JP2000336324A - Adhesive sheet or tape having identification display - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an adhesive sheet or tape imparted with product- identification information without using printing technique and provide its production process. SOLUTION: This adhesive sheet or tape 1 is provided with embossed information (e) on the adhesive tape or sheet (number code showing the total length, etc., of the sheet or tape, information on the kind, use and pasting object, letters or pattern showing the provider, etc., or their combination). The process for the production of the adhesive sheet or tape comprises the embossing of the information (e) to a substrate followed by the application of an adhesive 2 on one surface or the application of an adhesive 2 on one surface of the substrate followed by the embossing of the information (e).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an adhesive sheet or tape having an identification. More specifically, the present invention relates to a pressure-sensitive adhesive sheet or tape having an identification mark by embossing such as product shape, information or information on an object to be adhered, which is information on the pressure-sensitive adhesive sheet or tape product, and a method for producing the pressure-sensitive adhesive sheet or tape. is there.

[0002]

2. Description of the Related Art Of a support (also referred to as a base material) made of cloth, cellophane, kraft paper or plastic coated with an adhesive on one or both sides, a relatively wide one is an adhesive sheet and a relatively wide one. Those having a narrow width are called adhesive tapes, and are all used in a very wide range such as packaging, sealing, protection of instruments and the like, bundling, protection of various surfaces, and sticking of articles. Depending on the use of these pressure-sensitive adhesive sheets or tapes, it is necessary to have an identification sign for the purpose of indicating the contents of the package or calling for attention, but this identification sign has heretofore been mostly printed. However, when the support is paper, printing is relatively easy, but printing with cloth or plastic is difficult, and even if possible, the number of working steps increases, and the working environment is increased due to the use of organic solvents and the like. However, there is a problem that the cost increases. For example, among the masking films for painting,
A film for masking a large area is folded, then wound around a paper tube to form a roll, and an adhesive tape for sticking to a coating object is provided on one edge of the film with a part of an adhesive layer. Is left unbonded
It has become mainstream in recent years. However, although such a roll-shaped masking film for coating is compact, most of the work involves bringing in rolls of various sizes at the coating site, and the overall dimensions cannot be immediately identified, This is often inconvenient, and eventually causes a reduction in workability. In order to solve such a problem, conventionally, necessary information is printed on a film surface, a paper tube, or an adhesive tape. However, among these, when printing on the film surface, if the film is paper or non-woven fabric, although there is relatively no problem, in the case of a polyolefin resin film that is currently most widely used, the polar group is small, and Since the degree of conversion is high and the affinity for printing ink is low, it is necessary to perform pretreatment such as corona discharge treatment, flame treatment, and primer treatment before printing to improve the resin surface and improve the affinity. . For example,
Patent No. 2672 filed by the present applicant and already patented
No. 667 discloses a masking film for coating in which the inner and outer surfaces of a tubular film are subjected to corona discharge treatment, the outer surface thereof is subjected to necessary printing, and the tubular film is folded and cut open. However, since this requires a corona discharge treatment prior to printing, it is not always advantageous in the manufacturing process. Printing on paper tubes and adhesive tapes has also been proposed and is already on the market,
In the case of the former paper tube, it may be difficult to visually check the information on the paper tube because the film folded on the paper tube is wound in multiple layers, and in the case of the latter adhesive tape, There were problems such as peeling of the print due to the adhesive. Furthermore, even in the case of printing on any of the above members, a printing step using an organic solvent is necessary as described above,
There is a problem that the manufacturing working environment is deteriorated and the cost is increased.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of such a situation, and information on an adhesive sheet or tape, that is, the type or use of the sheet or tape itself, or to which the information is applied. Adhesive sheets or tapes that are provided safely, easily, and at low cost without the need for printing the type and purpose of the side (the object to be pasted) and other words and symbols that draw attention when applying. It is an object to provide a manufacturing method.

[0004]

Means for Solving the Problems The present inventor has conducted intensive studies in order to solve the above-mentioned problems, and as a result, by embossing, information on an adhesive sheet or a tape product can be printed on its surface in a relatively easy operation. It was found that the information could not be lost due to the action of the pressure-sensitive adhesive during use, and the present inventors completed the present invention by further study.

