WO2020153226A1 - Self-sticking adhesive tape roll body - Google Patents

Self-sticking adhesive tape roll body Download PDF

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Publication number
WO2020153226A1
WO2020153226A1 PCT/JP2020/001287 JP2020001287W WO2020153226A1 WO 2020153226 A1 WO2020153226 A1 WO 2020153226A1 JP 2020001287 W JP2020001287 W JP 2020001287W WO 2020153226 A1 WO2020153226 A1 WO 2020153226A1
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WO
WIPO (PCT)
Prior art keywords
self
pressure
adhesive tape
sensitive adhesive
adhesive
Prior art date
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PCT/JP2020/001287
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French (fr)
Japanese (ja)
Inventor
真輝 小出
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ニチバン株式会社
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Application filed by ニチバン株式会社 filed Critical ニチバン株式会社
Priority to JP2020568104A priority Critical patent/JP7441185B2/en
Publication of WO2020153226A1 publication Critical patent/WO2020153226A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • 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
    • C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/08—Macromolecular additives
    • 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
    • C09J125/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Adhesives based on derivatives of such polymers
    • C09J125/02—Homopolymers or copolymers of hydrocarbons
    • C09J125/04—Homopolymers or copolymers of styrene
    • C09J125/08—Copolymers of styrene
    • 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
    • C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
    • C09J7/38—Pressure-sensitive adhesives [PSA]

