WO2016059932A1 - Easy sticking pressure-sensitive adhesive tape or sheet - Google Patents

Easy sticking pressure-sensitive adhesive tape or sheet Download PDF

Info

Publication number
WO2016059932A1
WO2016059932A1 PCT/JP2015/076357 JP2015076357W WO2016059932A1 WO 2016059932 A1 WO2016059932 A1 WO 2016059932A1 JP 2015076357 W JP2015076357 W JP 2015076357W WO 2016059932 A1 WO2016059932 A1 WO 2016059932A1
Authority
WO
WIPO (PCT)
Prior art keywords
pressure
sensitive adhesive
sheet
adhesive tape
adhesive layer
Prior art date
Application number
PCT/JP2015/076357
Other languages
French (fr)
Japanese (ja)
Inventor
周二 市村
幸憲 古賀
Original Assignee
ニチバン株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ニチバン株式会社 filed Critical ニチバン株式会社
Priority to JP2016554024A priority Critical patent/JPWO2016059932A1/en
Publication of WO2016059932A1 publication Critical patent/WO2016059932A1/en

Links

Images

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J201/00—Adhesives based on unspecified macromolecular compounds
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/20—Adhesives in the form of films or foils characterised by their carriers

Definitions

  • the present invention provides a groove for facilitating the escape of a fluid such as a gas or liquid that has entered the gap with the adherend when the support layer or release separator is transferred to the surface of the adhesive layer and applied.
  • the present invention relates to an adhesive tape or sheet having an easy pasting function.
  • An adhesive tape or sheet generally has a structure in which an adhesive layer (called pressure sensitive adhesives in the world, called pressure sensitive adhesive) is laminated with a support, and the tape or sheet is brought into contact with the adherend. After that, pressure is applied from the support side to deform the pressure-sensitive adhesive layer, and the pressure-sensitive adhesive layer is filled between the support and the adherend to reduce the gap (generally referred to as pressure bonding). Is something
  • the pressure-sensitive adhesive layer may not be sufficiently filled in the gap depending on conditions such as the strength of pressure and the time for which it is applied, and there may be many gaps remaining between the adherend and the adherend.
  • the adhesive area is insufficient due to the reduced contact area, swelling occurs in the portion where the fluid such as gas or liquid remains, and the residual portion is conspicuous in the transparent adhesive tape or sheet. The appearance may be impaired.
  • a device for reducing the gap may be devised, but even in this case, a fluid such as gas or the liquid may remain in the gap, or the device may not be used depending on a situation in which an adhesive tape or sheet is applied.
  • Patent Document 1 proposes a proposal for an adhesive tape or sheet in which a groove is arranged from the surface of the adhesive layer that contacts the adherend surface to facilitate fluid removal during crimping to reduce the gap.
  • the function of facilitating the removal of a fluid such as a gas or liquid that has entered the gap with the adherend during pasting is maintained for an arbitrary period after the adhesive tape or sheet is brought into contact with the adherend. It aims at providing the adhesive tape or sheet
  • the inventors of the present invention have provided a support layer or a release separator with a concavo-convex shape that continues to the outside of the adhesive tape or sheet, and specified each parameter related to this concavo-convex shape Easy pasting with a groove to facilitate removal of fluids such as gas and liquid that have entered the gap with the adherend when pasting because the uneven shape is transferred to the surface of the adhesive layer.
  • the inventors have found that a pressure-sensitive adhesive sheet having a function can be provided, and have completed the present invention based on this finding.
  • an uneven shape is provided on one side of the support layer, and the height of the uneven portion is 45. 250 ⁇ m, the shortest bottom side distance of the convex part is 7-50 ⁇ m, the shortest bottom side distance of the concave part is 150-5000 ⁇ m, and the concave-convex ratio of the concave-convex shape exceeds 1.00 and is 2.00 times
  • the uneven shape is transferred to the surface of the pressure-sensitive adhesive layer, and the transferred uneven shape on the surface of the pressure-sensitive adhesive layer is continuous to the outside of the pressure-sensitive adhesive layer.
  • a pressure-sensitive adhesive tape or sheet having an easy pasting function with a groove for facilitating the removal of a fluid such as gas or liquid entering the gap is provided.
  • the surface of the release separator that is in contact with the pressure-sensitive adhesive layer is provided with an uneven shape
  • the height of the concavo-convex convex portion is 45 to 250 ⁇ m
  • the shortest bottom side distance of the convex portion is 7 to 50 ⁇ m
  • the shortest bottom side distance of the concave portion is 150 to 5000 ⁇ m
  • the concavo-convex shape of the concave and convex shape The ratio exceeds 1.00 and is within 2.00 times, the uneven shape is transferred to the surface of the pressure-sensitive adhesive layer, and the transferred uneven shape on the surface of the pressure-sensitive adhesive layer is continuous to the outside of the pressure-sensitive adhesive layer.
  • the present invention provides a pressure-sensitive adhesive tape or sheet having an easy pasting function in which a groove for facilitating the removal of a fluid such as a gas or a liquid that has entered a gap with an adherend is attached.
  • the present invention (3) is the pressure-sensitive adhesive tape or sheet according to the invention (1) or (2), wherein the unevenness is provided between the adherend and the support layer or release separator by applying the uneven shape. It is an object of the present invention to provide an adhesive sheet having an easy pasting function in which a groove for facilitating the removal of a fluid such as gas or liquid entering is provided.
  • the present invention provides a support layer or a release separator having a convex portion height of 45 to 250 ⁇ m, a convex portion bottom side shortest distance of 7 to 50 ⁇ m, and a concave portion bottom shortest distance of 150 to 5000 ⁇ m, and a concavo-convex ratio.
  • a concavo-convex shape that exceeds 1.00 and within 2.00 times, the shape is transferred to the surface of the adhesive layer, and a fluid such as gas or liquid that enters the gap between the adherends when applied is applied.
  • An adhesive tape or sheet having an easy pasting function with a groove for facilitating removal is provided.
  • the function can be maintained for an arbitrary period of time to reduce restrictions when applied, and the adhesive tape or sheet has good appearance after application. I will provide a.
  • FIG. 1 is a schematic view showing an uneven shape provided on a support or release separator according to the present invention.
  • FIG. 2 is a top view of the support or release separator according to the present invention.
  • the easily sticky pressure-sensitive adhesive tape or sheet of the present invention comprises at least a support layer and a pressure-sensitive adhesive layer.
  • seat of this invention consists of a support body layer, an adhesive layer, and a peeling separator at least.
  • the pressure-sensitive adhesive tape or sheet of the present invention is provided with a primer layer having good adhesion between both layers in order to improve the adhesion between both layers between the support layer and the pressure-sensitive adhesive layer. You can also.
  • FIG. 1 is a cross-sectional view of a support layer or a release separator according to the present invention.
  • the support layer or the release separator of the present invention is formed between an uneven shape (in the figure, a trapezoidal convex portion having a lower bottom larger than the upper bottom and adjacent trapezoids). Recesses) are provided.
  • the adhesive layer is closely_contact
  • FIG. 2 is a top view of the support layer or release separator according to the present invention.
  • the concavo-convex convex portion is continuous from the inside to the side surface (outside) of the adhesive tape or sheet.
  • the convex portion is transferred to the pressure-sensitive adhesive layer that comes into contact therewith, and a groove is formed from the inside of the pressure-sensitive adhesive tape or sheet to the side surface (outside).
  • the groove transferred to the adhesive layer does not lead to the outside of the adhesive tape or sheet.
  • a fluid such as gas or liquid that has entered the gap with the adherend during crimping cannot escape out of the adhesive tape or sheet.
  • the convex part formed on the support body layer or the peeling separator that the whole area
  • the convex portion a (for easy understanding, black line) is directly continuous to the side surface S1, and the other side surfaces (S2 to S4) are continuously connected indirectly via other convex portions. .
  • seat can be discharged
  • the base layer for the support layer or release separator used in the pressure-sensitive adhesive tape or sheet of the present invention is not particularly limited.
  • a plastic film, a nonwoven fabric, paper, a cloth, a metal foil, etc., and a composite thereof are used. It can be manufactured by extrusion molding, cast molding, rolling or the like, or by laminating the molded product by lamination or the like.
  • the raw material for the base substrate is not particularly limited, and for example, polyethylene, polypropylene, ethylene propylene copolymer, ethylene butene-1 copolymer, ethylene octene copolymer, ethylene vinyl acetate copolymer, ethylene vinyl, and the like.
  • Polyolefin materials such as alcohol copolymers, polyvinyl alcohol materials, acrylic materials such as polymethyl methacrylate, polyester materials such as polyethylene terephthalate and polybutylene terephthalate, polyamide materials such as nylon 6 and nylon 6,6, structure
  • Various ionomer materials with metal ions such as zinc and sodium, styrene materials such as polystyrene, styrene isoprene copolymer, styrene butadiene copolymer, polyurethane materials, vinyl chloride materials, fluorine materials, acetate
  • It can be used in combination cellulosic materials cellophane, rayon, such as cotton, aluminum, copper, silver, gold, tin, metal such as stainless steel or the like, one of the various materials or of two or more.
  • a plastic film (a laminate of one layer or two or more layers) that is easy to smooth the surface in order to reduce the surface roughness of the adhesive layer to which the contact and surface shape are transferred. ) Is preferably used.
  • the release function of the support layer or release separator used in the pressure-sensitive adhesive tape or sheet of the present invention is not particularly limited.
  • a silicone-based, fluorine-based, long-chain alkyl-based release agent is applied to the base substrate surface.
  • Coating and forming a film “Applying a mixture of the base substrate material and the peelability-imparting agent onto the base substrate and forming a film”, “Making only this mixture into a separator and separating it from itself. It can be given by “providing a mold function”.
  • the pressure-sensitive adhesive tape or sheet of the present invention is an anchor for corona discharge treatment, plasma treatment, flame treatment, etc. to the support in order to improve the adhesion between the support layer and the pressure-sensitive adhesive layer. It is also possible to carry out the treatment or to arrange a primer layer having good adhesion with both layers as described above.
  • the height of the convex part is 45 to 250 ⁇ m
  • the shortest distance of the bottom of the convex part is 7 to 50 ⁇ m
  • the shortest distance of the bottom of the concave part is 150 to 5000 ⁇ m.
  • the concavo-convex ratio is over 1.00 and within 2.00 times.
  • the height of a convex part is the height of the perpendicular part of a convex part, and means the length of B shown in FIG.
  • the height of the convex portion of the support layer or release separator of the pressure-sensitive adhesive tape or sheet of the present invention is 45 to 250 ⁇ m.
  • the thickness is preferably 50 ⁇ m to 150 ⁇ m, and more preferably 50 ⁇ m to 80 ⁇ m.
  • the filling of the groove due to the deformation of the pressure-sensitive adhesive layer becomes insufficient even after the pressure bonding, and particularly in a transparent pressure-sensitive adhesive tape or sheet, the residual portion is It may stand out and impair the appearance.
  • the shortest bottom side distance of the convex portion is the width at the bottom of the convex portion, and is the length of C shown in FIG.
  • the shortest distance between the bottoms of the convex portions of the support layer or release separator of the pressure-sensitive adhesive tape or sheet of the present invention is 7 to 50 ⁇ m.
  • the thickness is preferably 10 ⁇ m to 40 ⁇ m, more preferably 15 ⁇ m to 30 ⁇ m.
  • the filling of the groove due to the deformation of the pressure-sensitive adhesive layer becomes insufficient even after the pressure bonding, particularly in the case of a transparent pressure-sensitive adhesive tape or sheet. May stand out and the appearance may be impaired.
  • the shortest bottom side distance of the concave portion is the width at the bottom of the concave portion, which is the length of F shown in FIG.
  • the shortest distance of the bottom of the concave portion of the support layer or release separator of the pressure-sensitive adhesive tape or sheet of the present invention is 150 to 5000 ⁇ m.
  • the thickness is preferably 200 ⁇ m to 3000 ⁇ m, more preferably 400 ⁇ m to 2000 ⁇ m.
  • the shortest bottom side distance of the recess is less than 150 ⁇ m, the contact area between the back surface of the support layer or the release functional surface of the release separator and the pressure-sensitive adhesive layer increases, and the force (peeling force) when peeling off the pressure-sensitive adhesive layer ) Increases, and the peeling workability may deteriorate.
  • the bottom shortest distance of the recess is greater than 5000 ⁇ m, the groove is reduced, the ease of fluid removal is insufficient, and swelling occurs due to the residual fluid, especially in transparent adhesive tapes or sheets In the case of the residual portion, the appearance may be impaired.
  • the unevenness ratio is the ratio of the shortest repeated unevenness distance between parallel adjacent convex parts to the shortest repeated straight line distance between parallel adjacent convex parts, and each length shown in FIG. 1 is represented by (A + D + F + D) It is a numerical value calculated by / G.
  • seat of this invention exceeds 1.00, and is less than 2.00 times. Preferably, it is 1.10 times to 1.50 times, and more preferably 1.15 times to 1.45 times.
  • the concavo-convex ratio does not exceed 1, the grooves cannot be formed, the fluid is not easily removed, and the swell is generated due to the influence of the remaining fluid, especially in the case of a transparent adhesive tape or sheet. The remaining part may be noticeable and the appearance may be impaired.
  • the concavo-convex ratio exceeds 2.00 times, the contact area between the support layer or the release separator and the pressure-sensitive adhesive layer is increased, and the release force on the back surface of the support layer or the release functional surface of the release separator is increased. Workability may deteriorate.
  • Adhesive layer It does not specifically limit as an adhesive used for the adhesive layer of the adhesive tape or sheet
  • various adhesives such as a rubber type, an acrylic type, a urethane type, a silicone type, can be used.
  • a solvent-based pressure-sensitive solution dissolved in an organic solvent, an emulsion-based pressure-sensitive liquid dispersed in water, etc. is applied onto a support layer in a low-viscosity state and dried to increase the viscosity.”
  • Method “Applying a solvent-free pressure-sensitive adhesive on the support layer in a state where the viscosity is lowered by heating, and increasing the viscosity by cooling”, “Method on the support layer in a state where the viscosity immediately after mixing the two liquids is low
  • the method of ⁇ multi-layer coextrusion molding in a state in which the material of the support layer and the pressure-sensitive adhesive layer is lowered by heating '' is exemplified, but not limited thereto, Various methods can be used.
  • additives can be added to the layers of the support, the pressure-sensitive adhesive, and the release separator as needed as long as the purpose is not impaired.
  • the pressure-sensitive adhesive tape or sheet of the present invention in which the concavo-convex shape is arranged on the surface of the pressure-sensitive adhesive layer is previously provided with an arbitrary concavo-convex shape on the back surface of the support layer in contact with the pressure-sensitive adhesive layer during direct winding, and the concavo-convex shape is adhered. It is obtained by transferring to the surface of the agent layer.
  • Various methods known to those skilled in the art can be used to form an uneven shape on the back surface of the support layer.
  • the pressure-sensitive adhesive tape or sheet of the present invention in which the concavo-convex shape is arranged on the pressure-sensitive adhesive layer surface is provided with an arbitrary concavo-convex shape in advance on the release functional surface of the release separator in contact with the pressure-sensitive adhesive layer surface, and the shape is applied to the pressure-sensitive adhesive layer surface. It is obtained by transferring.
  • Various methods known to those skilled in the art can be used to form a concavo-convex shape on the surface of the release separator.
  • B-3 PP (Novatech EA9 manufactured by Nippon Polypro) is extruded with a T-die to produce a 400 ⁇ m sheet, and one side is corona-treated
  • Release separator S-1 Use B-1 as it is S-2: A silicone release agent (X-62-5040 manufactured by Shin-Etsu Chemical Co., Ltd.) is applied to the corona-treated surface of B-3, heat-dried, and cured by UV irradiation to form a film
  • Production method of adhesive tape or sheet P-1 Apply the adhesive solution diluted in toluene solvent to the corona-treated surface of the support that is not provided with the uneven shape, dry it, and wind it up while pressing it with a pressing roll to form the uneven shape on the back of the support.
  • the pressure-sensitive adhesive layer was peeled off from the concave-convex shape peeling functional surface on the back of the support, and the groove was transferred to the pressure-sensitive adhesive surface.
  • Make adhesive tape P-2 An adhesive solution diluted in a toluene solvent is applied to the corona-treated surface of a support that is not provided with an uneven shape, dried, and laminated with a release separator provided with an uneven shape while being pressure-bonded with a pressing roll.
  • the pressure-sensitive adhesive layer is pressed onto the pressure-sensitive adhesive layer to form a pressure-sensitive adhesive sheet with a release separator, and then the pressure-sensitive adhesive layer is peeled off from the surface of the pressure-sensitive adhesive surface of the release separator to produce a pressure-sensitive adhesive sheet with grooves transferred to the pressure-sensitive adhesive surface.
  • P-3 Corona on the side where the uneven surface of the support is not provided by applying the adhesive liquid diluted in toluene solvent to the release function surface provided with the uneven surface on the back of the support, drying it, and winding it while pressing with a pressing roll
  • the pressure-sensitive adhesive layer is peeled off from the concavo-convex shape peeling functional surface on the back of the support by bringing the treated surface and the pressure-sensitive adhesive layer into close contact to form a directly wound roll-shaped pressure-sensitive adhesive tape, and then rewinding the tape from the direct-winding roll.
  • Examples and Comparative Examples were produced using the constituent materials and production methods shown in Table 2.
  • Table 1 the structure of the uneven
  • the evaluation method of an Example and a comparative example is as follows. (1) Peelability from the back of the release separator or support For the adhesive tapes or sheets of 50 mm in length and 25 mm in width and comparative examples, peel 10 mm from the release separator or back of the support and the longitudinal edge of the adhesive sheet. The remaining 40 mm was chucked, and the T-type peeling force was measured at a speed of 300 mm / min. Table 2 shows “good” when the peel force is 5 N / 25 mm or less, and “bad” when it exceeds 5 N / 25 mm.
  • BASUS bright annealed stainless steel 304
  • a square example having a side length of 50 mm and an adhesive tape or sheet of a comparative example were applied, followed by a weight of 2 kg.
  • the pressure was reciprocated at a speed of 300 mm / min.
  • Eight hours after the pressure bonding whether or not the swelling caused by bubbles remaining between the BASUS panel and the groove provided on the surface of the pressure-sensitive adhesive layer was visible was visually confirmed from a distance of 500 mm from the test panel.
  • This evaluation was conducted by a tester with a corrected visual acuity of 1.2. Table 2 shows “good” when not visible and “bad” when visible.
  • Tables 1 and 2 show configurations and evaluation results of Examples and Comparative Examples.
  • the present invention easily removes fluids such as gas and liquid that have entered the gap with the adherend when affixing, and this function is applied to the adherend.
  • fluids such as gas and liquid that have entered the gap with the adherend when affixing
  • this function is applied to the adherend.
  • After contacting the pressure-sensitive adhesive tape or sheet it was a good pressure-sensitive adhesive tape or sheet that lasted for an arbitrary period and had few restrictions when applied.
  • even a transparent adhesive tape or sheet had such an easy pasting function and had good appearance after pasting.
  • Comparative Example 1 when the height of the convex portion is less than 45 ⁇ m, or when the shortest base distance is less than 7 ⁇ m, the unevenness ratio is 1.00, the fluid is not easily removed and the residual In some cases, swelling may occur due to the influence of the fluid, and in particular, in the case of a transparent adhesive tape or sheet, the residual portion may be noticeable and the appearance may be impaired.
  • the fluid when the height of the convex portion is less than 45 ⁇ m, or the shortest distance on the bottom side is less than 7 ⁇ m, the fluid may not be easily removed, It may not function unless it is immediately pressed to expel the fluid when it comes into contact with the body.
  • the height of the convex portion is in the order of 45 to 250 ⁇ m, 50 ⁇ m to 150 ⁇ m, and 50 ⁇ m to 80 ⁇ m, and the shortest distance on the bottom of the convex portion is 7 to 50 ⁇ m, 10 ⁇ m to In the order of 40 ⁇ m, 15 ⁇ m to 30 ⁇ m, and with respect to the shortest distance at the bottom of the recess, the order of 150 to 5000 ⁇ m, 200 ⁇ m to 3000 ⁇ m, 400 ⁇ m to 2000 ⁇ m, and the unevenness ratio exceeds 1.00 and exceeds 2.00.