That is, the present invention relates to the following pressure-sensitive adhesive sheet or tape and a method for producing the same. (1) A pressure-sensitive adhesive sheet or tape having a pressure-sensitive adhesive applied to one side of a support, wherein the support has information on the pressure-sensitive adhesive sheet or tape applied by embossing. . (2) The pressure-sensitive adhesive sheet or tape according to the above (1), wherein the support is made of a synthetic resin, paper or cloth, or a laminate thereof. (3) The information on the pressure-sensitive adhesive sheet or tape is a letter, a number, a pattern, or a combination thereof indicating at least one type of information on the size, name, application, related party, or object to be pasted of the sheet or tape. 1)
Or the pressure-sensitive adhesive sheet or tape according to (2). (4) The pressure-sensitive adhesive tape according to any one of (1) to (3), for sticking the coating masking film to an object to be coated. (5) The pressure-sensitive adhesive tape according to (4), wherein information on the masking film for coating is applied by embossing. (6) A method for producing a pressure-sensitive adhesive sheet or tape in which a pressure-sensitive adhesive is applied to one side of a support, wherein the support is provided with information on the pressure-sensitive adhesive sheet or tape by embossing, and the embossed support is provided. A method for producing a pressure-sensitive adhesive sheet or tape, comprising applying a pressure-sensitive adhesive to one side of a sheet. (7) A method for producing a pressure-sensitive adhesive sheet or tape in which a pressure-sensitive adhesive is applied to one side of a support, wherein the pressure-sensitive adhesive is applied to one side of the support, and the pressure-sensitive adhesive sheet or tape is applied to the pressure-sensitive adhesive-coated support. A method for producing a pressure-sensitive adhesive sheet or tape, comprising applying information on a tape by embossing. (8) A method for producing a pressure-sensitive adhesive tape, comprising winding the pressure-sensitive adhesive sheet produced by the method of (6) or (7) above into a roll and cutting the pressure-sensitive adhesive sheet roll into a predetermined width.

[0006] The pressure-sensitive adhesive sheet or tape of the present invention is characterized in that the information on the pressure-sensitive adhesive sheet or tape is provided by embossing. Alternatively, the tape product shape (dimensions, for example, overall length), name (product name, product code, etc.), application (for example, packaging, sealing,
Protection, binding, etc.), information related to the provider (eg, manufacturer name, seller name or user name or a mark indicating them, etc.), the object to be pasted, that is, information on the side to be applied [eg, masking film for coating In the case of an adhesive tape for affixing the masking film: the full width of the folded masking film, the use for building or automobile, etc., the name of the related party (eg, manufacturer name, seller name, user name, installer name) Etc .; in the case of sealing a cardboard box: the name of the content) means a display (identification display) for identifying the pressure-sensitive adhesive sheet or tape product, which comprises a combination of letters, numbers and / or patterns etc. . Specifically, as information on the adhesive sheet or the tape itself, m number indicating the total length,
For example, in addition to a character string such as "50" or "100", a character string such as "Fukan" for sealing and "BIND" for bundling, it can be folded or rolled. For the adhesive tape to be bonded to the coating masking film, the number of mm of the entire width when the masking film is developed, for example, “300”, “50”
Numeric string such as "0", "1000" or "2400", the name of the provider of the product, for example, "YOSHINO",
A character string such as "Yoshino" or "Yoshino Kasei", a pattern indicating a related party (for example, a mark of a manufacturer or a company of a user), and in case of sealing a cardboard box, the contents of the cardboard box are fresh foods. Information can be provided by embossing a character string such as "raw" indicating that there is a certain thing, "fragile" indicating a fragile thing such as a glass product, or a combination thereof. The above numbers,
For characters or patterns, individual embossed patterns are assigned to one character or one pattern, and the above “300” or “YOSH”
Even if a number / character string such as "INO", a company mark, etc. are expressed, the embossed pattern can be used in common, such as a turtle shell, lattice, silk, diamond, iridescent, hemp, satin, splash,
The above information may be expressed on a sheet or tape surface by a streak, a rectangle, or the like. The embossing may be performed on at least a part of the sheet or the tape, and the ratio of the embossed area to the entire surface of the sheet or the tape is not particularly limited. For the purpose, it is preferably at least half the entire surface of the sheet or tape, and it is particularly preferable to apply embossing to almost the entire surface. The embossing is performed, for example, by passing a sheet or tape to be processed between a chill roll having an appropriate surface roughness and a pressure roll so that information on the adhesive sheet or tape is expressed on the sheet or tape surface as described above. This can be done by: Therefore, the present invention also relates to an embossing device including a chill roll and a pressure roll that can give information by embossing to a sheet or tape to be processed.
