JP2691994B2 - Pressure-sensitive adhesive sheet for cutting machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to an adhesive sheet used for decoration or display, and more specifically, a base material layer of an adhesive sheet is cut with a cutting machine to cut letters, cut pictures, and the like. The present invention relates to a pressure-sensitive adhesive sheet for a cutting machine, which is excellent in workability when the cutting pattern is prepared and when the prepared pattern is stuck.

[Problems to be solved by conventional technology and invention]

Conventionally, as an adhesive sheet, one in which a base material layer is laminated on a peelable support via an adhesive layer is known, and the adhesive sheet is prepared by cutting the base material layer into a predetermined pattern,
The base material layer having the pattern is attached to the surface of an adherend, for example, a wall surface or the like, and used for decoration or display.

As the adhesive sheet, a base layer made of a colored film such as a vinyl chloride film, an acrylic film, or a fluororesin film is used, and a peelable support such as release paper is provided on the base layer via an adhesive layer. The one laminated on the body is widely used.

When creating cutting patterns such as cut letters and cutouts as described above, creation by computer-controlled cutting machines has become widespread in recent years.

When creating a cutting pattern with a computer-controlled cutting machine as described above, the cutter moves quickly and the cut substrate layer rises up from the peeling layer of the peeling support, which causes the cutting of an accurate pattern. You may not be able to Therefore, it is considered that the base material layer enhances the adhesive force between the adhesive layer and the release layer to prevent the base material layer from curling up.

However, if the adhesive strength between the two is increased, it becomes difficult to remove unnecessary parts after cutting (so-called scrap removal, which is usually manual work), resulting in a problem that work efficiency is reduced.

In addition, only the necessary portion (base material layer having a predetermined cutting pattern) after cutting is used for another adhesive film (generally called an application sheet (or tape)).
In the case of adopting a method in which the adhesive layer is adhered to the surface of the adherend with the adhesive layer, the base material layer having the predetermined pattern is also adhered to the adherend surface. Since it is difficult to peel off the base material layer from the peeling support, there arises a problem that work efficiency is similarly reduced.

Therefore, an object of the present invention is to cut a base material layer in an accurate pattern because a part of the base material layer does not curl up even if a cutting machine with a fast cutting operation is used, and after cutting, Another object of the present invention is to provide a pressure-sensitive adhesive sheet for a cutting machine, which has excellent workability and can easily and accurately peel off the base material layer from the releasable support.

[Means for solving the problem]

As a result of various studies, the inventors of the present invention have found that the peeling resistance between the pressure-sensitive adhesive layer of the base material layer and the peeling layer of the peelable support, and that the dynamic peeling resistance under two specific conditions falls within a specific range. It has been found that the above-mentioned object can be achieved by setting the value within the range.

The present invention has been made based on the above findings, and is formed by laminating a base material layer having a pressure-sensitive adhesive layer on the release layer of a releasable support having a release layer with the pressure-sensitive adhesive layer interposed therebetween. A pressure-sensitive adhesive sheet for a cutting machine, wherein a dynamic peel resistance between the pressure-sensitive adhesive layer of the base material layer and the release layer of the releasable support is 8 to 40 g / min at a tensile speed of 0.3 m / min. The present invention provides a pressure-sensitive adhesive sheet for a cutting machine, which is 25 inches to 100 grams / inch at a pulling speed of 9 m / min.

Hereinafter, the pressure-sensitive adhesive sheet for a cutting machine of the present invention will be described in detail.

In the pressure-sensitive adhesive sheet for a cutting machine of the present invention, a base layer having a pressure-sensitive adhesive layer is laminated on the release layer of a releasable support having a release layer via the pressure-sensitive adhesive layer. It has a structure.

The pressure-sensitive adhesive sheet for a cutting machine has a dynamic peel resistance between the pressure-sensitive adhesive layer of the base material layer and the release layer of the releasable support of 8 to 4 when the tensile speed is 0.3 m / min.
It is characterized in that it is configured to be 25 to 100 g / inch at a pulling speed of 9 m / min at 0 g / inch.

As a result, the pressure-sensitive adhesive sheet for a cutting machine of the present invention is capable of cutting operation at high speed, for example,
Using a computer controlled cutting machine,
Even when the base material layer is cut into a predetermined pattern, corners and minute portions do not curl up, so that a fine cutting pattern can be accurately cut. Furthermore, since the desired base material layer portion after cutting can be easily and accurately peeled off from the releasable support, dust removal work for removing unnecessary portions of the base material layer or after removing the unnecessary portions is performed. It is possible to efficiently perform the spotting work on the application sheet of a necessary portion.

