CN107599598A - A kind of windowing film covering method of paper - Google Patents
A kind of windowing film covering method of paper Download PDFInfo
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- CN107599598A CN107599598A CN201710906313.7A CN201710906313A CN107599598A CN 107599598 A CN107599598 A CN 107599598A CN 201710906313 A CN201710906313 A CN 201710906313A CN 107599598 A CN107599598 A CN 107599598A
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Abstract
The invention discloses a kind of windowing film covering method of paper, including：Step 1: using the two-sided corona film for being wherein simultaneously pre-coated with PUR, the another side of the two-sided corona film is bonded by the surface of cold rubberizing water and the paper of overlay film to be opened a window, full version overlay film of the two-sided corona film to the paper is realized, to obtain semi-finished product early stage；Step 2: semi-finished product early stage are opened a window, i.e.,：Window is die cut out in the precalculated position of semi-finished product early stage, and removes waste material caused by cross cutting, to obtain mid-term semi-finished product；Step 3, the heat-sealing film of COPP is provided with using at least one side, the one side that the heat-sealing film is provided with to COPP is overlayed on the PUR of the mid-term semi-finished product, and by hot-pressing roller by the heat-sealing film together with mid-term semi-finished product heat pressure adhesive, to obtain finished product of the paper after the overlay film that opens a window.The present invention has the advantages of technology difficulty is low, windowing overlay film finished product effect is good, production efficiency is high.
Description
Technical field
The present invention relates to a kind of windowing film covering method of paper.
Background technology
Windowing overlay film be paper coating technique in more special one kind, its in addition to the advantages of coated products,
Also make that there is visuality by the commodity of sheet package.
Existing paper windowing film covering method, step are：
A, first the paper printed is opened a window, i.e., window is die cut out in predetermined windowing position and removes cross cutting generation
Waste material.
B, the paper brushing oiliness glue by coating rubber roll to windowing.
C, paper made of step B and BOPP film are carried out by hot pressing pressing by upper and lower pressure roller, completes windowing overlay film.
In addition, before stating existing paper windowing film covering method on the implementation, following preparation need to be carried out：
First, the thickness for the BOPP film of overlay film typically should be between 0.03-0.04mm, transparency should be 90%
More than, and percent thermal shrinkage is small.
Second, before upper machine, BOPP film should be checked whether within the shelf-life, whether the rubberised layer on film is uniform, surface
Whether it is scratched, weighs wounded.The coated face of film will pass through heating roller and towards printed matter.
Third, rubber rollers and heating roller must keep clean, the pressure balance roller on both sides must rotate flexibly.
Fourth, the gap of feed rollers is adjusted and determined according to paper sheet thickness.
Fifth, selecting the BOPP film of different in width according to product size, while side should be regulated according to the requirement of product
Draw rule.
Sixth, regulate film guiding roller, make the uniform tension in order on film both sides, the flat surfaced of film is non-wrinkled.
Above-mentioned existing paper windowing film covering method has the following disadvantages：
First, because being to carry out gluing to the paper of windowing by coating rubber roll, its glue-spread number directly affect
The quality of windowing overlay film.If glue-spread is very few, it may appear that comes unglued, bonds phenomenon loosely.If glue-spread is excessive, edge of window
Edge just has glue spilling.As long as carrying out gluing to window, the window's position of its product more or less can all have glue
Occur, this just directly affects the safe and healthy and outward appearance of product.
Second, after gluing, paper could carry out overlay film after need to drying, and the length of this flash-off time is it is necessary to root
According to the characteristics of product and glue-spread size, and the humiture of environment determines that it controls difficulty very big.
3rd, because gluing is unable on line with overlay film while produces, therefore turn easily to go out during coating technique after gluing
The problem of existing paper surface wipes flower.And the paper after gluing can not be stacked largely, because a large amount of stackings occur that paper is viscous up and down
Even, the problem of viscous flower.A small amount of interlayers can only be carried out using rack to dry.When order volume is big, production difficulty is very big.
4th, because being that the paper after being opened a window with cross cutting carries out gluing, and the injustice that the paper after windowing can become by windowing
It is whole so that gluing effect is uneven, and some position glue of whole paper surface are excessive, and some position glue are very few, cause to produce
Some come unglued product, and some the problem of excessive glue occur again.
If above-mentioned existing paper windowing film covering method is applied to silver foil, also have the following disadvantages：
First, because food packaging requirement must use water-based glue to carry out overlay film, and water-based glue overlay film on silver foil
The phenomenon that glue trace occurs is insurmountable.
