of more than 2N/10mm is arrived between each layer.
The preparation method of above-mentioned electromagnetic induction seal gasket, comprises the steps:
Step 1: use dry compound machine to bond after thin layer 3 gluing of coiled material with aluminium foil layer 2, obtained first complex 12;
Step 2: by step 1 gained first complex 12, by bonding with hot sealing layer 1 after dry compound machine gluing, obtained second complex 13;
Step 3: by the film of coiled material to fold 5 and film top layer 6 respectively through after gluing, bond with thermal insulation layer 4, obtained 3rd complex 16;
Step 4: after the second complex 13 gluing of rolling, bond with the 3rd complex 16, obtained electromagnetic induction seal gasket 11.
As shown in Figure 2, during work, on automatic production line, step 1: using the film of coiled material electromagnetic induction seal gasket to the broken line of fold 5 as diameter, adopt circular die to carry out die-cut, the obtained circular seal gasket putting forth effort parts 8 with top;
Step 2: loaded towards bottle cap by the top layer of circular seal gasket, then pins bottleneck by the bottle cap with seal gasket; Finally use electromagnetic induction that aluminium foil layer 2 is generated heat, transferring heat, to hot sealing layer 1, makes hot sealing layer 1 melt bonding bottleneck and seals; Naturally, after cooling, unscrewing cap, catches and puts forth effort parts 8 and just can open circular seal gasket.Electromagnetic induction seal gasket is puted forth effort parts and is started next section drawing as Fig. 3; Put forth effort parts and start next outside schematic diagram as Fig. 4.
Claims (6)
1. an electromagnetic induction seal gasket, is characterized in that being composited by multilayer material, be successively from the bottom up hot sealing layer (1), aluminium foil layer (2), thermal insulation layer (4), film to fold (5) and film top layer (6), bond through glue between each layer.
2. electromagnetic induction seal gasket as claimed in claim 1, is characterized in that the thin layer (3) be also provided with between aluminium foil layer and thermal insulation layer for strengthening deflection or thickness.
3. electromagnetic induction seal gasket as claimed in claim 1 or 2, is characterized in that described film is PET or PEN to the material of fold, film top layer or thin layer.
4. electromagnetic induction seal gasket as claimed in claim 1, is characterized in that the peel strength arriving more than 2N/10mm between each layer after glue bonding.
5. the manufacture method of electromagnetic induction seal gasket described in claim 2, is characterized in that comprising the steps:
Step 1: use dry compound machine to bond after thin layer (3) gluing of coiled material with aluminium foil layer (2), obtained first complex (12);
Step 2: by step 1 gained first complex (12), by bonding with hot sealing layer (1) after dry compound machine gluing, obtained second complex (13);
Step 3: by the film of coiled material to fold (5) and film top layer (6) respectively through after gluing, bond with thermal insulation layer (4), obtained 3rd complex (16);
Step 4: after the second complex (13) gluing of rolling, bonds with the 3rd complex (16), obtained electromagnetic induction seal gasket.
6. utilize electromagnetic induction seal gasket described in claim 1 to carry out the method for sealing, it is characterized in that comprising the steps:
Step 1: using the film of coiled material electromagnetic induction seal gasket to the broken line of fold (5) as diameter, adopt circular die to carry out die-cut, the obtained circular seal gasket putting forth effort parts (8) with top;
Step 2: loaded towards bottle cap by the top layer of circular seal gasket, then pins bottleneck by the bottle cap with seal gasket; Finally use electromagnetic induction that aluminium foil layer (2) is generated heat, transferring heat, to hot sealing layer (1), makes hot sealing layer (1) melt bonding bottleneck and seals; Naturally, after cooling, unscrewing cap, catches and puts forth effort parts (8) and just can open circular seal gasket.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610073066.2A CN105523275A (en) | 2016-02-01 | 2016-02-01 | Electromagnetic induction sealing gasket with an acting component, manufacturing method and sealing method |
| PCT/CN2016/093803 WO2017133209A1 (en) | 2016-02-01 | 2016-08-06 | Electromagnetic induction sealing gasket with force-applying part and manufacturing method and sealing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610073066.2A CN105523275A (en) | 2016-02-01 | 2016-02-01 | Electromagnetic induction sealing gasket with an acting component, manufacturing method and sealing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105523275A true CN105523275A (en) | 2016-04-27 |
Family
ID=55765874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610073066.2A Pending CN105523275A (en) | 2016-02-01 | 2016-02-01 | Electromagnetic induction sealing gasket with an acting component, manufacturing method and sealing method |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN105523275A (en) |
| WO (1) | WO2017133209A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017133209A1 (en) * | 2016-02-01 | 2017-08-10 | 广州施力包装材料有限公司 | Electromagnetic induction sealing gasket with force-applying part and manufacturing method and sealing method |
| CN111032523A (en) * | 2017-08-16 | 2020-04-17 | 劳士垫片马来西亚有限公司 | Seal for a container |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1354724A (en) * | 1999-05-04 | 2002-06-19 | 阿尔费尔德塑料制品赫尔姆迈尔有限公司 | Sealing disc and film composite for closure of container |