Incidentally, the measurement of the above-mentioned dynamic peel resistance, specifically, a pressure-sensitive adhesive sheet for a cutting machine is cut into a size of 25.4 mm × 150 mm to prepare a test piece, and a peelable support of the test piece. Was fixed on a smooth panel using a double-sided tape, and the terminal base material layer and the accompanying pressure-sensitive adhesive layer peeled off from the peeling layer were fixed in the predetermined direction in the direction of 180 ° with respect to the peelable support. It was moved and peeled at a speed, and the tensile force at that time was measured.

Next, the pressure-sensitive adhesive sheet for a cutting machine of the present invention will be described in more detail.

The substrate layer in the present invention is preferably a resin film,
Paper such as Japanese paper, foreign paper, natural paper, synthetic paper, etc., synthetic cloth or natural cloth such as hemp, silk, etc., aluminum sheet, copper sheet, metal sheet such as synthetic metal sheet, etc., and particularly preferably resin film Is.

As the synthetic resin forming the resin film, which is a preferred embodiment, polyvinyl chloride-based, polystyrene-based, low-density polyethylene-based, polypropylene-based, metal (meth) acrylic resin-based, polycarbonate-based, cotton-like polyester-based and the like have good transparency. A suitable synthetic resin is suitable. Of these, vinyl chloride resins and metal (meth) acrylic resins are preferable, and among these, polyvinyl chloride resins are most preferable.

Examples of the vinyl chloride-based resin include, in addition to vinyl chloride homopolymer, vinyl chloride copolymers containing about 30% by weight or less of a copolymerization component and blends of vinyl chloride homopolymers and vinyl chloride copolymers. Available. Examples of such a copolymerization component include monomers such as ethylene, propylene, butene, acrylic acid ester, vinylidene chloride, vinyl ester, vinyl ether and vinyl acetate.

Further, a vinyl chloride resin blend obtained by blending the vinyl chloride resin with a polymer other than the vinyl chloride resin at a ratio of about 30% by weight or less can be used.

Further, the semi-rigid vinyl chloride resin molding composition disclosed in JP-A-60-4543 can be used. That is, the vinyl chloride resin paste composition is a vinyl chloride paste range composition comprising the following (A) and / or (B) and / or (C).

(A) 0 to about 20% by weight, preferably 0 to about 10% by weight,
More preferably, (B) the number average molecular weight (Mn) is about 1500 or more, preferably about 1500 to 6000, based on 100 parts by weight of the vinyl chloride paste range containing 0 to about 6% by weight of the copolymer component. Preferably about 1500-4000, more preferably about 2000-4000 liquid polyester-based plasticizer is about 10
To about 80 parts by weight, preferably about 20 to 60 parts by weight, more preferably about 25 to 50 parts by weight and 0 to about 10 parts by weight, preferably 0 to about 5 parts by weight of another plasticizer for vinyl chloride resin, And (C) a low molecular weight acrylic or methacrylic resin having a number average molecular weight (Mn) of about 1500 to about 50,000, preferably about 2,000 to 40,000, more preferably about 2,500 to 30,000 and solid at 23 ° C. (B). About 0.2 to about 200 based on total plasticizer
Also preferred are compositions comprising by weight, preferably about 10-150% by weight, more preferably about 20-about 100% by weight.

When the base material layer is formed of a resin, a stabilizer is added to the base material layer,
Additives such as anti-oxidants, lubricants, plasticizers, UV absorbers and the like can be included. The amount of these additives used can be appropriately selected, but is about 0.5 based on 100 parts by weight of the resin component.
To about 10 parts by weight stabilizer, about 0.01 to about 2 parts by weight antioxidant, about 0.2 to about 10 parts by weight lubricant, about 1 to about 60 parts by weight plasticizer, about 0.05 to 5 parts by weight UV light. The amount of the absorbent used may be exemplified.

