CN110105883B - Preparation method of protective film coiled material - Google Patents
Preparation method of protective film coiled material Download PDFInfo
- Publication number
- CN110105883B CN110105883B CN201910412154.4A CN201910412154A CN110105883B CN 110105883 B CN110105883 B CN 110105883B CN 201910412154 A CN201910412154 A CN 201910412154A CN 110105883 B CN110105883 B CN 110105883B
- Authority
- CN
- China
- Prior art keywords
- film
- product
- carrier
- hand
- tearing
- 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.)
- Active
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/40—Adhesives in the form of films or foils characterised by release liners
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Adhesive Tapes (AREA)
- Packages (AREA)
Abstract
The invention provides a preparation method of a protective film coiled material, which comprises the steps of preparing protective films on the coiled material in batches, adhering a transition protective film to the surface of a product film, ensuring the cleanliness of the surface of the product film in the preparation process, and cutting a carrier tape film by a punching cutter from the bottom surface of the carrier tape film to cut off the carrier tape film so as to cut out the shape of a hand-tearing part; then tear the waste material that removes a plurality of hand positions of tearing through the sticky tape once only, very big improvement efficiency realizes the mass production of coiled material, and the production speed is fast, efficient, and the quality obtains guaranteeing.
Description
Technical Field
The invention relates to the field of protective film preparation, in particular to a preparation method of a protective film coiled material.
Background
The application field of the protective film is wide, such as a protective film of a mobile phone screen, a protective film of a golden finger used in the production process of a circuit board and the like. In order to ensure the cleanliness of the protective film before use, the protective film is usually attached to the carrier film. Along with the improvement of technique, for making things convenient for the protection film to tear from the carrier band membrane, can set up the hand of inviscid and tear the portion on the protection film, nevertheless in preparation process, it makes the processing procedure degree of difficulty increase to increase the hand to tear the portion, if when the carrier band membrane is surely downloaded in the position of hand tearing the portion, still paste on the protection film because of the carrier band membrane that cuts off, can't drop automatically, need artifical manual excision, the degree of difficulty is big, and make the product fold appear easily and lead to the yield to descend, can't realize quick, efficient production and preparation.
Disclosure of Invention
Therefore, the invention provides a preparation method of the protective film coiled material, which can be used for producing the protective film rapidly and efficiently.
In order to achieve the purpose, the technical scheme provided by the invention is as follows:
a preparation method of a protective film coiled material comprises the following steps:
a1, providing a raw material coiled material, wherein the raw material coiled material comprises a carrier tape film and a product film which are arranged in a stacked mode, and the bottom surface of the product film is coated with an adhesive layer and is attached to the surface of the carrier tape film through the adhesive layer;
a2, unwinding the raw material coiled material, attaching a transition protective film on the surface of the product film, wherein the bottom surface of the transition protective film is coated with a glue layer and is attached to the surface of the product film through the glue layer;
a3, cutting the carrier film from the bottom surface of the carrier film by a punching cutter to cut off the carrier film so as to cut out the shape of a hand-tearing part;
a4, providing a strip-shaped adhesive tape, and adhering the carrier tape film waste at each hand tearing part position by the adhesive tape; tearing off the adhesive tape and the cut carrier tape film waste at the hand-tearing position, and exposing the adhesive layer on the bottom surface of the product film at the hand-tearing position;
a5, sticking a hand-tearing film without a glue layer on the glue layer exposed out of the bottom surface of the product film at the hand-tearing position;
a6, tearing off the transition protection film, and cutting the product film from the surface of the product film to the cutting of the product film by a punching cutter so as to cut out a finished product pattern, wherein the finished product pattern comprises the hand tearing part;
and A7, tearing off the waste film of the product except the finished product, and rolling.
Further, between the step a5 and the step a6, the method further comprises:
step A5-6, attaching a carrier film to the bottom surface of the carrier film;
and in step a6, the operations are simultaneously as follows: the punching cutter cuts into the carrier film from the surface of the product film to cut the carrier film so as to cut the coiled material into a plurality of sections in the width direction, and then the carrier film is torn off.
