CN100347260C - Adhesive sheet and method for manufacturing same - Google Patents
Adhesive sheet and method for manufacturing same Download PDFInfo
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- CN100347260C CN100347260C CNB2003801087110A CN200380108711A CN100347260C CN 100347260 C CN100347260 C CN 100347260C CN B2003801087110 A CNB2003801087110 A CN B2003801087110A CN 200380108711 A CN200380108711 A CN 200380108711A CN 100347260 C CN100347260 C CN 100347260C
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- pressure
- sensitive adhesive
- hole
- adhesive sheets
- adhesive layer
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- 238000000034 method Methods 0.000 title claims description 23
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- KXDHJXZQYSOELW-UHFFFAOYSA-N Carbamic acid Chemical compound NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 description 2
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- POAOYUHQDCAZBD-UHFFFAOYSA-N 2-butoxyethanol Chemical compound CCCCOCCO POAOYUHQDCAZBD-UHFFFAOYSA-N 0.000 description 1
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- MKYBYDHXWVHEJW-UHFFFAOYSA-N N-[1-oxo-1-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propan-2-yl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(C(C)NC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 MKYBYDHXWVHEJW-UHFFFAOYSA-N 0.000 description 1
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Images
Landscapes
- Adhesive Tapes (AREA)
- Laminated Bodies (AREA)
Abstract
An adhesive sheet (1) comprising a base (11) and an adhesive layer (12) is provided with a plurality of through holes (2) which penetrate the adhesive sheet from one surface to the other surface. The diameters of the through holes (2) are 0.1-300 mum, and the hole density is 30-50,000 holes per 100 cm<2>. These through holes (2) are preferably formed by laser machining. This adhesive sheet (1) enables prevention or removal of an air pocket and a blister while securing sufficient adhesion without deteriorating the appearance.
Description
Technical field
The present invention relates to the method that can prevent or remove the pressure-sensitive adhesive sheets of air trapping or bubble and produce this pressure-sensitive adhesive sheets.
Background technology
When on adherend, adhering pressure-sensitive adhesive sheets by hand, have and can between adherend and adhesive face, form air trapping, make pressure-sensitive adhesive sheets in some cases by the problem of disfigurement.When the area of pressure-sensitive adhesive sheets is big, more this air trapping may take place usually.
In order to solve the problem of appearance of the pressure-sensitive adhesive sheets that causes owing to air trapping, taked following measures: pressure-sensitive adhesive sheets is replaced with another pressure-sensitive adhesive sheets, remove pressure-sensitive adhesive sheets and adhere to once more, or use pin to form the hole, thereby emit described air at the dilation of pressure-sensitive adhesive sheets.Yet, following problem has usually taken place.For example, when replacing pressure-sensitive adhesive sheets, this is not only trouble, and causes cost up.In addition, when attaching pressure-sensitive adhesive sheets once more, pressure-sensitive adhesive sheets can be destroyed, can produce fold from the teeth outwards, maybe can reduce the pressure sensitive adhesion performance.On the other hand, the method for use pin pore-creating has been damaged the shape of pressure-sensitive adhesive sheets.
In order to prevent air trapping, the someone has adopted the method that water is adsorbed in adherend or adhesive face before adhesion.Yet, when the large-scale pressure-sensitive adhesive sheets of adhesion such as the breakage-proof film of the glass of window, when decorating film, seal mark film etc., need more time and Geng Duo effort.In addition, using appts but not manual this based sheet of adhering are so that prevent air trapping.Yet, depend on the purposes of pressure-sensitive adhesive sheets or the section and/or the shape of adherend, always can not adhere by enough devices.
Simultaneously, resin material is such as acrylic resin, ABS resin, and polystyrene resin, polycarbonate resin etc. maybe need not heat by heating and produced gas.When pressure-sensitive adhesive sheets was adhered to the adherend of resinous materials preparation thus, the gas that is produced by adherend had produced bubble in pressure-sensitive adhesive sheets.
In order to overcome the above problems, on the communique of the communique of Japanese Utility Model registration number 2503717 and Japanese Utility Model registration number 2587198, proposed a kind of pressure-sensitive adhesive sheets, wherein a plurality of independently little projections place on the adhesive face of pressure-sensitive adhesive layer with the dispersal point state.Therefore in this pressure-sensitive adhesive sheets, the tip of the little projection of pressure-sensitive adhesive layer closely contacts with adherend, and the planar base surface and the adherend of pressure-sensitive adhesive layer have spacing, has formed the planar base surface that leads to pressure-sensitive adhesive layer and the gap of the outside between the adherend.As a result, by air or gas are put into the outside by this interstitial row, can prevent gas hold-up or bubble.
Yet, on the pressure-sensitive adhesive sheets that in above communique, discloses, has the inferior problem of bond strength, because have only the tip of the little projection in the pressure-sensitive adhesive layer to be bonded in adherend, and, water, chemical etc. can easily infiltrate between pressure-sensitive adhesive layer and adherend, have therefore reduced bond strength.Even adherend is close to this adhesive sheet in powerful ground, because the existence of the little projection of pressure-sensitive adhesive layer, bond strength also is inadequate.In addition, in this case, the gap of leading to the outside is filled, and therefore, can not avoid bubble, and the latter forms when producing gas by adherend.
Of the present invention open
Consider that said circumstances made the present invention, purpose provides and can prevent or remove air trapping or bubble, and do not damage the shape of pressure-sensitive adhesive sheets, guaranteed the pressure-sensitive adhesive sheets of sufficient bond strength simultaneously, and the method for producing this pressure-sensitive adhesive sheets.
In order to reach above purpose, first aspect of the present invention provides pressure-sensitive adhesive sheets, comprise base material and pressure-sensitive adhesive layer, the a plurality of through holes that penetrate another face from a face have wherein been formed, wherein the aperture at the through hole of base material and pressure-sensitive adhesive layer is that 0.1-300 μ m and hole density are 30-50,000/100cm
2(invention 1).
In the present invention, " sheet material " meaning is to comprise film and adhesive tape, and " film " meaning also is to comprise sheet material and adhesive tape.
Pressure-sensitive adhesive sheets according to above invention (invention 1), air between adherend and adhesive face is discharged into the outside on the surface of pressure-sensitive adhesive sheets via through hole, therefore, when adhering to pressure-sensitive adhesive sheets on the adherend, air is difficult to be trapped.Therefore, can prevent air trapping.Even air is trapped and forms air trapping, also can be by the near zone (comprising the air trapping part) of compressing air trapping part or air trapping part, so that air trapping is eliminated in the outside that exhausts air to the surface of pressure-sensitive adhesive layer via through hole.In addition, even when producing gas by adherend after adhering to pressure-sensitive adhesive sheets on the adherend, gas is discharged into the outside on the surface of pressure-sensitive adhesive sheets via through hole.Therefore, can prevent bubble.
In addition, because the aperture of through hole is less than 300 μ m, thus be inapparent at the lip-deep through hole of pressure-sensitive adhesive sheets, so pressure-sensitive adhesive sheets is not by disfigurement.In addition, because the density of through hole is less than 50,000/100cm
2So the physical strength of pressure-sensitive adhesive sheets is held.