Specific examples of these additives include, for example, calcium-zinc-based stabilizer (Katsuda Kako Co., Ltd., CZ-19J), tin-based stabilizer (Katsuda Kako Co., Ltd., TM181FSJ), barium-zinc-based stabilizer ( Stabilizers such as Katsuta Kako Co., Ltd., BZ100J) and lead stearate stabilizer (Kousho Co., Ltd., Pb-St); for example, monophenolic antioxidants (Yoshitomi Pharmaceutical Co., Ltd.,
Antioxidants such as Yoshinox BHT), amine antioxidants (Yoshitomi Pharmaceutical Co., Ltd., Yoshinox EQ), polyphenolic antioxidants (Ciba-Gaigi, Irganox 1010); for example, hydrocarbon lubricants (Allied Chemical) , Ac
-6A), a fatty acid-based lubricant (Kawaken Fine Chemicals, F-
3), fatty acid ester lubricant (made by Hoechst Japan, Hoechst waxop), fatty alcohol lubricant (made by Kao Soap,
Lubricants such as alcohol 86); for example, phthalic acid type plasticizers (manufactured by Sanken Kako Co., Ltd., DOP), epoxy type plasticizers (Adeka Argus Co., Ltd., ADEKA Cider O-130p), adipic acid ester type plasticizers. (DO made by Sekisui Chemical Co., Ltd.
A), plasticizers such as polyester-based plasticizers (Rohm and Haas, Paraflex G25); for example, benzotriazole-based UV absorbers (Ciba-Geigy, Tinuvin P, Tinuvin 326, 327), hydrocosibenzophenone-based UV absorbers. Examples thereof include UV absorbers such as agents (Asia Cyanamid, Siasorb UV-9).

As the base material layer made of the synthetic resin, preferably a casting film is used, and a solution containing the resin component is
A method known per se, for example, a casting method, can be formed by a casting method film forming means such as a coater method,
Preferably, it is used in the form of an unstretched film. Examples of the solvent used at that time include tetrahydrofuran, methyl ethyl ketone, methylene chloride, dimethylformamide, alcohol and the like.

The yield stress of the substrate layer thus obtained is preferably 1 to
5 kg / mm ^2, particularly preferably 1.2~4.5kg / mm ^2, more preferably from 1.5~4kg / mm ^2.

The pressure-sensitive adhesive layer in the present invention can form a pressure-sensitive adhesive of a type generally referred to as a pressure-sensitive adhesive that exhibits tackiness at room temperature. Examples of such pressure-sensitive adhesives include rubber-based adhesives, acrylic-based adhesives, vinyl acetate-based adhesives, urethane-based adhesives, silicone-based adhesives, other adhesives, and appropriate mixtures thereof. An adhesive may be used.

Examples of the rubber-based adhesive include natural rubber, isobutylene rubber, styrene butadiene rubber, styrene butanediene block copolymer, styrene isoprene block copolymer, butyl rubber, polyisobutylene, silicone rubber, polyvinyl isobutyl ether, chloroprene rubber, Examples thereof include those made of nitrile rubber and the like, mixtures thereof, and those containing at least one of them as a main component. Those having a slight cross-linking structure between the molecules can also be preferably used.

Examples of acrylic adhesives and vinyl acetate adhesives include adhesive layers formed of solvent-type adhesives containing an unsaturated carboxylic acid ester copolymer as a main component, and particularly unsaturated carboxylic acid ester monmers. A glass transition temperature (Tg) derived from 99.9 to 85 parts by weight and a vinyl monomer having a crosslinkable functional group of 0.1 to 15 parts by weight is −20 ° C. or less 100 parts by weight of a copolymer, 70 to 400 parts by weight of a solvent, and An adhesive layer formed of a solvent type adhesive consisting of 0.01 to 20 parts by weight of a crosslinking agent capable of crosslinking with the above-mentioned crosslinkable functional group is preferable.

Examples of the unsaturated carboxylic acid ester monomer for obtaining the copolymer constituting the adhesive include methyl (meth) acrylate, ethyl (meth) acrylate, butyl (meth) acrylate, and pentyl (meth) acrylate. And (meth) acrylate monomers such as hexyl (meth) acrylate, heptyl (meth) acrylate and octyl (meth) acrylate, and monomers of vinyl esters such as vinyl acetate and vinyl propionate.

Further, as the vinyl monomer having a crosslinkable functional group for obtaining the above copolymer, a vinyl monomer having a carboxyl group such as acrylic acid, methacrylic acid and itaconic acid, and a hydroxymethyl ester of (meth) acrylic acid, hydroxy Examples thereof include vinyl monomers having a hydroxyl group such as ethyl ester, hydroxypropyl ester, hydroxybutyl ester, hydroxypentyl ester and hydroxyhexyl ester, and also vinyl monomers having an epoxy group and an amino group.