Emboss depth (measured according to JIS B0601)
Is 以下 or less, preferably １ ／ or less of the film thickness, and the lower limit thereof is 1/10. If the embossing is too deep, the sheet or tape will be too thin and have low strength, which is undesirable. Conversely, if the embossing is too shallow, the embossing effect is not exhibited, which is not desirable. In the present invention,
The size of the pattern is not particularly limited, but is usually 0.5 to 30 mm, and preferably 2 to 20 mm. This is because if it is less than 0.5 mm, it is difficult to identify the information to be given, and if it exceeds 30 mm, embossing may not be performed sufficiently, which may be undesirable. Further, even if the embossed pattern in the present invention is an intaglio type,
It may be a letterpress type. The coating masking film subjected to embossing has already been developed and filed by the present applicant, and has obtained a patent as Patent No. 2610226.
Although the patent publication describes that the embossing process is used to improve the paint adhesion and the amount of coating, to improve the work of adhering to a painted surface, and to improve the appearance, the identification by embossing as in the present invention is described. There is no teaching or suggestion about indications and adhesive sheets or tapes.

The pressure-sensitive adhesive sheet or tape of the present invention is obtained by applying a pressure-sensitive adhesive to one side of a support, also called a substrate,
It is also called a pressure-sensitive sheet or tape, and if necessary, it is wound into a roll to form a product. A relatively wide one, generally exceeding 20 cm, is an adhesive sheet, and a relatively narrow one, generally 20 cm wide. The following are classified as adhesive tapes. In the case of a roll body, a release agent, for example, a silicone resin or a fluororesin, is usually applied to the opposite side of the support on which the adhesive layer is applied, to facilitate rewinding, and the adhesive supports the lower layer. Prevents transfer to body surface. The support in the present invention is not particularly limited as long as it is embossed on itself or on the one coated with a pressure-sensitive adhesive layer and optionally a release agent, and the embossed pattern does not disappear for a predetermined period. Anything can be used, but it is preferably made of synthetic resin, paper or cloth, or a laminate thereof. Examples of the laminate include synthetic resin / paper,
Examples include synthetic resin / cloth, paper / cloth, synthetic resin, paper, and three types of laminates of cloth. Synthetic resins include polyolefin resins (eg, high density polyethylene, medium density polyethylene,
High-pressure method low-density polyethylene, polypropylene, linear low-density ethylene-α-olefin copolymer, ethylene-vinyl acetate copolymer, ethylene-acrylate copolymer), polyvinyl chloride, acetate, etc. Can be. Among the polyolefin resins, high-density polyethylene is preferred because of its excellent strength, cross-cutting property, handleability, processability, heat resistance and the like. When a synthetic resin is used as the support, various additives such as a biodegradable resin, a photodegradable resin, a biodegradability imparting agent, and photodegradation are used as long as the physical properties of the support as a support of the pressure-sensitive adhesive sheet or tape are not impaired. Pigments, dyes, antioxidants, antistatic agents, antifogging agents, bath absorbents, deodorants, fragrances, antiblocking agents, slip agents, and the like may be added in addition to the property imparting agent and the inorganic filler. .

Examples of the biodegradable resin include polycaprolactone, aliphatic polyesters such as polylactic acid, polyglycolic acid and polyhydroxybutyrate, aliphatic copolymerized polyesters, polyurethane resins, polyamide resins, polyvinyl alcohol, polyether, and the like. For example, polyethylene glycol or polypropylene glycol and the like, and as the photodegradable resin, ethylene-
Examples include a carbon monoxide copolymer and a polyketone such as a vinyl ketone copolymer. When the biodegradable resin and / or the photodegradable resin is blended, the blending amount is not particularly limited, but is preferably up to about 100 parts by weight based on 100 parts by weight of the synthetic resin. This is due to the fact that even if it is blended more than that, there is no or little performance improvement due to each of the blended resins, and it is not economical. Further, as a biodegradability imparting agent, glucose, galactose, mannose, monosaccharides such as fructose, maltose, lactose, disaccharides such as sucrose, starch, dextrin,
Examples include polysaccharides such as cellulose, inulin, agarose, and fructan; amino sugars such as chitin, chitosan, amikacin, and sisomacsin; reducing sugars such as aldose, ketose, and heptose; and sugar alcohols such as detritol and pentitol. Starch and its derivatives, which are easily available and inexpensive, are preferred in that sheets and tapes containing them are easily manufactured, have high performance, and have good biodegradability. The amount of the biodegradability-imparting agent is not particularly limited as long as the obtained sheet or tape has biodegradability, and may vary widely depending on the type of the biodegradability-imparting agent to be used and the use of the sheet or tape. Although it varies, the biodegradability-imparting agent is usually 1 to 80% by weight, preferably 5 to 70% by weight in 100% by weight of the composition with the synthetic resin.