Definitions

  • the present invention relates to a self-adhesive pressure-sensitive adhesive tape roll body.
  • the self-adhesive pressure-sensitive adhesive tape is a pressure-sensitive adhesive tape having a pressure-sensitive adhesive layer and a base material layer like a normal pressure-sensitive adhesive tape, and binds various articles such as fresh vegetables, fresh flowers, documents, newspapers and magazines. It is an adhesive tape specialized for that purpose (for example, Patent Document 1).
  • the method of using the self-adhesive adhesive tape is usually as follows. Cover the outer periphery of the self-adhesive tape with the self-adhesive adhesive tape so that the self-adhesive surface (adhesive layer surface) of the self-adhesive tape faces the object to be bound (object to be bound), and then attach the self-adhesive surfaces of the adhesive tape to each other.
  • the objects to be bound are bound by sticking them together.
  • the self-adhesive pressure-sensitive adhesive tape has a high adhesive force (self-adhesive force) between the adhesive surfaces and a high tackiness in order to reduce the influence of adhesive residue on the material to be bound and to achieve sufficient binding property. It is required to have low adhesion properties.
  • the self-adhesive pressure-sensitive adhesive tape is usually sold as a self-adhesive pressure-sensitive adhesive tape roll formed by winding a long self-adhesive pressure-sensitive adhesive tape. Furthermore, a dedicated device for assisting the use of such a self-adhesive pressure-sensitive adhesive tape roll body has also been studied (for example, Patent Document 2).
  • the self-adhesive pressure-sensitive adhesive tape has a lower self-adhesive binding property (self-adhesive force and self-adhesive force) depending on the type of the object to be bound. Both tackiness and higher self-adhesion must be achieved.
  • an object of the present invention is to provide a self-adhesive pressure-sensitive adhesive tape roll body having all of high self-adhesion binding property, low tack, and low rewinding property.
  • the present inventors have conducted diligent research based on the above problems, and found that the above problems can be solved by combining a specific tape-shaped substrate and a specific adhesive tape member, and completed the present invention. It was That is, the present invention is as follows.
  • the present invention is A self-adhesive pressure-sensitive adhesive tape roll body obtained by winding a pressure-sensitive adhesive tape member having a tape-shaped base material and an adhesive layer provided on one surface of the tape-shaped base material directly or via another layer, in a roll shape.
  • the pressure-sensitive adhesive layer contains a styrene-based elastomer and a tackifying resin
  • the tackifying resin contains an alicyclic saturated hydrocarbon resin
  • the tape-shaped base material has a surface roughness based on JIS B 0601-2013 of 0.5 to 5.0 ⁇ m in terms of arithmetic average roughness (Ra) on the surface opposite to the surface provided with the adhesive layer.
  • the self-adhesive pressure-sensitive adhesive tape roll body is characterized by having a fine concavo-convex structure having a ten-point average roughness (Rz) of 10 to 50 ⁇ m.
  • the fine concavo-convex structure has a surface roughness based on JIS B 0601-2013 of 1.0 to 4.0 ⁇ m in terms of arithmetic average roughness (Ra) and 20 in terms of ten-point average roughness (Rz). It may be up to 40 ⁇ m.
  • the pressure-sensitive adhesive layer may contain a high styrene content elastomer having a styrene content of more than 20 mass% and a low styrene content elastomer having a styrene content of 20 mass% or less.
  • the ratio (El/Eh) may be 2.0 or less.
  • the ratio of the alicyclic saturated hydrocarbon resin to the entire tackifying resin in the pressure-sensitive adhesive layer may be 50 to 95% by mass.
  • the pressure-sensitive adhesive tape member may be a laminate in which the tape-shaped substrate, the ink layer, the primer layer, and the pressure-sensitive adhesive layer are laminated in this order.
  • the self-adhesive pressure-sensitive adhesive tape roll body may be a plant invitation.
  • a self-adhesive pressure-sensitive adhesive tape roll body having all of high self-adhesion binding property, low tack, and low rewinding property.
  • FIG. 1 shows a conceptual side view of a self-adhesive pressure-sensitive adhesive tape roll body 100 according to this embodiment.
  • FIG. 2 is a conceptual side view of the adhesive tape member 110 according to this embodiment.
  • FIG. 3 is a conceptual diagram of the self-adhesion holding force testing method according to the present embodiment.
  • the roll diameter, the number of windings of the pressure-sensitive adhesive tape member 110, and the like can be changed as appropriate.
  • the material and shape of the shaft core 120 are not particularly limited, and can be appropriately changed depending on the application of the self-adhesive pressure-sensitive adhesive tape roll body 100.
  • the self-adhesive pressure-sensitive adhesive tape roll body 100 may be a roll body having no axis 120 (so-called coreless type).
  • the adhesive tape member 110 will be described in detail below.
  • the adhesive tape member 110 is a laminated body including a tape-shaped base material 111 and an adhesive layer 114 provided on one surface of the tape-shaped base material 111.
  • another layer may be interposed between the tape-shaped substrate 111 and the adhesive layer 114.
  • the other layer is preferably the ink layer 112 and the primer layer 113.
  • the adhesive tape member 110 is, as shown in FIG. 2, a laminated body in which a tape-shaped substrate 111, an ink layer 112, a primer layer 113, and an adhesive layer 114 are laminated in this order. Is preferred.
  • Tape-shaped substrate 111 A fine concavo-convex structure is provided on the surface of the tape-shaped substrate 111 opposite to the surface on which the adhesive layer 114 is provided (tape-shaped substrate surface 111a in FIG. 2).
  • the tape-shaped substrate surface 111a and the surface of the pressure-sensitive adhesive layer 114 are wound so as to be in contact with each other.
  • the fine concavo-convex structure provided on the tape-shaped substrate surface 111a is transferred to the pressure-sensitive adhesive layer surface 114a.
  • the pressure-sensitive adhesive tape member 110 pulled out from the self-adhesive pressure-sensitive adhesive tape roll body 100 also has the same fine uneven structure.
  • the contact area of the pressure-sensitive adhesive layer 114 having a predetermined component with the adherend is reduced, and low tackiness is realized, and at the same time, the pressure-sensitive adhesive layer. Since the concavo-convex structure is crushed when the 114 are pressure-bonded to each other, a strong adhesive force (self-adhesiveness) derived from the adhesive forming the adhesive layer 114 is exhibited.
  • the tape-shaped substrate surface 111a has a surface roughness according to JIS B 0601-2013 of 0.5 to 5.0 ⁇ m (or more than 0.5 and 5.0 ⁇ m) in terms of arithmetic average roughness (Ra). (Less than) fine uneven structure is provided.
  • the surface roughness based on JIS B 0601-2013 is 1.0 to 4.0 ⁇ m (or more than 1.0 and less than 4.0 ⁇ m) in terms of arithmetic average roughness (Ra). It is preferable to have.
  • the surface roughness based on JIS B 0601-2013 is preferably 10 to 50 ⁇ m in ten-point average roughness (Rz), and more preferably 20 to 40 ⁇ m in ten-point average roughness (Rz). preferable. More specifically, this surface roughness can be measured by the following method. Using Surfcoder ET4000A manufactured by Kosaka Laboratory, one surface is measured under the following conditions. Measuring force: 30 ⁇ N X pitch: 4.00 ⁇ m Y pitch: 4 ⁇ m Z measurement magnification: 10000 X feed rate: 0.5 mm/sec Low frequency cut: 0.8mm High cut: R+W Leveling: least squares
  • the fine concavo-convex structure can be formed by a known processing method, for example, satin finish processing, sandblasting, hairline processing, etc.
  • the fine concavo-convex structure is formed by the satin finish processing in that a fine concavo-convex structure can be formed.
  • a fine concavo-convex structure can be formed.
  • the material of the tape-shaped substrate 111 is not particularly limited, and examples thereof include a plastic film formed of a polyolefin resin, a polyester resin, a vinyl chloride resin, a polyimide resin, a crepe paper, a Japanese paper, and a non-woven fabric. .. These may be used alone or in combination of two or more. Further, the tape-shaped substrate 111 may be a laminated body including a plurality of layers. Furthermore, when the tape-shaped substrate 111 is a laminated body composed of a plurality of layers, a layer composed of a pressure-sensitive adhesive or an adhesive may be interposed.
  • the material for the tape-shaped substrate 111 is preferably a plastic film.
  • the thickness of the tape-shaped substrate 111 is not particularly limited, but may be, for example, 50 to 100 ⁇ m, preferably 60 to 80 ⁇ m.
  • the tape-shaped base material 111 may have a back surface treatment agent applied to the back surface (tape-shaped base material surface 111a) side of the tape-shaped base material 111.
  • a back surface treating agent a publicly known conventional one can be used, and examples thereof include a long-chain alkyl-based back surface treating agent.
  • the ink layer 112 is usually a layer formed by directly coloring (including printing) on the surface of the tape-shaped substrate 111 (the surface of the tape-shaped substrate 111 on the side of the adhesive layer 114), It may be formed of a film or the like colored with a predetermined colorant.
  • primer layer 113 >> The primer layer 113 can be described, for example, in International Publication No. 2014/126158.
  • the pressure-sensitive adhesive layer 114 is formed of a pressure-sensitive adhesive composition containing a styrene-based elastomer and a tackifying resin.
  • the pressure-sensitive adhesive layer 114 may include other components as needed.
  • the styrene elastomer is not particularly limited and includes, for example, styrene-isoprene-styrene block copolymer (SIS), styrene-butadiene-styrene block copolymer (SBS), styrene-ethylenebutylene-styrene block copolymer ( SEBS), styrene-ethylene propylene-styrene block copolymer (SEPS), styrene-ethylene ethylene propylene-styrene block copolymer (SEEPS), styrene-butadiene-butene-styrene block copolymer (SBBS) and the like. .. In addition, these may be partially modified. These may be used alone or in combination of two or more.
  • SIS styrene-isoprene-styrene block copolymer
  • SBS styrene-buta
  • styrene-based elastomer a form containing only a high styrene content elastomer having a styrene content of more than 20% by mass, a form containing only a low styrene content elastomer having a styrene content of 20% by mass or less, a high styrene content elastomer and a low styrene content It may be in any form including a styrene-containing elastomer, but a form including a high styrene-containing elastomer and a low styrene-containing elastomer is preferable.
  • the styrene content of the high styrene-containing elastomer is preferably more than 20% by mass and 40% by mass or less, and more preferably 25% by mass to 35% by mass.
  • the styrene content of the low styrene-containing elastomer is preferably 14% by mass to 20% by mass, more preferably 16% by mass to 18% by mass.
  • the ratio (El/Eh) of the low styrene content elastomer content (El) and the high styrene content elastomer content (Eh) in the pressure-sensitive adhesive layer is preferably 2.0 or less, and 1.5 It is more preferably the following or less, and particularly preferably 1.0 or less.
  • the content of the styrene elastomer in the pressure-sensitive adhesive layer 114 is preferably 55.5 to 62.5% by mass, more preferably 60.0 to 62.5% by mass.
  • the tackifying resin is not particularly limited, for example, rosin resin, terpene resin, aliphatic petroleum resin, alicyclic saturated hydrocarbon resin, aromatic petroleum resin, coumarone indene resin, styrene resin, Examples thereof include phenolic resins and xylene resins. These may be used alone or in combination of two or more. In order to enhance the effect of the present invention, it is preferable to use an alicyclic saturated hydrocarbon resin as the tackifying resin.
  • the tackifying resin preferably contains an alicyclic saturated hydrocarbon resin and at least one of a terpene resin and a styrene resin, and preferably all of them.
  • the alicyclic saturated hydrocarbon resin preferably has a softening point of 90 to 140°C, more preferably 120 to 140°C.
  • the softening point of the terpene resin is preferably 80 to 130°C, more preferably 110 to 120°C.
  • the styrene resin preferably has a softening point of 100 to 140°C, more preferably 110 to 130°C.
  • the content of the alicyclic saturated hydrocarbon resin with respect to the entire tackifying resin is preferably 50% by mass or more, and is 50 to 95% by mass (specifically, 50 to 93.9% by mass). Is more preferable, and 60 to 80% by mass is particularly preferable.
  • the content of the terpene resin with respect to the entire tackifying resin is preferably 15 to 50% by mass, more preferably 25 to 40% by mass.
  • the content of the styrene resin with respect to the entire tackifying resin is preferably 1.0 to 12.0% by mass, and more preferably 5.0 to 8.0% by mass.
  • the content of the tackifying resin in the pressure-sensitive adhesive layer 114 is preferably 37.5 to 44.5 mass%, more preferably 37.5 to 40.0 mass%.
  • ⁇ Other ingredients include known additives such as fillers, antioxidants, colorants, softeners, plasticizers, ultraviolet absorbers, and antioxidants. Further, as other components, an adhesive component other than the styrene elastomer (for example, a rubber adhesive other than the styrene elastomer, an acrylic adhesive, a silicone adhesive, etc.) may be included.
  • an adhesive component other than the styrene elastomer for example, a rubber adhesive other than the styrene elastomer, an acrylic adhesive, a silicone adhesive, etc.
  • filler for example, calcium carbonate, zinc white (zinc oxide), aluminum silicate, silica, talc, diatomaceous earth, silica sand, pumice powder, slate powder, mica powder, aluminum sol, alumina white, aluminum sulfate, Barium sulfate, lithopone, calcium sulfate, molybdenum disulfide, graphite, glass fiber, glass sphere, single crystal potassium titanate, carbon fiber, activated zinc white, zinc carbonate, magnesium oxide, basic magnesium carbonate, litharge, red lead, lead Examples include white, calcium hydroxide, activated calcium hydroxide, titanium oxide and the like. These may be used alone or in combination of two or more.
  • the content of the filler in the pressure-sensitive adhesive layer 114 is 20 mass% or less, 10 mass% or less, 5 mass% or less, 1 mass% or less, 0.1 mass% or less, 0 mass% or the like. can do. Further, it is possible to improve the performance of the self-adhesive pressure-sensitive adhesive tape by blending a filler. In that case, the blending amount of the filler in the pressure-sensitive adhesive layer 114 is 0.1% by mass or more and 1% by mass or more. The amount may be 5% by mass or more and 5% by mass or more.
  • antioxidant examples include dibutylhydroxytoluene (BHT), butylhydroxyanisole (BHA), vitamin C (ascorbic acid), vitamin E (tocopherol), sodium erythorbate, propyl gallate, sodium sulfite, and sulfur dioxide. Can be mentioned. These may be used alone or in combination of two or more.
  • the colorant may be either an inorganic type or an organic type, and these may be added so as to achieve a desired color. These may be used alone or in combination of two or more.
  • Softener examples include petroleum-based softening agents, plant-based softening agents, liquid rubber, liquid tackifying resins, synthetic plasticizers and the like. These may be used alone or in combination of two or more.
  • UV absorber examples include salicylic acid derivatives, benzophenone compounds, benzotriazole compounds, and cyanoacrylate compounds. These may be used alone or in combination of two or more.
  • Antiaging agents include naphthylamine compounds, diphenylamine compounds, p-phenylenediamine compounds, other amine compounds, amine compound mixtures, quinoline compounds, hydroquinone derivatives, monophenol compounds, bisphenol compounds, trisphenol compounds. Examples thereof include compounds, polyphenol compounds, thiobisphenol compounds and the like. These may be used alone or in combination of two or more.
  • the thickness of the adhesive layer 114 is not particularly limited, but may be, for example, 10 to 40 ⁇ m, preferably 20 to 30 ⁇ m.
  • the method for producing the self-adhesive pressure-sensitive adhesive tape roll body 100 is not particularly limited and can be produced by a known method. An example of a method for manufacturing the self-adhesive pressure-sensitive adhesive tape roll body 100 will be described below.
  • an adhesive solution prepared by adding an organic solvent or the like to the raw materials forming the adhesive layer 114, and a tape-shaped substrate 111 having a fine concavo-convex structure provided on at least one surface are prepared.
  • the ink layer 112 and the primer layer 113 are formed by sequentially performing a printing process and a primer process on the surface of the tape-shaped substrate 111 opposite to the surface on which the fine concavo-convex structure is provided.
  • the adhesive liquid is applied onto the primer layer 113 using an applicator or the like. After that, for example, drying is performed at 100° C. for 3 minutes to obtain the adhesive tape member 110 in which the adhesive layer 114 is provided on the primer layer 113.
  • the self-adhesive pressure-sensitive adhesive tape roll body 100 can be manufactured by winding the pressure-sensitive adhesive tape member 110 along the outer circumference of the shaft core 120.
  • the self-adhesive pressure-sensitive adhesive tape roll body 100 has low tackiness, high self-adhesion binding property, and low rewinding property, it can be used for various purposes.
  • it can be used as an adhesive tape for binding various articles such as fresh vegetables, fresh flowers, documents, newspapers and magazines.
  • the adhesive is impregnated with a cloth or the like as a base material, or spray-coated on both sides to be dried, wound, cut into a tape roll, an adhesive bandage, a sports fixing tape, a sports non-slip tape, etc. Can also be used as
  • the self-adhesive pressure-sensitive adhesive tape roll body 100 Since the self-adhesive pressure-sensitive adhesive tape roll body 100 has low tackiness and does not hinder the growth of vegetables, it can be preferably used as a reference for vegetables. Furthermore, since the self-adhesive pressure-sensitive adhesive tape roll body 100 has a high self-adhesive binding property, it can be preferably used for binding which requires a high load. For example, among the vegetable citations, it is preferable to use the tomato citations. When attracting cucumbers or grapes, it is sufficient to assume a maximum load of about 500 g for the self-adhesive pressure-sensitive adhesive tape, and the conventional self-adhesive pressure-sensitive adhesive tape can be used.
  • the self-adhesive pressure-sensitive adhesive tape roll body 100 according to the present invention has low tackiness and high self-adhesion bundling property, it can sufficiently handle such a heavy vegetable attraction.
  • the self-adhesive pressure-sensitive adhesive tape roll body 100 has low tackiness and low rewinding property
  • Examples 1 to 14 Tables 1 to 3] 20 parts by weight of "low styrene SIS (styrene content: 16% by mass, Quintac 3433N manufactured by Nippon Zeon Co., Ltd.)" as an elastomer ratio, "high styrene SIS (styrene content: 25% by mass, Asaprene ATN521 manufactured by Asahi Kasei Co., Ltd.)” 80 A tackifying resin "Terpene resin (YS Hara Chemical Co., Ltd.: YS resin PX1150N)", “Alicyclic saturated hydrocarbon resin (Arakawa Chemical Industry Co., Ltd.: Alcon P140)", and "styrene resin ( Several types of rubber-based pressure-sensitive adhesives were prepared by changing the compounding number of each of "Mitsui Chemicals: FTR2120)” and “styrene resin (Mitsui Chemicals: FTR2140)".
  • a CPP film having a thickness of 70 ⁇ m having a fine concavo-convex structure (arithmetic mean roughness (Ra) 2.9 ⁇ m, ten-point mean roughness (Rz) 29.7 ⁇ m, satin processed surface) on one surface was prepared.
  • An ink layer (coloring layer) and a primer layer were sequentially formed on the side opposite to the side having the fine concavo-convex structure of the CPP film.
  • the pressure-sensitive adhesive layer was applied onto the primer layer so as to have a thickness of 30 ⁇ m to prepare a pressure-sensitive adhesive tape having a width of 11 mm.
  • the adhesive layer was wound so that the satin-finished surface of the film was in contact with the adhesive layer to prepare an adhesive tape roll having a width of 11 mm.
  • Examples 15-18, Comparative Examples 1-2: Table 4 The effect of the fine concavo-convex structure on the adhesive property was confirmed by the following adhesive tape roll body.
  • An ink layer (coloring layer) and a primer layer were sequentially formed on the pressure-sensitive adhesive coated surface in the same manner as in Examples 1 to 14.
  • the pressure-sensitive adhesive of Example 6 was applied onto the primer layer so that the thickness of the pressure-sensitive adhesive layer was 30 ⁇ m to prepare a pressure-sensitive adhesive tape having a width of 11 mm.
  • the adhesive layer was wound so that the satin-finished surface of the film was in contact with the adhesive layer to prepare an adhesive tape roll having a width of 11 mm.
  • Test tack test A probe tack test was conducted under the conditions of 23° C. and 50% RH, using the tapes (width: 11 mm) of Examples and Comparative Examples as test pieces according to ASTM D2979. Specifically, the test piece was attached to the weight ring without slack, and a cylindrical probe having a diameter of 5 mm was applied to the adhesive surface of the test piece with a load of 0.98 ⁇ 0.001 N/cm 2 at a contact speed of 10 ⁇ 0. After contacting at 1.0 mm/sec for 1.0 ⁇ 0.01 seconds, the force (N/5 mm ⁇ ) required to peel the probe vertically from the adhesive surface at the same speed as the contact speed was measured.
  • Example 16 had the characteristics closest to the target.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Adhesive Tapes (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Laminated Bodies (AREA)