Abstract

[Problem] To provide a pressure-sensitive adhesive tape or sheet which has fewer limitations during adhesion by virtue of maintaining, over an arbitrary period of time after being brought into contact with the adherend, the function of facilitating removal of fluids such as gases or liquids that enter into gaps between the adherend and the pressure-sensitive adhesive tape or sheet during adhesion. [Solution] This pressure-sensitive adhesive tape or sheet has a convexo-concave shape provided on the support layer or release separator, the height of the convex portions being 45-250μm, the shortest base length of the convex portions being 7-50μm, the shortest base length of the concave portions being 150-5000μm, and the concavity/convexity ratio being greater than 1.00 and no greater than 2.00. Thereby, said shape is transferred to the pressure-sensitive adhesive layer surface to achieve the pressure-sensitive adhesive tape or sheet having an easy-stick function and comprising grooves for facilitating removal of fluids such as gases or liquids that enter into gaps between the adherend and the pressure-sensitive adhesive tape or sheet during adhesion.

Description

易貼付粘着テープ又はシートEasy adhesive tape or sheet
　本発明は、支持体層又は剥離セパレーターの凹凸形状を粘着層表面に転写させて、貼付する際に被着体との隙間に入った気体、液体等の流体を抜け易くする為の溝を配した易貼付機能をもつ粘着テープ又はシートに関するものである。 The present invention provides a groove for facilitating the escape of a fluid such as a gas or liquid that has entered the gap with the adherend when the support layer or release separator is transferred to the surface of the adhesive layer and applied. The present invention relates to an adhesive tape or sheet having an easy pasting function.
　粘着テープ又はシートは、粘着剤層（世界的にはPressure sensitive adhesives ; 感圧接着剤と呼ばれる）を支持体と積層したものが一般的な構造で、被着体に該テープ又はシートを接触させた後、支持体側から圧力を掛けて粘着剤層を変形させ、支持体と被着体との間に粘着剤層を充填し、隙間を少なくすること（一般的に圧着という）で接着機能を出すものである。 An adhesive tape or sheet generally has a structure in which an adhesive layer (called pressure sensitive adhesives in the world, called pressure sensitive adhesive) is laminated with a support, and the tape or sheet is brought into contact with the adherend. After that, pressure is applied from the support side to deform the pressure-sensitive adhesive layer, and the pressure-sensitive adhesive layer is filled between the support and the adherend to reduce the gap (generally referred to as pressure bonding). Is something
　しかし、圧力の強さ、掛ける時間等の条件により、該粘着剤層が十分に隙間に充填し切らず、被着体との間に残る隙間が多い場合がある。この場合には、接触面積が少なくなることで接着力が不十分であったり、気体や液体等の流体が残った部分で膨らみが生じたり、透明な粘着テープ又はシートにおいては同残留部分が目立ち、外観性を損なう場合がある。 However, the pressure-sensitive adhesive layer may not be sufficiently filled in the gap depending on conditions such as the strength of pressure and the time for which it is applied, and there may be many gaps remaining between the adherend and the adherend. In this case, the adhesive area is insufficient due to the reduced contact area, swelling occurs in the portion where the fluid such as gas or liquid remains, and the residual portion is conspicuous in the transparent adhesive tape or sheet. The appearance may be impaired.
　これを防ぐ為に、予め、貼付する粘着テープ又はシートと被着体の間に水、界面活性剤、アルコール等の液体を介在させ、圧着の際にこれら液体を押し出すように貼付することで、隙間を少なくする工夫がなされる場合もあるが、これでも気体や該液体等の流体が隙間に残ったり、粘着テープ又はシートを貼付する状況によっては該工夫が使えなかったりする場合もある。 In order to prevent this, by interposing a liquid such as water, surfactant, alcohol, etc. between the adhesive tape or sheet to be adhered and the adherend in advance, and pasting so as to extrude these liquids at the time of pressure bonding, In some cases, a device for reducing the gap may be devised, but even in this case, a fluid such as gas or the liquid may remain in the gap, or the device may not be used depending on a situation in which an adhesive tape or sheet is applied.
　更には、粘着剤層の被着面に接触する側の表面から溝を配し、圧着の際に流体を抜け易くして隙間を少なくする工夫がなされた粘着テープ又はシートの提案（特許文献１）もある。 Furthermore, a proposal for an adhesive tape or sheet in which a groove is arranged from the surface of the adhesive layer that contacts the adherend surface to facilitate fluid removal during crimping to reduce the gap (Patent Document 1). There is also.
　しかしながら、当該技術でも流体の抜け易さが不十分であり、何れの工夫も、以上のように実質的には問題を抱えている。 However, even with this technology, the ease of fluid removal is insufficient, and any device has problems substantially as described above.
ＵＳ６１９７３９７Ｂ１US6197397B1
　本発明は、貼付する際に被着体との隙間に入った気体、液体等の流体を抜け易くする機能が、被着体に粘着テープ又はシートを接触させた後、任意の期間持続することで貼付する際の制約を少なくした粘着テープ又はシートを提供することを目的とする。更には、透明な粘着テープ又はシートにおいても易貼付機能をもち、貼付後の外観性の良好な粘着テープ又はシートを提供することを目的とする。 In the present invention, the function of facilitating the removal of a fluid such as a gas or liquid that has entered the gap with the adherend during pasting is maintained for an arbitrary period after the adhesive tape or sheet is brought into contact with the adherend. It aims at providing the adhesive tape or sheet | seat which reduced the restrictions at the time of sticking by. It is another object of the present invention to provide a pressure-sensitive adhesive tape or sheet having an easy pasting function even in a transparent pressure-sensitive adhesive tape or sheet and having a good appearance after pasting.
　本発明者らは、上記課題を解決するために鋭意研究を重ねた結果、支持体層又は剥離セパレーターに粘着テープ又はシートの外側まで連続する凹凸形状を設け、この凹凸形状に関する各パラメータを特定の範囲とし、この凹凸形状が粘着剤層表面に転写されていることにより、貼付する際に被着体との隙間に入った気体、液体等の流体を抜け易くする為の溝を配した易貼付機能をもつ粘着シートを提供できることを見出し、この知見に基づいて本発明を完成するに至った。 As a result of intensive research in order to solve the above problems, the inventors of the present invention have provided a support layer or a release separator with a concavo-convex shape that continues to the outside of the adhesive tape or sheet, and specified each parameter related to this concavo-convex shape Easy pasting with a groove to facilitate removal of fluids such as gas and liquid that have entered the gap with the adherend when pasting because the uneven shape is transferred to the surface of the adhesive layer. The inventors have found that a pressure-sensitive adhesive sheet having a function can be provided, and have completed the present invention based on this finding.
　すなわち、本発明（１）は、少なくとも支持体層と粘着剤層とからなる粘着テープ又はシートにおいて、前記支持体層の片面に凹凸形状が設けられ、該凹凸形状の凸部の高さが４５～２５０μｍであり、該凸部の底辺最短距離が７～５０μｍであり、該凹部の底辺最短距離が１５０～５０００μｍであり、かつ、該凹凸形状の凹凸比率が１．００を超え２．００倍以内であり、前記凹凸形状が前記粘着剤層表面に転写され、該粘着剤層表面の転写凹凸形状が該粘着剤層の外側まで連続していることを特徴とし、貼付する際に被着体との隙間に入った気体、液体等の流体を抜け易くする為の溝を配した易貼付機能をもつ粘着テープ又はシートを提供するものである。
　また、本発明（２）は、少なくとも支持体層と粘着剤層と剥離セパレーターとからなる粘着テープ又はシートにおいて、前記剥離セパレーターの前記粘着剤層と接触する側の面に凹凸形状が設けられ、該凹凸形状の凸部の高さが４５～２５０μｍであり、該凸部の底辺最短距離が７～５０μｍであり、該凹部の底辺最短距離が１５０～５０００μｍであり、かつ、該凹凸形状の凹凸比率が１．００を超え２．００倍以内であり、前記凹凸形状が前記粘着剤層表面に転写され、該粘着剤層表面の転写凹凸形状が該粘着剤層の外側まで連続していることを特徴とし、貼付する際に被着体との隙間に入った気体、液体等の流体を抜け易くする為の溝を配した易貼付機能をもつ粘着テープ又はシートを提供するものである。
　更に、本発明（３）は、前記発明（１）又は（２）の粘着テープ又はシートにおいて、支持体層又は剥離セパレーターに前記凹凸形状を設けることにより、貼付する際に被着体との隙間に入った気体、液体等の流体を抜け易くする為の溝を配した易貼付機能をもつ粘着シートを提供するものである。 That is, in the present invention (1), in an adhesive tape or sheet comprising at least a support layer and an adhesive layer, an uneven shape is provided on one side of the support layer, and the height of the uneven portion is 45. 250 μm, the shortest bottom side distance of the convex part is 7-50 μm, the shortest bottom side distance of the concave part is 150-5000 μm, and the concave-convex ratio of the concave-convex shape exceeds 1.00 and is 2.00 times The uneven shape is transferred to the surface of the pressure-sensitive adhesive layer, and the transferred uneven shape on the surface of the pressure-sensitive adhesive layer is continuous to the outside of the pressure-sensitive adhesive layer. A pressure-sensitive adhesive tape or sheet having an easy pasting function with a groove for facilitating the removal of a fluid such as gas or liquid entering the gap is provided.
In the present invention (2), in the pressure-sensitive adhesive tape or sheet comprising at least the support layer, the pressure-sensitive adhesive layer, and the release separator, the surface of the release separator that is in contact with the pressure-sensitive adhesive layer is provided with an uneven shape, The height of the concavo-convex convex portion is 45 to 250 μm, the shortest bottom side distance of the convex portion is 7 to 50 μm, the shortest bottom side distance of the concave portion is 150 to 5000 μm, and the concavo-convex shape of the concave and convex shape The ratio exceeds 1.00 and is within 2.00 times, the uneven shape is transferred to the surface of the pressure-sensitive adhesive layer, and the transferred uneven shape on the surface of the pressure-sensitive adhesive layer is continuous to the outside of the pressure-sensitive adhesive layer. The present invention provides a pressure-sensitive adhesive tape or sheet having an easy pasting function in which a groove for facilitating the removal of a fluid such as a gas or a liquid that has entered a gap with an adherend is attached.