In above invention (invention 1), preferably, the aperture of through hole diminish gradually to the surface from the back side of pressure-sensitive adhesive sheets (invention 2).When the aperture image of through hole changed like this, through hole was difficult to be seen on the surface of pressure-sensitive adhesive sheets more.Therefore, the outward appearance of pressure-sensitive adhesive sheets can remain under the good state.
In above invention (invention 1 or 2), preferably, through hole forms (invention 3) by the processing of laser beam machinery.According to the processing of laser beam machinery, can easily form thin through hole with good air emission behavior with required hole density.Yet the method that forms through hole is not limited thereto.For example, through hole can pass through jet of water, micro-drill, and precision stamping, hot pin, fusion piercing waits and forms.
Second aspect of the present invention provides the method for producing pressure-sensitive adhesive sheets, comprise the following steps: that preparation comprises base material, the pressure-sensitive adhesive sheets of pressure-sensitive adhesive layer and other non-stick material if desired, and on pressure-sensitive adhesive sheets, carry out pore-forming and process, form through hole, make in the aperture of base material and pressure-sensitive adhesive layer it is that 0.1-300 μ m and hole density are 30-50,000/100cm
2(invention 4).
According to above invention (invention 4), can produce pressure-sensitive adhesive sheets, can prevent or remove air trapping or bubble by the gas that is emitted on the air between adherend and the adhesive face via through hole or produce thus by adherend.
In above invention (invention 4), preferably, pore-forming processing is laser beam machinery processing (invention 5).In this case, preferably, the processing of laser beam machinery is carried out (invention 6) from the rear side of pressure-sensitive adhesive sheets.Here, the back side of pressure-sensitive adhesive sheets is meant the reverse side on the surface of pressure-sensitive adhesive sheets, under the situation that exists non-stick material as the lowest layer, be meant the bottom surface of non-stick material, or expose, do not have the adhesive face that is meant pressure-sensitive adhesive layer under the situation of any non-stick material at pressure-sensitive adhesive layer.
When being processed to form through hole by laser beam machinery, because many through holes are tapered, so by carrying out laser beam machinery processing from the back side of pressure-sensitive adhesive sheets, in the aperture of the through hole on the surface of pressure-sensitive adhesive sheets less than the back side of pressure-sensitive adhesive sheets.Therefore, the through hole on the pressure-sensitive adhesive sheets surface is more inconspicuous, makes the outward appearance of pressure-sensitive adhesive sheets to remain under the good order and condition.
In above invention (invention 6), preferably, laser is shone directly into (invention 7) on the pressure-sensitive adhesive layer.When being laminated to non-stick material on the pressure-sensitive adhesive layer, preferably, peeling laminated non-stick material on pressure-sensitive adhesive layer from the pressure-sensitive adhesive layer shines directly into laser on the pressure-sensitive adhesive layer, and then non-stick material is laminated to (invention 8) on the pressure-sensitive adhesive layer.
When being laminated on the pressure-sensitive adhesive layer such as non-stick material etc. with the 3rd layer, if by the 3rd layer with laser radiation to pressure-sensitive adhesive layer, the dregs that form on the 3rd layer can enlarge the opening of the through hole on pressure-sensitive adhesive layer, depend on trilaminar material.Therefore, the tolerance range of the aperture of the through hole that will form on pressure-sensitive adhesive sheets or hole density reduces.In addition, if the opening of through hole enlarges as described above, the internal space of through hole becomes big so, makes after pressure-sensitive adhesive sheets is adhered to adherend, in any case air in through hole or the water that enters through hole can influence the surface of pressure-sensitive adhesive sheets.
According to above invention (invention 7 or 8), avoid the opening that enlarges the through hole in pressure-sensitive adhesive layer owing to the 3rd layer, so can form through hole, make that the tolerance range of aperture or hole density is that high and internal space are little.In addition, do not inserting under the trilaminar situation, laser irradiation time can shorten or laser output energy can be low.If laser output energy is low, heat has slight influence to pressure-sensitive adhesive sheets.Therefore, can reduce dregs, and the through hole that can form uniform shapes.
In above invention (invention 4-8), preferably, carry out the processing of laser beam machinery, simultaneously factorial lumber material (process material) or removable protection sheet material are laminated to the surface (invention 9) of base material.Here, the factorial lumber material is meant and can forms any layer subsidiary material.For example, when by the cast-film process form layers, the factorial lumber material is as the supporter of cambial resin solution.Generally, the factorial lumber material obtains by antiseized processing on paper or resin film, and it maybe strips down from pressure-sensitive adhesive sheets when using pressure-sensitive adhesive sheets after producing pressure-sensitive adhesive sheets.On the other hand, removable protection sheet material is meant the protection sheet material that can peel off after carrying out the processing of laser beam machinery.For example, can use the pressure sensitive adhesion protection sheet material that constitutes by base material and removable pressure-sensitive adhesive layer.
When forming through hole by the processing of laser beam machinery, in some cases, because thermogenetic melt, so-called dregs can be attached to the around openings of through hole.Yet if factorial lumber material or protection sheet material are laminated to the surface of base material, dregs are attached on factorial lumber material or the protection sheet material so, but not base material.Like this, the outward appearance of pressure-sensitive adhesive sheets can remain under the better state.
In addition; when carrying out the processing of laser beam machinery by factorial lumber material side; because formed tapered through hole; so with when not using factorial lumber material or protection to compare during sheet material; aperture at the through hole of substrate material surface becomes littler, and the outward appearance on the surface of pressure-sensitive adhesive sheets can keep under the better state.
Be noted that the hole that is processed to form by laser beam machinery needn't penetrate factorial lumber material or protection sheet material when peeled off factorial lumber material or protection during sheet material from base material before pressure-sensitive adhesive sheets is attached to adherend.
As mentioned above, according to the present invention, can be in the shape of not damaging pressure-sensitive adhesive sheets, guarantee to obtain to prevent or to remove under the situation of sufficient bond strength the pressure-sensitive adhesive sheets of air trapping or bubble simultaneously.
The accompanying drawing summary
Fig. 1 is the sectional view according to the pressure-sensitive adhesive sheets of one embodiment of the invention.
Fig. 2 is the local amplification sectional view according to the pressure-sensitive adhesive sheets of one embodiment of the invention.
Fig. 3 is the sectional view that has shown according to the production method of the pressure-sensitive adhesive sheets of one embodiment of the invention.
Fig. 4 is the sectional view that has shown according to another production method of the pressure-sensitive adhesive sheets of one embodiment of the invention.
Fig. 5 is the sectional view that has shown according to another production method of the pressure-sensitive adhesive sheets of one embodiment of the invention.
Fig. 6 is the local amplification sectional view according to the pressure-sensitive adhesive sheets of one embodiment of the invention.
Implement best mode of the present invention
Embodiment of the present invention are described as follows:
[adhesive sheet]
Fig. 1 is the sectional view according to the pressure-sensitive adhesive sheets of one embodiment of the invention.
As shown in Figure 1, by laminated substrates material 11, pressure-sensitive adhesive layer 12 and non-stick material 13 prepare according to the pressure-sensitive adhesive sheets 1 of this preferred embodiment of the present invention.Yet, when using pressure-sensitive adhesive sheets 1, peel off non-stick material 13.