Abstract

[Problem] To provide a self-sticking adhesive tape roll body that has all of high self-sticking bindability, low tackiness, and low rewindability. [Solution] A self-sticking adhesive tape roll body is obtained by winding an adhesive tape member in a roll shape, the adhesive tape member having a tape-like base material and an adhesive layer provided directly, or via another layer, on one side of the tape-like base material. The self-sticking adhesive tape roll body is characterized in that the adhesive layer includes a styrene-based elastomer and a tackifier resin, the tackifier resin includes an alicyclic aliphatic saturated hydrocarbon resin, and the tape-like base material has, on the surface on the opposite side from the surface where the adhesive layer is provided, a microrelief structure that has a JIS B0601-2013-based surface roughness which is an arithmetic average roughness (Ra) of 0.5-5.0 μm and a ten-point average roughness (Rz) of 10-50 μm.

Description

自着性粘着テープロール体Self-adhesive adhesive tape roll
　本発明は、自着性粘着テープロール体に関する。 The present invention relates to a self-adhesive pressure-sensitive adhesive tape roll body.
　自着性粘着テープは、通常の粘着テープと同様に粘着剤層と基材層とを有する粘着テープであり、例えば、生野菜類、生花類、書類、新聞、雑誌等の各種物品を結束することに特化した粘着テープである（例えば、特許文献１等）。 The self-adhesive pressure-sensitive adhesive tape is a pressure-sensitive adhesive tape having a pressure-sensitive adhesive layer and a base material layer like a normal pressure-sensitive adhesive tape, and binds various articles such as fresh vegetables, fresh flowers, documents, newspapers and magazines. It is an adhesive tape specialized for that purpose (for example, Patent Document 1).
　自着性粘着テープの使用方法は、通常、以下の通りである。自着性粘着テープの自着面（粘着剤層面）が結束する物品（被結束物）を向くように自着性粘着テープで被結束物の外周を覆い、その後粘着テープの自着面同士を合掌貼りすることで、被結束物の結束を行う。 The method of using the self-adhesive adhesive tape is usually as follows. Cover the outer periphery of the self-adhesive tape with the self-adhesive adhesive tape so that the self-adhesive surface (adhesive layer surface) of the self-adhesive tape faces the object to be bound (object to be bound), and then attach the self-adhesive surfaces of the adhesive tape to each other. The objects to be bound are bound by sticking them together.
　自着性粘着テープは、被結束物への糊残り等の影響を小さくし、且つ、十分な結束性を達成するために、粘着剤面同士の粘着力（自着力）が高く、タック性が低い、という粘着特性を有することが求められる。 The self-adhesive pressure-sensitive adhesive tape has a high adhesive force (self-adhesive force) between the adhesive surfaces and a high tackiness in order to reduce the influence of adhesive residue on the material to be bound and to achieve sufficient binding property. It is required to have low adhesion properties.
　また、自着性粘着テープは、通常、長尺の自着性粘着テープを巻き取り形成された自着性粘着テープロール体として販売されている。更に、このような自着性粘着テープロール体の使用を補助するための専用の器具も検討されている（例えば、特許文献２等）。 Also, the self-adhesive pressure-sensitive adhesive tape is usually sold as a self-adhesive pressure-sensitive adhesive tape roll formed by winding a long self-adhesive pressure-sensitive adhesive tape. Furthermore, a dedicated device for assisting the use of such a self-adhesive pressure-sensitive adhesive tape roll body has also been studied (for example, Patent Document 2).
特開２００４－１６１９６２号公報JP 2004-161962A 特許第６２２６８８０号Patent No. 6226880
　自着性粘着テープにおいては、対象とする被結束物の種類によって必要とする自着結束性（自着力及び自着保持力）が異なることから、様々な用途に対応するためには、より低いタック性とより高い自着結束性の両方を達成する必要がある。 The self-adhesive pressure-sensitive adhesive tape has a lower self-adhesive binding property (self-adhesive force and self-adhesive force) depending on the type of the object to be bound. Both tackiness and higher self-adhesion must be achieved.
　また、特許文献２等で開示された器具を使用する場合、器具にセットされた自着性粘着テープの粘着面が器具と接触した状態となるため、テープの繰り出しを阻害しないために、タック性をより低くすることが求められる。更に、この器具を操作する作業者に対する、一回結束する毎の負担を軽くするために、自着性粘着テープロール体における自着性テープの巻戻し性（解きほぐし性）を低く（軽く）する必要があった。 Further, when using the device disclosed in Patent Document 2 or the like, since the adhesive surface of the self-adhesive adhesive tape set on the device is in contact with the device, it does not hinder the feeding of the tape, and thus has tackiness. Is required to be lower. Further, in order to lighten the burden on the operator who operates this device each time it is bound, the unwinding property (unraveling property) of the self-adhesive tape in the self-adhesive tape roll body is lowered (lightened). There was a need.
　そこで本発明は、高い自着結束性、低いタック、低い巻戻し性、の全てを兼ね備える自着性粘着テープロール体を提供することを課題とする。 Therefore, an object of the present invention is to provide a self-adhesive pressure-sensitive adhesive tape roll body having all of high self-adhesion binding property, low tack, and low rewinding property.
　本発明者らは、上記課題のもと鋭意研究を行い、特定のテープ状基材と、特定の粘着テープ部材と、を組み合わせることで上記課題を解決可能なことを見出し、本発明を完成させた。即ち、本発明は以下の通りである。 The present inventors have conducted diligent research based on the above problems, and found that the above problems can be solved by combining a specific tape-shaped substrate and a specific adhesive tape member, and completed the present invention. It was That is, the present invention is as follows.
　（１）本発明は、
　テープ状基材と、テープ状基材の片面に直接又は他の層を介して設けられた粘着剤層と、を有する粘着テープ部材をロール状に巻回した自着性粘着テープロール体であって、
　粘着剤層は、スチレン系エラストマーと、粘着付与樹脂と、を含有し、
　粘着付与樹脂は、脂環族飽和炭化水素系樹脂を含有し、
　テープ状基材は、粘着剤層が設けられた面の反対側の面に、ＪＩＳ　Ｂ　０６０１－２０１３に基づく表面粗さが、算術平均粗さ（Ｒａ）で０．５～５．０μｍであると共に、十点平均粗さ（Ｒｚ）で１０～５０μｍの微細凹凸構造を有する
ことを特徴とする、自着性粘着テープロール体である。
　（２）前記微細凹凸構造は、ＪＩＳ　Ｂ　０６０１－２０１３に基づく表面粗さが、算術平均粗さ（Ｒａ）で１．０～４．０μｍであると共に、十点平均粗さ（Ｒｚ）で２０～４０μｍであってもよい。
　（３）前記粘着剤層は、スチレン含有量が２０質量％超である高スチレン含有エラストマーと、スチレン含有量が２０質量％以下である低スチレン含有エラストマーとを含有してもよい。
　（４）前記粘着剤層中の、スチレン含有量が２０質量％以下である低スチレン含有エラストマーの質量（Ｅｌ）とスチレン含有量が２０質量％超である高スチレン含有エラストマーの質量（Ｅｈ）との比（Ｅｌ／Ｅｈ）が２．０以下であってもよい。
　（５）前記粘着剤層中の粘着付与樹脂全体に対して、脂環族飽和炭化水素系樹脂の占める割合が５０～９５質量％であってもよい。
　（６）前記粘着テープ部材が、前記テープ状基材と、インク層と、プライマー層と、前記粘着剤層と、がこの順番で積層された積層体であってもよい。
　（７）前記自着性粘着テープロール体は、植物誘引用であってもよい。 (1) The present invention is
A self-adhesive pressure-sensitive adhesive tape roll body obtained by winding a pressure-sensitive adhesive tape member having a tape-shaped base material and an adhesive layer provided on one surface of the tape-shaped base material directly or via another layer, in a roll shape. hand,
The pressure-sensitive adhesive layer contains a styrene-based elastomer and a tackifying resin,
The tackifying resin contains an alicyclic saturated hydrocarbon resin,
The tape-shaped base material has a surface roughness based on JIS B 0601-2013 of 0.5 to 5.0 μm in terms of arithmetic average roughness (Ra) on the surface opposite to the surface provided with the adhesive layer. In addition, the self-adhesive pressure-sensitive adhesive tape roll body is characterized by having a fine concavo-convex structure having a ten-point average roughness (Rz) of 10 to 50 μm.
(2) The fine concavo-convex structure has a surface roughness based on JIS B 0601-2013 of 1.0 to 4.0 μm in terms of arithmetic average roughness (Ra) and 20 in terms of ten-point average roughness (Rz). It may be up to 40 μm.
(3) The pressure-sensitive adhesive layer may contain a high styrene content elastomer having a styrene content of more than 20 mass% and a low styrene content elastomer having a styrene content of 20 mass% or less.
(4) In the pressure-sensitive adhesive layer, the mass (El) of the low styrene-containing elastomer having a styrene content of 20% by mass or less and the mass (Eh) of the high-styrene-containing elastomer having a styrene content of more than 20% by mass. The ratio (El/Eh) may be 2.0 or less.
(5) The ratio of the alicyclic saturated hydrocarbon resin to the entire tackifying resin in the pressure-sensitive adhesive layer may be 50 to 95% by mass.
(6) The pressure-sensitive adhesive tape member may be a laminate in which the tape-shaped substrate, the ink layer, the primer layer, and the pressure-sensitive adhesive layer are laminated in this order.
(7) The self-adhesive pressure-sensitive adhesive tape roll body may be a plant invitation.
　本発明によれば、高い自着結束性、低いタック、低い巻戻し性、の全てを兼ね備える自着性粘着テープロール体を提供することが可能である。 According to the present invention, it is possible to provide a self-adhesive pressure-sensitive adhesive tape roll body having all of high self-adhesion binding property, low tack, and low rewinding property.