Furthermore, the present invention (3) is the pressure-sensitive adhesive tape or sheet according to the invention (1) or (2), wherein the unevenness is provided between the adherend and the support layer or release separator by applying the uneven shape. It is an object of the present invention to provide an adhesive sheet having an easy pasting function in which a groove for facilitating the removal of a fluid such as gas or liquid entering is provided.
　本発明は、支持体層又は剥離セパレーターに、凸部の高さが４５～２５０μｍ、かつ、凸部底辺最短距離が７～５０μｍ、かつ、凹部の底辺最短距離が１５０～５０００μｍ、かつ、凹凸比率が１．００を超え２．００倍以内の凹凸形状を設けることにより、該形状を粘着層表面に転写させて、貼付する際に被着体との隙間に入った気体、液体等の流体を抜け易くする為の溝を配した易貼付機能をもつ粘着テープ又はシートを提供する。また、その機能が被着体に粘着テープ又はシートを接触させた後、任意の期間持続することで貼付する際の制約を少なくし、更には、貼付後の外観性の良好な粘着テープ又はシートを提供する。 The present invention provides a support layer or a release separator having a convex portion height of 45 to 250 μm, a convex portion bottom side shortest distance of 7 to 50 μm, and a concave portion bottom shortest distance of 150 to 5000 μm, and a concavo-convex ratio. By providing a concavo-convex shape that exceeds 1.00 and within 2.00 times, the shape is transferred to the surface of the adhesive layer, and a fluid such as gas or liquid that enters the gap between the adherends when applied is applied. An adhesive tape or sheet having an easy pasting function with a groove for facilitating removal is provided. In addition, after the adhesive tape or sheet is brought into contact with the adherend, the function can be maintained for an arbitrary period of time to reduce restrictions when applied, and the adhesive tape or sheet has good appearance after application. I will provide a.
図１は、本発明に係る支持体又は剥離セパレーターに設けられた凹凸形状を示した模式図である。FIG. 1 is a schematic view showing an uneven shape provided on a support or release separator according to the present invention. 図２は、本発明に係る支持体又は剥離セパレーターの上面図である。FIG. 2 is a top view of the support or release separator according to the present invention.
　以下、本発明を詳細に説明する。しかし、本発明は以下の例だけに限定されるものではない。 Hereinafter, the present invention will be described in detail. However, the present invention is not limited to the following examples.
≪本発明に係る粘着テープ又はシートの構成≫
＜全体の構成＞
　本発明の易貼付性粘着テープ又はシートは、少なくとも支持体層と粘着剤層からなる。あるいは、本発明の易貼付性粘着テープ又はシートは、少なくとも支持体層と粘着剤層と剥離セパレーターからなる。 << Configuration of Adhesive Tape or Sheet According to the Present Invention >>
<Overall configuration>
The easily sticky pressure-sensitive adhesive tape or sheet of the present invention comprises at least a support layer and a pressure-sensitive adhesive layer. Or the easily sticky adhesive tape or sheet | seat of this invention consists of a support body layer, an adhesive layer, and a peeling separator at least.
　また、本発明の粘着テープ又はシートは、支持体層と粘着剤層の間に両層の接着性を向上させる為に、両層と接着性の良好なプライマー層を両層の間に配したりすることもできる。 In addition, the pressure-sensitive adhesive tape or sheet of the present invention is provided with a primer layer having good adhesion between both layers in order to improve the adhesion between both layers between the support layer and the pressure-sensitive adhesive layer. You can also.
　ここで、図１は、本発明に係る支持体層又は剥離セパレーターの断面図である。当該図に示すように、本発明の支持体層又は剥離セパレーターには、凹凸形状（図中の、下底が上底よりも大きい台形状の凸部と、隣接する台形同士の間に形成された凹部）が設けられている。尚、図示しないが、本発明に係る粘着テープ又はシートにおいては、当該支持体層又は当該剥離セパレーターに粘着剤層が密着している。また、図２は、本発明に係る支持体層又は剥離セパレーターの上面図である。当該図から分かるように、該凹凸形状の凸部は粘着テープ又はシートの内部から側面（外側）まで連続している。その結果、これと接触する粘着剤層には該凸部が転写され、粘着テープ又はシートの内部から側面（外側）に通じる溝が形成される。支持体層又は剥離セパレーターに設けられた凸部が粘着テープ又はシートの側面（外側）まで連続していない場合には、粘着剤層に転写された溝が粘着テープ又はシートの外に通じない為、圧着の際に被着体との隙間に入った気体、液体等の流体が粘着テープ又はシートの外に逃げることが出来ない。尚、図２に示すように、支持体層又は剥離セパレーター上に形成された凸部は、全領域が全面（即ち４側面）まで連続していることが好適である。例えば、凸部ａ（理解の容易上、黒色線化）は、側面Ｓ１まで直接連続しており、他の側面（Ｓ２～Ｓ４）までは他の凸部を介して間接的に連続している。このように構成することで、貼付した際、粘着テープ又はシートに残された流体を、いずれの側面からも排出できるようになる。 Here, FIG. 1 is a cross-sectional view of a support layer or a release separator according to the present invention. As shown in the figure, the support layer or the release separator of the present invention is formed between an uneven shape (in the figure, a trapezoidal convex portion having a lower bottom larger than the upper bottom and adjacent trapezoids). Recesses) are provided. In addition, although not shown in figure, in the adhesive tape or sheet | seat which concerns on this invention, the adhesive layer is closely_contact | adhered to the said support body layer or the said peeling separator. FIG. 2 is a top view of the support layer or release separator according to the present invention. As can be seen from the figure, the concavo-convex convex portion is continuous from the inside to the side surface (outside) of the adhesive tape or sheet. As a result, the convex portion is transferred to the pressure-sensitive adhesive layer that comes into contact therewith, and a groove is formed from the inside of the pressure-sensitive adhesive tape or sheet to the side surface (outside). When the protrusions provided on the support layer or release separator are not continuous to the side (outside) of the adhesive tape or sheet, the groove transferred to the adhesive layer does not lead to the outside of the adhesive tape or sheet. In addition, a fluid such as gas or liquid that has entered the gap with the adherend during crimping cannot escape out of the adhesive tape or sheet. In addition, as shown in FIG. 2, it is suitable for the convex part formed on the support body layer or the peeling separator that the whole area | region continues to the whole surface (namely, 4 side surfaces). For example, the convex portion a (for easy understanding, black line) is directly continuous to the side surface S1, and the other side surfaces (S2 to S4) are continuously connected indirectly via other convex portions. . By comprising in this way, when sticking, the fluid remaining on the adhesive tape or sheet | seat can be discharged | emitted now from any side surface.
＜各部の構成＞
〔支持体層又は剥離セパレーター〕
（製法・材料）
　本発明の粘着テープ又はシートに用いる支持体層又は剥離セパレーター用のベース基材は、特に限定されないが、例えば、プラスチックフィルム、不織布、紙、布、金属箔等及びその複合体等を使用することができ、押出成型、キャスト成型、圧延等により成型、或いは該成型物をラミネート等により積層して製造することができる。 <Configuration of each part>
[Support layer or release separator]
(Manufacturing method and materials)
The base layer for the support layer or release separator used in the pressure-sensitive adhesive tape or sheet of the present invention is not particularly limited. For example, a plastic film, a nonwoven fabric, paper, a cloth, a metal foil, etc., and a composite thereof are used. It can be manufactured by extrusion molding, cast molding, rolling or the like, or by laminating the molded product by lamination or the like.
　前記ベース基材の原料としては、特に限定されず、例えば、例えばポリエチレン、ポリプロピレン、エチレンプロピレン共重合体、エチレンブテン‐1共重合体、エチレンオクテン共重合体、エチレン酢酸ビニル共重合体、エチレンビニルアルコール共重合体等のポリオレフィン系材料、ポリビニルアルコール系材料、ポリメチルメタクリレート等のアクリル系材料、ポリエチレンテレフタレート、ポリブチレンテレフタレート等のポリエステル系材料、ナイロン６、ナイロン６,６等のポリアミド系材料、構造内に亜鉛、ナトリウム等の金属イオンをもつ各種アイオノマー系材料、ポリスチレン、スチレンイソプレン共重合体、スチレンブタジエン共重合体等のスチレン系材料、ポリウレタン系材料、塩ビ系材料、フッ素系材料、アセテート、セロファン等のセルロース系材料、レーヨン、綿等、アルミ、銅、銀、金、スズ、ステンレス等の金属等、各種材料の１種又は２種以上を組み合わせて用いることができる。 The raw material for the base substrate is not particularly limited, and for example, polyethylene, polypropylene, ethylene propylene copolymer, ethylene butene-1 copolymer, ethylene octene copolymer, ethylene vinyl acetate copolymer, ethylene vinyl, and the like. Polyolefin materials such as alcohol copolymers, polyvinyl alcohol materials, acrylic materials such as polymethyl methacrylate, polyester materials such as polyethylene terephthalate and polybutylene terephthalate, polyamide materials such as nylon 6 and nylon 6,6, structure Various ionomer materials with metal ions such as zinc and sodium, styrene materials such as polystyrene, styrene isoprene copolymer, styrene butadiene copolymer, polyurethane materials, vinyl chloride materials, fluorine materials, acetate , It can be used in combination cellulosic materials cellophane, rayon, such as cotton, aluminum, copper, silver, gold, tin, metal such as stainless steel or the like, one of the various materials or of two or more.
　また、高い外観性が求められる場合には、接触、表面形状が転写される粘着剤層の表面粗さを小さくする為に、表面を平滑にし易いプラスチックフィルム（１層又は２層以上の積層体）を用いることが好ましい。 In addition, when high appearance is required, a plastic film (a laminate of one layer or two or more layers) that is easy to smooth the surface in order to reduce the surface roughness of the adhesive layer to which the contact and surface shape are transferred. ) Is preferably used.
　本発明の粘着テープ又はシートに用いる支持体層又は剥離セパレーターの剥離機能は、特に限定されないが、例えば、「シリコーン系、フッ素系、長鎖アルキル系等の剥離性付与剤をベース基材表面に塗布、皮膜形成すること」、「ベース基材の材料と該剥離性付与剤の混合物をベース基材上に塗布、皮膜成型すること」、「該混合物のみを成型してセパレーターとし、自体に離型機能をもたせること」等により付与することができる。 The release function of the support layer or release separator used in the pressure-sensitive adhesive tape or sheet of the present invention is not particularly limited. For example, “a silicone-based, fluorine-based, long-chain alkyl-based release agent is applied to the base substrate surface. “Coating and forming a film”, “Applying a mixture of the base substrate material and the peelability-imparting agent onto the base substrate and forming a film”, “Making only this mixture into a separator and separating it from itself. It can be given by “providing a mold function”.