Further, as the solvent, ethyl acetate, toluene, acetone, isopropylalur and the like are preferable.

Examples of the cross-linking agent include organic polyisocyanate compounds, and specific examples thereof include P-phenylene diisocyanate, 4,4'-diphenylmethane diisocyanate, 2,4-toluylene diisocyanate and 2,6- Toluylene diisocyanate, xylylene diisocyanate, triisocyanate, naphthalene 1,5
So-called aromatic polyisocyanate such as diisocyanate, pentamethylene diisocyanate, hexamethylene diisocyanate, heptamethylene diisocyanate,
4,4'-dicyclohexylmethane diisocyanate.

The glass transition temperature Tg of the copolymer is a value determined by the following measuring method.

Approximately 10 mg of the resin solution sample is weighed into the cell and dried at 100 ° C. for 2 hours to be used as a measurement sample. Shimadzu DT-30 Differential Scanning Calorimete
Using r), measure and determine from -80 ℃ at a temperature rise temperature of 20 ℃ / min. Nitrogen gas is used as the carrier gas at a flow rate of 20 cc / min for measurement.

Examples of the urethane adhesive include triphenylmethane-p, p ′, p ″ -triisocyanate, hexamethylene diisocyanate, diphenylmethane-4,
4'-diisocyanate, a compound having an active hydrogen atom with an isocyanate such as toluene diisocyanate, for example, a polymer compound produced by a reaction with a polyester having an active hydrogen atom, polyether glycol, polyacrylate, polyamide, etc., Examples thereof include those containing, as a main component, a mixture thereof or at least one of them.

Further, examples of the silicon-based adhesive include dimethylpolysiloxane, diphenylpolysiloxane, and linear or krafted compounds containing organopolysiloxane as a main component.

The releasable support in the invention is particularly limited as long as it has a supporting force and has a release layer capable of releasing the pressure-sensitive adhesive layer of the base material layer on the surface. Not, for example, non-woven fabric, synthetic fiber, net, paper,
Preferable examples include various sheet-shaped bodies such as a plastic film or a laminate of a polyolefin film such as a polyethylene film and paper, and the like, coated with a material for forming a release layer. Then, as the material for forming the release layer, for example, silicone resin, polyethylene, polypropylene, polyester, vinyl chloride, vinylidene chloride, tetrafluoroethylene polymer,
Vinyl fluoride, vinylidene fluoride, aminoaldehyde, shellac, wax paraffins, chromium chloride stearate, alkyl acid phosphates, titanium dioxide and nitrocellulose, fluorocarbons, perfluorocarbon oxyacids, polyptadiene and acrylonitrile copolymers, alginic acid Soda and hydrous sodium silicate and clay blend, polyvinyl butyral and hydrogenated castor oil and stearic acid blend, vinylpyrrolidone and vinyl stearate copolymer, polyvinyl alcohol and vinyl stearate copolymer, vinyl stearate and maleic anhydride. And vinyl acetate copolymers, higher alkylamines, polyvinyl octadecyl urethane, acrylic acid and octadecyl acrylate copolymers, polyvinyl alcohol and N Kuta decyl carbamate copolymer,
Examples thereof include polyvinyl alcohol and N dihydroperfluoroalkyl isocyanate copolymer, and carbamic acid and polyvinyl alcohol. And, as particularly preferable examples of the peelable support having a release layer, a silicone resin-coated release paper or polyester film,
Examples thereof include polypropylene terpolymer coated paper.

The pressure-sensitive adhesive sheet for the present cutting machine can be manufactured, for example, as follows, although not limited thereto.

First, the pressure-sensitive adhesive layer on the release layer on the release support having the release layer is dried to form a thickness of about 35 μm. After that, the pressure-sensitive adhesive sheet is manufactured by pressure-bonding and laminating the base material on the pressure-sensitive adhesive layer.

〔Example〕

Next, examples performed to clarify the effects of the present invention will be described together with comparative examples.

First, various evaluation tests and evaluation methods performed in Examples and the like will be described.

(1) Dynamic Peeling Resistance An adhesive sheet was cut into a size of 25.4 mm × 150 mm to prepare a test piece, the peelable support of the test piece was fixed on a panel using a double-sided tape, and the peeling layer was removed. The peeled end base material layer and the adhesive layer are moved / peeled at two speeds of 0.3 m / min and 9 m / min in the direction of 180 ° with respect to the peelable support, and the tensile force at that time is applied. It was measured.