図１は、本実施形態に係る自着性粘着テープロール体１００の概念側面図を示す。FIG. 1 shows a conceptual side view of a self-adhesive pressure-sensitive adhesive tape roll body 100 according to this embodiment. 図２は、本実施形態に係る粘着テープ部材１１０の概念側面図を示す。FIG. 2 is a conceptual side view of the adhesive tape member 110 according to this embodiment. 図３は、本実施例に係る自着保持力の試験方法の概念図を示す。FIG. 3 is a conceptual diagram of the self-adhesion holding force testing method according to the present embodiment.
　次に、図１～図２を参照しつつ、本発明について具体的に説明するが、本発明は以下には何ら限定されない。 Next, the present invention will be specifically described with reference to FIGS. 1 and 2, but the present invention is not limited to the following.
＜＜＜＜自着性粘着テープロール体１００＞＞＞＞
　自着性粘着テープロール体１００は、粘着テープ部材１１０を、軸芯１２０を芯としてロール状に巻回して形成されている（図１）。 <<<<< Self-adhesive adhesive tape roll body 100>>>>
The self-adhesive pressure-sensitive adhesive tape roll body 100 is formed by winding the pressure-sensitive adhesive tape member 110 around a shaft 120 as a core (FIG. 1).
　自着性粘着テープロール体１００において、ロール径や粘着テープ部材１１０の巻き数等は適宜変更可能である。 In the self-adhesive pressure-sensitive adhesive tape roll body 100, the roll diameter, the number of windings of the pressure-sensitive adhesive tape member 110, and the like can be changed as appropriate.
　軸芯１２０の材料および形状は、特に限定されず、自着性粘着テープロール体１００の用途等に応じて適宜変更可能である。更には、自着性粘着テープロール体１００は、軸芯１２０を有さないロール体（いわゆる芯無しタイプ）であってもよい。 The material and shape of the shaft core 120 are not particularly limited, and can be appropriately changed depending on the application of the self-adhesive pressure-sensitive adhesive tape roll body 100. Furthermore, the self-adhesive pressure-sensitive adhesive tape roll body 100 may be a roll body having no axis 120 (so-called coreless type).
　以下、粘着テープ部材１１０について詳述する。 The adhesive tape member 110 will be described in detail below.
＜＜＜粘着テープ部材１１０＞＞＞
　粘着テープ部材１１０は、テープ状基材１１１と、テープ状基材１１１の片面に設けられた粘着剤層１１４と、を有する積層体である。 <<<Adhesive tape member 110>>>>
The adhesive tape member 110 is a laminated body including a tape-shaped base material 111 and an adhesive layer 114 provided on one surface of the tape-shaped base material 111.
　更に、図２に示されるように、テープ状基材１１１と粘着剤層１１４との間には、別の層が介在されていてもよい。この別の層として、インク層１１２およびプライマー層１１３であることが好ましい。より詳細には、粘着テープ部材１１０は、図２に示されるように、テープ状基材１１１と、インク層１１２と、プライマー層１１３と、粘着剤層１１４とがこの順番で積層された積層体であることが好ましい。 Further, as shown in FIG. 2, another layer may be interposed between the tape-shaped substrate 111 and the adhesive layer 114. The other layer is preferably the ink layer 112 and the primer layer 113. More specifically, the adhesive tape member 110 is, as shown in FIG. 2, a laminated body in which a tape-shaped substrate 111, an ink layer 112, a primer layer 113, and an adhesive layer 114 are laminated in this order. Is preferred.
＜＜テープ状基材１１１＞＞
　テープ状基材１１１の、粘着剤層１１４が設けられている面の反対側の面（図２におけるテープ状基材表面１１１ａ）には、微細凹凸構造が設けられている。自着性粘着テープロール体１００においては、テープ状基材表面１１１ａと、粘着剤層１１４の表面（粘着剤層表面１１４ａ）と、が接触するように巻回されている。その結果、テープ状基材表面１１１ａに設けられた微細凹凸構造が粘着剤層表面１１４ａに転写される。即ち、自着性粘着テープロール体１００から引き出された粘着テープ部材１１０も、同様の微細凹凸構造を有することとなる。粘着剤層表面１１４ａに所定の微細凹凸構造を転写させることによって、所定の成分を有する着剤層１１４の被着体への接触面積が低減され、低タック性が実現されるとともに、粘着剤層１１４同士が圧着された際には凹凸構造が潰れるため、粘着剤層１１４を形成する粘着剤由来の強い粘着力（自着性）が発揮される。 << Tape-shaped substrate 111 >>
A fine concavo-convex structure is provided on the surface of the tape-shaped substrate 111 opposite to the surface on which the adhesive layer 114 is provided (tape-shaped substrate surface 111a in FIG. 2). In the self-adhesive pressure-sensitive adhesive tape roll body 100, the tape-shaped substrate surface 111a and the surface of the pressure-sensitive adhesive layer 114 (pressure-sensitive adhesive layer surface 114a) are wound so as to be in contact with each other. As a result, the fine concavo-convex structure provided on the tape-shaped substrate surface 111a is transferred to the pressure-sensitive adhesive layer surface 114a. That is, the pressure-sensitive adhesive tape member 110 pulled out from the self-adhesive pressure-sensitive adhesive tape roll body 100 also has the same fine uneven structure. By transferring a predetermined fine concavo-convex structure to the pressure-sensitive adhesive layer surface 114a, the contact area of the pressure-sensitive adhesive layer 114 having a predetermined component with the adherend is reduced, and low tackiness is realized, and at the same time, the pressure-sensitive adhesive layer. Since the concavo-convex structure is crushed when the 114 are pressure-bonded to each other, a strong adhesive force (self-adhesiveness) derived from the adhesive forming the adhesive layer 114 is exhibited.
　より詳細には、テープ状基材表面１１１ａには、ＪＩＳ　Ｂ　０６０１－２０１３に基づく表面粗さが、算術平均粗さ（Ｒａ）で０．５～５．０μｍ（または０．５超５．０μｍ未満）の微細凹凸構造が設けられている。微細凹凸構造の粗さをこの範囲とすることにより、本発明の効果を実現することが可能である。本発明の効果をより高めるためには、ＪＩＳ　Ｂ　０６０１－２０１３に基づく表面粗さが、算術平均粗さ（Ｒａ）で１．０～４．０μｍ（または１．０超４．０μｍ未満）であることが好ましい。更には、ＪＩＳ　Ｂ　０６０１－２０１３に基づく表面粗さが、十点平均粗さ（Ｒｚ）で１０～５０μｍであることが好ましく、十点平均粗さ（Ｒｚ）で２０～４０μｍであることがより好ましい。この表面粗さは、より具体的には、以下の方法によって測定できる。
　小坂研究所製のＳｕｒｆｃｏｄｅｒ　ＥＴ４０００Ａを用いて、以下の条件で片方の面を測定する。
　測定力：３０μＮ
　Ｘピッチ：４．００μm
　Ｙピッチ：４μm
　Ｚ測定倍率：10000
　Ｘ送り速さ：０．５ｍｍ／ｓｅｃ
　低域カット：０．８mm
　高域カット：Ｒ＋Ｗ
　レベリング：最小二乗法 More specifically, the tape-shaped substrate surface 111a has a surface roughness according to JIS B 0601-2013 of 0.5 to 5.0 μm (or more than 0.5 and 5.0 μm) in terms of arithmetic average roughness (Ra). (Less than) fine uneven structure is provided. By setting the roughness of the fine concavo-convex structure within this range, the effects of the present invention can be realized. In order to further enhance the effect of the present invention, the surface roughness based on JIS B 0601-2013 is 1.0 to 4.0 μm (or more than 1.0 and less than 4.0 μm) in terms of arithmetic average roughness (Ra). It is preferable to have. Further, the surface roughness based on JIS B 0601-2013 is preferably 10 to 50 μm in ten-point average roughness (Rz), and more preferably 20 to 40 μm in ten-point average roughness (Rz). preferable. More specifically, this surface roughness can be measured by the following method.
Using Surfcoder ET4000A manufactured by Kosaka Laboratory, one surface is measured under the following conditions.
Measuring force: 30μN
X pitch: 4.00 μm
Y pitch: 4 μm
Z measurement magnification: 10000
X feed rate: 0.5 mm/sec
Low frequency cut: 0.8mm
High cut: R+W
Leveling: least squares
　微細凹凸構造は、公知の加工方法、例えば、梨地加工、サンドブラスト加工およびヘアーライン加工等によって形成することが可能であるが、緻密な凹凸構造を形成可能という点で、微細凹凸構造を梨地加工によって形成することが好ましい。 The fine concavo-convex structure can be formed by a known processing method, for example, satin finish processing, sandblasting, hairline processing, etc. However, the fine concavo-convex structure is formed by the satin finish processing in that a fine concavo-convex structure can be formed. Preferably.
　テープ状基材１１１の材料としては、特に限定されないが、例えば、ポリオレフィン系樹脂、ポリエステル系樹脂、塩化ビニル系樹脂、ポリイミド系樹脂などで形成したプラスチックフイルム、クレープ紙、和紙、不織布などが挙げられる。これらは、１種単独で使用されてもよいし、２種以上を併用されてもよい。また、テープ状基材１１１は、複数の層からなる積層体であってもよい。更に、テープ状基材１１１が複数の層からなる積層体である場合、粘着剤や接着剤からなる層が介在されていてもよい。 The material of the tape-shaped substrate 111 is not particularly limited, and examples thereof include a plastic film formed of a polyolefin resin, a polyester resin, a vinyl chloride resin, a polyimide resin, a crepe paper, a Japanese paper, and a non-woven fabric. .. These may be used alone or in combination of two or more. Further, the tape-shaped substrate 111 may be a laminated body including a plurality of layers. Furthermore, when the tape-shaped substrate 111 is a laminated body composed of a plurality of layers, a layer composed of a pressure-sensitive adhesive or an adhesive may be interposed.
　テープ状基材１１１の材料としては、プラスチックフィルムであることが好ましい。 The material for the tape-shaped substrate 111 is preferably a plastic film.
　テープ状基材１１１の厚みは、特に限定されないが、例えば、５０～１００μｍ、好ましくは６０～８０μｍとすればよい。 The thickness of the tape-shaped substrate 111 is not particularly limited, but may be, for example, 50 to 100 μm, preferably 60 to 80 μm.
　また、テープ状基材１１１は、テープ状基材１１１の背面（テープ状基材表面１１１ａ）側に、背面処理剤が適用されたものであってもよい。このような背面処理剤としては、公知慣例のものを使用可能であり、例えば、長鎖アルキル系の背面処理剤等が挙げられる。 Further, the tape-shaped base material 111 may have a back surface treatment agent applied to the back surface (tape-shaped base material surface 111a) side of the tape-shaped base material 111. As such a back surface treating agent, a publicly known conventional one can be used, and examples thereof include a long-chain alkyl-based back surface treating agent.
＜＜インク層１１２＞＞
　インク層１１２は、通常、テープ状基材１１１表面（テープ状基材１１１の粘着剤層１１４側の表面）に直接着色（印字等を含む。）されることで形成された層であるが、所定の着色剤によって着色されたフィルム等で形成されていてもよい。 <<ink layer 112>>