　また、本発明の粘着テープ又はシートは、支持体層と粘着剤層の間に両層の接着性を向上させる為に、支持体に対して、コロナ放電処理、プラズマ処理、フレーム処理等のアンカー処理を行なったり、前述のように、両層と接着性の良好なプライマー層を両層の間に配したりすることもできる。 In addition, the pressure-sensitive adhesive tape or sheet of the present invention is an anchor for corona discharge treatment, plasma treatment, flame treatment, etc. to the support in order to improve the adhesion between the support layer and the pressure-sensitive adhesive layer. It is also possible to carry out the treatment or to arrange a primer layer having good adhesion with both layers as described above.
（凹凸部の構造）
　本発明の粘着テープ又はシートは、支持体層又は剥離セパレーターに、凸部の高さが４５～２５０μｍであり、凸部底辺最短距離が７～５０μｍであり、凹部の底辺最短距離が１５０～５０００μｍであり、かつ、凹凸比率が１．００を超え２．００倍以内の凹凸形状を有する。 (Concavity and convexity structure)
In the pressure-sensitive adhesive tape or sheet of the present invention, the height of the convex part is 45 to 250 μm, the shortest distance of the bottom of the convex part is 7 to 50 μm, and the shortest distance of the bottom of the concave part is 150 to 5000 μm. And the concavo-convex ratio is over 1.00 and within 2.00 times.
・凸部の高さ
　凸部の高さとは、凸部の垂直方向の高さであり、図１に示すＢの長さをいう。本発明の粘着テープ又はシートの支持体層又は剥離セパレーターの該凸部の高さは４５～２５０μｍである。好適には、５０μｍ～１５０μｍであり、より好適には５０μｍ～８０μｍである。該凸部の高さが４５μｍを下回る場合には、流体の抜け易さが不十分な場合があったり、特に夏場等、高温環境下においては、被着体に接触させた際に直ぐに圧着して流体を追い出さなければ、機能しなかったりする場合がある。また、該凸部の高さが２５０μｍを上回る場合には、圧着後も粘着剤層の変形による該溝の充填が不十分となって、特に透明な粘着テープ又はシートにおいては、同残留部分が目立ち、外観性を損なう場合がある。 -Height of convex part The height of a convex part is the height of the perpendicular part of a convex part, and means the length of B shown in FIG. The height of the convex portion of the support layer or release separator of the pressure-sensitive adhesive tape or sheet of the present invention is 45 to 250 μm. The thickness is preferably 50 μm to 150 μm, and more preferably 50 μm to 80 μm. When the height of the convex portion is less than 45 μm, the fluid may not be easily removed, and in a high temperature environment such as in summer, the pressure is immediately pressed when contacting the adherend. If the fluid is not expelled, it may not function. Further, when the height of the convex portion exceeds 250 μm, the filling of the groove due to the deformation of the pressure-sensitive adhesive layer becomes insufficient even after the pressure bonding, and particularly in a transparent pressure-sensitive adhesive tape or sheet, the residual portion is It may stand out and impair the appearance.
・凸部の底辺最短距離
　また、凸部の底辺最短距離とは、凸部の底での幅であり、図１に示すＣの長さをいう。本発明の粘着テープ又はシートの支持体層又は剥離セパレーターの該凸部の底辺最短距離は７～５０μｍである。好適には、１０μｍ～４０μｍであり、より好適には１５μｍ～３０μｍである。該凸部の底辺最短距離が７μｍを下回る場合は、流体の抜け易さが不十分な場合があったり、特に夏場等、高温環境下においては、被着体に接触させた際に直ぐに圧着して流体を追い出さなければ、機能しなかったりする場合がある。また、該凸部の底辺最短距離が５０μｍを上回る場合には、圧着後も粘着剤層の変形による該溝の充填が不十分となって、特に透明な粘着テープ又はシートにおいては、同残留部分が目立ち、外観性を損なう場合がある。 The shortest bottom side distance of the convex portion The shortest bottom side distance of the convex portion is the width at the bottom of the convex portion, and is the length of C shown in FIG. The shortest distance between the bottoms of the convex portions of the support layer or release separator of the pressure-sensitive adhesive tape or sheet of the present invention is 7 to 50 μm. The thickness is preferably 10 μm to 40 μm, more preferably 15 μm to 30 μm. When the shortest bottom distance of the convex portion is less than 7 μm, the fluid may not be easily removed, and in a high temperature environment such as in summer, the pressure is immediately applied when contacting the adherend. If the fluid is not expelled, it may not function. Further, when the shortest bottom side distance of the convex part exceeds 50 μm, the filling of the groove due to the deformation of the pressure-sensitive adhesive layer becomes insufficient even after the pressure bonding, particularly in the case of a transparent pressure-sensitive adhesive tape or sheet. May stand out and the appearance may be impaired.
・凹部の底辺最短距離
　また、凹部の底辺最短距離とは、凹部の底での幅であり、図１に示すＦの長さをいう。本発明の粘着テープ又はシートの支持体層又は剥離セパレーターの該凹部の底辺最短距離は１５０～５０００μｍである。好適には、２００μｍ～３０００μｍであり、より好適には４００μｍ～２０００μｍである。該凹部の底辺最短距離が１５０μｍを下回る場合は、支持体層の背面、又は剥離セパレーターの離型機能面と粘着剤層の接触面積が多くなり、粘着剤層を引き剥がす際の力（剥離力）が高くなり、剥離作業性が悪くなることがある。一方、該凹部の底辺最短距離が５０００μｍを上回る場合は、溝が少なくなって、流体の抜け易さが不十分となり、残留した流体の影響で膨らみが生じたり、特に透明な粘着テープ又はシートにおいては同残留部分が目立ち、外観性を損なったりする場合がある。 The shortest bottom side distance of the concave portion The shortest bottom side distance of the concave portion is the width at the bottom of the concave portion, which is the length of F shown in FIG. The shortest distance of the bottom of the concave portion of the support layer or release separator of the pressure-sensitive adhesive tape or sheet of the present invention is 150 to 5000 μm. The thickness is preferably 200 μm to 3000 μm, more preferably 400 μm to 2000 μm. When the shortest bottom side distance of the recess is less than 150 μm, the contact area between the back surface of the support layer or the release functional surface of the release separator and the pressure-sensitive adhesive layer increases, and the force (peeling force) when peeling off the pressure-sensitive adhesive layer ) Increases, and the peeling workability may deteriorate. On the other hand, if the bottom shortest distance of the recess is greater than 5000 μm, the groove is reduced, the ease of fluid removal is insufficient, and swelling occurs due to the residual fluid, especially in transparent adhesive tapes or sheets In the case of the residual portion, the appearance may be impaired.
・凹凸比率
　更に、凹凸比率とは、並行隣接凸部間の最短繰り返し直線距離に対する並行隣接凸部間の最短繰り返し凹凸距離の比率のことであり、図１に示す各長さを、（Ａ＋Ｄ＋Ｆ＋Ｄ）／Ｇで計算した数値である。本発明の粘着テープ又はシートの支持体層又は剥離セパレーターの凹凸比率は１．００を超え２．００倍以内である。好適には、１．１０倍～１．５０倍であり、より好適には１．１５倍～１．４５倍である。該凹凸比率が１を超えない場合には、溝が形成できなくなって、流体の抜け易さが不十分となり、残留した流体の影響で膨らみが生じたり、特に透明な粘着テープ又はシートにおいては同残留部分が目立ち、外観性を損なったりする場合がある。該凹凸比率が２．００倍を上回る場合には、支持体層又は剥離セパレーターと粘着剤層の接触面積が多くなり、支持体層背面又は剥離セパレーターの剥離機能面に対する剥離力が高くなり、剥離作業性が悪くなることがある。 ・ Roughness ratio Furthermore, the unevenness ratio is the ratio of the shortest repeated unevenness distance between parallel adjacent convex parts to the shortest repeated straight line distance between parallel adjacent convex parts, and each length shown in FIG. 1 is represented by (A + D + F + D) It is a numerical value calculated by / G. The uneven | corrugated ratio of the support body layer or peeling separator of the adhesive tape or sheet | seat of this invention exceeds 1.00, and is less than 2.00 times. Preferably, it is 1.10 times to 1.50 times, and more preferably 1.15 times to 1.45 times. If the concavo-convex ratio does not exceed 1, the grooves cannot be formed, the fluid is not easily removed, and the swell is generated due to the influence of the remaining fluid, especially in the case of a transparent adhesive tape or sheet. The remaining part may be noticeable and the appearance may be impaired. When the concavo-convex ratio exceeds 2.00 times, the contact area between the support layer or the release separator and the pressure-sensitive adhesive layer is increased, and the release force on the back surface of the support layer or the release functional surface of the release separator is increased. Workability may deteriorate.
〔粘着剤層〕
　本発明の粘着テープ又はシートの粘着剤層に用いる粘着剤としては、特に限定されず、例えば、ゴム系、アクリル系、ウレタン系、シリコーン系等の各種粘着剤を使用することができる。 (Adhesive layer)
It does not specifically limit as an adhesive used for the adhesive layer of the adhesive tape or sheet | seat of this invention, For example, various adhesives, such as a rubber type, an acrylic type, a urethane type, a silicone type, can be used.
　粘着剤層の形成方法としては、「有機溶媒に溶解した溶剤系粘着液、水に分散させたエマルジョン系粘着液等を低粘度状態で支持体層上に塗布、乾燥させることで粘度上昇させる」方法、「溶媒を含まない粘着剤を加熱により粘度を下げた状態で支持体層上に塗布、冷却により粘度を上昇させる」方法、「２液混合直後の粘度が低い状態で支持体層上に塗布、反応により粘度上昇させる」方法等の他、「支持体層と粘着剤層の材料を加熱により粘度を下げた状態で多層共押出成型する」方法が挙げられるが、これらに限定されず、種々の方法を用いることができる。 As a method for forming the pressure-sensitive adhesive layer, “a solvent-based pressure-sensitive solution dissolved in an organic solvent, an emulsion-based pressure-sensitive liquid dispersed in water, etc. is applied onto a support layer in a low-viscosity state and dried to increase the viscosity.” Method, “Applying a solvent-free pressure-sensitive adhesive on the support layer in a state where the viscosity is lowered by heating, and increasing the viscosity by cooling”, “Method on the support layer in a state where the viscosity immediately after mixing the two liquids is low In addition to the method of `` increasing the viscosity by application, reaction '' and the like, the method of `` multi-layer coextrusion molding in a state in which the material of the support layer and the pressure-sensitive adhesive layer is lowered by heating '' is exemplified, but not limited thereto, Various methods can be used.
〔その他〕
　その他、本発明の粘着テープ又はシートは、支持体、粘着剤、剥離セパレーターの各層に対し、目的を損なわない範囲で必要に応じて、各種添加剤を追加で配合することができる。特に限定はされないが、例えば、ヒンダードアミン系、ヒンダードフェノール系、ベンゾトリアゾール系、ベンゾフェノン系、ベンゾエート系、トリアジン系、ラクトン系、リン系等の紫外線吸収剤や紫外線安定剤、ヒンダート系、セミヒンダート系、ホスファイト系、ホスホナイト系、チオエーテル系等の酸化防止剤、金属石鹸系、有機スズ系、鉛系等の加工安定剤、界面活性剤系、カチオン系、非イオン系等の帯電防止剤、合成シリカ系、シリカ系等のアンチブロッキング剤、ステアリン酸、ステアリン酸アミド、ステアリン酸カルシウム、ステアリン酸バリウム、ステアリン酸亜鉛等の滑剤等の添加剤を加えても良い。シリコーン系、フッ素系、長鎖アルキル系等の剥離性付与剤を適宜添加することができる。 [Others]