Further, between the step a6 and the step a7, the method further comprises:
step A6-7-1, attaching a carrier film to the bottom surface of the carrier film;
and step A6-7-2, cutting the carrier film from the surface of the product film by a punching cutter to cut the carrier film so as to cut the coiled material into a plurality of sections in the width direction, and tearing off the carrier film.
Furthermore, the carrier film is a release film, the surface of the carrier film is coated with a glue layer and is attached to the bottom surface of the release film through the glue layer, the glue layer on the surface of the carrier film is made of silica gel with viscosity, and the adhesive force of the silica gel is not less than 60 g.
Further, step a5 specifically includes the following steps:
a51, providing a whole hand tear film, wherein the whole hand tear film is attached to the bottom surface of the carrier tape film, and the hand tear film is fixedly adhered to the adhesive layer on the bottom surface of the product film exposed at the hand tear position;
a52, cutting the whole piece of hand-torn film by a punching knife, cutting off the part fixedly adhered to the product film from other parts, and excluding other parts not fixedly adhered to the product film.
Furthermore, the glue layer coated on the bottom surface of the product film is acrylic glue.
Furthermore, the glue layer coated on the bottom surface of the transition protective film is a low-viscosity glue layer.
Further, the adhesive force of the adhesive layer coated on the bottom surface of the transition protective film is 5 g.
Furthermore, base belt parts which are not punched are reserved at the head end and the tail end of the raw material coiled material.
Further, the length of the base band part is 1m-2 m.
Through the technical scheme provided by the invention, the method has the following beneficial effects:
preparing a protective film on a coiled material in batch, attaching a transition protective film to the surface of a product film, ensuring the cleanliness of the surface of the product film in the preparation process, and cutting a carrier tape film from the bottom surface of the carrier tape film by a punching cutter to cut off the carrier tape film so as to cut out the shape of a hand-tearing part; then tear the waste material that removes a plurality of hand positions of tearing through the sticky tape once only, very big improvement efficiency realizes the mass production of coiled material, and the production speed is fast, efficient, and the quality obtains guaranteeing.
Drawings
FIG. 1 is a block diagram showing a process for manufacturing a protective film roll according to a first embodiment;
FIG. 2 is a first schematic flow chart illustrating a first method for manufacturing a protective film roll according to an embodiment;
FIG. 3 is a schematic flow chart illustrating a second method for manufacturing a protective film roll according to the first embodiment;
FIG. 4 is a third schematic flow chart illustrating a manufacturing method of a protective film roll according to a first embodiment;
FIG. 5 is a fourth schematic flow chart illustrating a manufacturing method of a protective film roll according to the first embodiment;
FIG. 6 is a schematic flow chart illustrating a fifth method for manufacturing a protective film roll according to an embodiment;
fig. 7 is a flow structure diagram illustrating a sixth method for manufacturing a protective film roll according to an embodiment;
fig. 8 is a schematic flow structure diagram illustrating a manufacturing method of a protective film roll according to a second embodiment.
Detailed Description
To further illustrate the various embodiments, the invention provides the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments. Those skilled in the art will appreciate still other possible embodiments and advantages of the present invention with reference to these figures. Elements in the figures are not drawn to scale and like reference numerals are generally used to indicate like elements.
The invention will now be further described with reference to the accompanying drawings and detailed description.