In pressure-sensitive adhesive sheets 1, formed many through holes 2, they are from the surperficial 1A process base material 11 of pressure-sensitive adhesive sheets 1, and pressure-sensitive adhesive layer 12 and non-stick material 13 arrive the back side 1B of pressure-sensitive adhesive sheets 1.When using pressure-sensitive adhesive sheets 1, air between the adhesive face of adherend and pressure-sensitive adhesive layer 12 or can be released to the outside of the surperficial 1A of pressure-sensitive adhesive sheets 1 via through hole 2 by the gas that adherend produces makes can prevent or remove air trapping or bubble as hereinafter described.
The horizontal cross sectional geometry of through hole 2 is not special restriction.Yet, are 0.1-300 μ m in the aperture of the through hole 2 of base material 11 and pressure-sensitive adhesive layer 12, preferred 0.5-150 μ m.If the aperture of through hole 2 is less than 0.1 μ m, it is difficult to discharged air or gas.If the aperture of through hole 2 surpasses 300 μ m, through hole 2 can be very showy, and therefore, pressure-sensitive adhesive sheets 1 is by disfigurement.
Be noted that if be≤40 μ m that the hole of through hole 2 itself (internal space of through hole 2) can be that naked eyes are sightless in the aperture of the through hole 2 of the surperficial 1A of pressure-sensitive adhesive sheets 1.Therefore, this is under the sightless in appearance situation of pressure-sensitive adhesive sheets 1 in the hole that especially requires through hole 2, and preferably, the upper limit in the aperture of the through hole 2 of the surperficial 1A of pressure-sensitive adhesive sheets 1 is 40 μ m.In this case, when base material 11 is especially transparent, because in the inside of base material 11 and pressure-sensitive adhesive layer 12 and the visibility that can influence the hole in the aperture of the surperficial 1A of pressure-sensitive adhesive sheets 1, so preferably, at the upper limit in the aperture of the through hole 2 of the inside of base material 11 and pressure-sensitive adhesive layer 12 60 μ m preferably.
The aperture of through hole 2 can be uniformly on the thickness direction of pressure-sensitive adhesive sheets 1, perhaps can change on the thickness direction of pressure-sensitive adhesive sheets 1.When the aperture of through hole 2 changed on the thickness direction of pressure-sensitive adhesive sheets 1, preferably, as shown in Figure 2, the aperture of through hole 2 diminished to surperficial 1A gradually from the back side 1B of pressure-sensitive adhesive sheets 1.Because the aperture image of through hole 2 changes like this, so the through hole 2 on the surperficial 1A of pressure-sensitive adhesive sheets is more inconspicuous.Therefore, the outward appearance of pressure-sensitive adhesive sheets 1 can remain under the good order and condition.Yet, in this case, must be in above scope (0.1-300 μ m) in the aperture of the through hole 2 of base material 11 and pressure-sensitive adhesive layer 12.
The hole density of through hole 2 is 30-50,000/100cm
2, and preferred 100-10,000cm
2If the hole density of through hole 2 is less than 30/100cm
2, be difficult to discharged air or gas.If density surpasses 50,000/100cm
2, the physical strength of pressure-sensitive adhesive sheets 1 reduces.
Preferably by laser beam machinery processing formation through hole 2 as described below.According to the processing of laser beam machinery, can have the thin through hole that good air is emitted performance with the formation of required hole density easily.Yet the method that forms through hole is not limited thereto.For example, through hole can pass through jet of water, micro-drill, and precision stamping, hot pin, fusion piercing waits and forms.
As long as can form through hole 2 in base material 11, the material of base material 11 is not special the restriction.For example,, can use resin film, metallic film, the resin film of metallizing, paper, their laminate etc. as the material of base material 11.When base material 11 was prepared by resin film, base material 11 can be opaque or transparent, but usually, if when base material 11 is opaque, through hole 2 be more be difficult to observed.
As for resin film, for example can use film, foamed thin sheet or their laminated film comprise polyolefine, such as polyethylene, polypropylene etc.; Polyester is such as polyethylene terephthalate, polybutylene terephthalate etc.; Polyvinyl chloride, polystyrene, urethane, polycarbonate, polymeric amide, polyimide, polymethylmethacrylate, polybutene, polyhutadiene, polymethylpentene, vinyl-vinyl acetate copolymer, ethene-(methyl) acrylic copolymer, ethene-(methyl) acrylate copolymer, ABS resin, ionomer resin etc.As resin film, can use commercially available film, can also use the film that forms by cast-film process with the factorial lumber material.As paper, can use the paper of wood-free, Semitransparent Paper, White Board, laminated paper etc.
As long as use required one-tenth hole forming method can form through hole 2 in the factorial lumber material, this factorial lumber material is not special the restriction.For example, can use various types of paper or resin film such as polyethylene terephthalate, polypropylene, polyethylene etc., they can use polysiloxane-based, polyester, acrylic acid or the like, Synolac class or polyurethanes release agent or synthetic resins carry out release treatment.The normally about 10-200 μ m of the thickness of factorial lumber material, preferably approximately 25-150 μ m.
The normally about 1-500 μ m of the thickness of base material 11, preferably approximately 3-300 μ m.This thickness can be according to the purposes of pressure-sensitive adhesive sheets 1 and appropriate change.
The type that is used for the pressure sensitive adhesive of pressure-sensitive adhesive layer 12 is not special restriction, as long as can form aforesaid through hole 2 in pressure-sensitive adhesive layer 12.Pressure sensitive adhesive can be an acrylic acid or the like, polyester, polyurethanes, rubber-like, polysiloxane-based grade any.In addition, pressure sensitive adhesive can be the emulsion class, solvent based or solvent-free class any, and can be crosslink type or non-crosslinked type.In addition, pressure sensitive adhesive can have the strongly-typed tackiness agent of high bond strength, has the weak type adhesive of low bond strength, or the type the removed tackiness agent that can adhere repeatedly and peel off is any.
The normally about 1-300 μ m of the thickness of pressure-sensitive adhesive layer 12, preferably approximately 5-100 μ m.This thickness can be according to the purposes of pressure-sensitive adhesive sheets 1 and appropriate change.
As long as can form through hole 2 in non-stick material 13, the raw material of non-stick material 13 is not special the restriction.For example, can use polyethylene terephthalate, polypropylene, the film of polyethylene etc. or their foamed thin sheet, or paper is such as Semitransparent Paper, White Board, laminated paper etc., they can use polysiloxane-based, and fluorine class or the amino formate release agent that contains chain alkyl carry out release treatment.
The normally about 10-250 μ m of the thickness of non-stick material 13, preferably approximately 20-200 μ m.The thickness of release agent in non-stick material 13 is 0.05-5 μ m normally, preferred 0.1-3 μ m.
[production of adhesive sheet (1)]
The example repeatedly of the pressure-sensitive adhesive sheets 1 of above embodiment is produced in open-birth with reference to figure 3 (a)-(d).