Second, in order to occur when preventing printing it is viscous spent bottom, dusting during printing can be more, to play drying using dusting
Effect, makes paper surface roughness uprise the curtain coating (levelling and extension) that can influence adhesive, causes gluing uneven, can cause
Final products surface is caused bright spot or " hazing " that snowflake spot and gloss differ occur because film pressure is unreal.
3rd, due to expanding with heat and contract with cold, paper uses the thin of windowing position after hot overlay film after paper cooling meat
Film wrinkles, and window edge bubbles.
4th, easily there is glue spilling in the window's position, influences the outward appearance and quality of product.
The content of the invention
The technical problems to be solved by the invention are：A kind of windowing film covering method of paper is provided.
Solves above-mentioned technical problem, the technical solution adopted in the present invention is as follows：
A kind of windowing film covering method of paper, it is characterised in that：Described windowing film covering method includes：
Step 1: using the two-sided corona film for being wherein simultaneously pre-coated with PUR, the another side of the two-sided corona film is led to
The surface of supercooling rubberizing water and the paper of overlay film to be opened a window is bonded, and realizes full version of the two-sided corona film to the paper
Overlay film, to obtain semi-finished product early stage；
Step 2: semi-finished product early stage are opened a window, i.e.,：Exit window is die cut in the precalculated position of semi-finished product early stage
Mouthful, and waste material caused by cross cutting is removed, to obtain mid-term semi-finished product；
Step 3, the heat-sealing film of COPP is provided with using at least one side, the heat-sealing film is provided with COPP
Simultaneously overlay on the PUR of the mid-term semi-finished product, and by hot-pressing roller by the heat-sealing film and mid-term semi-finished product heat pressure adhesive
Together, to obtain finished product of the paper after the overlay film that opens a window.
As the preferred embodiment of the present invention：In the step 1, bonded in the two-sided corona film with paper
When, the one side that the two-sided corona film is pre-coated with PUR is upwardly disposed.
As the preferred embodiment of the present invention：In the step 3, the hot-pressing roller is directly born against on the heat-sealing film.
As the preferred embodiment of the present invention：In the step 3, the thickness of the heat-sealing film is in 0.2mm to 0.7mm
Between, the temperature of the hot-pressing roller is between 80 DEG C to 85 DEG C.
As the preferred embodiment of the present invention：In the step 3, the thickness of the heat-sealing film is 0.35mm, the heat
The temperature of pressure roller is between 80 DEG C to 85 DEG C.
As the preferred embodiment of the present invention：The paper is silver foil, and the cold rubberizing water is that food-grade is water-based cold
Rubberizing water.
Compared with prior art, the invention has the advantages that：
First, the present invention first realizes full version overlay film of the two-sided corona film to paper with cold rubberizing water so that the surface of paper
Form one layer and carry the PUR of hot melt, and overlayed on after windowing, then by heat-sealing film on foregoing hot melt adhesive layer, utilize hot-pressing roller
Foregoing hot melt adhesive layer is melted to have the bonding of the COPP of adhesivity with heat-sealing film, to cause heat-sealing film and two-sided corona film
Reliably it is bonded together, realizes the windowing overlay film of paper, make paper obtain has visuality by the commodity of its packaging
Function；
After realizing two-sided corona film to the full version overlay film of paper using cold rubberizing water due to the present invention, then opened a window, kept away
Gluing after first windowing is exempted from and gluing is uneven caused by paper out-of-flatness that (gluing is uneven, can cause some positions of paper surface
Glue excess is put, and some position glue are very few, make product section position come unglued, there is excessive glue in portion) the problem of,
And during full version overlay film cold rubberizing water coated weight it is easily controllable, avoid the very few bonding phenomenon loosely that occurs coming unglued of glue-spread, apply
Glue amount, which is crossed, will at most the problem of glue spilling, and therefore, present invention reduces the technology difficulty of paper windowing overlay film；
Because the present invention uses cold rubberizing water to realize full version overlay film of the two-sided corona film to paper, without carrying out during being somebody's turn to do
Heating, and two-sided corona film then only needs relatively low temperature melting PUR to be bonded with the COPP of heat-sealing film, makes
Heat expansion of the paper in the coating process that open a window deforms smaller, therefore, paper is not in contraction distortion after the cooling period, it is ensured that
Heat-sealing film and two-sided corona film are not in corrugation and foaming in windowing position so that windowing overlay film finished product effect is good；
Because step one to the step 3 of the present invention can be carried out continuously, without waiting oiliness glue as such as prior art
Dry, therefore, the present invention improves the production efficiency of paper windowing overlay film；
In summary, the present invention has the advantages of technology difficulty is low, windowing overlay film finished product effect is good, production efficiency is high.