The ink layer 112 is usually a layer formed by directly coloring (including printing) on the surface of the tape-shaped substrate 111 (the surface of the tape-shaped substrate 111 on the side of the adhesive layer 114), It may be formed of a film or the like colored with a predetermined colorant.
＜＜プライマー層１１３＞＞
　プライマー層１１３は、例えば、国際公開第２０１４／１２６１５８号に記載されたものとすることができる。 <<primer layer 113>>
The primer layer 113 can be described, for example, in International Publication No. 2014/126158.
＜＜粘着剤層１１４＞＞
　粘着剤層１１４は、スチレン系エラストマーと、粘着付与樹脂と、を含有する粘着剤組成物によって形成される。また、粘着剤層１１４は、必要に応じてその他の成分を含んでいてもよい。 << adhesive layer 114 >>
The pressure-sensitive adhesive layer 114 is formed of a pressure-sensitive adhesive composition containing a styrene-based elastomer and a tackifying resin. In addition, the pressure-sensitive adhesive layer 114 may include other components as needed.
＜スチレン系エラストマー＞
　スチレン系エラストマーとしては、特に限定されず、例えば、スチレン－イソプレン－スチレンブロック共重合体（ＳＩＳ）、スチレン－ブタジエン－スチレンブロック共重合体（ＳＢＳ）、スチレン－エチレンブチレン－スチレンブロック共重合体（ＳＥＢＳ）、スチレン－エチレンプロピレン－スチレンブロック共重合体（ＳＥＰＳ）、スチレン－エチレンエチレンプロピレン－スチレンブロック共重合体（ＳＥＥＰＳ）、スチレン－ブタジエン－ブテン－スチレンブロック共重合体（ＳＢＢＳ）等が挙げられる。また、これらは一部が変性されていてもよい。これらは、１種単独で使用されてもよいし、２種以上を併用されてもよい。 <Styrene elastomer>
The styrene elastomer is not particularly limited and includes, for example, styrene-isoprene-styrene block copolymer (SIS), styrene-butadiene-styrene block copolymer (SBS), styrene-ethylenebutylene-styrene block copolymer ( SEBS), styrene-ethylene propylene-styrene block copolymer (SEPS), styrene-ethylene ethylene propylene-styrene block copolymer (SEEPS), styrene-butadiene-butene-styrene block copolymer (SBBS) and the like. .. In addition, these may be partially modified. These may be used alone or in combination of two or more.
　スチレン系エラストマーとしては、スチレン含有量が２０質量％超である高スチレン含有エラストマーのみを含む形態、スチレン含有量が２０質量％以下である低スチレン含有エラストマーのみを含む形態、高スチレン含有エラストマーおよび低スチレン含有エラストマーを含む形態、のいずれであってもよいが、高スチレン含有エラストマーおよび低スチレン含有エラストマーを含む形態であることが好ましい。 As the styrene-based elastomer, a form containing only a high styrene content elastomer having a styrene content of more than 20% by mass, a form containing only a low styrene content elastomer having a styrene content of 20% by mass or less, a high styrene content elastomer and a low styrene content It may be in any form including a styrene-containing elastomer, but a form including a high styrene-containing elastomer and a low styrene-containing elastomer is preferable.
　高スチレン含有エラストマーのスチレン含有量は、２０質量％超４０質量％以下であることが好ましく、２５質量％～３５質量％であることがより好ましい。 The styrene content of the high styrene-containing elastomer is preferably more than 20% by mass and 40% by mass or less, and more preferably 25% by mass to 35% by mass.
　低スチレン含有エラストマーのスチレン含有量は、１４質量％～２０質量％であることが好ましく、１６質量％～１８質量％であることがより好ましい。 The styrene content of the low styrene-containing elastomer is preferably 14% by mass to 20% by mass, more preferably 16% by mass to 18% by mass.
　粘着剤層中の、低スチレン含有エラストマーの含有量（Ｅｌ）と高スチレン含有エラストマーの含有量（Ｅｈ）との比（Ｅｌ／Ｅｈ）が、２．０以下であることが好ましく、１．５以下であることがより好ましく、１．０以下であることが特に好ましい。 The ratio (El/Eh) of the low styrene content elastomer content (El) and the high styrene content elastomer content (Eh) in the pressure-sensitive adhesive layer is preferably 2.0 or less, and 1.5 It is more preferably the following or less, and particularly preferably 1.0 or less.
　粘着剤層１１４中のスチレン系エラストマーの含有量は、５５．５～６２．５質量％であることが好ましく、６０．０～６２．５質量％であることがより好ましい。 The content of the styrene elastomer in the pressure-sensitive adhesive layer 114 is preferably 55.5 to 62.5% by mass, more preferably 60.0 to 62.5% by mass.
＜粘着付与樹脂＞
　粘着付与樹脂としては、特に限定されず、例えば、ロジン系樹脂、テルペン系樹脂、脂肪族系石油樹脂、脂環族飽和炭化水素樹脂、芳香族系石油樹脂、クマロンインデン樹脂、スチレン系樹脂、フェノール系樹脂、キシレン樹脂などを挙げることができる。これらは、１種単独で使用されてもよいし、２種以上を併用されてもよい。本発明の効果を高めるために、粘着付与樹脂として脂環族飽和炭化水素系樹脂を使用することが好ましい。 <Tackifying resin>
The tackifying resin is not particularly limited, for example, rosin resin, terpene resin, aliphatic petroleum resin, alicyclic saturated hydrocarbon resin, aromatic petroleum resin, coumarone indene resin, styrene resin, Examples thereof include phenolic resins and xylene resins. These may be used alone or in combination of two or more. In order to enhance the effect of the present invention, it is preferable to use an alicyclic saturated hydrocarbon resin as the tackifying resin.
　粘着付与樹脂は、脂環族飽和炭化水素系樹脂とテルペン系樹脂またはスチレン系樹脂のいずれか一種以上とを含むことが好ましく、これらを全て含むことが好ましい。 The tackifying resin preferably contains an alicyclic saturated hydrocarbon resin and at least one of a terpene resin and a styrene resin, and preferably all of them.
　脂環族飽和炭化水素系樹脂は、軟化点が、９０～１４０℃であることが好ましく、１２０～１４０℃であることがより好ましい。 The alicyclic saturated hydrocarbon resin preferably has a softening point of 90 to 140°C, more preferably 120 to 140°C.
　テルペン系樹脂は、軟化点が、８０～１３０℃であることが好ましく、１１０～１２０℃であることがより好ましい。 The softening point of the terpene resin is preferably 80 to 130°C, more preferably 110 to 120°C.
　スチレン系樹脂は、軟化点が、１００～１４０℃であることが好ましく、１１０～１３０℃であることがより好ましい。 The styrene resin preferably has a softening point of 100 to 140°C, more preferably 110 to 130°C.
　粘着付与樹脂全体に対する脂環族飽和炭化水素系樹脂の含有量が、５０質量％以上であることが好ましく、５０～９５質量％（具体的には、５０～９３．９質量％）であることがより好ましく、６０～８０質量％であることが特に好ましい。 The content of the alicyclic saturated hydrocarbon resin with respect to the entire tackifying resin is preferably 50% by mass or more, and is 50 to 95% by mass (specifically, 50 to 93.9% by mass). Is more preferable, and 60 to 80% by mass is particularly preferable.
　粘着付与樹脂全体に対するテルペン系樹脂の含有量が、１５～５０質量％であることが好ましく、２５～４０質量％であることがより好ましい。 The content of the terpene resin with respect to the entire tackifying resin is preferably 15 to 50% by mass, more preferably 25 to 40% by mass.
　粘着付与樹脂全体に対するスチレン系樹脂の含有量が、１．０～１２．０質量％であることが好ましく、５．０～８．０質量％であることがより好ましい。 The content of the styrene resin with respect to the entire tackifying resin is preferably 1.0 to 12.0% by mass, and more preferably 5.0 to 8.0% by mass.
　粘着剤層１１４中の粘着付与樹脂の含有量は、３７．５～４４．５質量％であることが好ましく、３７．５～４０．０質量％であることがより好ましい。 The content of the tackifying resin in the pressure-sensitive adhesive layer 114 is preferably 37.5 to 44.5 mass%, more preferably 37.5 to 40.0 mass%.
＜その他の成分＞
　その他の成分としては、公知の添加剤、例えば、充填剤、酸化防止剤、着色剤、軟化剤、可塑剤、紫外線吸収剤、老化防止剤などが挙げられる。また、その他の成分として、スチレン系エラストマー以外の粘着成分（例えば、スチレン系エラストマー以外のゴム系粘着剤、アクリル系粘着剤、シリコーン系粘着剤等）を含んでいてもよい。 <Other ingredients>
Other components include known additives such as fillers, antioxidants, colorants, softeners, plasticizers, ultraviolet absorbers, and antioxidants. Further, as other components, an adhesive component other than the styrene elastomer (for example, a rubber adhesive other than the styrene elastomer, an acrylic adhesive, a silicone adhesive, etc.) may be included.
（充填剤）
　充填剤としては、例えば、炭酸カルシウム、亜鉛華（酸化亜鉛）、けい酸アルミニウム、シリカ、タルク、けい藻土、けい砂、軽石粉、スレート粉、雲母粉、アルミニウムゾル、アルミナホワイト、硫酸アルミニウム、硫酸バリウム、リトポン、硫酸カルシウム、二硫化モリブデン、グラファイト、ガラス繊維、ガラス球、単結晶チタン酸カリ、カーボン繊維、活性亜鉛華、炭酸亜鉛、酸化マグネシウム、塩基性炭酸マグネシウム、リサージ、鉛丹、鉛白、水酸化カルシウム、活性化水酸化カルシウム、酸化チタン等が挙げられる。これらは、１種単独で使用されてもよいし、２種以上を併用されてもよい。 (filler)
As the filler, for example, calcium carbonate, zinc white (zinc oxide), aluminum silicate, silica, talc, diatomaceous earth, silica sand, pumice powder, slate powder, mica powder, aluminum sol, alumina white, aluminum sulfate, Barium sulfate, lithopone, calcium sulfate, molybdenum disulfide, graphite, glass fiber, glass sphere, single crystal potassium titanate, carbon fiber, activated zinc white, zinc carbonate, magnesium oxide, basic magnesium carbonate, litharge, red lead, lead Examples include white, calcium hydroxide, activated calcium hydroxide, titanium oxide and the like. These may be used alone or in combination of two or more.
　自着性粘着テープにおいては、通常、充填剤を高配合とすることで、低タック性や高自着性を達成している。しかしながら、本発明においては、充填剤を低配合量としても、低タック性や高自着性を達成できる。 For self-adhesive pressure-sensitive adhesive tapes, low tackiness and high self-adhesion are usually achieved by using a high content of filler. However, in the present invention, low tackiness and high self-adhesiveness can be achieved even if the amount of the filler is low.