In this production method, shown in Fig. 3 (a)-(b), at first on the adherent surfaces of non-stick material 13, form pressure-sensitive adhesive layer 12.In order to form pressure-sensitive adhesive layer 12, for example, preparation contains the pressure sensitive adhesive that constitutes pressure-sensitive adhesive layer 12 and the coating agent of solvent if desired.Use coating machine such as roller coating machine then, doctor knife coater, the knife-over-roll coating machine, Kohler coater, die coater, metering bar coater, the grooved roll coating machine, curtain coaters etc. are applied over the adherent surfaces of non-stick material 13 with the coating agent, and are dry again.
Then, shown in Fig. 3 (c), base material 11 is adhered on the surface of pressure-sensitive adhesive layer 12, obtains, the laminate that pressure-sensitive adhesive layer 12 and non-stick material 13 constitute by base material 11 with pressure.In addition, shown in Fig. 3 (d), on the gained laminate, form through hole 2.In this production method, through hole 2 forms by the processing of laser beam machinery.Preferably, carry out the processing of laser beam machinery from non-stick material 13 sides.When being processed to form through hole 2 by laser beam machinery, because as shown in Figure 2, through hole 2 is tapered in many cases, thus by carrying out laser beam machinery processing from non-stick material 13 sides, in the aperture of the through hole 2 of base material 11 sides less than aperture in non-stick material 13 sides.Therefore, the through hole 2 on the surface of pressure-sensitive adhesive sheets 1 is more inconspicuous, makes the outward appearance of pressure-sensitive adhesive sheets 1 to remain under the good state.
The type that is used for the laser of laser beam machinery processing is not special restriction.As for laser, can use for example carbonic acid gas (CO
2) laser apparatus, TEA-CO
2Laser apparatus, YAG laser apparatus, UV-YAG laser apparatus, semiconductor laser, YVO
4Laser apparatus, YLF Lasers device etc.
Note, when using pressure-sensitive adhesive sheets 1, peel off non-stick material 13 from pressure-sensitive adhesive layer 12.
In this production method, removable protection sheet material can be laminated to the surface of base material 11 in the arbitrary steps that carries out laser beam machinery first being processed.As the protection sheet material, can use the known pressure sensitive adhesive protection sheet material that for example constitutes by base material and removable pressure-sensitive adhesive layer etc.
When being processed to form through hole 2 by laser beam machinery, in some cases, because the melt (so-called dregs) that causes of heating can be attached to around the opening of through hole 2.Yet if will protect sheet material to be laminated to the surface of base material 11, dregs can be attached to the protection sheet material but not base material 11 so.Like this, the outward appearance of pressure-sensitive adhesive sheets 1 can remain under the better state.In addition, if carry out the processing of laser beam machinery from protection sheet material side because through hole 2 forms in tapered mode, thus in the aperture of the through hole 2 on the surface of base material 11 less than the aperture when not using the protection sheet material.
Usually after having produced pressure-sensitive adhesive sheets 1 or before adhesion pressure-sensitive adhesive sheets 1, peel off above protection sheet material from base material 11.Yet, pressure-sensitive adhesive sheets 1 can be adhered to adherend, peel off this protection sheet material after the sheet material of lamination protection thereon simultaneously.When the protection sheet material was peeled off after being adhered to pressure-sensitive adhesive sheets 1 on the adherend, through hole 2 needed to connect protection sheet material and pressure-sensitive adhesive layer 12 and base material 11.On the other hand, when peeling off the protection sheet material before adhesion pressure-sensitive adhesive sheets 1, through hole 2 needn't break-through protection sheet material.That is to say, when carrying out the processing of laser beam machinery by non-stick material 13 sides, can be so that by non-stick material 13, the hole of pressure-sensitive adhesive layer 12 and base material 11 is formed up to the mode irradiating laser at the middle part of protection sheet material.
[production of adhesive sheet (2)]
Another example of method of the pressure-sensitive adhesive sheets 1 of above embodiment is produced in open-birth with reference to figure 4 (a)-(e).
In this production method, shown in Fig. 4 (a)-(b), on the adherent surfaces of factorial lumber material 3, form base material 11.In order to form base material 11, for example, preparation contains the resin that constitutes base material 11 and the coating agent of solvent if desired.Use coating machine such as roller coating machine then, doctor knife coater, the knife-over-roll coating machine, Kohler coater, die coater, metering bar coater, the grooved roll coating machine, curtain coaters etc. are applied over factorial lumber material 3 with the coating agent, and are dry again.
On the other hand, shown in Fig. 4 (c), use the identical method of formation pressure-sensitive adhesive layer with the production method (1) of aforesaid pressure-sensitive adhesive sheets, formation pressure-sensitive adhesive layer 12 on the adherent surfaces of non-stick material 13.
Then, shown in Fig. 4 (d), will be with pressure by factorial lumber material 3 and base material 11 laminate that constitutes and the laminate bonding that constitutes by pressure-sensitive adhesive layer 12 and non-stick material 13, make and closely contact with the pressure-sensitive adhesive layer 12 that on non-stick material 13, forms at the base material 11 that forms on the factorial lumber material 3, acquisition is by factorial lumber material 3, base material 11, the laminate that pressure-sensitive adhesive layer 12 and non-stick material 13 constitute.
Shown in Fig. 4 (e), on the gained laminate, form through hole 2.In this production method, through hole 2 forms by the processing of laser beam machinery.Based on the identical reason of method (1) of aforesaid production pressure-sensitive adhesive sheets, preferably carry out this laser beam machinery processing from non-stick material 13 sides.Yet, if carry out laser beam machinery processing from factorial lumber material 3 sides because through hole 2 is tapered, so in the aperture of the through hole 2 on the surface of base material 11 less than the aperture when not using factorial lumber material 3.
In addition, when forming through hole 2 by the processing of laser beam machinery, in some cases, dregs can be attached to the around openings of through hole 2.Yet, because factorial lumber material 3 is laminated to the surface of base material 11 in this production method, so dregs are attached to factorial lumber material 3 but not base material 11.Like this, the outward appearance of pressure-sensitive adhesive sheets 1 can remain under the better state.
Note, when using pressure-sensitive adhesive sheets 1, peel off non-stick material 13 from pressure-sensitive adhesive layer 12.On the other hand, after having produced pressure-sensitive adhesive sheets 1 or before adhesion pressure-sensitive adhesive sheets 1, peel off factorial lumber material 3 usually from base material 11.Yet factorial lumber material 3 can be adhered to adherend with pressure-sensitive adhesive sheets 1, and lamination process is just peeled off with material 3 afterwards thereon simultaneously.When factorial lumber material 3 was peeled off after pressure-sensitive adhesive sheets 1 is adhered to adherend, through hole 2 needed penetrating factorial lumber material 3 and pressure-sensitive adhesive layer 12 and base material 11.When factorial lumber material 3 was peeled off before adhesion pressure-sensitive adhesive sheets 1, through hole 2 needn't penetrating factorial lumber material 3.That is to say, when carrying out the processing of laser beam machinery by non-stick material 13 sides, can be so that by non-stick material 13, the hole of pressure-sensitive adhesive layer 12 and base material 11 be formed up to the mode irradiating laser at the middle part of factorial lumber material 3.
[production of adhesive sheet (3)]
Another example of the method for the pressure-sensitive adhesive sheets 1 of producing above embodiment is described with reference to figure 5 (a)-(f).