Second, present invention preferably employs thickness in 0.2mm to the heat-sealing film between 0.7mm, and using temperature at 80 DEG C extremely
Hot-pressing roller between 85 DEG C carries out hot pressing, further ensure that heat expansion deformation of the paper in the coating process that opens a window is small.
3rd, the present invention bonds two-sided corona film using the water-based cold rubberizing water of food-grade and silver foil, food-grade are water-based cold
The hole that rubberizing water can be penetrated effectively between layer of ink and paper is bonded, and it is not in false bonding to ensure product, into
Product are also not in foaming, are hazed.
4th, the present invention is equipped with the heat-sealing film of COPP using two sides, utilizes the viscosity of heat-sealing film so that this hair
Good adhesion together with when bright obtained windowing overlay film finished product and client's cigarette coating seal, plays dust-proof, the anti-unlatching of packaging for foodstuff
Effect.
Brief description of the drawings
The present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings：
Fig. 1 is the schematic diagram of step 1 in the present invention；
Fig. 2 be in the present invention made by step 1 early stage semi-finished product cross section structure diagram；
Fig. 3 is the structural representation of the mid-term semi-finished product made by step 2 in the present invention；
Fig. 4 is the schematic diagram of step 3 in the present invention；
Fig. 5 is the cross section structure diagram of the finished product made by step 3 in the present invention.
Embodiment
As shown in Figures 1 to 5, it is disclosed by the invention be a kind of paper windowing film covering method, its inventive concept is：This is opened
Window film covering method includes：
Step 1: as shown in figure 1, using the two-sided corona film 3 for being wherein simultaneously pre-coated with PUR 4, by the two-sided corona
The another side of film 3 is bonded by the surface of cold rubberizing water 2 and the paper 1 of overlay film to be opened a window, and realizes two-sided corona film 3 to paper
1 full version overlay film is opened, to obtain semi-finished product early stage, wherein, in bonding, two-sided corona film 3 is pressed in by paper 1 by pressure roller 6
On, to ensure that the rwo is clinged, early stage made of the step 1, semi-finished product were referring to Fig. 2；
Step 2: semi-finished product early stage are opened a window, i.e.,：In early stage, the precalculated position of semi-finished product is die cut out window W, and clearly
Except waste material caused by cross cutting, to obtain mid-term semi-finished product, mid-term semi-finished product are referring to Fig. 3 made of the step 2；
Step 3, as shown in figure 4, being provided with the heat-sealing film 5 of COPP using at least one side, the heat-sealing film 5 is provided with
The one side of COPP is overlayed on the PUR 4 of mid-term semi-finished product, and by hot-pressing roller 7 by heat-sealing film 5 and mid-term semi-finished product
Together, to obtain finished product of the paper 1 after the overlay film that opens a window, finished product is referring to Fig. 5 made of the step 3 for heat pressure adhesive.
On the basis of foregoing invention design, the present invention uses following preferred embodiment：
As the preferred embodiment of the present invention：It is two-sided when two-sided corona film 3 and paper 1 are bonded in step 1
The one side that corona film 3 is pre-coated with PUR 4 is upwardly disposed.
As the preferred embodiment of the present invention：In step 3, hot-pressing roller 7 is directly born against on heat-sealing film 5.
As the preferred embodiment of the present invention：In step 3, the thickness of heat-sealing film 5 in 0.2mm between 0.7mm, heat
The temperature of pressure roller 7 is between 80 DEG C to 85 DEG C.
As the preferred embodiment of the present invention：In step 3, the thickness of heat-sealing film 5 is 0.35mm, the temperature of hot-pressing roller 7
Between 80 DEG C to 85 DEG C.
As the preferred embodiment of the present invention：Paper 1 is silver foil, and cold rubberizing water 2 is the water-based cold rubberizing water of food-grade.
The present invention is not limited to above-mentioned embodiment, according to the above, according to the ordinary technical knowledge of this area
And customary means, under the premise of the above-mentioned basic fundamental thought of the present invention is not departed from, the present invention can also make other diversified forms
Equivalent modifications, replacement or change, all fall among protection scope of the present invention.For example, paper 1 can also use other materials
Paper, when not requiring to be used for packaging for foodstuff, cold rubberizing water 2 also can use it is other without hot melt glue.
Claims (6)
- A kind of 1. windowing film covering method of paper, it is characterised in that：Described windowing film covering method includes：Step 1: using the two-sided corona film (3) for being wherein simultaneously pre-coated with PUR (4), by the another of the two-sided corona film (3) Face is bonded by cold rubberizing water (2) and the surface of the paper (1) of overlay film to be opened a window, and realizes that the two-sided corona film (3) is right The full version overlay film of the paper (1), to obtain semi-finished product early stage；Step 2: semi-finished product early stage are opened a window, i.e.,：Window is die cut out in the precalculated position of semi-finished product early stage (W), and waste material caused by cross cutting is removed, to obtain mid-term semi-finished product；Step 3, the heat-sealing film (5) of COPP is provided with using at least one side, the heat-sealing film (5) is provided with COPP One side overlay on the PUR (4) of the mid-term semi-finished product, and by hot-pressing roller (7) by the heat-sealing film (5) and mid-term half Finished product heat pressure adhesive together, to obtain finished product of the paper (1) after the overlay film that opens a window.
- 2. the windowing film covering method of paper according to claim 1, it is characterised in that：In the step 1, described two-sided When corona film (3) is bonded with paper (1), the one side that the two-sided corona film (3) is pre-coated with PUR (4) is upwardly disposed.
- 3. the windowing film covering method of paper according to claim 1, it is characterised in that：In the step 3, the hot-pressing roller (7) directly bear against on the heat-sealing film (5).
- 4. the windowing film covering method of paper according to claim 1, it is characterised in that：In the step 3, the heat-sealing film (5) thickness is in 0.2mm between 0.7mm, and the temperature of the hot-pressing roller (7) is between 80 DEG C to 85 DEG C.
- 5. the windowing film covering method of paper according to claim 1, it is characterised in that：In the step 3, the heat-sealing film (5) thickness is 0.35mm, and the temperature of the hot-pressing roller (7) is between 80 DEG C to 85 DEG C.
- 6. according to the windowing film covering method of paper described in claim 1 to 5 any one, it is characterised in that：The paper (1) is Silver foil, the cold rubberizing water (2) are the water-based cold rubberizing water of food-grade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710906313.7A CN107599598A (en) | 2017-09-29 | 2017-09-29 | A kind of windowing film covering method of paper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710906313.7A CN107599598A (en) | 2017-09-29 | 2017-09-29 | A kind of windowing film covering method of paper |
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| Publication Number | Publication Date |
|---|---|
| CN107599598A true CN107599598A (en) | 2018-01-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710906313.7A Pending CN107599598A (en) | 2017-09-29 | 2017-09-29 | A kind of windowing film covering method of paper |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114701155A (en) * | 2022-03-01 | 2022-07-05 | 博阳鸿(天津)印业有限公司 | Process and device for windowing and covering glassine paper by completely degradable paper |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200602236A (en) * | 2004-07-08 | 2006-01-16 | Ho Saint Bag Products Co Ltd | Method of producing bag film with windows |
| CN204038119U (en) * | 2014-03-19 | 2014-12-24 | 林绮玲 | One is windowed packaging bag |
| CN105966041A (en) * | 2016-05-13 | 2016-09-28 | 广州帕克机械科技有限公司 | {0><}0{>Laser positioning and windowing laminating technology |
-
2017
- 2017-09-29 CN CN201710906313.7A patent/CN107599598A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200602236A (en) * | 2004-07-08 | 2006-01-16 | Ho Saint Bag Products Co Ltd | Method of producing bag film with windows |
| CN204038119U (en) * | 2014-03-19 | 2014-12-24 | 林绮玲 | One is windowed packaging bag |
| CN105966041A (en) * | 2016-05-13 | 2016-09-28 | 广州帕克机械科技有限公司 | {0><}0{>Laser positioning and windowing laminating technology |
Non-Patent Citations (2)
| Title |
|---|
| 印刷工业出版社编辑部: "《印后加工工艺》", 28 February 2011, 印刷工业出版社 * |
| 王建清 主编: "《普通高等教育‘十一五’国家级规划教材—包装材料学》", 31 January 2009, 中国轻工业出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114701155A (en) * | 2022-03-01 | 2022-07-05 | 博阳鸿(天津)印业有限公司 | Process and device for windowing and covering glassine paper by completely degradable paper |
| CN114701155B (en) * | 2022-03-01 | 2022-11-29 | 博阳鸿(天津)印业有限公司 | Process and device for completely degrading paper, windowing and covering glass paper |
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Application publication date: 20180119 |