In addition, in the pressure-sensitive adhesive tape or sheet of the present invention, various additives can be added to the layers of the support, the pressure-sensitive adhesive, and the release separator as needed as long as the purpose is not impaired. Although not particularly limited, for example, hindered amine-based, hindered phenol-based, benzotriazole-based, benzophenone-based, benzoate-based, triazine-based, lactone-based, phosphorus-based UV absorbers and UV stabilizers, hindered, semi-hindered, Antioxidants such as phosphites, phosphonites, and thioethers, processing stabilizers such as metal soaps, organotins, and leads, surfactants, cationic and nonionic antistatics, synthetic silica Additives such as lubricants such as antiblocking agents such as those based on silica and silica, stearic acid, stearamide, calcium stearate, barium stearate and zinc stearate may be added. Silicone-based, fluorine-based, and long-chain alkyl-based release agents can be appropriately added.
≪本発明に係る粘着テープ又はシートの製造方法≫
〈凹凸形状を有する支持体層を用いた場合〉
　凹凸形状が粘着剤層面に配された本発明の粘着テープ又はシートは、予め、直巻きの際に粘着剤層と接する支持体層の背面に任意の凹凸形状を配し、該凹凸形状を粘着剤層面に転写させることによって得られる。支持体層の背面に凹凸形状を形成するには、当業者に公知のさまざまな方法を用いることができる。 ≪Method for producing adhesive tape or sheet according to the present invention≫
<When using a support layer having an uneven shape>
The pressure-sensitive adhesive tape or sheet of the present invention in which the concavo-convex shape is arranged on the surface of the pressure-sensitive adhesive layer is previously provided with an arbitrary concavo-convex shape on the back surface of the support layer in contact with the pressure-sensitive adhesive layer during direct winding, and the concavo-convex shape is adhered. It is obtained by transferring to the surface of the agent layer. Various methods known to those skilled in the art can be used to form an uneven shape on the back surface of the support layer.
〈凹凸形状を有する剥離セパレーターを用いた場合〉
　また、凹凸形状が粘着剤層面に配された本発明の粘着テープ又はシートは、予め、粘着剤層面と接する剥離セパレーターの剥離機能表面に任意の凹凸形状を配し、該形状を粘着剤層面に転写させることによって得られる。剥離セパレーターの表面に凹凸形状を成型するには当業者に公知の種々の方法を用いることができる。 <When using a release separator with an uneven shape>
In addition, the pressure-sensitive adhesive tape or sheet of the present invention in which the concavo-convex shape is arranged on the pressure-sensitive adhesive layer surface is provided with an arbitrary concavo-convex shape in advance on the release functional surface of the release separator in contact with the pressure-sensitive adhesive layer surface, and the shape is applied to the pressure-sensitive adhesive layer surface. It is obtained by transferring. Various methods known to those skilled in the art can be used to form a concavo-convex shape on the surface of the release separator.
　以下、本発明の実施例を挙げて具体的に説明するが、本発明はこれらの実施例に限定されるものではない。 Hereinafter, examples of the present invention will be described in detail, but the present invention is not limited to these examples.
＜構成材料の内容・作製方法＞
　使用した構成材料の内容、作製方法は、次の通りである。
（１）支持体
B-1 :　PP（日本ポリプロ製ノバテックEA9）をTダイで押し出し成型し、150μｍのシートを作製、更に両面にコロナ処理し、処理後の片面にシリコーン系剥離性付与剤（信越化学工業製X-62-5040）を塗布、加熱乾燥後、UV照射で硬化させて皮膜形成
B-2 :　PP（日本ポリプロ製ノバテックEA9）をTダイで押し出し成型し、150μｍのシートを作製、更に片面にコロナ処理
B-3 :　PP（日本ポリプロ製ノバテックEA9）をTダイで押し出し成型し、400μｍのシートを作製、更に片面にコロナ処理
（２）粘着剤
A-1 :　モノマー組成ブチルアクリレート/アクリル酸=95/5で共重合したアクリル系粘着剤 
A-2 :　天然ゴム/脂環族飽和炭化水素樹脂（荒川化学製アルコンP-100）/酸化防止剤（BASF製イルガノックス1010）=65/34/1
（３）剥離セパレーター
S-1 :　B-1をそのまま使用
S-2 :　B-3のコロナ処理面にシリコーン系剥離性付与剤（信越化学工業製X-62-5040）を塗布、加熱乾燥後、UV照射で硬化させて皮膜形成 <Contents and production methods of constituent materials>
The contents of the constituent materials used and the production method are as follows.
(1) Support
B-1: PP (Novatech EA9 manufactured by Nippon Polypro) is extruded with a T-die to produce a 150μm sheet, further corona-treated on both sides, and a silicone-based release agent (Shin-Etsu Chemical Co., Ltd. X on one side after treatment) -62-5040) is applied, heat-dried, and cured by UV irradiation to form a film
B-2: PP (Novatec EA9 made by Nippon Polypro) was extruded with a T-die to produce a 150μm sheet, and one side was corona-treated.
B-3: PP (Novatech EA9 manufactured by Nippon Polypro) is extruded with a T-die to produce a 400μm sheet, and one side is corona-treated (2) Adhesive
A-1: Acrylic adhesive copolymerized with monomer composition butyl acrylate / acrylic acid = 95/5
A-2: Natural rubber / alicyclic saturated hydrocarbon resin (Arcon P-100 made by Arakawa Chemical) / Antioxidant (BASF Irganox 1010) = 65/34/1
(3) Release separator
S-1: Use B-1 as it is
S-2: A silicone release agent (X-62-5040 manufactured by Shin-Etsu Chemical Co., Ltd.) is applied to the corona-treated surface of B-3, heat-dried, and cured by UV irradiation to form a film
（４）支持体層又は剥離セパレーターへの凹凸形状成型
　当業者に公知な方法を用いて、支持体の背面又は剥離セパレーターの剥離機能面に凹凸形状を成型 (4) Concavity and convexity molding to support layer or release separator Using method known to those skilled in the art, concavity and convexity shape is formed on back side of support or release function surface of release separator
（５）粘着テープ又はシートの作製方法
P-1 ：　支持体の凹凸形状を設けていない側のコロナ処理面にトルエン溶媒に希釈した粘着液を塗布、乾燥し、押さえロールで圧着ながら巻き取って支持体背面の凹凸形状を粘着剤層に押さえつけ、直巻きのロール状粘着テープとし、更に直巻きロールからテープを巻き戻すことで、支持体背面の凹凸形状剥離機能面から粘着剤層を剥がし、該粘着剤表面に溝が転写された粘着テープを作製
P-2 ：　凹凸形状を設けていない支持体のコロナ処理面にトルエン溶媒に希釈した粘着液を塗布、乾燥し、押さえロールで圧着しながら凹凸形状を設けた剥離セパレーターとラミネートして該剥離セパレーターの凹凸形状を粘着剤層に押さえつけ、剥離セパレーター付の粘着シートとし、更に剥離セパレーターの凹凸形状剥離機能面から粘着剤層を剥がし、該粘着剤表面に溝が転写された粘着シートを作製
P-3 ：　支持体背面の凹凸形状を設けた剥離機能面にトルエン溶媒に希釈した粘着液を塗布、乾燥し、押さえロールで圧着ながら巻き取って支持体の凹凸形状を設けていない側のコロナ処理面と粘着剤層を密着させ、直巻きのロール状粘着テープとし、更に直巻きロールからテープを巻き戻すことで、支持体背面の凹凸形状剥離機能面から粘着剤層を剥がし、該粘着剤表面に溝が転写された粘着テープを作製
P-4 ：　剥離セパレーターの凹凸形状を設けた剥離機能面にトルエン溶媒に希釈した粘着液を塗布、乾燥し、押さえロールで圧着しながら凹凸形状を設けていない支持体とラミネートして該支持体のコロナ処理面と粘着剤層を密着させ、剥離セパレーター付の粘着シートとし、更に剥離セパレーターの凹凸形状剥離機能面から粘着剤層を剥がし、該粘着剤表面に溝が転写された粘着シートを作製 (5) Production method of adhesive tape or sheet
P-1 ： Apply the adhesive solution diluted in toluene solvent to the corona-treated surface of the support that is not provided with the uneven shape, dry it, and wind it up while pressing it with a pressing roll to form the uneven shape on the back of the support. The pressure-sensitive adhesive layer was peeled off from the concave-convex shape peeling functional surface on the back of the support, and the groove was transferred to the pressure-sensitive adhesive surface. Make adhesive tape
P-2: An adhesive solution diluted in a toluene solvent is applied to the corona-treated surface of a support that is not provided with an uneven shape, dried, and laminated with a release separator provided with an uneven shape while being pressure-bonded with a pressing roll. The pressure-sensitive adhesive layer is pressed onto the pressure-sensitive adhesive layer to form a pressure-sensitive adhesive sheet with a release separator, and then the pressure-sensitive adhesive layer is peeled off from the surface of the pressure-sensitive adhesive surface of the release separator to produce a pressure-sensitive adhesive sheet with grooves transferred to the pressure-sensitive adhesive surface.
P-3 ： Corona on the side where the uneven surface of the support is not provided by applying the adhesive liquid diluted in toluene solvent to the release function surface provided with the uneven surface on the back of the support, drying it, and winding it while pressing with a pressing roll The pressure-sensitive adhesive layer is peeled off from the concavo-convex shape peeling functional surface on the back of the support by bringing the treated surface and the pressure-sensitive adhesive layer into close contact to form a directly wound roll-shaped pressure-sensitive adhesive tape, and then rewinding the tape from the direct-winding roll. Fabricate adhesive tape with grooves transferred on the surface
P-4 ： Applying adhesive liquid diluted with toluene solvent to the release function surface of the release separator provided with an uneven shape, drying, laminating with a support not provided with an uneven shape while pressing with a pressing roll Adhering the corona-treated surface and the pressure-sensitive adhesive layer to obtain a pressure-sensitive adhesive sheet with a release separator, and further peeling off the pressure-sensitive adhesive layer from the concavo-convex shape release function surface of the release separator to produce a pressure-sensitive adhesive sheet with grooves transferred to the pressure-sensitive adhesive surface
＜実施例及び比較例＞
　表２に示す構成材料、作製方法で実施例及び比較例を作製した。表１に、実施例及び比較例の支持体又は剥離セパレーターの凹凸形状の構成を示す。 <Examples and Comparative Examples>
Examples and comparative examples were produced using the constituent materials and production methods shown in Table 2. In Table 1, the structure of the uneven | corrugated shape of the support body or peeling separator of an Example and a comparative example is shown.
〔評価方法〕
　実施例及び比較例の評価方法は、次の通りである。
（１）剥離セパレーター又は支持体背面からの剥離性