In this production method, as shown in Fig. 5 (a)-(c), with the method production identical with the production method (1) of aforesaid pressure-sensitive adhesive sheets by base material 11, the laminate that pressure-sensitive adhesive layer 12 and non-stick material 13 constitute.
As shown in Fig. 5 (d), peel off non-stick material 13 from pressure-sensitive adhesive layer 12, then as from pressure-sensitive adhesive layer 12 sides laser being shone directly on the pressure-sensitive adhesive layer 12 as shown in Fig. 5 (e).After this, shown in Fig. 5 (f), once more non-stick material 13 is adhered to pressure-sensitive adhesive layer 12.
When simultaneously non-stick material 13 being laminated to pressure-sensitive adhesive layer 12 by non-stick material 13 side irradiating lasers, as as shown in Fig. 6 (a), in some cases, the raw material that depends on non-stick material 13, because at the dregs that the around openings of the through hole 2 of non-stick material 13 forms, the opening of the through hole 2 of pressure-sensitive adhesive layer 12 enlarges.In this case, the tolerance range of the aperture of the through hole 2 that forms on pressure-sensitive adhesive sheets 1 or hole density reduces.In addition, if the opening of the through hole 2 of pressure-sensitive adhesive layer 12 enlarges, the internal space of through hole 2 becomes big so, makes after pressure-sensitive adhesive sheets 1 is adhered to adherend, in any case air in through hole 2 or the water etc. that enters through hole 2 can influence the surface of pressure-sensitive adhesive sheets 1.This class problem takes place probably, when non-stick material 13 by resin such as polyethylene terephthalate, during preparation such as polypropylene.
According to this production method, in case peel off antiseized funeral music 13 and laser shone directly into bonding coat 12, shown in Fig. 6 (b), the opening of the through hole 2 of pressure-sensitive adhesive layer 12 does not enlarge, and has therefore obtained the pinpoint accuracy of aperture or hole density and the little internal space of through hole 2.In addition, when with laser radiation when not inserting the pressure-sensitive adhesive layer 12 of non-stick material 13, laser irradiation time can shorten or laser output energy can be low.If laser output energy is low, heat has slight influence to pressure-sensitive adhesive layer 12 and base material 11, therefore, can reduce dregs etc., and the through hole 2 that can form uniform shapes.
Notice that in above production method (1)-(3), form pressure-sensitive adhesive layer 12 on non-stick material 13, the pressure-sensitive adhesive layer 12 and the base material 11 that will form so are adhered together again.Yet, the invention is not restricted to this.For example, pressure-sensitive adhesive layer 12 can directly form on base material 11, and pressure-sensitive adhesive layer 12 of Xing Chenging and non-stick material 13 can be adhered together like this.
[purposes of adhesive sheet]
When being adhered to pressure-sensitive adhesive sheets 1 on the adherend, peel off non-stick material 13 from pressure-sensitive adhesive layer 12, pressure-sensitive adhesive sheets 1 is pressed to adherend, the adhesive face of the feasible pressure-sensitive adhesive layer 12 that exposes closely contacts with adherend.At this moment, because the air between the adhesive face of adherend and pressure-sensitive adhesive layer 12 is discharged into the outside of the surperficial 1A of pressure-sensitive adhesive sheets 1 via the through hole 2 that forms in pressure-sensitive adhesive sheets 1, air almost can not be held back between adherend and adhesive face, thereby can prevent air trapping.Even air is trapped and has formed air trapping, by oppressing the near zone (comprising the air trapping part) of air trapping part or air trapping part once more, air is discharged into the outside of the surperficial 1A of pressure-sensitive adhesive sheets via through hole 2, thereby can eliminate air trapping.Even also can eliminate this air trapping for a long time at adhesion pressure-sensitive adhesive sheets 1.
In addition, even gas is discharged into the outside of the surperficial 1A of pressure-sensitive adhesive sheets 1 via the through hole 2 that forms on pressure-sensitive adhesive sheets 1 when having produced gas by adherend after pressure-sensitive adhesive sheets 1 is adhered to adherend.Therefore, can prevent bubble on pressure-sensitive adhesive sheets 1.
Can prevent or remove air trapping or bubble with aforesaid pressure-sensitive adhesive sheets 1.The through hole 2 that forms on pressure-sensitive adhesive sheets 1 is superfine, and therefore, pressure-sensitive adhesive sheets is not reduced by disfigurement and bond strength, although there is through hole 2.
[other embodiment]
In the pressure-sensitive adhesive sheets 1 of above embodiment, through hole 2 penetrates non-stick material 13.Yet, the invention is not restricted to this.For example, through hole 2 can only penetrate base material 11 and pressure-sensitive adhesive layer 12.In addition, the pressure-sensitive adhesive sheets 1 of above embodiment has non-stick material 13, but the invention is not restricted to this.For example, non-stick material 13 can not exist.In these cases, the raw material of non-stick material 13 needs not be the raw material that wherein can form through hole 2.In addition, the size of the pressure-sensitive adhesive sheets 1 of above embodiment, shape etc. are not special restrictions.
For example, pressure-sensitive adhesive sheets 1 can be the adhesive tape shape sheet material that only is made of base material 11 and pressure-sensitive adhesive layer 12, and it can be wound in coiled material.In this case, pressure-sensitive adhesive layer 12 overlaps on the surface of base material 11 (the not face of lamination pressure-sensitive adhesive layer 12).Therefore, preferably, the surface of base material 11 has anti-adhesion performance, makes when when coiled material is pulled out Pressuresensitive Tape, can successfully peel off from the surface of base material 11 at eclipsed pressure-sensitive adhesive layer 12 on the surface of base material 11.
As base material 11, for example, can use (1) its surface to use polysiloxane-based, fluorine class or the amino formate release agent that contains chain alkyl carry out the aforesaid resin film of release treatment, (2) itself has the material of anti-adhesion performance, for example, by polyolefin resin such as polyethylene, the film of preparations such as polypropylene and (3) are by above material that will have anti-adhesion performance and the material with low anti-adhesion performance, for example the laminated film that lamination obtained such as polyethylene terephthalate.Note, under the situation of above (2), preferably, on the back side of base material 11 (face of lamination pressure-sensitive adhesive layer 12), strengthen processing with the bond strength of pressure-sensitive adhesive layer 12 such as Corona discharge Treatment, fire-retardant finish, treatment with uv radiation, primary coat is handled, solvent treatment etc.
Above Pressuresensitive Tape for example can be produced by following production method.
(1) pressure sensitive adhesive is coated the surface of base material 11.Laminate is wound in coiled material, and simultaneously, pressure sensitive adhesive is transferred to the bottom surface of base material 11 from the surface of base material 11.Then, pull out the laminate that constitutes by base material 11 and the pressure-sensitive adhesive layer 12 that is laminated to the back side of base material 11 from coiled material.Laser is shone on the laminate from pressure-sensitive adhesive layer 12 sides, form through hole 2.After this, once more laminate is wound in coiled material.
(2) pressure sensitive adhesive is coated the back side of base material 11, dry again, form pressure-sensitive adhesive layer 12.Then, laser is shone on the laminate from pressure-sensitive adhesive layer 12, form through hole 2, once more laminate is wound in coiled material.