Referring to fig. 1, the preparation method of the protective film roll provided in this embodiment includes the following steps:
a1, providing a raw material coil, as shown in fig. 2, the raw material coil comprises a carrier film 10 and a product film 20 which are arranged in a stacking way, the bottom surface of the product film 20 is coated with a glue layer 21, and the product film is attached to the surface of the carrier film 10 through the glue layer 21;
a2, unwinding the raw material coil, as shown in FIG. 3, attaching a transition protective film 30 on the surface of the product film 20, wherein the bottom surface of the transition protective film 30 is coated with an adhesive layer 31, and is attached to the surface of the product film 20 through the adhesive layer 31;
a3, cutting the carrier film 10 from the bottom of the carrier film 10 to cut off the carrier film 10 to cut out the shape of the hand-tearing part;
a4, as shown in fig. 4, providing a strip of adhesive tape 40, wherein the adhesive tape 40 adheres the carrier tape film waste 11 at each hand tearing position; tearing off the adhesive tape 40 and the cut carrier tape film waste 11 at the hand-tearing position, and exposing the adhesive layer 21 on the bottom surface of the product film 20 at the hand-tearing position; as shown in fig. 5, a hollow area 101 is formed at a position where the carrier film waste 11 is torn off.
A5, attaching the hand-tearing film 50 without adhesive layer to the adhesive layer 21 exposed from the bottom surface of the product film 20 at the hand-tearing position, as shown in fig. 6;
a6, tearing off the transition protection film 30, and cutting the product film 20 from the surface of the product film 20 to the cutting of the product film 20 by a punching cutter so as to cut out the figure of the finished product, wherein the figure of the finished product comprises the hand tearing part;
a7, tearing off the waste product film 20 except the finished product, and rolling as shown in figure 7.
Preparing a protective film on a coiled material in batch, attaching a transition protective film 30 to the surface of a product film 20, ensuring the cleanliness of the surface of the product film 20 in the preparation process, and cutting a punching cutter into the carrier tape film 10 from the bottom surface of the carrier tape film 10 to cut off the carrier tape film 10 so as to cut out the shape of a hand-tearing part; then tear the carrier band membrane waste material 11 of a plurality of hand tear position once only through sticky tape 40, very big improvement efficiency realizes the batch production of coiled material, and the production speed is fast, efficient, and the quality obtains guaranteeing.
Further, in this embodiment, in step a4, the strip-shaped adhesive tape 40 is a transparent adhesive tape widely distributed in the existing market, which is convenient for material preparation, but in other embodiments, the adhesive tape may also be an adhesive tape with a specific viscosity.
Further, in this embodiment, the step a5 specifically includes the following steps: a51, providing a whole hand tear film, adhering the whole hand tear film to the bottom surface of the carrier tape film 10, and fixedly adhering the hand tear film to the adhesive layer 21 on the bottom surface of the product film 20 exposed at the hand tear position; a52, cutting the whole piece of hand-torn film by a punching knife, cutting off the part fixedly adhered to the product film 20 from other parts, and excluding other parts not fixedly adhered to the product film. Thus, the hand tear film 50 can be simultaneously attached to each hand tear portion, and the position is accurate. Of course, in other embodiments, the corresponding patterns of the hand-tearing film 50 may be punched in advance and then attached to the hand-tearing film respectively, and by using this method, compared with the above method, the processing time is longer and the accuracy is poorer.
Further, in this embodiment, the hand tearing film 50 is a mylar film with a color, which can be distinguished from other film layers, so that a user can find the hand tearing position more intuitively; and the surface of the Mylar film is rough and the Mylar film is gripped more tightly.
Further, in this embodiment, the carrier tape film 10 is a release film, the adhesive layer 21 coated on the bottom surface of the product film 20 is an acrylic adhesive, the surface of the release film 10 has a separable thin film, and the adhesive force between the release film and the product film can be reduced by matching with the acrylic adhesive, so that the carrier tape film waste 11 is more easily separated in the process of removing the waste in step a 4. Of course, in other embodiments, other types of films may be used for the carrier film 10, and the adhesive force between the carrier film and the product film is stronger, and the material release effect is poor, which can be compensated by increasing the adhesive viscosity of the adhesive tape in step a 4.