 The following device was used for the measurement.

0.3m / min measurement ... Strograph M-50 type (Toyo Seiki Seisakusho Co., Ltd.) 9m / min measurement: High-speed peel tester (Toyo Seiki Seisakusho) (2) Cutting property Cutting machine D Using a -860 series (manufactured by Signum Co., Ltd.), the characters of a 15 mm square Gothic body "ABCDEF" were cut, and the appearance after cutting was observed. The film (base material layer) was evaluated by the degree of floating, turning over, and the positional deviation between the starting point and the ending point of each character. The evaluation was carried out on the following five levels.

5; The film does not float or turn over, and the cutting start and end points are the same.

4; The film is slightly lifted or curled up due to an acute angle cut part or a circle with a small radius, but the starting point and the end point of cutting are the same.

3; It floats and turns over, but the cutting start and end points are the same.

2; Floating on the whole, there is a curl, and the starting point and the end point of cutting are slightly deviated.

1; Floating and sharp turning, the starting point and the end point of cutting are clearly deviated.

(3) Dust removal property Using a cutting machine D-860 series (manufactured by Signum Co., Ltd.), a square Gothic "Nippon Carbide Industry"
The letters "C" were cut, and then scraps were removed (work to remove unnecessary parts). One end of the unnecessary portion was pulled at a speed of about 5 m / min so that it would not be torn at a stretch, and the following 5 grades were evaluated from the extent of the remaining character pattern.

5; All character patterns remain even if the size of one character is 15 mm square.

4; If the size of one character is 30 mm square, all character patterns remain.

3; When the size of one character is 30 mm square, the dakuten pattern does not remain, but other character patterns remain.

2; If the size of one character is 30 mm square, the character pattern is approx.
50% remains.

1; Even if the size of one character is 30 mm square, almost no character pattern remains.

(4) Transfer tape Cutting machine D-860 series (manufactured by Cygnum Co., Ltd.) is used to cut 15 mm square Gothic "ABCDEF" characters, remove the residue, and apply the remaining character pattern to the application tape. It was transferred to a (sheet) and its performance was evaluated. As the application tape, Y-37PH (trade name) manufactured by San-A Chemical Co., Ltd. is used, and the application tape is pasted onto the cut character pattern and sufficiently pressed with a squeegee. After 10 minutes, the application tape is peeled off. By peeling it off from the support, it was evaluated in the following 5 grades.

5; When the peelable support is fixed and the application tape is peeled off, even when the application tape is pulled in a direction of 180 ° with respect to the support, all six characters are transferred to the application tape.

4; When the peelable support is fixed and the application tape is peeled off, if the application tape is pulled in the direction of 90 °, all six characters are transferred to the application tape.

3; When the application tape is fixed and the peelable support is pulled by 180 ° with respect to the tape to be peeled off, all six characters are transferred to the application tape.

2; When the application tape is fixed and the peelable support is pulled by 180 ° with respect to the tape to peel off, 6
Transfer 1 to 5 characters.

1; When the application tape is fixed and the peelable support is pulled by 180 ° from the tape and peeled off, it does not transfer at all.

The above evaluation was repeated several times, and when the same evaluation was repeated three times, the situation was regarded as the actual evaluation.

(5) Comprehensive cutting suitability evaluation Comprehensively evaluated suitability for a cutting machine under computer control based on the evaluations of cutting properties, scraping properties and transfer properties described in (2) to (4) above. The comprehensive evaluation was performed according to the following three steps.

◯: All evaluations (cutting, scrap removal, transferability) are 4 or more. Suitable for cutting machines.

Δ: 3 or more in all evaluations. It can be used as a cutting machine, but its suitability is not sufficient.

X: There is a rating of 2 or less in the cutting property, scraping property, and transfer property. Not suitable for cutting machines,
Sometimes it is difficult to use.

(6) Adhesive strength After cutting the adhesive sheet into 25.4 mm x 150 mm and peeling the base material layer from the releasable support, the base material layer is alkyd melamine coated plate using a squeegee (Japan Test Panel Industry Co., Ltd.). Manufactured). After leaving this at room temperature for 72 hours, Strograph M-50 (manufactured by Toyo Seiki Co., Ltd.)
Was used to peel off the substrate layer in the direction of 180 ° with respect to the coated plate, and the adhesive strength was measured. However, the pulling speed is 0.3 m /
Went in minutes.