　具体的には、粘着剤層１１４中、充填剤の配合量を、２０質量％以下、１０質量％以下、５質量％以下、１質量％以下、０．１質量％以下、０質量％等とすることができる。また、充填剤を配合することで自着性粘着テープの性能を向上させることが可能であるが、その場合、粘着剤層１１４中、充填剤の配合量を、０．１質量％以上、１質量％以上、５質量％以上等とすればよい。 Specifically, the content of the filler in the pressure-sensitive adhesive layer 114 is 20 mass% or less, 10 mass% or less, 5 mass% or less, 1 mass% or less, 0.1 mass% or less, 0 mass% or the like. can do. Further, it is possible to improve the performance of the self-adhesive pressure-sensitive adhesive tape by blending a filler. In that case, the blending amount of the filler in the pressure-sensitive adhesive layer 114 is 0.1% by mass or more and 1% by mass or more. The amount may be 5% by mass or more and 5% by mass or more.
（酸化防止剤）
　酸化防止剤としては、例えば、ジブチルヒドロキシトルエン（ＢＨＴ）、ブチルヒドロキシアニソール（ＢＨＡ）、ビタミンＣ（アスコルビン酸）、ビタミンＥ（トコフェロール）、エリソルビン酸ナトリウム、没食子酸プロピル、亜硫酸ナトリウム、二酸化硫黄などが挙げられる。これらは、１種単独で使用されてもよいし、２種以上を併用されてもよい。 (Antioxidant)
Examples of the antioxidant include dibutylhydroxytoluene (BHT), butylhydroxyanisole (BHA), vitamin C (ascorbic acid), vitamin E (tocopherol), sodium erythorbate, propyl gallate, sodium sulfite, and sulfur dioxide. Can be mentioned. These may be used alone or in combination of two or more.
（着色剤）
　着色剤としては、無機系、有機系何れでもよく、これらは、目的とする発色となるように添加されればよい。これらは、１種単独で使用されてもよいし、２種以上を併用されてもよい。 (Colorant)
The colorant may be either an inorganic type or an organic type, and these may be added so as to achieve a desired color. These may be used alone or in combination of two or more.
（軟化剤）
　軟化剤としては、石油系軟化剤、植物系軟化剤、液状ゴム、液状粘着付与樹脂、合成可塑剤などが挙げられる。これらは、１種単独で使用されてもよいし、２種以上を併用されてもよい。 (Softener)
Examples of the softening agent include petroleum-based softening agents, plant-based softening agents, liquid rubber, liquid tackifying resins, synthetic plasticizers and the like. These may be used alone or in combination of two or more.
（紫外線吸収剤）
　紫外線吸収剤としては、サリチル酸誘導体、ベンゾフェノン系化合物、ベンゾトリアゾール系化合物、シアノアクリレート系化合物等がある。これらは、１種単独で使用されてもよいし、２種以上を併用されてもよい。 (UV absorber)
Examples of ultraviolet absorbers include salicylic acid derivatives, benzophenone compounds, benzotriazole compounds, and cyanoacrylate compounds. These may be used alone or in combination of two or more.
（老化防止剤）
　老化防止剤としては、ナフチルアミン系化合物、ジフェニルアミン系化合物、ｐ－フェニレンジアミン系化合物、その他のアミン系化合物、アミン化合物混合物、キノリン系化合物、ヒドロキノン誘導体、モノフェノール系化合物、ビスフェノール系化合物、トリスフェノール系化合物、ポリフェノール系化合物、チオビスフェノール系化合物等が挙げられる。これらは、１種単独で使用されてもよいし、２種以上を併用されてもよい。 (Anti-aging agent)
Antiaging agents include naphthylamine compounds, diphenylamine compounds, p-phenylenediamine compounds, other amine compounds, amine compound mixtures, quinoline compounds, hydroquinone derivatives, monophenol compounds, bisphenol compounds, trisphenol compounds. Examples thereof include compounds, polyphenol compounds, thiobisphenol compounds and the like. These may be used alone or in combination of two or more.
　粘着剤層１１４の厚みは、特に限定されないが、例えば、１０～４０μｍ、好ましくは２０～３０μｍとすればよい。 The thickness of the adhesive layer 114 is not particularly limited, but may be, for example, 10 to 40 μm, preferably 20 to 30 μm.
＜＜＜自着性粘着テープロール体の製造方法＞＞＞
　自着性粘着テープロール体１００の製造方法としては特に限定されず、公知の手法により製造可能である。自着性粘着テープロール体１００の製造方法の一例を以下に述べる。 <<<Method for producing self-adhesive pressure-sensitive adhesive tape roll body>>>
The method for producing the self-adhesive pressure-sensitive adhesive tape roll body 100 is not particularly limited and can be produced by a known method. An example of a method for manufacturing the self-adhesive pressure-sensitive adhesive tape roll body 100 will be described below.
　先ず、粘着剤層１１４を構成する原料に、必要に応じて有機溶媒等を加えて調製された粘着液と、少なくとも片面に微細凹凸構造が設けられたテープ状基材１１１と、を準備する。 First, an adhesive solution prepared by adding an organic solvent or the like to the raw materials forming the adhesive layer 114, and a tape-shaped substrate 111 having a fine concavo-convex structure provided on at least one surface are prepared.
　次に、テープ状基材１１１の微細凹凸構造が設けられた面とは反対の面に、印刷処理、プライマー処理を順次行い、インク層１１２およびプライマー層１１３を形成する。 Next, the ink layer 112 and the primer layer 113 are formed by sequentially performing a printing process and a primer process on the surface of the tape-shaped substrate 111 opposite to the surface on which the fine concavo-convex structure is provided.
　次に、プライマー層１１３の上に、アプリケーター等を用いて粘着液を塗布する。その後、例えば１００℃で３分間の乾燥を行って、プライマー層１１３上に粘着剤層１１４が設けられた粘着テープ部材１１０を得る。 Next, the adhesive liquid is applied onto the primer layer 113 using an applicator or the like. After that, for example, drying is performed at 100° C. for 3 minutes to obtain the adhesive tape member 110 in which the adhesive layer 114 is provided on the primer layer 113.
　最後に、この粘着テープ部材１１０を、軸芯１２０の外周に沿って巻回させていき、自着性粘着テープロール体１００を製造することができる。 Finally, the self-adhesive pressure-sensitive adhesive tape roll body 100 can be manufactured by winding the pressure-sensitive adhesive tape member 110 along the outer circumference of the shaft core 120.
＜＜＜自着性粘着テープロール体１００の用途＞＞＞
　自着性粘着テープロール体１００は、低いタック性、高い自着結束性、低い巻戻し性を有するため、種々の用途に使用することができる。例えば、生野菜類、生花類、書類、新聞、雑誌等の各種物品を結束するための粘着テープとして用いることができる。また、該粘着剤を布などを基材として含浸塗布、或いは両面にスプレー塗布等して乾燥、巻き取り、裁断してテープロール状にし、粘着包帯、スポーツ用固定テープ、スポーツ用滑り止めテープ等としても用いることができる。 <<<Applications of the self-adhesive pressure-sensitive adhesive tape roll body 100>>>
Since the self-adhesive pressure-sensitive adhesive tape roll body 100 has low tackiness, high self-adhesion binding property, and low rewinding property, it can be used for various purposes. For example, it can be used as an adhesive tape for binding various articles such as fresh vegetables, fresh flowers, documents, newspapers and magazines. Further, the adhesive is impregnated with a cloth or the like as a base material, or spray-coated on both sides to be dried, wound, cut into a tape roll, an adhesive bandage, a sports fixing tape, a sports non-slip tape, etc. Can also be used as
　自着性粘着テープロール体１００は、低いタック性を有するため野菜の成長を阻害しないため野菜の誘引用として好ましく使用することができる。更には、自着性粘着テープロール体１００は、高い自着結束性を有するため、高荷重が求められる結束用として好ましく使用することができる。例えば、野菜の誘引用とした中でも、トマト等の誘引用とすることが好ましい。キュウリやブドウ等の誘引を行う場合、自着性粘着テープの耐荷重として最大５００ｇ程度を想定すれば十分であり、従来の自着性粘着テープでも対応可能であった。しかしながら、トマト等の誘引においては、自着性粘着テープの耐荷重として最大１０００ｇ程度の高荷重を想定しなければならない場合があった。本発明に係る自着性粘着テープロール体１００は、低いタック性と、高い自着結束性を有するため、このような高荷重となる野菜の誘引にも十分に対応可能である。 Since the self-adhesive pressure-sensitive adhesive tape roll body 100 has low tackiness and does not hinder the growth of vegetables, it can be preferably used as a reference for vegetables. Furthermore, since the self-adhesive pressure-sensitive adhesive tape roll body 100 has a high self-adhesive binding property, it can be preferably used for binding which requires a high load. For example, among the vegetable citations, it is preferable to use the tomato citations. When attracting cucumbers or grapes, it is sufficient to assume a maximum load of about 500 g for the self-adhesive pressure-sensitive adhesive tape, and the conventional self-adhesive pressure-sensitive adhesive tape can be used. However, in attracting tomatoes and the like, it has sometimes been necessary to assume a high load of up to about 1000 g as the load resistance of the self-adhesive pressure-sensitive adhesive tape. Since the self-adhesive pressure-sensitive adhesive tape roll body 100 according to the present invention has low tackiness and high self-adhesion bundling property, it can sufficiently handle such a heavy vegetable attraction.
　また、自着性粘着テープロール体１００は、低タック性、低い巻戻し性を有するため、特許第６２２６８８０号等に開示された自着性粘着テープ専用の器具にセットする自着性粘着テープロール体として好ましく使用することができる。 Further, since the self-adhesive pressure-sensitive adhesive tape roll body 100 has low tackiness and low rewinding property, the self-adhesive pressure-sensitive adhesive tape roll set in the device for exclusive use of the self-adhesive pressure-sensitive adhesive tape disclosed in Japanese Patent No. 6226880 or the like. It can be preferably used as a body.
〔実施例１～１４：表１～表３〕
　エラストマー比率として「低スチレンＳＩＳ（スチレン含有量：１６質量％、日本ゼオン社製クインタック３４３３Ｎ）」２０重量部、「高スチレンＳＩＳ（スチレン含有量：２５質量％、旭化成社製アサプレンＡＴＮ５２１）」８０重量部で固定して、配合する粘着付与樹脂「テルペン樹脂（ヤスハラケミカル社製：ＹＳレジンＰＸ１１５０Ｎ）」、「脂環族飽和炭化水素樹脂（荒川化学工業社製：アルコンＰ１４０）」、「スチレン樹脂（三井化学社製：ＦＴＲ２１２０）」、「スチレン樹脂（三井化学社製：ＦＴＲ２１４０）」の各配合部数を変えたゴム系粘着剤を数種類用意した。 [Examples 1 to 14: Tables 1 to 3]
20 parts by weight of "low styrene SIS (styrene content: 16% by mass, Quintac 3433N manufactured by Nippon Zeon Co., Ltd.)" as an elastomer ratio, "high styrene SIS (styrene content: 25% by mass, Asaprene ATN521 manufactured by Asahi Kasei Co., Ltd.)" 80 A tackifying resin "Terpene resin (YS Hara Chemical Co., Ltd.: YS resin PX1150N)", "Alicyclic saturated hydrocarbon resin (Arakawa Chemical Industry Co., Ltd.: Alcon P140)", and "styrene resin ( Several types of rubber-based pressure-sensitive adhesives were prepared by changing the compounding number of each of "Mitsui Chemicals: FTR2120)" and "styrene resin (Mitsui Chemicals: FTR2140)".