It is blended so that In particular, when starch or a derivative thereof is blended as a biodegradability-imparting agent, the blending amount is 5 to 70% by weight, preferably 6 to 50% by weight, particularly 7 to 20% by weight based on 100% by weight of the resin composition. %.
If the starch or its derivative is at least 5% by weight, the biodegradability will increase as its amount increases, and if it exceeds 70% by weight, the physical properties of the synthetic resin will be significantly reduced, making it unsuitable for practical use as a sheet or tape. There is. Also, a photodegradability-imparting agent, an additive generally called a photosensitive reagent,
For example, by adding a photosensitizer having a carbonyl group (benzophenone, acetophenone, anthraquinone, etc.) or a metal compound (metal salt of an organic acid, etc.), photodegradability is imparted in addition to biodegradability. Of the sheet or tape can be promoted. If a photodegradability-imparting agent is contained, even if the microorganisms that decompose the sheet or tape are small in the soil or water in which the sheet or tape has been discarded, or if the waste sheet or tape is ground or from the soil or water, Even if it comes out of the water, the disassembly of the sheet or tape proceeds quickly.
Therefore, in a preferred embodiment of the present invention, the pressure-sensitive adhesive sheet or tape is produced from a resin composition containing a photodegradability-imparting agent in addition to a biodegradability-imparting agent. Specific examples of the photodegradability-imparting agent include the following: iron diethyldithiocarbamate, manganesediethyldithiocarbamate, zinc dibutyldithiocarbamate, zinc diisopropyldithiophosphate, 1,4-benzoquinone, benzylidenephthalide, β- [Cyanobenzylidene] phthalide, No-phenyl-3-benzylidenephthaloimidine, anthraquinone and its derivatives, benzophenone and its derivatives, benzotriazole and its derivatives, 1,2-dibenzoylethylene, dibenzoylbenzene, ditoluylbenzene , Indandione, indanone, coumaranone, fatty acid metal salts (eg, cobalt acetate, nickel acetate, nickel laurate, copper stearate, ferric stearate, zinc stearate, etc.),
One or two selected from iron acetyllactonate, 2-hydroxy-4-octyloxybenzophenone, and the like
Combination of more than species. The amount of the photodegradability-imparting agent varies depending on the intended photodegradability, but usually the composition 1 with the synthetic resin is used.
In 00% by weight, the photodegradability-imparting agent is 0.2 to 10% by weight,
Preferably, it is blended to be 0.5 to 10% by weight.
In the present invention, the type of the inorganic filler is not particularly limited, but in terms of price, physical properties, hue, etc., calcium carbonate, talc, calcium sulfite, barium sulfate, aluminum hydroxide, magnesium hydroxide, clay, calcium silicate, hydrotal Site, silica or zeolite is desirable, and calcium carbonate is particularly desirable. In addition, since the surface of the inorganic filler is polar and has poor affinity with synthetic resins such as non-polar high-density polyethylene, the inorganic filler is used as a higher fatty acid or a metal salt thereof, a silane coupling agent, a titanium coupling. Surface treatment with an agent, an aluminum-based coupling agent or the like is preferable because it enhances the affinity with the resin and contributes to obtaining a sheet or tape of uniform quality. Inorganic filler is synthetic resin 100
It is preferable to mix up to 50 parts by weight with respect to parts by weight. This is because if it exceeds 50 parts by weight, it may be difficult to manufacture a sheet or a tape. In the present invention, the synthetic resin, in addition to the biodegradable resin, the photodegradable resin, the biodegradability imparting agent, the photodegradability imparting agent and the inorganic filler as described above, an autoxidizer, an oxidized oil or a metal salt, a metal By adding an oxide or metal hydroxide, etc.
The decomposition of the sheet or tape in soil or water can be further promoted. It goes without saying that the amounts of these other additives are adjusted so as not to impair the object of the present invention. A substance that promotes the oxidative decomposition of a synthetic resin having a carbon-carbon double bond such as oleic acid or an ester thereof as an autoxidizing agent, and an animal oil (tallow,
Oxidized vegetable oils (rapeseed oil, corn oil, sunflower oil, safflower oil, etc.) and metal salts, metal oxides or metal hydroxides include sodium, potassium, calcium, magnesium Inorganic acid salts (sulfates, hydrochlorides, carbonates, etc.) or organic acid salts (carboxylates, etc.) such as zinc, aluminum, manganese or iron
And oxides and hydroxides.