(7) Adhesion after immersion in warm water The adhesive sheet was cut into 25.4 mm x 150 mm, the base material layer was peeled off from the peelable support, and the base material layer was pressure-bonded onto a 3 mm thick flat plate glass using a squeegee. did. After leaving it for 72 hours at room temperature, soaking it in water at 40 ° C for 162 hours, taking it out, and air-drying at 23 ° C for 1 minute, then Strograph M
The base material layer was peeled off in the direction of 180 ° with respect to the coated plate using -50, and the adhesive strength was measured. However, the pulling speed is 0.3m
I went in minutes.

(8) Gasoline resistance After cutting the adhesive sheet into 60 × 60 mm, peeling off the base material layer from the release support, press it onto an alkyd melamine coated plate (manufactured by Japan Test Panel Industry Co., Ltd.) using a squeegee. did. After leaving this for 72 hours at room temperature, it was immersed in unleaded gasoline for 30 minutes, taken out and dried, and then the surface condition of the base material layer was evaluated. The evaluation was carried out according to the following three-level evaluation of ○, △, ×.

 ○: Almost no change in surface condition.

Δ: About 30 blisters with a diameter of 0.5 mm or less are recognized, or the end of the test piece is turned up by 1 to 2 mm.

X: There is more or more blistering than in the case of Δ above, or the end of the test piece is greatly turned up.

(9) Weather resistance The adhesive sheet was cut into 35 × 60 mm, and the base material layer was pressure bonded onto an alkyd melamine coated plate (manufactured by Japan Test Panel Industry Co., Ltd.) using a squeegee. Next, this was manufactured by Nippon Carbide Industries Co., Ltd. Hayatsuki Plant (Location: Oshima, Namerikawa City, Toyama Prefecture)
The exterior was exposed for 2 years at an inclination of 45 ° facing south, and the appearance was evaluated. The evaluation was carried out according to the following three-level evaluation of ○, △, ×.

○: No significant discoloration and no peeling of the sheet.

Δ: Some discoloration is observed, but peeling of the sheet is not observed.

X: Remarkable discoloration or peeling of the sheet is observed.

(Example 1) Silicon release paper A was used as a releasable support, and 100 parts by weight of an acrylic adhesive (trade name: PE-121 / Nippon Carbide Industry Co., Ltd.) and a cross-linking agent were used on the support. (Product name:
1 part by weight of a mixed solution of Coronate L / Nippon Polyurethane Industry Co., Ltd. is applied and dried to form a pressure-sensitive adhesive layer having a thickness of about 35μ. Then, a base material layer (trade name: HES Paint 5010M, manufactured by Nippon Carbide Industry Co., Ltd.) was laminated on the heat-sensitive adhesive layer to prepare an adhesive sheet, which was then stored at room temperature for one month.

After that, the adhesive sheet was cut into 25.4 × 150 mm, and the dynamic peel resistance of the test piece was measured according to the method described in (1) above, and the various evaluations were performed, and the results are shown below. The results are shown in Table 1. Examples 2 to 2 below
The results of Comparative Example 5 are also shown in Table 1 below.

(Example 2) Using a silicone-based release paper B as a releasable support, an acrylic adhesive (trade name: PE-121, manufactured by Nippon Carbide Industry Co., Ltd.) was used to form a pressure-sensitive adhesive layer. Instead of using an acrylic pressure-sensitive adhesive (trade name: KP-982, manufactured by Nippon Carbide Industry Co., Ltd.), the procedure is substantially the same as in Example 1.

(Example 3) In order to form a pressure-sensitive adhesive layer, the above-mentioned acrylic adhesive (trade name: PE-121, manufactured by Nippon Carbide Industry Co., Ltd.)
The procedure is substantially the same as in Example 2 except that a mixture of 100 parts by weight and 2 parts by weight of a silicone adhesive (trade name: PSA-6540, manufactured by Toshiba Silicone Co., Ltd.) is used.

(Example 4) The above-mentioned example except that a silicone-based release paper C was used as a releasable support and an acrylic resin film (trade name: HS Paint A film / manufactured by Nippon Carbide Industry Co., Ltd.) was used as a base material layer. It is almost the same as the case of 1.

(Comparative Example 1) The procedure is substantially the same as in Example 1 except that the silicone-based release paper E is used as the releasable support.