　片面に微細凹凸構造（算術平均粗さ（Ｒａ）２．９μｍ、十点平均粗さ（Ｒｚ）２９．７μｍ、梨地加工面）を有する厚さ７０μｍのＣＰＰフィルムを準備した。ＣＰＰフィルムの微細凹凸構造を有する面の反対側面に、インク層（着色層）、プライマー層を順次形成した。プライマー層の上に粘着剤層の厚みが３０μｍになるように塗布して、幅１１ｍｍの粘着テープを作成した。粘着剤層にフイルムの梨地加工面が触れるように巻取り、幅１１ｍｍの粘着テープロール体を作成した。 A CPP film having a thickness of 70 μm having a fine concavo-convex structure (arithmetic mean roughness (Ra) 2.9 μm, ten-point mean roughness (Rz) 29.7 μm, satin processed surface) on one surface was prepared. An ink layer (coloring layer) and a primer layer were sequentially formed on the side opposite to the side having the fine concavo-convex structure of the CPP film. The pressure-sensitive adhesive layer was applied onto the primer layer so as to have a thickness of 30 μm to prepare a pressure-sensitive adhesive tape having a width of 11 mm. The adhesive layer was wound so that the satin-finished surface of the film was in contact with the adhesive layer to prepare an adhesive tape roll having a width of 11 mm.
〔実施例１５～１８、比較例１～２：表４〕
　以下の粘着テープロール体により、微細凹凸構造が粘着特性へ及ぼす影響を確認した。片面に各種条件の梨地加工面を有する厚さ７０μｍのＣＰＰフィルムを準備した。前記実施例１～１４と同様に粘着剤塗布面にインク層（着色層）、プライマー層を順次形成した。プライマー層の上に実施例６の粘着剤を粘着剤層の厚みが３０μｍになるように塗布して、幅１１ｍｍの粘着テープを作成した。粘着剤層にフイルムの梨地加工面が触れるように巻取り、幅１１ｍｍの粘着テープロール体を作成した。 [Examples 15-18, Comparative Examples 1-2: Table 4]
The effect of the fine concavo-convex structure on the adhesive property was confirmed by the following adhesive tape roll body. A CPP film having a thickness of 70 μm and having a satin-finished surface under various conditions on one surface was prepared. An ink layer (coloring layer) and a primer layer were sequentially formed on the pressure-sensitive adhesive coated surface in the same manner as in Examples 1 to 14. The pressure-sensitive adhesive of Example 6 was applied onto the primer layer so that the thickness of the pressure-sensitive adhesive layer was 30 μm to prepare a pressure-sensitive adhesive tape having a width of 11 mm. The adhesive layer was wound so that the satin-finished surface of the film was in contact with the adhesive layer to prepare an adhesive tape roll having a width of 11 mm.
〔プローブタック試験〕
　２３℃・５０％ＲＨの条件下、実施例及び比較例のテープ（幅１１ｍｍ）を試験片とし、ＡＳＴＭ　Ｄ２９７９に準じて、プローブタック試験を行った。具体的には、試験片をウエイトリングにたるみの無いようにはり付け、直径５ｍｍの円柱プローブを試験片の粘着面に０．９８±０．００１Ｎ／ｃｍ２の荷重を接触速さ１０±０．１ｍｍ／秒で、１．０±０．０１秒間接触させた後、接触速さと同じ速度でプローブを粘着面から垂直方向に引き剥がすのに要する力（Ｎ／５ｍｍφ）を測定した。 [Probe tack test]
A probe tack test was conducted under the conditions of 23° C. and 50% RH, using the tapes (width: 11 mm) of Examples and Comparative Examples as test pieces according to ASTM D2979. Specifically, the test piece was attached to the weight ring without slack, and a cylindrical probe having a diameter of 5 mm was applied to the adhesive surface of the test piece with a load of 0.98±0.001 N/cm 2 at a contact speed of 10±0. After contacting at 1.0 mm/sec for 1.0±0.01 seconds, the force (N/5 mmφ) required to peel the probe vertically from the adhesive surface at the same speed as the contact speed was measured.
〔自着保持力の試験（２３℃、５０％ＲＨ）〕
　以下の方法に従って、自着保持力の試験を行った。採取した試験片（幅１１ｍｍの粘着テープ）を粘着剤面を内側として、試験片が伸びたり、気泡が入らないように粘着剤面同士を貼り合わせる。貼り合わせ長さは１００ｍｍ以上とする。次に試験片の上から、２ｋｇ圧着ローラーを用い、圧着速度毎分約３００ｍｍで一往復圧着し、２０～４０分間放置する。その後、図３に示すように、試験片の一端を固定し、他方の一端に分銅を掛ける。分銅を掛ける前には、貼り合わせ部分を約５ｍｍ引き剥がし、境界部分をマジック等で印を付ける。規定時間後に分銅を掛けた状態で、ズレ距離（マジック等の印間）をノギスにより読み取る。 [Self-adhesion retention test (23°C, 50%RH)]
A self-adhesion retention test was conducted according to the following method. The collected test pieces (adhesive tape having a width of 11 mm) are adhered to each other so that the test pieces do not extend and bubbles do not enter with the adhesive surface inside. The bonding length is 100 mm or more. Next, using a 2 kg pressure roller, the test piece is pressure-bonded back and forth once at a pressure speed of about 300 mm/min and left for 20 to 40 minutes. After that, as shown in FIG. 3, one end of the test piece is fixed, and a weight is applied to the other end. Before applying the weight, the bonded part is peeled off by about 5 mm, and the boundary part is marked with a marker or the like. After the specified time, with a weight applied, read the deviation distance (between marks such as magic) with a caliper.
〔低速巻戻し力の試験（２３℃、５０％ＲＨ）〕
　２３℃・５０％ＲＨの条件下、ＪＩＳ　Ｚ　０２３７―２００９に準じて、低速巻戻し力の試験を行った。最適な低速巻戻し力は０．０５～０．７０Ｎ／１１ｍｍである。低速巻戻し力が上限値を超えると、テープ引出しに負荷が掛かり、作業し難くなる。より具体的には、特許第６２２６８８０号等に開示された自着性粘着テープ専用の結束機を使用した場合に不具合が生じ易い。一方、低速巻戻し力が下限値を割ると、テープを引出す際に、不用意に引出されてテープ本体が解けてしまうことがある。 [Low-speed unwinding force test (23°C, 50%RH)]
Under the conditions of 23° C. and 50% RH, the low speed rewinding force was tested according to JIS Z 0237-2009. The optimum low speed rewinding force is 0.05 to 0.70 N/11 mm. When the low-speed rewinding force exceeds the upper limit value, a load is applied to the tape pull-out, making it difficult to work. More specifically, problems are likely to occur when the binding machine for the self-adhesive adhesive tape disclosed in Japanese Patent No. 6226880 is used. On the other hand, when the low-speed rewinding force is below the lower limit, when the tape is pulled out, it may be pulled out carelessly and the tape body may be loosened.
〔印刷適性：印刷面外観〕
　目視で次の基準で判定する。
○：ムラがなく優美な外観を有する
△：目立つムラではないが、均一な外観にやや欠ける
×：ムラがあり均一な外観に欠ける [Printability: printed surface appearance]
Visually judge according to the following criteria.
◯: There is no unevenness and an elegant appearance. Δ: There is no noticeable unevenness, but there is some lack of uniform appearance. X: There is unevenness and lack of uniform appearance.
（結果）
　上記各試験の結果を表１～表４に記載した。 (result)
The results of each of the above tests are shown in Tables 1 to 4.
（考察）
　表１～表３に基づき、配合する粘着付与樹脂「テルペン樹脂（ヤスハラケミカル社製：ＹＳレジンＰＸ１１５０Ｎ）」、「脂環族飽和炭化水素樹脂（荒川化学工業社製：アルコンＰ１４０）」、「スチレン樹脂（三井化学社製：ＦＴＲ２１２０）」、「スチレン樹脂（三井化学社製：ＦＴＲ２１４０）」の最適な配合部数を確認した。その中で、表２の実施例６が最も目標値に近い特性を有するものであった。また、スチレン樹脂に関して、軟化点の高いＦＴＲ２１４０を配合した系は、ＦＴＲ２１２０を配合した系より全体的にやや劣る傾向となった。 (Discussion)
Based on Tables 1 to 3, the tackifying resin to be blended "terpene resin (Yasuhara Chemical Co., Ltd.: YS resin PX1150N)", "alicyclic saturated hydrocarbon resin (Arakawa Chemical Industry Co., Ltd.: Alcon P140)", "styrene resin" (Mitsui Chemicals Co., Ltd.: FTR2120)” and “Styrene resin (Mitsui Chemicals Co., Ltd.: FTR2140)” were confirmed to have optimum compounding parts. Among them, Example 6 in Table 2 had the characteristics closest to the target value. Further, regarding the styrene resin, the system in which FTR2140 having a high softening point was blended tended to be slightly inferior to the system in which FTR2120 was blended as a whole.
　表４によれば、微細凹凸構造の粗さが所定範囲でない粘着テープを使用した場合、発明の効果を奏しないことが確認できる。また、実施例１６が最も目標に近い特性を有するものであった。 According to Table 4, it can be confirmed that the effect of the invention is not exhibited when the adhesive tape having the roughness of the fine concavo-convex structure is not within the predetermined range. In addition, Example 16 had the characteristics closest to the target.
　なお、実施例１～１４に関しても低速巻戻し力の測定を行ったところ、実施例１５～１８同様に最適な低速巻戻し力の範囲となることが確認できた。 Also, when the low speed rewinding force was measured for Examples 1 to 14, it was confirmed that it was within the optimum low speed rewinding force range as in Examples 15 to 18.
　更に、粘着剤層中の高スチレンＳＩＳの含有量（Ｅｈ）と低スチレンＳＩＳの含有量（Ｅｌ）との関係について確認した。具体的には、Ｅｌ：Ｅｈ＝１００：０、８０：２０、６０：４０、４０：６０、２０：８０、０：１００とし検討を行った。その結果、Ｅｌ：Ｅｈ＝６０：４０（Ｅｌ／Ｅｈ＝１．５）、４０：６０（Ｅｌ／Ｅｈ＝０．６７）、２０：８０（Ｅｌ／Ｅｈ＝０．２５）、０：１００（Ｅｌ／Ｅｈ＝０）とした場合に、プローブタックおよび自着保持力に特に優れる傾向があることが確認された。 Furthermore, the relationship between the high styrene SIS content (Eh) and the low styrene SIS content (El) in the adhesive layer was confirmed. Specifically, the study was conducted with El:Eh=100:0, 80:20, 60:40, 40:60, 20:80, 0:100. As a result, El:Eh=60:40 (El/Eh=1.5), 40:60 (El/Eh=0.67), 20:80 (El/Eh=0.25), 0:100( It was confirmed that the probe tack and the self-holding force tended to be particularly excellent when El/Eh=0).
Figure JPOXMLDOC01-appb-T000001
Figure JPOXMLDOC01-appb-T000001
Figure JPOXMLDOC01-appb-T000002
Figure JPOXMLDOC01-appb-T000002
Figure JPOXMLDOC01-appb-T000003
Figure JPOXMLDOC01-appb-T000003
Figure JPOXMLDOC01-appb-T000004
Figure JPOXMLDOC01-appb-T000004
１００　　自着性粘着テープロール体
１１０　　粘着テープ部材
１１１　　テープ状基材
１１１a　テープ状基材表面
１１２　　インク層（着色層）
１１３　　プライマー層
１１４　　粘着剤層
１１４a　粘着剤層表面
１２０　　軸芯