| US6866926B1 (en) * | 2000-05-09 | 2005-03-15 | Illinois Tool Works Inc. | Polymer lined sealing member for a container |
| CN101652293A (en) * | 2007-03-28 | 2010-02-17 | 藤森工业株式会社 | Method of and apparatus for manufacturing seal film, method of manufacturing container with inner seal, inner seal material, and method of sealing container with cap by use of the inner seal material |
| CN204076950U (en) * | 2014-09-10 | 2015-01-07 | 北京汇金英和科技有限公司 | Electromagnetic induction cap liner |
| CN104755388A (en) * | 2012-09-05 | 2015-07-01 | 赛利格密封产品公司 | Tamper evident tabbed sealing member having a foamed polymer layer |
| CN104755387A (en) * | 2012-09-05 | 2015-07-01 | 赛利格密封产品公司 | Tabbed inner seal |
| CN205327758U (en) * | 2016-02-01 | 2016-06-22 | 广州施力包装材料有限公司 | Electromagnetic induction seals gasket with put forth effort part |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5702015A (en) * | 1994-05-04 | 1997-12-30 | Selig Sealing Products, Inc. | Closure seal for container |
| CN201721754U (en) * | 2010-04-22 | 2011-01-26 | 鼎贞(厦门)实业有限公司 | Semicircular pull disc single-piece type sealing gasket |
| KR101407569B1 (en) * | 2014-01-15 | 2014-07-02 | 주식회사 씰앤팩 | Vassel sealing member and producing method therefor |
| CN105523275A (en) * | 2016-02-01 | 2016-04-27 | 广州施力包装材料有限公司 | Electromagnetic induction sealing gasket with an acting component, manufacturing method and sealing method |
-
2016
- 2016-02-01 CN CN201610073066.2A patent/CN105523275A/en active Pending
- 2016-08-06 WO PCT/CN2016/093803 patent/WO2017133209A1/en active Application Filing
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1354724A (en) * | 1999-05-04 | 2002-06-19 | 阿尔费尔德塑料制品赫尔姆迈尔有限公司 | Sealing disc and film composite for closure of container |
| US6866926B1 (en) * | 2000-05-09 | 2005-03-15 | Illinois Tool Works Inc. | Polymer lined sealing member for a container |
| CN101652293A (en) * | 2007-03-28 | 2010-02-17 | 藤森工业株式会社 | Method of and apparatus for manufacturing seal film, method of manufacturing container with inner seal, inner seal material, and method of sealing container with cap by use of the inner seal material |
| CN104755388A (en) * | 2012-09-05 | 2015-07-01 | 赛利格密封产品公司 | Tamper evident tabbed sealing member having a foamed polymer layer |
| CN104755387A (en) * | 2012-09-05 | 2015-07-01 | 赛利格密封产品公司 | Tabbed inner seal |
| CN204076950U (en) * | 2014-09-10 | 2015-01-07 | 北京汇金英和科技有限公司 | Electromagnetic induction cap liner |
| CN205327758U (en) * | 2016-02-01 | 2016-06-22 | 广州施力包装材料有限公司 | Electromagnetic induction seals gasket with put forth effort part |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017133209A1 (en) * | 2016-02-01 | 2017-08-10 | 广州施力包装材料有限公司 | Electromagnetic induction sealing gasket with force-applying part and manufacturing method and sealing method |
| CN111032523A (en) * | 2017-08-16 | 2020-04-17 | 劳士垫片马来西亚有限公司 | Seal for a container |
| CN111032523B (en) * | 2017-08-16 | 2022-02-15 | 劳士垫片马来西亚有限公司 | Seal, method of dry lamination and method of die cutting |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2017133209A1 (en) | 2017-08-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101665174B (en) | Manufacturing method of hot melt adhesive aluminum foil sealing film | |
| CN102753447A (en) | Straight-split pouch, method for manufacturing same, and device for manufacturing the pouch | |
| CN105523275A (en) | Electromagnetic induction sealing gasket with an acting component, manufacturing method and sealing method | |
| CN104900143B (en) | A kind of logistic label and its production method | |
| CN203888322U (en) | High-barrier sealing film | |
| CN205327758U (en) | Electromagnetic induction seals gasket with put forth effort part | |
| CN107351482A (en) | A kind of aluminum-plastic packaged material of paper and preparation method suitable for resistance to cooking disinfection technique | |
| CN201660212U (en) | Aluminium foil sealing film of hot melt adhesive | |
| KR101643164B1 (en) | Packing carton | |
| CN108349167A (en) | For being molded, filling and the device and method of sealed mold and the packaging that is formed by it | |
| CN201587628U (en) | Coextrusion plastic film with knurled surface | |
| CN202414425U (en) | Paper liquid packaging material with dialysis prevention on end face and liquid packaging box thereof | |
| CN203780919U (en) | Resealable plastic uptaking container | |
| CN202703982U (en) | Gas separating and ventilating device for plastic film heat-sealing packaging | |
| CN206493667U (en) | A kind of pesticides packaging auto-filling shaping membrane | |
| JP6787999B2 (en) | Method of manufacturing the packaged part of food and the part manufactured by the above method | |
| CN202295624U (en) | Bag with easily-opened sealed edge | |
| CN204297318U (en) | A kind of without viscose type electromagnetic induction seal gasket | |
| CN204979606U (en) | Exchanging of heat -seal be can repeat and plastic wrap book or freshness protection package are opened | |
| CN202046559U (en) | Healthy food packaging film | |
| CN207425224U (en) | In-mold labels | |
| CN202152159U (en) | Electromagnetic induction seal gasket | |
| CN203019771U (en) | Polyvinyl dichloride (PVDC) composite membrane | |
| CN102502070A (en) | Paper liquid packaging material with end surface anti-dialysis function as well as processing method thereof and liquid packaging box | |
| CN104203765B (en) | Packaging body being provided with the handle part do not bondd and preparation method thereof in the one side of upper end |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160427 |
|
| RJ01 | Rejection of invention patent application after publication |