Further, in this embodiment, the glue layer 31 coated on the bottom surface of the transition protection film 30 is a low-viscosity glue layer, and when the transition protection film is subsequently torn off, the glue layer 31 coated on the bottom surface of the transition protection film 30 does not remain or remains on the surface of the product film in a very small amount, so that no influence is caused. Still further, the adhesive force of the glue layer 31 of the bottom surface of the transition protective film 30 is preferably 5g, which can ensure that the adhesive force does not release halfway in the manufacturing process.
Furthermore, in this embodiment, the base band portions that are not punched are reserved at both the head end and the tail end of the raw material coil, so as to play a role in protection. More specifically, the base band portion has a length of 1m to 2m, preferably 1.5 m.
Example two
The method for preparing a protective film roll provided in this embodiment is substantially the same as the method in the first embodiment, except that: referring to fig. 8, in the present embodiment, between step a5 and step a6, the method further includes:
step A5-6, attaching a carrier film 60 to the bottom surface of the carrier film 10;
and in step a6, the operations are simultaneously as follows: the punching blade cuts into the carrier film 10 from the surface of the product film 20 to cut the web into a plurality of pieces in the width direction, and then removes the carrier film 60.
During preparation, in order to ensure the fault tolerance of processing, a raw material coiled material with the width larger than that of a finished product is often selected, and redundant rim charge is cut off in the preparation process; alternatively, the width of the selected raw material coil is the sum of the plurality of finished products, and the plurality of finished products arranged in parallel are cut apart while cutting off the excess trimmings in the manufacturing process.
In this embodiment, after step a5 is completed, the carrier film 60 is attached to the bottom surface of the carrier film 10, and when a finished product pattern is cut on the product film, another set of punching blades is added to simultaneously cut the carrier film 10 from the surface of the product film 20 to cut the carrier film, so as to cut the roll material into multiple segments in the width direction, thereby saving the manufacturing time and improving the efficiency. The carrier film serves to hold the cut material web.
Further, in this embodiment, the carrier film 10 is a release film, the surface of the carrier film 60 is coated with a glue layer 61, and is attached to the bottom surface of the release film 10 through the glue layer 61, the glue layer 61 on the surface of the carrier film 60 is made of a viscous silicone, and the adhesive force thereof is not less than 60 g. The adhesive layer of silica gel and the release film have good adhesive force and can be firmly adhered.
EXAMPLE III
The method for preparing the protective film coil provided by the embodiment is substantially the same as the method of the second embodiment, except that: the present embodiment moves the steps in the second embodiment to between step a6 and step a7, that is, on the basis of the first embodiment, the following steps are added between step a6 and step a 7:
step A6-7-1, attaching a carrier film 60 to the bottom surface of the carrier film 10;
step a6-7-2, a punching cutter cuts into the carrier film 10 from the surface of the product film 20 to cut the web into a plurality of sections in the width direction, and then the carrier film 60 is peeled off.
In this embodiment, the step in the second embodiment is shifted to between the step a6 and the step a7, that is, the punching blade first punches the pattern of the finished product, and then cuts the web into multiple segments in the width direction, and the step-by-step operation is better in precision and easier to control.
While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (8)
1. The preparation method of the protective film coiled material is characterized by comprising the following steps:
a1, providing a raw material coiled material, wherein the raw material coiled material comprises a carrier tape film and a product film which are arranged in a stacked mode, and the bottom surface of the product film is coated with an adhesive layer and is attached to the surface of the carrier tape film through the adhesive layer;
a2, unwinding the raw material coiled material, attaching a transition protective film on the surface of the product film, wherein the bottom surface of the transition protective film is coated with a glue layer and is attached to the surface of the product film through the glue layer;
a3, cutting the carrier film from the bottom surface of the carrier film by a punching cutter to cut off the carrier film so as to cut out the shape of a hand-tearing part;
a4, providing a strip-shaped adhesive tape, and adhering the carrier tape film waste at each hand tearing part position by the adhesive tape; tearing off the adhesive tape and the cut carrier tape film waste at the hand-tearing position, and exposing the adhesive layer on the bottom surface of the product film at the hand-tearing position;
a5, sticking a hand-tearing film without a glue layer on the glue layer exposed out of the bottom surface of the product film at the hand-tearing position;
a6, tearing off the transition protection film, and cutting the product film from the surface of the product film to the cutting of the product film by a punching cutter so as to cut out a finished product pattern, wherein the finished product pattern comprises the hand tearing part;
and A7, tearing off the waste film of the product except the finished product, and rolling.