  100 self-adhesive adhesive tape roll body 110 adhesive tape member 111 tape-shaped substrate 111a tape-shaped substrate surface 112 ink layer (colored layer)
113 Primer layer 114 Adhesive layer 114a Adhesive layer surface 120 Shaft core

Claims (7)

  1. 　テープ状基材と、テープ状基材の片面に直接又は他の層を介して設けられた粘着剤層と、を有する粘着テープ部材をロール状に巻回した自着性粘着テープロール体であって、
    　前記粘着剤層は、スチレン系エラストマーと、粘着付与樹脂と、を含有し、
    　前記粘着付与樹脂は、脂環族飽和炭化水素系樹脂を含有し、
    　前記テープ状基材は、前記粘着剤層が設けられた面の反対側の面に、ＪＩＳ　Ｂ　０６０１－２０１３に基づく表面粗さが、算術平均粗さ（Ｒａ）で０．５～５．０μｍであると共に、十点平均粗さ（Ｒｚ）で１０～５０μｍである微細凹凸構造を有する
    ことを特徴とする、自着性粘着テープロール体。     A self-adhesive pressure-sensitive adhesive tape roll body obtained by winding a pressure-sensitive adhesive tape member having a tape-shaped base material and an adhesive layer provided on one surface of the tape-shaped base material directly or via another layer, in a roll shape. hand,
    The pressure-sensitive adhesive layer contains a styrene elastomer and a tackifying resin,
    The tackifying resin contains an alicyclic saturated hydrocarbon resin,
    The tape-shaped base material has a surface roughness based on JIS B 0601-2013 of 0.5-5.0 μm in terms of arithmetic average roughness (Ra) on the surface opposite to the surface on which the pressure-sensitive adhesive layer is provided. And a self-adhesive pressure-sensitive adhesive tape roll body having a fine uneven structure having a ten-point average roughness (Rz) of 10 to 50 μm.
  2. 　前記微細凹凸構造は、ＪＩＳ　Ｂ　０６０１－２０１３に基づく表面粗さが、算術平均粗さ（Ｒａ）で１．０～４．０μｍであると共に、十点平均粗さ（Ｒｚ）で２０～４０μｍである、請求項１に記載の自着性粘着テープロール体。 The fine uneven structure has a surface roughness based on JIS B 0601-2013 of 1.0 to 4.0 μm in terms of arithmetic average roughness (Ra) and 20 to 40 μm in terms of ten-point average roughness (Rz). The self-adhesive pressure-sensitive adhesive tape roll body according to claim 1.
  3. 　前記粘着剤層は、スチレン含有量が２０質量％超である高スチレン含有エラストマーと、スチレン含有量が２０質量％以下である低スチレン含有エラストマーと、を含有する、請求項１又は２に記載の自着性粘着テープロール体。 The pressure-sensitive adhesive layer contains a high styrene-containing elastomer having a styrene content of more than 20% by mass, and a low styrene-containing elastomer having a styrene content of 20% by mass or less. Self-adhesive roll of adhesive tape.
  4. 　前記粘着剤層中の、スチレン含有量が２０質量％以下である低スチレン含有エラストマーの質量（Ｅｌ）とスチレン含有量が２０質量％超である高スチレン含有エラストマーの質量（Ｅｈ）との比（Ｅｌ／Ｅｈ）が、２．０以下である、請求項１～３のいずれかに記載の自着性粘着テープロール体。 Ratio of the mass (E1) of the low styrene-containing elastomer having a styrene content of 20% by mass or less and the mass (Eh) of the high styrene-containing elastomer having a styrene content of more than 20% by mass in the pressure-sensitive adhesive layer ( The self-adhesive pressure-sensitive adhesive tape roll body according to any one of claims 1 to 3, wherein El/Eh) is 2.0 or less.
  5. 　前記粘着剤層中の粘着付与樹脂全体に対して、脂環族飽和炭化水素系樹脂の占める割合が５０～９５質量％である、請求項１～４のいずれかに記載の自着性粘着テープロール体。 The self-adhesive pressure-sensitive adhesive tape according to any one of claims 1 to 4, wherein the ratio of the alicyclic saturated hydrocarbon resin to the whole tackifying resin in the pressure-sensitive adhesive layer is 50 to 95% by mass. Roll body.
  6. 　前記粘着テープ部材が、前記テープ状基材と、インク層と、プライマー層と、前記粘着剤層と、がこの順番で積層された積層体である、請求項１～５のいずれかに記載の自着性粘着テープロール体。 6. The adhesive tape member according to claim 1, wherein the adhesive tape member is a laminate in which the tape-shaped substrate, the ink layer, the primer layer, and the adhesive layer are laminated in this order. Self-adhesive roll of adhesive tape.
  7. 　植物誘引用である、請求項１～６のいずれかに記載の自着性粘着テープロール体。

          The self-adhesive pressure-sensitive adhesive tape roll body according to any one of claims 1 to 6, which is a plant invitation.

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WO2002020366A1 (en) * 2000-09-04 2002-03-14 Asahi Kasei Kabushiki Kaisha Adhesive wrap film
JP2010076287A (en) * 2008-09-26 2010-04-08 Hitachi Chem Co Ltd Adhesive film for optical sheet protection and its manufacturing method
JP2011116809A (en) * 2009-12-01 2011-06-16 Nitto Denko Corp Surface protection sheet
WO2011122287A1 (en) * 2010-03-31 2011-10-06 東レフィルム加工株式会社 Surface protection film
JP2013227434A (en) * 2012-04-26 2013-11-07 Nitto Denko Corp Adhesive tape
WO2015076332A1 (en) * 2013-11-21 2015-05-28 出光ユニテック株式会社 Surface-protecting film
JP2017179228A (en) * 2016-03-31 2017-10-05 積水化学工業株式会社 Adhesive tape

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Publication number Priority date Publication date Assignee Title
JP6317728B2 (en) 2013-02-14 2018-04-25 ニチバン株式会社 Self-adhesive binding tape

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Publication number Priority date Publication date Assignee Title
WO2002020366A1 (en) * 2000-09-04 2002-03-14 Asahi Kasei Kabushiki Kaisha Adhesive wrap film
JP2010076287A (en) * 2008-09-26 2010-04-08 Hitachi Chem Co Ltd Adhesive film for optical sheet protection and its manufacturing method
JP2011116809A (en) * 2009-12-01 2011-06-16 Nitto Denko Corp Surface protection sheet
WO2011122287A1 (en) * 2010-03-31 2011-10-06 東レフィルム加工株式会社 Surface protection film
JP2013227434A (en) * 2012-04-26 2013-11-07 Nitto Denko Corp Adhesive tape
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JP2017179228A (en) * 2016-03-31 2017-10-05 積水化学工業株式会社 Adhesive tape

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