As the pressure-sensitive adhesive in the present invention, those commonly used for pressure-sensitive adhesive sheets and tapes can be used as they are. For example, acrylic, polyisobutylene, SBR, butyl rubber, chloroprene rubber, vinyl chloride-vinyl acetate copolymer, chloride rubber, polyvinyl butyral, etc. are listed, and the type of support used and the intended use of the pressure-sensitive adhesive sheet or tape It is appropriately selected according to the conditions. When using a synthetic resin or a laminate containing the same as the support of the pressure-sensitive adhesive sheet or tape of the present invention, if high hand-cutting properties are particularly required, the support may be subjected to a stretching treatment, The purpose is achieved by blending the above-mentioned inorganic filler with the synthetic resin. In addition, a synthetic resin support blended with an inorganic filler,
By appropriately selecting and applying the corona treatment from the discharge treatment amount range of 50 to 3000 W / m ² / min, the support can be given a paper-like or cloth-like feel, and air permeability and moisture permeability. Although the function of identifying the pressure-sensitive adhesive sheet or tape of the present invention can be sufficiently achieved by embossing as described above, it goes without saying that printing may be further performed. For example, "Painting", "Fire is prohibited", "Paint drying"
For example, printing of words and marks that call attention, characters, marks, patterns, and the like for the purpose of improving product value and environmental beautification. The surface on which such printing is performed is preferably subjected to the above-described corona discharge treatment in order to improve the ink adhesion, and the corona discharge treatment amount at this time is usually 30 to 40 W /.
m ² / min is sufficient.

The pressure-sensitive adhesive sheet or tape of the present invention can be produced, for example, by any of the following methods: (a) Information on the pressure-sensitive adhesive sheet or tape is applied to a support by embossing, and then a pressure-sensitive adhesive is applied to one surface of the support. (B) An adhesive is applied to one surface of the support, and thereafter information on the adhesive sheet or tape is applied to the support by embossing. In either method a or b, an adhesive is applied to one surface of the support, and a release agent is usually applied to the other surface of the support. In addition, when a roll is not taken as the product shape of the adhesive sheet or tape, that is, when a plate-shaped adhesive sheet or a strip-shaped adhesive tape is used,
The above-mentioned release agent is not always necessary, and instead, a release paper is usually applied to the surface of the pressure-sensitive adhesive layer, and adhesion to an undesired portion is prevented until use. Which method is selected is appropriately selected depending on the material of the support used and the like. For example, in the case of a support made of synthetic resin or paper, embossing is generally performed first, and then an adhesive is applied (method a). On the other hand, when a cloth or the like is the support, An adhesive and a release agent are applied first if desired,
Thereafter, embossing is performed (method b). further,
A relatively narrow pressure-sensitive adhesive tape is obtained by winding a relatively wide pressure-sensitive adhesive sheet manufactured by any of the above methods a or b into a roll, and cutting the pressure-sensitive adhesive sheet roll into a predetermined width. Can be easily manufactured. When the pressure-sensitive adhesive sheet or tape of the present invention is adhered to another member to form a product, it is needless to say that the pressure-sensitive adhesive sheet or tape manufactured by any of the above methods a or b can be applied, A desired embossing process may be performed immediately before, during or after attaching the previous pressure-sensitive adhesive sheet or tape to another member. For example, when manufacturing a masking film roll body for coating by sticking an adhesive tape on the masking film for coating, one portion obtained by folding a tubular film called a raw roll in the longitudinal direction is cut open in the longitudinal direction, and the end thereof is opened. The adhesive tape is adhered to the edge while leaving an unattached portion, and at the same time, the masking film portion is further folded as necessary and wound around a paper tube or the like. Usually, the type of the raw roll is frequently changed during the production of the masking film roll for coating, but almost the same type of adhesive tape is used. At this time, an adhesive tape before embossing can be supplied, and the intended embossing can be performed immediately before, during or after application to the masking film. Here, when the information by embossing is an object to be stuck, that is, information on a masking film, for example, a numeric string indicating the full width thereof, even if the type of the raw roll changes (for example, the full width changes from 1000 mm to 2000 mm), The supplied adhesive tape can be used as it is by simply changing the device (roll etc.) for embossing information, and the adhesive tape with accurate information on the masking film can be easily and smoothly attached to the film. be able to. Further, the method of performing embossing at the time of manufacturing a product in which the pressure-sensitive adhesive sheet or tape is attached to another member as described above, when the information by embossing of the sheet or tape relates to another member, It is also an advantage that the pressure-sensitive adhesive sheet or tape for a member does not run out during production of the product, or conversely. Therefore, the present invention, before sticking the pressure-sensitive adhesive sheet or tape to another member, during or after sticking, information on the pressure-sensitive adhesive sheet or tape, preferably information on other members that are the object to be stuck The present invention also relates to a method for producing a product to which an adhesive sheet or a tape is attached, which is performed by embossing. In particular,