　縦50mm、横25mmの実施例、比較例の粘着テープ又はシートについて、剥離セパレーター又は支持体背面と粘着シートの縦方向の端から10mmを剥がしてチャックし、残った40 mmについて、300mm/分の速度で、T型剥離力を測定した。該剥離力が5N/25mm以下の場合は「良好」、5N/25mmを超える場合は「悪い」と表２に記載した。 〔Evaluation methods〕
The evaluation method of an Example and a comparative example is as follows.
(1) Peelability from the back of the release separator or support For the adhesive tapes or sheets of 50 mm in length and 25 mm in width and comparative examples, peel 10 mm from the release separator or back of the support and the longitudinal edge of the adhesive sheet. The remaining 40 mm was chucked, and the T-type peeling force was measured at a speed of 300 mm / min. Table 2 shows “good” when the peel force is 5 N / 25 mm or less, and “bad” when it exceeds 5 N / 25 mm.
（２）外観性
　ブライトアニールしたステンレス３０４（以下BASUSという。）のパネルに対し、一辺の長さが50mmである正方形の実施例、比較例の粘着テープ又はシートを貼付、続いて、重量が２ｋｇのローラーで、300mm/分の速度1往復して、圧着した。圧着から８時間後に、BASUSパネルとの間に残留した気泡による膨らみや、粘着剤層表面に設けた溝が見えるかどうかについて、試験パネルから500mm離れた距離より目視で確認した。尚、本評価は矯正視力1.2の試験者により実施した。見えない場合は「良好」、見える場合は「悪い」と表２に記載した。 (2) Appearance To a panel of bright annealed stainless steel 304 (hereinafter referred to as BASUS), a square example having a side length of 50 mm and an adhesive tape or sheet of a comparative example were applied, followed by a weight of 2 kg. The pressure was reciprocated at a speed of 300 mm / min. Eight hours after the pressure bonding, whether or not the swelling caused by bubbles remaining between the BASUS panel and the groove provided on the surface of the pressure-sensitive adhesive layer was visible was visually confirmed from a distance of 500 mm from the test panel. This evaluation was conducted by a tester with a corrected visual acuity of 1.2. Table 2 shows “good” when not visible and “bad” when visible.
（３）短期流体除去性
　外観性評価で用いたのと同じBASUSパネルの表面に直径10mm、深さ1mmの球欠（Spherical cap）状に近い窪みを設けた。次に一辺の長さが50mmである正方形の実施例、比較例の粘着テープ又はシートを、窪みが中央に位置し、かつ窪みと該BASUSパネルの間以外は気泡による膨らみ、気泡跡が目視で見えないように貼付した。続いて、重量が２ｋｇのローラーで、300mm/分の速度1往復して、圧着した。圧着から5分後に、指で粘着テープ又はシートを押し付けて窪みに追従させ、更に指を押し付けたまま、粘着テープ又はシートの端まで滑らし、該粘着テープ又はシートと窪みの間に残留している気体を追い出した。該気体を見えないレベルまで追い出せたか、気泡による膨らみや、残留が見えるかどうかについて、試験パネルから500mm離れた距離より目視で確認した。尚、本評価は矯正視力１．２の試験者により実施した。見えない場合は「良好」、見える場合は「悪い」と表２に記載した。 (3) Short-term fluid removability The surface of the same BASUS panel used in the appearance evaluation was provided with a hollow with a diameter of 10 mm and a depth of 1 mm, similar to a spherical cap. Next, a square example having a side length of 50 mm, the adhesive tape or sheet of the comparative example, the dent is located at the center, and the bulge is caused by bubbles except between the dent and the BASUS panel, and the bubble marks are visually observed. It was stuck so that it could not be seen. Subsequently, the roller was reciprocated once at a speed of 300 mm / min with a roller having a weight of 2 kg, and was subjected to pressure bonding. 5 minutes after crimping, press the pressure-sensitive adhesive tape or sheet with your finger to follow the dent, then slide it to the edge of the pressure-sensitive adhesive tape or sheet with your finger still pressed, and remain between the pressure-sensitive adhesive tape or sheet and the dent. Expelled the gas. Whether the gas was expelled to a level where it could not be seen or whether swelling or bubbles due to bubbles could be seen was visually confirmed from a distance of 500 mm from the test panel. This evaluation was conducted by a tester with a corrected visual acuity of 1.2. Table 2 shows “good” when not visible and “bad” when visible.
（４）経時後流体除去性
　短期流体除去性と同じ方法で、窪みを設けたBASUSパネルに実施例、比較例の粘着テープ又はシートを貼付、40℃下で放置した。圧着から８時間後に、短期流体除去性と同じ方法で該粘着テープ又はシートと窪みの間に残留している気体を追い出し、該気体を見えないレベルまで追い出せたか、気泡による膨らみや、残留が見えるかどうかについて、目視で確認した。見えない場合は「良好」、見える場合は「悪い」と表２に記載した。 (4) Fluid removability after aging By the same method as short-term fluid removability, the adhesive tapes or sheets of Examples and Comparative Examples were attached to BASUS panels provided with depressions and left at 40 ° C. Eight hours after crimping, the gas remaining between the adhesive tape or sheet and the depression is driven out in the same manner as short-term fluid removability, and the gas can be driven out to an invisible level, or bulge and residual due to bubbles can be seen. Whether or not was confirmed visually. Table 2 shows “good” when not visible and “bad” when visible.
〔評価結果〕
　実施例・比較例の構成と評価結果を表１、表２に示す。
〔Evaluation results〕
Tables 1 and 2 show configurations and evaluation results of Examples and Comparative Examples.
Figure JPOXMLDOC01-appb-T000002
Figure JPOXMLDOC01-appb-T000002
　表２の実施例１～５の結果から明らかなように、本発明は、貼付する際に被着体との隙間に入った気体、液体等の流体を抜け易く、該機能が被着体に粘着テープ又はシートを接触させた後、任意の期間持続しており、貼付する際の制約が少ない良好な粘着テープ又はシートであった。また、透明な粘着テープ又はシートにおいても該易貼付機能をもち、かつ貼付後の外観性の良好な粘着テープ又はシートであった。 As is apparent from the results of Examples 1 to 5 in Table 2, the present invention easily removes fluids such as gas and liquid that have entered the gap with the adherend when affixing, and this function is applied to the adherend. After contacting the pressure-sensitive adhesive tape or sheet, it was a good pressure-sensitive adhesive tape or sheet that lasted for an arbitrary period and had few restrictions when applied. In addition, even a transparent adhesive tape or sheet had such an easy pasting function and had good appearance after pasting.
　他方、比較例１のように、該凸部の高さが45μｍを下回ったり、底辺最短距離が７μｍを下回る場合、凹凸比率が1.00の場合には、流体の抜け易さが不十分で、残留した流体の影響で膨らみが生じたり、特に透明な粘着テープ又はシートにおいては同残留部分が目立ち、外観性を損なったりする場合がある。 On the other hand, as in Comparative Example 1, when the height of the convex portion is less than 45 μm, or when the shortest base distance is less than 7 μm, the unevenness ratio is 1.00, the fluid is not easily removed and the residual In some cases, swelling may occur due to the influence of the fluid, and in particular, in the case of a transparent adhesive tape or sheet, the residual portion may be noticeable and the appearance may be impaired.
　比較例２、比較例３のように、該凸部の高さが45μｍを下回ったり、底辺最短距離が７μｍを下回る場合には、流体の抜け易さが不十分な場合があったり、被着体に接触させた際に直ぐに圧着して流体を追い出さなければ、機能しなかったりする場合がある。 As in Comparative Example 2 and Comparative Example 3, when the height of the convex portion is less than 45 μm, or the shortest distance on the bottom side is less than 7 μm, the fluid may not be easily removed, It may not function unless it is immediately pressed to expel the fluid when it comes into contact with the body.
　比較例４、比較例５のように、該凹部の底辺最短距離が150μmを下回ったり、該凹凸比率が2.00倍を上回る場合には、支持体層又は剥離セパレーターと粘着剤層の接触面積が多くなり、支持体層背面又は剥離セパレーターの剥離機能面に対する剥離力が高くなり、剥離作業性が悪くなることがある。 As in Comparative Example 4 and Comparative Example 5, when the bottom shortest distance of the recess is less than 150 μm or the unevenness ratio exceeds 2.00 times, the contact area between the support layer or the release separator and the adhesive layer is large. Thus, the peeling force on the back surface of the support layer or the peeling functional surface of the peeling separator is increased, and the peeling workability may be deteriorated.
　比較例６、比較例７のように、該凸部の高さが250μｍを上回ったり、底辺最短距離が50μｍを上回る場合には、圧着後も粘着剤層の変形による該溝の充填が不十分となって、特に透明な粘着テープ又はシートにおいては、同残留部分が目立ち、外観性を損なう場合がある。 When the height of the convex part exceeds 250 μm or the shortest bottom side exceeds 50 μm as in Comparative Example 6 and Comparative Example 7, the filling of the groove due to the deformation of the pressure-sensitive adhesive layer is insufficient even after pressure bonding In particular, in the case of a transparent adhesive tape or sheet, the residual portion is noticeable and the appearance may be impaired.
　尚、表には掲載されていないが、凸部の高さに関しては、４５～２５０μｍ、５０μｍ～１５０μｍ、５０μｍ～８０μｍの順で、また、凸部底辺最短距離に関しては、７～５０μｍ、１０μｍ～４０μｍ、１５μｍ～３０μｍの順で、また、凹部の底辺最短距離に関しては、１５０～５０００μｍ、２００μｍ～３０００μｍ、４００μｍ～２０００μｍの順で、更には、凹凸比率に関しては、１．００を超え２．００倍以内、１．１０倍～１．５０倍、１．１５倍～１．４５倍の順で、本発明の効果（例えば、貼付する際に被着体との隙間に入った気体、液体等の流体を抜け易さ）が段階的に顕著に向上した。 Although not listed in the table, the height of the convex portion is in the order of 45 to 250 μm, 50 μm to 150 μm, and 50 μm to 80 μm, and the shortest distance on the bottom of the convex portion is 7 to 50 μm, 10 μm to In the order of 40 μm, 15 μm to 30 μm, and with respect to the shortest distance at the bottom of the recess, the order of 150 to 5000 μm, 200 μm to 3000 μm, 400 μm to 2000 μm, and the unevenness ratio exceeds 1.00 and exceeds 2.00. Within the order of 1.times., 1.10 times to 1.50 times, 1.15 times to 1.45 times, the effects of the present invention (for example, gas, liquid, etc. that have entered the gap with the adherend when affixed) The ease of fluid removal) was improved stepwise.
　以上、本発明の好適な実施の形態について説明したが、本発明は上述した形態に限定されない。すなわち、特許請求の範囲に記載された発明の範囲内で当業者が想到し得る他の形態又は各種の変更例についても本発明の技術的範囲に属するものと理解される。
  The preferred embodiment of the present invention has been described above, but the present invention is not limited to the above-described embodiment. That is, it is understood that other forms or various modifications that can be conceived by those skilled in the art within the scope of the invention described in the claims belong to the technical scope of the present invention.