2. The production method of a protective film roll according to claim 1, characterized in that: between step A5 and step A6 further comprising:
step A5-6, attaching a carrier film to the bottom surface of the carrier film;
and in step a6, the operations are simultaneously as follows: the punching cutter cuts into the carrier film from the surface of the product film to cut the carrier film so as to cut the coiled material into a plurality of sections in the width direction, and then the carrier film is torn off.
3. The production method of a protective film roll according to claim 1, characterized in that: between step A6 and step A7 further comprising:
step A6-7-1, attaching a carrier film to the bottom surface of the carrier film;
and step A6-7-2, cutting the carrier film from the surface of the product film by a punching cutter to cut the carrier film so as to cut the coiled material into a plurality of sections in the width direction, and tearing off the carrier film.
4. The production method of a protective film roll according to claim 1, characterized in that: the step a5 specifically includes the following steps:
a51, providing a whole hand tear film, wherein the whole hand tear film is attached to the bottom surface of the carrier tape film, and the hand tear film is fixedly adhered to the adhesive layer on the bottom surface of the product film exposed at the hand tear position;
a52, cutting the whole piece of hand-torn film by a punching knife, cutting off the part fixedly adhered to the product film from other parts, and excluding other parts not fixedly adhered to the product film.
5. The production method of a protective film roll according to claim 1, characterized in that: the carrier tape film is a release film, and the adhesive layer coated on the bottom surface of the product film is acrylic adhesive.
6. The production method of a protective film roll according to claim 1, characterized in that: the glue layer coated on the bottom surface of the transition protective film is a low-viscosity glue layer.
7. The production method of a protective film roll according to claim 1, characterized in that: and base belt parts which are not punched are reserved at the head end and the tail end of the raw material coiled material.
8. The production method of a protective film roll according to claim 7, characterized in that: the length of the base band part is 1m-2 m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910412154.4A CN110105883B (en) | 2019-05-17 | 2019-05-17 | Preparation method of protective film coiled material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910412154.4A CN110105883B (en) | 2019-05-17 | 2019-05-17 | Preparation method of protective film coiled material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110105883A CN110105883A (en) | 2019-08-09 |
| CN110105883B true CN110105883B (en) | 2021-08-10 |
Family
ID=67490703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910412154.4A Active CN110105883B (en) | 2019-05-17 | 2019-05-17 | Preparation method of protective film coiled material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110105883B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110744827A (en) * | 2019-09-09 | 2020-02-04 | 中山市川广电子科技有限公司 | Integrated laminating process for easy-to-tear display panel |
| CN110591589A (en) * | 2019-10-08 | 2019-12-20 | 东莞市优达胶粘制品有限公司 | CG protection film-based production process |
| CN111017352A (en) * | 2019-12-25 | 2020-04-17 | 黄静 | Composite membrane and method for removing centrifugal membrane by using same |
| CN112175533B (en) * | 2020-09-30 | 2022-04-29 | 汇精（厦门）电子科技有限公司 | Double-sided adhesive film of vehicle-mounted display screen and preparation method |
| CN112592673B (en) * | 2020-12-14 | 2021-09-10 | 中国科学院大连化学物理研究所 | Protective film and batch preparation method and application thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5597633A (en) * | 1991-11-18 | 1997-01-28 | Pelikan Gmbh | Transfer adhesive tape |