The present invention relates to a method for producing a coating masking film roll obtained by adhering an adhesive tape to a coating masking film, and the information on the masking film (for example, before, during or after the application) The present invention also relates to the above-mentioned manufacturing method, wherein embossing is performed on a numerical example showing the full width when unfolded, applications, and the like.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION The pressure-sensitive adhesive sheet or tape of the present invention is provided with product information (length of the product, use, information on an object to be attached, etc.) on the sheet or tape surface by embossing. The adhesive force between the support and the adhesive (and the adhesive between the release agent and the support when used) is high, and the original performance as an adhesive sheet or tape is excellent. I have. In particular, when the pressure-sensitive adhesive tape of the present invention is used as a pressure-sensitive adhesive tape that is folded and wound around a tubular body such as a paper tube and adhered to an edge of a coating masking film that is formed into a roll,
By using the embossed identification information as the information on the masking film (for example, the full width when the film is rewound and expanded, the use, etc.), when the roll of the masking film is obtained, the information on the roll is immediately known. Can be. The pressure-sensitive adhesive tape of this roll is always located at the outermost position until the roll is used up, so that the speed and accuracy of information recognition are higher than when printing on the innermost paper tube or printing on a folded film. The quality is much better. Further, the pressure-sensitive adhesive sheet or tape of the present invention can be used not only for the application of the above-mentioned painted masking film but also for other uses such as packaging, sealing, protection of instruments, bundling, etc. Therefore, it is suitably used as a surface material.

[0012]

Next, the present invention will be described in more detail with reference to examples, but the present invention is not limited to these examples. Example 1 Density 0.950 g / ml, melt index 2.0 g
Extruded from a die at 190 ° C with a blow ratio of 4.5 and a take-up speed of 50 m / min.
A 0 mm tubular film was obtained. A cut was made in the center of the tubular film with a thin razor blade in the longitudinal direction, and then developed to form a single flat sheet, which was used as a support. A depth of 1
A number string “500” having a size of 5 μm and a single character size of 15 mm × 15 mm was embossed along the longitudinal direction of the film, with the interval between the number strings being 10 mm. Next, an acrylic pressure-sensitive adhesive is applied to one surface of the embossed support, and a silicone release agent is applied to the other surface,
It was wound around a roll to obtain a pressure-sensitive adhesive sheet roll. The pressure-sensitive adhesive sheet roll was formed into a pressure-sensitive adhesive tape roll by slicing it every 20 mm in width. At this time, one character string of “500” by embossing was set to fit in each tape roll. The obtained pressure-sensitive adhesive tape is obtained by folding a tubular film having a folding diameter of 250 mm manufactured from a polyolefin resin in the longitudinal direction and partially opening the film at one location in the longitudinal direction. It was laminated so as to overlap the surface, and this was wound in a roll shape around a paper tube to obtain a masking film roll for coating. The obtained adhesive tape and coating masking film roll are shown in FIGS. 1 and 2, respectively. The adhesive tape 1 is embossed with information e by a character string of "500" indicating the number of millimeters of the entire width when the folded masking film is expanded, and the tape 1 is attached to an edge of the masking film. Even when the film 6 is folded and wound around the paper tube 7, the roll body 5 can immediately recognize the entire width thereof. The pressure-sensitive adhesive 2 and the release agent 4 are firmly bonded to the support 3 by the anchor effect of the embossed pattern, and are also used (during unwinding from the roll body) and after use (peeled off from the object to be stuck). Case) also support 3
Did not fall off. In addition, after storage for a long time, no such shedding was observed even when used. In the above example, a single character string of "500" is applied over the entire width of the tape. However, even if a plurality of character strings are engraved as shown in FIG. Embossing may be performed on a portion other than the so-called ground portion, or further, different embossing may be performed on the character portion and the ground portion as shown in FIG. An example in which a crest is formed is shown). Example 2 An SBR-based pressure-sensitive adhesive was applied to one surface of a cloth tape support having a width of 200 mm, and a silicone-based release agent was applied to the other surface. Is 1
A 5 mm × 15 mm numeral string “500” was embossed along the longitudinal direction of the film with the interval between the numeral strings being 10 mm. This pressure-sensitive adhesive sheet roll is cut into a circle every 20 mm to form a pressure-sensitive adhesive tape roll.