(Comparative Example 2) Acrylic adhesive: PE1 for forming a pressure-sensitive adhesive layer
21 (manufactured by Nippon Carbide Industry Co., Ltd.) except that 4 parts by weight of the above-mentioned silicone-based adhesive (trade name: PSA-6540 manufactured by Toshiba Silicone Co., Ltd.) which is mixed. This is almost the same as the case of the third embodiment.

(Comparative Example 3) The same as Example 1 except that the silicone-based release paper D was used as the release support.

(Comparative Example 4) The procedure is substantially the same as in Example 1 except that a silicone-based release PET / F (indicated as PF in Table 1) is used as the release support.

Comparative Example 5 Silicone release paper B was used as a release support, and a vinyl chloride resin film (trade name: FC-1164) was used as a base material layer.
The procedure is the same as in Example 1 except that Riken Vinyl Co., Ltd. is used.

The characteristics of the releasable support used in the above-described Examples and Comparative Examples are as follows.

Each of the silicone-based release papers A to D is a high-quality paper laminated with a polyethylene layer and further coated with a silicone resin as a release layer. The characteristics of each difference are as follows.

100 parts by weight of an acrylic adhesive (trade name: PE-121, Nippon Carbide Industry Co., Ltd.) and a cross-linking agent (trade name: Coronate L, Nippon Polyurethane Industry Co., Ltd.) on the support 1
Part by weight of the mixed solution is applied and dried to form a pressure-sensitive adhesive layer having a thickness of about 35μ. Next, a base material layer (trade name: High Espint 5010M, manufactured by Nippon Carbide Industry Co., Ltd.) is laminated on the heat-sensitive adhesive layer to prepare an adhesive sheet, which is then stored at room temperature for one month, After that, the adhesive sheet is cut into 25.4 × 150 mm, and the dynamic peel resistance of the test piece is measured according to the method described in (1) above. Its dynamic peel resistance is characterized as follows.

A: Dynamic peel resistance is 18 g / inch at 0.3 m / min and 50 g / inch at 9 m / min.

B: Those having a dynamic peel resistance of 7 g / inch at 0.3 m / min and 17 g / inch at 9 m / min.

C: Dynamic peel resistance is 22 g / inch at 0.3 m / min and 28 g / inch at 9 m / min.

D: Those having a dynamic peel resistance of 20 g / inch at 0.3 m / min and 20 g / inch at 9 m / min.

In addition, the silicone-based release paper E is a super-calendered paper having a surface coated with clay and further coated with a silicone resin as a release layer.
TF is a PET film coated with a silicone resin as a release layer.

Like A to D, E and F are characterized as follows.

E; 18g / inch when dynamic peel resistance is 0.3m / min, 11 when 9m / min
Those that are 0 g / inch.

F; 7g / inch when dynamic peel resistance is 0.3m / min, 15g when 9m / min
What is / inch.

As is clear from the description in Table 1 above, the pressure-sensitive adhesive sheet for a cutting machine of the present invention has excellent cutting properties, dust removal properties, and transfer properties.

Although the present invention has been specifically described above, the pressure-sensitive adhesive sheet for a cutting machine of the present invention is not limited to those shown in the above examples, and can be variously modified without departing from the scope of the present invention. Needless to say.

Further, the pressure-sensitive adhesive sheet for a cutting machine of the present invention can be applied to devices other than the cutting machine controlled by a computer.

〔The invention's effect〕

The pressure-sensitive adhesive sheet for a cutting machine of the present invention can perform accurate pattern cutting because the base material layer of the cutting portion does not curl up even when using a cutting machine with a fast cutting operation, and the base material layer after cutting Since it can be easily and accurately peeled from the peeling support, it is possible to efficiently remove dust and transfer the work to the application sheet.

Claims (1)

(57) [Claims] 1. A pressure-sensitive adhesive for a cutting machine, comprising a release support having a release layer, and a base material layer having a pressure-sensitive adhesive layer laminated on the release layer with the pressure-sensitive adhesive layer interposed therebetween. A sheet, wherein the pressure-sensitive adhesive layer of the base material layer and the peeling layer of the peelable support have a dynamic peel resistance of 8 to 40 g / inch and a pulling speed of 9 m at a pulling speed of 0.3 m / min. 25-100 per minute
Pressure-sensitive adhesive sheet for cutting machines, characterized by g / inch.