Claims (2)

  1. 　少なくとも支持体層と粘着剤層とからなる粘着テープ又はシートにおいて、
    　前記支持体層の片面に凹凸形状が設けられ、該凹凸形状の凸部の高さが４５～２５０μｍであり、該凸部の底辺最短距離が７～５０μｍであり、該凹部の底辺最短距離が１５０～５０００μｍであり、かつ、該凹凸形状の凹凸比率が１．００を超え２．００倍以内であり、
    　前記凹凸形状が前記粘着剤層表面に転写され、該粘着剤層表面の転写凹凸形状が該粘着剤層の外側まで連続していることを特徴とする粘着テープ又はシート。     In an adhesive tape or sheet comprising at least a support layer and an adhesive layer,
    An uneven shape is provided on one side of the support layer, the height of the convex portion of the concave and convex shape is 45 to 250 μm, the shortest bottom side distance of the convex portion is 7 to 50 μm, and the shortest bottom side distance of the concave portion is 150 to 5000 μm, and the concavo-convex ratio of the concavo-convex shape exceeds 1.00 and is within 2.00 times,
    The pressure-sensitive adhesive tape or sheet, wherein the uneven shape is transferred to the surface of the pressure-sensitive adhesive layer, and the transferred uneven shape on the surface of the pressure-sensitive adhesive layer continues to the outside of the pressure-sensitive adhesive layer.
  2. 　少なくとも支持体層と粘着剤層と剥離セパレーターとからなる粘着テープ又はシートにおいて、
    　前記剥離セパレーターの前記粘着剤層と接触する側の面に凹凸形状が設けられ、該凹凸形状の凸部の高さが４５～２５０μｍであり、該凸部の底辺最短距離が７～５０μｍであり、該凹部の底辺最短距離が１５０～５０００μｍであり、かつ、該凹凸形状の比率が１．００を超え２．００倍以内であり、
    　前記凹凸形状が前記粘着剤層表面に転写され、該粘着剤層表面の転写凹凸形状が該粘着剤層の外側まで連続していることを特徴とする粘着テープ又はシート。     In an adhesive tape or sheet consisting of at least a support layer, an adhesive layer and a release separator,
    The surface of the release separator that is in contact with the pressure-sensitive adhesive layer is provided with a concavo-convex shape, the height of the convex portion of the concavo-convex shape is 45 to 250 μm, and the shortest bottom side distance of the convex portion is 7 to 50 μm. The bottom shortest distance of the recess is 150 to 5000 μm, and the ratio of the concavo-convex shape exceeds 1.00 and is within 2.00 times,
    The pressure-sensitive adhesive tape or sheet, wherein the uneven shape is transferred to the surface of the pressure-sensitive adhesive layer, and the transferred uneven shape on the surface of the pressure-sensitive adhesive layer continues to the outside of the pressure-sensitive adhesive layer.
PCT/JP2015/076357 2014-10-17 2015-09-16 Easy sticking pressure-sensitive adhesive tape or sheet WO2016059932A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2016554024A JPWO2016059932A1 (en) 2014-10-17 2015-09-16 Easy adhesive tape or sheet