(3) pressure sensitive adhesive is coated on the adherent surfaces of non-stick material 3.Non-stick material 3 and base material 11 are wound in coiled material, simultaneously they are adhered together, make pressure sensitive adhesive closely contact the back side of base material 11.After this, when pressure-sensitive adhesive layer 12 is peeled off non-stick material 3, pull out the laminate that constitutes by base material 11 and pressure-sensitive adhesive layer 12 from coiled material.From pressure-sensitive adhesive layer 12 sides with laser radiation on laminate, form through hole 2.Then, above laminate is wound in coiled material, the non-stick material 3 of need not adhering.
In aforesaid any production method, because form through hole 2 in the laminate that is made of base material 11 and pressure-sensitive adhesive layer 12, when laminate was wound in coiled material, air was trapped hardly.So, easily formed the coiled material that does not have air trapping.
[embodiment]
Below use embodiment to wait and be described more specifically the present invention.Yet scope of the present invention is not limited to or is not subjected to the restriction of these embodiment etc.
[embodiment 1]
The ethyl acetate of 25 weight parts is joined 100 parts by weight of acrylic class pressure sensitive adhesives (by Nippon Synthetic Chemical Industry Co., Ltd. the CoponylN-2147 of Sheng Chaning, solids content: 35wt%), isocyanates linking agent (by Nippon Polyurethane Industry Co., the Colonate L that Ltd. produces) with 1 weight part joins among them then.This mixture is fully stirred, obtain the coating agent of pressure sensitive adhesive.
By laminated polyethylene on two faces of the paper of wood-free and on a face the polysiloxane-based release agent of coating produce non-stick material (by the FPM-11 that Lintec Corporation produces, thickness: 175 μ m).With doctor knife coater the coating agent of pressure sensitive adhesive is coated on the adherent surfaces of non-stick material, so that obtain the thickness after drying of 30 μ m, the coating agent with pressure sensitive adhesive descended dry 1 minute at 90 ℃ again, formed pressure-sensitive adhesive layer.(thickness: polyvinyl chloride 100 μ m) adheres on the pressure-sensitive adhesive layer of such formation, obtains the laminate of 3-tier architecture with opaque fast black base bottom material with pressure.
From the non-stick material side with the UV-YAG laser radiation on the gained laminate, make with 1 156/100cm
2Hole density formed the through hole that has the aperture of 15-35 μ m on the surface of base material, produced pressure-sensitive adhesive sheets like this.
[embodiment 2]
Produce pressure-sensitive adhesive sheets in mode similar to Example 1, just the aperture at the through hole on the surface of base material is that 40-50 μ m and hole density are 4,900/100cm
2
[embodiment 3]
Obtain the laminate of three-decker in the mode similar to embodiment 1, just for base material, use transparent pet film (by the Lumirror T60 of Toray Inc. production, thickness: 50 μ m) replace polyvinyl chloride, and for non-stick material, use is coated with the polyethylene terephthalate of polysiloxane-based release agent (by the PET7511 that LintecCorporation produces, thickness: 75 μ m) in one side.
From the non-stick material side excimer laser is shone on the gained laminate, make with 10 000/100cm
2Hole density formed the aperture that has 0.5-10 μ m on the surface of base material and had the through hole in the aperture (be in the aperture of adhesive face in base material and pressure-sensitive adhesive layer maximum diameter) of 20-30 μ m at adhesive face, produced pressure-sensitive adhesive sheets like this.
[embodiment 4]
Produce pressure-sensitive adhesive sheets according to the mode identical with embodiment 1, just laser is about 60 μ m from the irradiation of base material side with in the aperture of the through hole on the surface of base material.
[embodiment 5]
Produce pressure-sensitive adhesive sheets in mode similar to Example 1, only be to use CO
2Laser apparatus is used for laser the processing of laser beam machinery and is about 100 μ m in the aperture of the through hole on the surface of base material from base material side irradiation.
[embodiment 6]
Produce pressure-sensitive adhesive sheets in mode similar to Example 1, just the aperture at the through hole on the surface of base material is that 140-150 μ m and hole density are 100/100cm
2
[embodiment 7]
Produce pressure-sensitive adhesive sheets in the mode similar, only be to use CO to embodiment 1
2Laser apparatus carries out laser beam machinery processing, and laser is from the irradiation of base material side, is that about 250 μ m and hole density are 49/100cm in the aperture of the through hole on the surface of base material
2
[embodiment 8]
Producing pressure-sensitive adhesive sheets in the mode similar to embodiment 1, just peel off non-stick material, then from adhesive face side irradiating laser, and is about 50 μ m in the aperture of the through hole on the surface of base material.
[embodiment 9]
Obtain the laminate of three-decker in mode similar to Example 1, just for base material, use transparent pet film (by the Lumirror T60 that Toray Inc. produces, thickness: 50 μ m) replace polyvinyl chloride.
From the base material side with CO
2Laser illumination makes with 1 156/100cm on the gained laminate
2Hole density formed the aperture that has about 70 μ m on the surface of base material and had the through hole in the aperture (be in the aperture of adhesive face in base material and pressure-sensitive adhesive layer maximum diameter) of about 80 μ m at adhesive face, produced pressure-sensitive adhesive sheets like this.
[embodiment 10]
Vinyl chloride resin with 100 weight parts, 2.5 the UV light absorber of weight part (benzotriazole category), the polyester softening agent of 25 weight parts is (by Asahi Denka Co., Ltd. the Adekasizer PN260 of Sheng Chaning), the phthalic ester plasticizer of 10 weight parts (by the DOP of ChissoCorporation production), the tinting material of 20 weight parts is (by Dainichiseika Color﹠amp; Chemicals Mfg.Co., Ltd. the VTSK9311b lack of Sheng Chaning), the thermo-stabilizer of 3 weight parts (Ba/Zn class), the solvent of solvent of 25 weight parts (ethylene glycol butyl ether) and 25 weight parts (by the Supersol #1500 of Godo Solvents Co. production) mixes, and obtains the coating agent of base material.
As the factorial lumber material, the pet film of a face release treatment of preparation is (by the U4Z-50 that Teijin DuPont Films Japan Limited produces, thickness: 50 μ m).The coating agent of base material is coated the adherent surfaces of factorial lumber material with doctor knife coater, so that obtain the thickness after drying of 100 μ m, again with the coating agent of base material 140 ℃ dry 1 minute and down further 190 ℃ of dryings 2 minutes down, thereby form opaque fast black base bottom material.
On the other hand, on non-stick material, form pressure-sensitive adhesive layer in the mode similar to embodiment 1, by with pressure with pressure-sensitive adhesive layer and the base material bonding that on above factorial lumber material, forms, making it closely contacts obtains 4 layers of structural sheet casting die.
From factorial lumber material side with CO
2Laser illumination on the gained laminate, with 1,156/100cm
2The hole density surface that is formed on base material have the through hole in the aperture of about 65 μ m, produced pressure-sensitive adhesive sheets like this.
[embodiment 11]
Producing pressure-sensitive adhesive sheets in mode similar to Example 10, only be to use the UV-YAG laser apparatus to carry out laser beam machinery processing, from non-stick material side irradiating laser, and is 20-40 μ m in the aperture of the through hole on the surface of base material.