| CN103709950A (en) * | 2013-12-20 | 2014-04-09 | 意力(广州)电子科技有限公司 | Double-sided adhesive tape profile and production method thereof |
| CN104178046A (en) * | 2014-08-19 | 2014-12-03 | 东莞市达瑞电子有限公司 | Automatic machining and forming machine of adhesive sticker film of mobile phone |
| CN107353841A (en) * | 2017-08-14 | 2017-11-17 | 东莞市哲华电子有限公司 | A kind of low cost production thereof of Mylar pieces |
| CN109080241A (en) * | 2018-08-28 | 2018-12-25 | 厦门市驰晟胶带有限公司 | A kind of mobile phone factory protective film and preparation method thereof |
| CN208649195U (en) * | 2018-08-21 | 2019-03-26 | 厦门市驰晟胶带有限公司 | A kind of golden finger protective film |
-
2019
- 2019-05-17 CN CN201910412154.4A patent/CN110105883B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5597633A (en) * | 1991-11-18 | 1997-01-28 | Pelikan Gmbh | Transfer adhesive tape |
| CN103709950A (en) * | 2013-12-20 | 2014-04-09 | 意力(广州)电子科技有限公司 | Double-sided adhesive tape profile and production method thereof |
| CN104178046A (en) * | 2014-08-19 | 2014-12-03 | 东莞市达瑞电子有限公司 | Automatic machining and forming machine of adhesive sticker film of mobile phone |
| CN107353841A (en) * | 2017-08-14 | 2017-11-17 | 东莞市哲华电子有限公司 | A kind of low cost production thereof of Mylar pieces |
| CN208649195U (en) * | 2018-08-21 | 2019-03-26 | 厦门市驰晟胶带有限公司 | A kind of golden finger protective film |
| CN109080241A (en) * | 2018-08-28 | 2018-12-25 | 厦门市驰晟胶带有限公司 | A kind of mobile phone factory protective film and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110105883A (en) | 2019-08-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110105883B (en) | Preparation method of protective film coiled material | |
| CN105086858B (en) | A kind of gum and processing mold group and its processing technology | |
| CN109401663B (en) | Manufacturing process of double-sided adhesive tape of silica gel pad | |
| CN109677089A (en) | A kind of camera head protecting film, die-cutting production technique and device | |
| CN112847650A (en) | Combined type die cutting process and die cutting system for volume paper | |
| CN108003808B (en) | Automatic production line and method for adhesive tape | |
| CN108603077A (en) | Adhesive sheet and its application method | |
| CN210821015U (en) | Optical film cutting device | |
| CN109664593B (en) | Die cutting processing method for liquid state offset printing protective film | |
| CN112405703B (en) | Large-size gum die cutting process | |
| CN108858446B (en) | Die cutting method of irregular die-cut piece | |
| CN109605479A (en) | A kind of manufacturing method of the die cutting product using cut open cutter jig | |
| CN101098037B (en) | Method for producing paster type antenna | |
| CN109483642A (en) | A kind of FPC finished product double-sided adhesive exempts to tear the clicking technique of release film | |
| CN113894869B (en) | Method and equipment for punching and forming reserved gap waterproof foam double faced adhesive tape | |
| CN112776086B (en) | Narrow strip die cutting piece capable of preventing poor stripping and manufacturing method thereof | |
| CN111136726B (en) | Concentric die cutting processing technology | |
| CN214644314U (en) | Production equipment for multilayer special-shaped conductive adhesive tape and conductive copper foil composite assembly | |
| CN115366178A (en) | Exposed rubber die-cutting piece containing protective film and manufacturing method thereof | |
| CN113334783A (en) | Tone tuning net and steel net combined punching forming process and equipment | |
| CN111086059B (en) | Mylar processing technology of local gum | |
| CN214447026U (en) | Modular mixing paper die cutting system | |
| CN108140337B (en) | Label making method and self-coated label | |
| CN111847079A (en) | Method for manufacturing automatic roll type adhesive tape | |
| CN108789608A (en) | A kind of hot melt adhesive is without knife print technique |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |