CN102896929A - Transparent film, transparent film generation method and treatment method utilizing transparent film - Google Patents
Transparent film, transparent film generation method and treatment method utilizing transparent film Download PDFInfo
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- CN102896929A CN102896929A CN2012104128630A CN201210412863A CN102896929A CN 102896929 A CN102896929 A CN 102896929A CN 2012104128630 A CN2012104128630 A CN 2012104128630A CN 201210412863 A CN201210412863 A CN 201210412863A CN 102896929 A CN102896929 A CN 102896929A
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- transparent film
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- shrinkage pool
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Abstract
The invention discloses a transparent film, a transparent film generation method and an anti-sticking treatment method utilizing the transparent film. The transparent film provided by the invention has a convex point structure on the surface per se; and the convex point structure of the transparent film forms gap spaces among the transparent films to avoid sticking. The anti-sticking treatment method provided by the invention comprises the steps of: extruding by using a roller barrel to generate the transparent film with the convex point structure; utilizing the convex point structure of the transparent film to form gap spaces among the transparent films to avoid sticking; and utilizing the gap spaces among the transparent film to extract the transparent films. According to the technical scheme provided by the invention, material performances of materials are utilized fully, cost is lowered, printing effects are improved and production efficiency is increased.
Description
Technical field
The present invention relates to material and technical field of packaging and printing, be specifically related to a kind of transparent film, transparent film generation method and utilize the release treatment method of transparent film.
Background technology
Always develop rapidly in the past by more than ten years for the packages printing technology, advance to the film printing from paper printing, because the difference of printing material character is subject to many-sided restriction at printing effect, so that the cost of film printing improves greatly than the cost of paper printing.
In order to obtain desirable printing effect, generally in the process of transparent film printing, can use a large amount of additional materials (electrostatic protection film).Transparent film generally adopts plastic material to make.And the reason of employing electrostatic protection film; be since the smooth surface of transparent film when stacking with the Bas Discharged between sheet material and the sheet material; form " sealing " state between the sheet material; transparent film under the stacked state can not delamination; form tacky state; make transparent film can't reach fast a large amount of printings; therefore by the translucent electrostatic protection film of layer overlay on transparent film; make the transparent film under the stacked state easily separate, satisfy the every rear manufacturing procedure of transparent film.Existing to also have a kind of method be to add smooth prescription on the clear sheet top layer, and this mode is chemically added the wax composition in the plastic material molecule, make sheet surface form micro-wax secretion, reduces the sheet surface coefficient of friction, makes the sheet separation characteristic improve.
But, still there is certain defect in art methods, for example adopt the method for electrostatic protection film, so that financial cost increases, time cost increases, increase the pad pasting program such as need, need remove diaphragm again after the completion of processing, and can make film stay scar when under stacked state, dragging away from, also make loss (wearing and tearing) increase, and affect printing effect; Adopt and add the method that prescription increases the smooth performance of film in the chemical method, can reduce the adhesive force of printing-ink, because more thick sheet institute must an additive deal must improve, and in the higher situation of additive deal, printing effect (firmness that printing ink adheres to) is relative reduce also.
Summary of the invention
The invention provides a kind of transparent film, transparent film generation method and utilize the release treatment method of transparent film, can take full advantage of the new material performance, and reduce cost, improve printing effect, enhance productivity.
Technical scheme provided by the invention is as follows:
The invention provides a kind of transparent film, described transparent film surface has bump structure, and the bump structure of described transparent film forms void space so that avoid bonding between each transparent film.
The plastic material that described transparent film adopts is polylactic acid PLA, polyester slice APET or polypropylene PP.
The invention provides a kind of transparent film generation method, comprising:
Being heated the plastic material that dissolves into flow-like after die head flows out, by the roller with shrinkage pool structure plastic material is pushed, cools off;
After carrying out described extruding and cooling, form the transparent film that the surface has bump structure.
Described plastic material is polylactic acid PLA, polyester slice APET or polypropylene PP.
The invention provides a kind of release treatment method of utilizing transparent film, comprising:
Generate the transparent film with bump structure by the roller extruding;
Utilize the bump structure of described transparent film between each transparent film, to form void space so that avoid bonding;
Utilize the void space between described transparent film that described transparent film is extracted.
Describedly generate the transparent film with bump structure by roller extruding and be specially:
The roller extruding that has the shrinkage pool structure by having the surface generates the transparent film with bump structure.
Described shrinkage pool is trickle shrinkage pool, and described salient point is trickle salient point.
When transparent film and the friction of outer deposits yields, the bump structure of described transparent film is accepted frictional force as contact point.
The plastic material that described transparent film adopts is polylactic acid PLA, polyester slice APET or polypropylene PP.
Technique scheme can be found out, because the transparent film of the embodiment of the invention is the plastic material that adopts environmental protection, and has bump structure, so just can utilize the bump structure of described transparent film between each transparent film, to form void space so that avoid bonding, and when described transparent film is extracted, utilize the void space between described transparent film to get final product sliding space, extract fast and effectively described transparent film out, thereby can overcome the defective of prior art, take full advantage of the new material performance and realize more environment-friendly function, and Cost reduction, raise the efficiency, improve printing effect.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the flow chart of transparent film generation method of the present invention;
Fig. 2 is the flow chart of transparent film release treatment method of the present invention;
Fig. 3 is transparent film surface features schematic diagram of the present invention;
Fig. 4 is transparent film surface roughness schematic diagram of the present invention;
Fig. 5 is transparent film friction schematic diagram of the present invention;
Fig. 6 is transparent film production procedure schematic diagram of the present invention.
The specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making all other embodiment that obtain under the creative work prerequisite.
The embodiment of the invention provides a kind of transparent film, transparent film generation method and utilizes the release treatment method of transparent film, can take full advantage of the new material performance, and can reduce cost, improves printing effect, enhances productivity.
Transparent film of the present invention is the plastic material that adopts environmental protection, for example is polylactic acid PLA, polyester slice APET or polypropylene PP, and these material non-toxic environmental protection also can recycle.Especially, PLA is a kind of new material that biotechnology is developed that sees through, and absolutely automatically degraded is pollution-free, nuisanceless.
PLA (PLA) is a kind of take living beings starch as raw material, through the Biodegradable Polymers of high-tech polymerization.Because many producers adopt corn as raw materials for production, therefore many people also call Corn Plastic to PLA.The environmental-protection function of PLA is embodied in: A, complete biodegradable: PLA has excellent biological degradability, in two years can be degradable by the microorganism in the soil after discarding, generate carbon dioxide CO2 and water H2O, and environment is not produced pollution.B, plant origin: PLA is the macromolecule take natural biological as raw material, has broken away from the dependence to petroleum resources.The Application and Development of PLA can be saved petroleum resources, suppresses to increase owing to the clean discharge capacity of carbon dioxide the aggravation of the greenhouse effects that cause, and satisfies the requirement of human kind sustainable development.
In industrial production, PLA has excellent machinability.Because PLA has the fundamental characteristics of commodity polymer material, therefore have good machining property, the purposes that can be competent at most synthetic plastic.Can equally carry out various processing and forming with common macromolecule, as extrude, masking, injection moulding, bottle blowing, fiberizing etc.The various films that PLA makes, sheet material, fiber can be widely used in the fields such as packing, clothes, weaving, nonwoven, agricultural, forestry, medical and hygiene article through the product that the secondary operations such as thermoforming, spinning obtain.Traditional engineering plastics be can also make to replace through the PLA material of modification and IT, automobile and other industries are applied to.PLA also is applicable to common sheet material extrusion equipment, for example is applied to melting of the plastic mould equipment among the present invention: PLA and refers to stablize, and melt strength is high; Heat stability is good, easily processing; Has good gloss and brightness.Because it has excellent printing performance and good adhesive property, especially be fit to the heat-sealable ways such as high frequency, ultrasonic wave; It also has good toughness, anti-bending, and folding strength is above 5000 times.
Below in conjunction with accompanying drawing technical solution of the present invention is elaborated respectively.
The invention provides a kind of transparent film, described transparent film surface has bump structure, and the bump structure of described transparent film forms void space so that avoid bonding between each transparent film.The present invention changes the film surface texture by roller (being the plastic sheet shaping dies), forms a fixed gap when depositing so that transparent film is folded, can not form tacky state calmly, and the energy delamination makes transparent film can reach fast a large amount of printings.
Fig. 1 is the flow chart of transparent film generation method of the present invention.
Step 11: being heated the plastic material that dissolves into flow-like after die head flows out, by the roller with shrinkage pool structure plastic material is pushed, cools off.
Described plastic material is polylactic acid PLA, polyester slice APET or polypropylene PP.
Fig. 2 is release treatment method flow diagram of the present invention.
As shown in Figure 2, comprise step:
Because the transparent film of the embodiment of the invention is the plastic material that adopts environmental protection, and has bump structure, so just can utilize the bump structure of described transparent film between each transparent film, to form void space so that avoid bonding, and when described transparent film is extracted, utilize the void space between described transparent film to get final product sliding space, extract fast and effectively described transparent film out, thereby can overcome the defective of prior art, take full advantage of the new material performance and realize more environment-friendly function, and Cost reduction, raise the efficiency, improve printing effect.
The present invention program is below more specifically described.
Concrete, the present invention is covered with the roll change tube film surface texture of trickle shrinkage pool by the surface, when even film is shaped, film surface forms " trickle salient point ", like this so that transparent film is stacking when depositing, between sheet material and the sheet material owing to there being trickle salient point, air between the sheet material can not discharged fully, form a slidably space, make the film taking-up of sliding one by one easily, this situation as shown in Figure 3.201 as seen among Fig. 3, because not exclusively the diaphragm on plane is for providing the space between the sheet material, air is not discharged fully, therefore is open state.Among Fig. 3 in 202 as seen, exist air pressure and surrounding environment close between sheet material and the sheet material, the sheet material extraction of can sliding one by one, and when extracting out, air can enter, so that still continue to keep certain space between the sheet material.203 represent to slide one by one extraction.
Simultaneously, owing to the existence of salient point, equaled to increase the surface area of transparent film, made the adhesive force of printing-ink directly improve, this situation as shown in Figure 4.Among Fig. 4, the surface roughness of the antiseized minute surface transparent film of the present invention that the left side represents, the general minute surface transparent film of the prior art that the right represents surface smoothing structure.Among Fig. 4 301 represents printing-ink, and the reference line of 302 and 303 expressions is that printing-ink is in the contact area of two kinds of different surfaces.302 contact area is greater than 303 contact area, therefore so that the adhesive force of printing-ink be improved.
Further; when foreign object and transparent film surface produces friction (refer in particular to sheet material drags on the surface in process); salient point produces protective effect for sheet surface; under the friction that is no more than to a certain degree; just the friction of salient point top is impaired; and this scar is not easy to be seen by naked eyes, will just can observe at microscopically generally speaking, and this situation as shown in Figure 5.When sheet material when an other sheet material slides, contact point mainly concentrates on the salient point part, forms the protection of bottom minute surface, also mainly is at the salient point top even wearing and tearing occur, and can is not the plane of transparent film, thereby reduce the transparent film wearing and tearing.
Shown in Figure 6 is the production procedure schematic diagram of the antiseized transparent film of the present invention.
Shown in Figure 6, mainly comprise step:
In this step, the anti-adhesive sheet roller that adopts two surfaces to be covered with trickle shrinkage pool pushes, cools off plastic material.
The adherent surfaces structure of step 605, formation transparent film.
This step forms the adherent surfaces structure of transparent film, namely has trickle salient point.
By above-mentioned production process, just can produce the transparent film that has bump structure and material property is arranged, just can utilize the bump structure of described transparent film between each transparent film, to form void space so that avoid bonding, and take full advantage of the new material performance and realize more environment-friendly function, and Cost reduction, raise the efficiency, improve printing effect.
The above technical scheme that the embodiment of the invention is provided, be described in detail, used specific case herein principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (9)
1. a transparent film is characterized in that, described transparent film surface has bump structure, and the bump structure of described transparent film forms void space so that avoid bonding between each transparent film.
2. transparent film according to claim 1 is characterized in that:
The plastic material that described transparent film adopts is polylactic acid PLA, polyester slice APET or polypropylene PP.
3. a transparent film generation method is characterized in that, comprising:
Being heated the plastic material that dissolves into flow-like after die head flows out, by the roller with shrinkage pool structure plastic material is pushed, cools off;
After carrying out described extruding and cooling, form the transparent film that the surface has bump structure.
4. transparent film generation method according to claim 3 is characterized in that:
Described plastic material is polylactic acid PLA, polyester slice APET or polypropylene PP.
5. a release treatment method of utilizing transparent film is characterized in that, comprising:
Generate the transparent film with bump structure by the roller extruding;
Utilize the bump structure of described transparent film between each transparent film, to form void space so that avoid bonding;
Utilize the void space between described transparent film that described transparent film is extracted.
6. method according to claim 5 is characterized in that:
Describedly generate the transparent film with bump structure by roller extruding and be specially:
The roller extruding that has the shrinkage pool structure by having the surface generates the transparent film with bump structure.
7. method according to claim 6 is characterized in that:
Described shrinkage pool is trickle shrinkage pool, and described salient point is trickle salient point.
8. it is characterized in that according to claim 5 or 6 described methods:
When transparent film and the friction of outer deposits yields, the bump structure of described transparent film is accepted frictional force as contact point.
9. it is characterized in that according to claim 5 or 6 described methods:
The plastic material that described transparent film adopts is polylactic acid PLA, polyester slice APET or polypropylene PP.
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| CN2012104128630A CN102896929A (en) | 2012-10-24 | 2012-10-24 | Transparent film, transparent film generation method and treatment method utilizing transparent film |
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| CN2012104128630A CN102896929A (en) | 2012-10-24 | 2012-10-24 | Transparent film, transparent film generation method and treatment method utilizing transparent film |
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Cited By (2)
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| CN104401008A (en) * | 2014-10-16 | 2015-03-11 | 金宝丽科技（苏州）有限公司 | Preparation method for APET film with aroma |
| CN104617230A (en) * | 2015-01-29 | 2015-05-13 | 合肥鑫晟光电科技有限公司 | Packaging adhesive structure, manufacturing method thereof, and packaging method of display substrate |
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Application publication date: 20130130 |