One line of the character string "500" by embossing was set to fit in each tape roll body. The obtained pressure-sensitive adhesive tape was used for bonding to a masking film for coating in the same manner as in Example 1, and exhibited the same effect as that of Example 1, and the hand-cutting property was particularly good. Example 3 An SBR-based pressure-sensitive adhesive was applied to one surface of a cloth tape support having a width of 200 mm, and a silicone-based release agent was applied to the other surface, and then wound around a roll to obtain a pressure-sensitive adhesive sheet roll.
Next, this pressure-sensitive adhesive sheet roll is cut into a circle every 20 mm to obtain a pressure-sensitive adhesive tape roll. The obtained pressure-sensitive adhesive tape was folded from a polyolefin resin with a folding diameter of 250.
mm tubular film in the longitudinal direction 1
A part of the adhesive tape is adhered to one end of the film cut in the longitudinal direction so that a part of the adhesive surface of the adhesive tape is overlapped with the film surface, and this is wound around a paper tube in a roll shape to form a masking film roll body for coating. However, immediately before this bonding, the pressure-sensitive adhesive tape has a numeral string of “500” in its longitudinal direction (mm number of the entire width of the folded masking film).
Is passed between the chill roll and the pressure roll so that the embossing is performed. The embossing had a depth of 20 μm, the size of one character was 15 mm × 15 mm, and the interval between each digit string was 10 mm. The masking film roll for coating obtained in this example exhibited the same effect as that of Example 1, and the adhesive tape was particularly excellent in hand-cutting property. In addition, when changing the type of coating masking film, it can be handled simply by changing one of the rolls for embossing that engraves the changed masking film information, so that the production line can be changed smoothly. did it. In this example, the pressure-sensitive adhesive tape was embossed immediately before lamination to the masking film. However, it goes without saying that the same effect can be obtained even during lamination or after lamination. Example 4 The entire surface of a kraft paper (support) having a width of 500 mm was provided with a depth of 2
A character string “Wamono” having a size of 20 μm × 20 mm and a character size of 0 μm was embossed with an interval between the character strings of 20 mm. It should be noted that the character string formed by embossing is rotated by 180 degrees with respect to that of a certain row. That is, the character string is reversed for each column. Next, an acrylic pressure-sensitive adhesive was applied to one surface of the support after embossing, and a silicone release agent was applied to the other surface, and wound around a roll to obtain a pressure-sensitive adhesive sheet roll. FIG. 6 shows the obtained pressure-sensitive adhesive sheet. The information e consisting of the character string of “wrack” by embossing can be visually observed, and by using this sheet 8 to protect glassware, setware, etc., it can be immediately recognized from the outside that the protection target is crack. . In addition, since the character strings are reversed for each line, the character strings can be easily determined regardless of the sheet direction at the time of use. Furthermore, the bond between the support and the pressure-sensitive adhesive and the release agent was strong, and no trouble occurred during and after use even after long-term storage. Example 5 An adhesive tape 1 using paper as a support as shown in FIG. 7 was produced as follows. Kraft paper with a width of 500 mm (support)
On the whole surface, one size is 20 mm × 2 with a depth of 15 μm
Information e of 0 mm (for example, a company mark) was embossed with a space of 30 mm between each information. In addition, the information by embossing is not grid-like throughout the support,
They were provided in a staggered pattern as shown in the figure. Next, an SBR-based pressure-sensitive adhesive was applied to one surface of the support after embossing, and a silicone release agent was applied to the other surface, and wound around a roll to obtain a pressure-sensitive adhesive sheet roll. The pressure-sensitive adhesive sheet roll is cut into a circle every 50 mm to obtain a pressure-sensitive adhesive tape roll. The obtained pressure-sensitive adhesive tape 1 can be suitably used for packaging and sealing. For example, by using it for sealing cardboard, not only can the provider of the cardboard or the shipper of the contents recognize at a glance the information e which is the company mark, but also the company mark is embossed. This can give consumers and users an impression that is not found in mere adhesive tapes, and can improve the distinctiveness of products. Furthermore, the bond between the support and the pressure-sensitive adhesive and the release agent was strong, and no trouble occurred during and after use even after long-term storage. Example 6 Density 0.920 g / ml, melt index 1.0 g
100 parts by weight of a linear ethylene-butene-1 copolymer produced by a gas-phase low-pressure method of / 10 min and calcium carbonate having an average particle size of 2 μm (the surface is treated with sodium stearate) 7