[embodiment 12]
Laminate with the mode production three-decker similar to embodiment 1.Then, from the non-stick material side with CO
2Laser illumination on laminate, with 2,500/100cm
2The hole density surface that is formed on base material have the aperture of 40-50 μ m and have the through hole in the aperture of 120-150 μ m at adhesive face, obtained pressure-sensitive adhesive sheets.
[embodiment 13]
Laminate with the mode production three-decker similar to embodiment 1.Then, peel off non-stick material from pressure-sensitive adhesive layer, again from the pressure-sensitive adhesive layer side with CO
2Laser illumination on laminate, with 2,500/100cm
2The hole density surface that is formed on base material have the aperture of 40 μ m and have the through hole in the aperture of about 80 μ m at adhesive face.With pressure non-stick material is adhered to pressure-sensitive adhesive layer once more, obtains pressure-sensitive adhesive sheets.
[embodiment 14]
Laminate with mode production three-decker similar to Example 1.Then, will by base material and removable pressure-sensitive adhesive layer (by Panac Co., the HT25SCBA that Ltd. produces, thickness: the pressure sensitive adhesion protection sheet material that 28 μ m) constitutes is adhered to the surface of the base material of laminate.
Peel off non-stick material from the pressure-sensitive adhesive layer of laminate, then from the pressure-sensitive adhesive layer side with CO
2Laser illumination on laminate, with 2,500/100cm
2The hole density surface that is formed on base material have the through hole in the aperture of 35 μ m.With pressure non-stick material is adhered to pressure-sensitive adhesive layer once more, releasing pressure sensitive adhesive protection sheet material has been produced pressure-sensitive adhesive sheets like this from the base material.
[embodiment 15]
As base material, prepare the transparent pet film of one face with polysiloxane-based release agent (by ToyoMetallizing Co., the Cerapeel BK (T) that Ltd. produces, thickness 38 μ m) release treatment.The adherent surfaces of base material is coated with doctor knife coater in the coating agent of the pressure sensitive adhesive that obtains in embodiment 1, makes it to reach drying after the thickness of 30 μ m, again with the coating agent of pressure sensitive adhesive 90 ℃ of dryings 1 minute down.Like this, obtain by base material and be laminated to the lamination adhesive tape (A) of 2 layers of structure that the pressure-sensitive adhesive layer on the adherent surfaces of base material constitutes.
Next, above lamination adhesive tape (A) is wound in coiled material, simultaneously, pressure sensitive adhesive is transferred to from the adherent surfaces of base material on the non-adherent surfaces of base material, obtains by base material and is laminated to the lamination adhesive tape (B) of 2 layers of structure that the pressure-sensitive adhesive layer on the non-adherent surfaces of base material constitutes.
Pull out gained lamination adhesive tape (B) from coiled material, from the pressure-sensitive adhesive layer side with laser radiation in lamination adhesive tape (B), with 2,500/100cm
2Hole density formed aperture that has about 50 μ m on the surface of base material and the through hole that has the aperture of about 95 μ m at adhesive face (is maximum diameter in the aperture of adhesive face).
Then, the lamination adhesive tape (B) that will wherein form through hole once more is wound in coiled material, has produced pressure-sensitive bonding adhesive tape (pressure-sensitive adhesive sheets) like this.
[embodiment 16]
Produce the laminate of 3-tier architecture in mode similar to Example 9.Then, peel off non-stick material from pressure-sensitive adhesive layer, from the pressure-sensitive adhesive layer side with CO
2Laser illumination on laminate, with 2,500/100cm
2The hole density surface that is formed on base material have the aperture of about 35 μ m and have the through hole in the aperture (is maximum diameter in the aperture of adhesive face) of about 85 μ m at adhesive face.With pressure non-stick material is adhered to pressure-sensitive adhesive layer once more, obtains pressure-sensitive adhesive sheets.
[comparative example 1]
Laminate with mode production three-decker similar to Example 1.Do not form any through hole, produced pressure-sensitive adhesive sheets.
[comparative example 2]
Produce pressure-sensitive adhesive sheets in mode similar to Example 1, just the hole density of through hole is 4/100cm
2
[comparative example 3]
Produce pressure-sensitive adhesive sheets in mode similar to Example 1, just the bore dia from base material side irradiating laser and through hole is about 500 μ m.
[comparative example 4]
Produce pressure-sensitive adhesive sheets in mode similar to Example 2, just for base material, use transparent pet film (by the LumirrorT60 of Toray Inc. production, thickness: 50 μ m) replace polyvinyl chloride, the hole density that in the aperture of the through hole of adhesive face is about 130-140 μ m and through hole is 102,400/100cm
2
[EXPERIMENTAL EXAMPLE]
Gained pressure-sensitive adhesive sheets among the embodiment of being used in 1-16 as follows and the comparative example 1-4 is eliminated the test of air trapping and the test of tensile strength.And whether the surface that pressure-sensitive adhesive sheets is judged in range estimation disfigurement or be not that existence because of through hole causes, and the inspection of carrying out the hole visibility as follows.
Eliminate the test of air trapping: the pressure-sensitive adhesive sheets that will cut into 50mm * 50mm is adhered to the plate of melamine coating, makes formation have the air trapping of the annular shape in 15mm aperture, oppresses pressure-sensitive adhesive sheets with squeegee then.As a result, when eliminating air trapping, represent, when air trapping reduces, represent with △ with zero, and usefulness * expression when air trapping keeps.
The test of tensile strength: pressure-sensitive adhesive sheets is cut into width 10mm and length 150mm, peel off non-stick material again.Clamp distance with 100mm places pressure-sensitive adhesive sheets (adhesive tape) on the tensile strength test instrument (by Orientec Co., the Tensilon that Ltd. makes), applies the tensile strength of 200mm/min again.When rupturing in 10 seconds, pressure-sensitive adhesive sheets do not represent with zero, and usefulness * expression when pressure-sensitive adhesive sheets ruptured in 10 seconds.
The inspection of hole visibility: pressure-sensitive adhesive sheets (if the lamination non-stick material has been peeled off the pressure-sensitive adhesive sheets of non-stick material) is adhered on the plate of white melamine coating.Under indoor fluorescent lighting, on the surface of pressure-sensitive adhesive sheets, check depends on whether naked eyes are visible or invisible for the hole (internal space of through hole) of through hole in aperture itself.Notice that the distance from eyes to the pressure-sensitive adhesive sheets is about 30cm, and change the visual angle.When the internal space of through hole is invisible, represent, when the internal space of through hole part is invisible, represent with △ with zero, and usefulness * expression when the space, internal space of through hole.
Each result of experiment is shown in the table 1.