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2014213065 2014-10-17
JP2014-213065 2014-10-17

Publications (1)

Publication Number Publication Date
WO2016059932A1 true WO2016059932A1 (en) 2016-04-21

Family

ID=55746480

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2015/076357 WO2016059932A1 (en) 2014-10-17 2015-09-16 Easy sticking pressure-sensitive adhesive tape or sheet

Country Status (2)

Country Link
JP (1) JPWO2016059932A1 (en)
WO (1) WO2016059932A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020049728A1 (en) * 2018-09-07 2020-03-12 リンテック株式会社 Release liner, method for manufacturing release liner, adhesive sheet, and method for manufacturing adhesive sheet
JPWO2019017247A1 (en) * 2017-07-20 2020-04-23 三井化学株式会社 Adhesive member and method for manufacturing adhesive member

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004075845A (en) * 2002-08-19 2004-03-11 Dainippon Printing Co Ltd Adhesive sheet
JP2006130672A (en) * 2004-11-02 2006-05-25 Nitto Denko Corp Surface protective film or sheet
JP2008150431A (en) * 2006-12-14 2008-07-03 Lintec Corp Adhesive sheet and method for producing adhesive sheet
JP2009001667A (en) * 2007-06-21 2009-01-08 Nichiban Co Ltd Release sheet for forming recessed part in adhesive layer surface of adhesive sheet
JP2010058395A (en) * 2008-09-04 2010-03-18 Oji Tokushushi Kk Release paper and method for manufacturing the same, and pressure sensitive adhesive sheet using release paper and pressure sensitive adhesive sheet roll object

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004075845A (en) * 2002-08-19 2004-03-11 Dainippon Printing Co Ltd Adhesive sheet
JP2006130672A (en) * 2004-11-02 2006-05-25 Nitto Denko Corp Surface protective film or sheet
JP2008150431A (en) * 2006-12-14 2008-07-03 Lintec Corp Adhesive sheet and method for producing adhesive sheet
JP2009001667A (en) * 2007-06-21 2009-01-08 Nichiban Co Ltd Release sheet for forming recessed part in adhesive layer surface of adhesive sheet
JP2010058395A (en) * 2008-09-04 2010-03-18 Oji Tokushushi Kk Release paper and method for manufacturing the same, and pressure sensitive adhesive sheet using release paper and pressure sensitive adhesive sheet roll object

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2019017247A1 (en) * 2017-07-20 2020-04-23 三井化学株式会社 Adhesive member and method for manufacturing adhesive member
JP7060191B2 (en) 2017-07-20 2022-04-26 三井化学株式会社 Adhesive member and manufacturing method of adhesive member
WO2020049728A1 (en) * 2018-09-07 2020-03-12 リンテック株式会社 Release liner, method for manufacturing release liner, adhesive sheet, and method for manufacturing adhesive sheet
WO2020050332A1 (en) * 2018-09-07 2020-03-12 リンテック株式会社 Release liner, method for producing release liner, pressure-sensitive adhesive sheet, and method for producing pressure-sensitive adhesive sheet
JPWO2020050332A1 (en) * 2018-09-07 2021-09-02 リンテック株式会社 A release liner, a method for producing a release liner, an adhesive sheet, and a method for producing an adhesive sheet.
US11613678B2 (en) 2018-09-07 2023-03-28 Lintec Corporation Release liner, method of producing release liner, adhesive sheet, and method of producing adhesive sheet

Also Published As

Publication number Publication date
JPWO2016059932A1 (en) 2017-08-03

Similar Documents

Publication Publication Date Title
KR102463777B1 (en) Adhesive sheet
JP6925973B2 (en) Double-sided tape
JP5740124B2 (en) Double-sided adhesive tape and display device with touch panel
US20190002737A1 (en) Film backings for peel release mounting
TW201105765A (en) Adhesive material having removability
JP5483713B2 (en) Surface protection film
EP1692240A2 (en) Pressure sensitive adhesive composition and article
JP6917302B2 (en) Adhesive article with barrier layer
KR20190003644A (en) Adhesive sheet with release liner
JP2011013496A (en) Surface protective film for optical film, and optical film with surface protective film
US20190359861A1 (en) Film backings for stretch release mounting
TWI816640B (en) Conformable, peelable adhesive articles
WO2016059932A1 (en) Easy sticking pressure-sensitive adhesive tape or sheet
JP2011001393A (en) Antiscattering film and method for producing the same
WO2016084948A1 (en) Adhesive sheet
JP2005272763A (en) Pressure sensitive adhesive sheet for pasting
JP5026666B2 (en) Adhesive composition
JP2011013500A (en) Surface protective film for optical film and optical film with surface protective film
JP6778562B2 (en) Adhesive sheet with release liner
JP2001234149A (en) Pressure-sensitive adhesive composition
JP2010076178A (en) Protective film
JP5116706B2 (en) Surface protection sheet
CN211688892U (en) Prevent cull protection film
WO2016059931A1 (en) Easy sticking pressure-sensitive adhesive tape or sheet
JP2017155140A (en) Double-sided adhesive sheet

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 15851219

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2016554024

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 15851219

Country of ref document: EP

Kind code of ref document: A1