[table 1]
| Air trapping is eliminated | Tensile strength | Outward appearance | The | |
| Embodiment | ||||
| 1 | ○ | ○ | ○ | ○ |
| | ○ | ○ | ○ | △ |
| | ○ | ○ | ○ | ○ |
| Embodiment 4 | ○ | ○ | ○ | × |
| Embodiment 5 | ○ | ○ | ○ | × |
| Embodiment 6 | ○ | ○ | ○ | × |
| Embodiment 7 | ○ | ○ | ○ | × |
| Embodiment 8 | ○ | ○ | ○ | × |
| Embodiment 9 | ○ | ○ | ○ | × |
| Embodiment 10 | ○ | ○ | ○ | × |
| | ○ | ○ | ○ | ○ |
| | ○ | ○ | ○ | △ |
| | ○ | ○ | ○ | △ |
| Embodiment 14 | ○ | ○ | ○ | ○ |
| Embodiment 15 | ○ | ○ | ○ | × |
| Embodiment 16 | ○ | ○ | ○ | △ |
| The comparative example 1 | × | ○ | ○ | - |
| The comparative example 2 | ×～△ | ○ | ○ | ○ |
| The comparative example 3 | ○ | ○ | × | × |
| The comparative example 4 | ○ | × | ○ | △～× |
Obviously as can be seen from Table 1, the pressure-sensitive adhesive sheets that obtains in embodiment 1-16 can be eliminated air trapping easily and have full intensity, and their outward appearance remains under the good state.In addition, the hole of through hole itself is sightless on the surface of the pressure-sensitive adhesive sheets of acquisition in embodiment 1,3,11 and 14 especially.
Industrial applicability
When usually probably forming air trapping or bubble, for example, when the area of pressure-sensitive adhesive sheets is larger, when producing gas by adherend etc., can preferably use according to pressure-sensitive adhesive sheets of the present invention with the pressure-sensitive adhesive sheets of production method production of the present invention.
Claims (9)
1, pressure-sensitive adhesive sheets, comprise and wherein formed base material and the pressure-sensitive adhesive layer that penetrates a plurality of through holes of another face from a face, wherein the aperture at the through hole of base material and pressure-sensitive adhesive layer is that 0.1-300 μ m and hole density are 30-50,000/100cm
2, when adhering to this pressure-sensitive adhesive sheets on the adherend, its formation makes the air between above-mentioned adherend and this pressure-sensitive adhesive sheets be discharged into the outside via above-mentioned through hole.
2, according to the pressure-sensitive adhesive sheets of claim 1, wherein the aperture of through hole diminishes to the surface gradually from the back side of pressure-sensitive adhesive sheets.
3, according to the pressure-sensitive adhesive sheets of claim 1 or 2, wherein through hole forms by the processing of laser beam machinery.
4, produce the method for pressure-sensitive adhesive sheets, comprise the following steps:
Preparation comprises base material, the pressure-sensitive adhesive sheets of pressure-sensitive adhesive layer and other non-stick material if desired, and
On pressure-sensitive adhesive sheets, carry out pore-forming processing, form through hole, make in the aperture of base material and pressure-sensitive adhesive layer it is that 0.1-300 μ m and hole density are 30-50,000/100cm
2
When adhering to this pressure-sensitive adhesive sheets on the adherend, the formation of the pressure-sensitive adhesive sheets that makes makes the air between above-mentioned adherend and this pressure-sensitive adhesive sheets be discharged into the outside via above-mentioned through hole.
5, according to the method for the production pressure-sensitive adhesive sheets of claim 4, wherein pore-forming processing is the processing of laser beam machinery.
6, according to the method for the production pressure-sensitive adhesive sheets of claim 5, wherein carry out the processing of laser beam machinery from the rear side of pressure-sensitive adhesive sheets.
7, according to the method for the production pressure-sensitive adhesive sheets of claim 6, wherein with the laser direct irradiation in pressure-sensitive adhesive layer.
8, according to the method for the production pressure-sensitive adhesive sheets of claim 6, wherein peeling laminated in the non-stick material of pressure-sensitive adhesive layer from the pressure-sensitive adhesive layer, the laser direct irradiation in pressure-sensitive adhesive layer, and then is laminated to pressure-sensitive adhesive layer with non-stick material.
9, according to each the method for production pressure-sensitive adhesive sheets of claim 4-8, wherein carry out the processing of laser beam machinery, simultaneously factorial lumber material or removable protection sheet material are laminated on the surface of base material.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP379279/2002 | 2002-12-27 | ||
| JP2002379279 | 2002-12-27 | ||
| JP304028/2003 | 2003-08-28 | ||
| JPPCT/JP03/13866 | 2003-10-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1738881A CN1738881A (en) | 2006-02-22 |
| CN100347260C true CN100347260C (en) | 2007-11-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2003801087110A Expired - Fee Related CN100347260C (en) | 2002-12-27 | 2003-12-03 | Adhesive sheet and method for manufacturing same |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN100347260C (en) |
| ZA (1) | ZA200505978B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106471082A (en) * | 2014-06-27 | 2017-03-01 | 日东电工株式会社 | The adhesive film of strip |
| CN109749649A (en) * | 2018-02-01 | 2019-05-14 | 刘安夏 | A kind of stress tearing adhesive tape |
| CN111032333A (en) * | 2017-08-25 | 2020-04-17 | 3M创新有限公司 | Adhesive article allowing for non-destructive removal |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010069091A1 (en) * | 2008-12-16 | 2010-06-24 | Chiang Paohua | Flexible self-adhesive film, self-adhesive bulletin board and method |
| JP5711956B2 (en) * | 2010-12-17 | 2015-05-07 | 東洋アルミエコープロダクツ株式会社 | Adhesive sheet |
| JP6181111B2 (en) * | 2014-06-27 | 2017-08-16 | 日東電工株式会社 | Manufacturing method of long adhesive film |
| CN113667418B (en) * | 2015-06-25 | 2024-03-15 | 日东电工株式会社 | Method for producing adhesive film |
| JP6142045B2 (en) * | 2015-06-25 | 2017-06-07 | 日東電工株式会社 | Method for producing adhesive film and method for producing polarizer |
| CN106829163A (en) * | 2017-04-02 | 2017-06-13 | 广东天银实业有限公司 | A kind of food pack and its edge sealing process |
| CN110938386B (en) * | 2018-09-25 | 2022-06-28 | 上海和辉光电股份有限公司 | Film packaging structure protective film and film removing method thereof |
| CN116285715A (en) * | 2022-11-18 | 2023-06-23 | 深圳市国显科技有限公司 | Novel structure of fixed membrane double-sided adhesive tape |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5275856A (en) * | 1991-11-12 | 1994-01-04 | Minnesota Mining And Manufacturing Company | Electrically conductive adhesive web |
-
2003
- 2003-12-03 CN CNB2003801087110A patent/CN100347260C/en not_active Expired - Fee Related
-
2005
- 2005-07-26 ZA ZA200505978A patent/ZA200505978B/en unknown
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5275856A (en) * | 1991-11-12 | 1994-01-04 | Minnesota Mining And Manufacturing Company | Electrically conductive adhesive web |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106471082A (en) * | 2014-06-27 | 2017-03-01 | 日东电工株式会社 | The adhesive film of strip |
| CN106471082B (en) * | 2014-06-27 | 2021-07-13 | 日东电工株式会社 | Long-strip-shaped adhesive film |
| CN111032333A (en) * | 2017-08-25 | 2020-04-17 | 3M创新有限公司 | Adhesive article allowing for non-destructive removal |
| CN109749649A (en) * | 2018-02-01 | 2019-05-14 | 刘安夏 | A kind of stress tearing adhesive tape |
Also Published As
| Publication number | Publication date |
|---|---|
| ZA200505978B (en) | 2006-05-31 |
| CN1738881A (en) | 2006-02-22 |
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