0 parts by weight was heated and kneaded at 180 ° C. for 20 minutes in a Banbury mixer to obtain a resin composition. This was extruded from a circular die at 180 ° C., and a tubular film having a thickness of 80 μm and a fold diameter of 30 mm was obtained by an air-cooled inflation method under the conditions of a blow ratio of 3.0 and a winding speed of 60 m / min. The inner gap of the tubular film is 1.8 mm, the gas inside the film is air, and the film is run at a speed of 15 m / min., And the inner surface corona discharge treatment machine (Kasuga Electric)
The inner surface of the tubular film is brought into close contact with the inner surface by applying an application treatment at 220 W / m ² / min. Then, the inner surface of the tubular film is brought into close contact with the inner surface and run at a speed of 15 m / min. Process power 110
The outer surface was corona-treated by applying a voltage of W / m ² / min. At the center of tubular film with corona treatment on both sides,
A cut was made in the longitudinal direction with a thin razor blade and then unfolded to form one flat sheet, which was used as a support. The entire surface of the support was embossed along the longitudinal direction of the film with a numeral string “1999” having a depth of 10 μm and the size of one character of 15 mm × 15 mm, with the interval between the numeral strings being 10 mm. Next, an acrylic pressure-sensitive adhesive was applied to one surface of the sheet, a silicone release agent was applied to the other surface, and the sheet was wound around a roll to obtain a pressure-sensitive adhesive sheet roll. The pressure-sensitive adhesive sheet roll was cut into a circle at intervals of 20 mm to obtain a pressure-sensitive adhesive tape roll. At this time, the string of numbers "1999" formed by embossing was accommodated in each tape roll. The obtained pressure-sensitive adhesive tape has excellent hand-cutting properties, and can be easily cut to a desired length by hand. In addition, since the numeral string “1999” is engraved, the numeral string can be easily recognized, for example, by bundling the related documents in 1999 or packing the accommodated box with this adhesive tape, so that the document can be organized. Was extremely effective. Also, no dropout of the pressure-sensitive adhesive and the release agent from the support was observed not only immediately after production but also after storage for a long period of time. Example 7 Density 0.932 g / ml, Melt Index 0.8 g
A resin composition consisting of 100 parts by weight of an ethylene-octene-1 copolymer / 10 minutes and 20 parts by weight of modified corn starch particles surface-treated with a silane coupling agent was supplied to an air-cooled inflation extruder, and a die (220 ° C.) Extrusion (18 kg / hour) from 65 mmφ diameter, 1.5 mm die gap, blow ratio 3.3, winding speed 45
Under the conditions of m / min, a tubular film having a thickness of 50 μm and a folding diameter of 50 mm was obtained. The tubular film is flattened, and a character string “CAUTION” having a depth of 10 μm and a size of one character of 20 mm × 20 mm is formed on the entire surface thereof.
The spacing between the character strings was 20 mm, and embossing was performed along the longitudinal direction of the film. In the center of the tubular film after embossing, make a cut parallel to the longitudinal direction with a thin razor blade, then unfold, make one flat sheet, and apply acrylic adhesive on one side of the sheet Then, a silicone release agent was applied to the other surface and wound around a roll to obtain a pressure-sensitive adhesive sheet roll. "CAUTION" by embossing by covering articles that need to be handled with care or covering the curing part with the obtained adhesive sheet
The alert can be called out by the character string, and after use, it is decomposed by disposing it in the soil, so that it does not burden the environment. Further, the bonding strength of the pressure-sensitive adhesive and the release agent to the support was high, and there was no problem such as falling off of the pressure-sensitive adhesive during and after use, not only immediately after use but also after long-term storage.

[0013]

As described above in detail, the pressure-sensitive adhesive sheet or tape of the present invention has the following remarkable effects by embossing information on the pressure-sensitive adhesive sheet or tape. (A) Product identification information (length of product, application,
The display of information on the object to be stuck) is given by embossing, not by printing, so that the use of an organic solvent or the like that deteriorates the working environment required for printing is not required, and the cost is reduced. Can be achieved. (B) Since the information for identifying the product is added, it is useful in inventory management of the product and management during distribution. (C) Due to the embossment of the sheet or tape surface, the bonding strength between the pressure-sensitive adhesive or the release agent and the support is very large, and the pressure-sensitive adhesive or the release agent is not detached when applied to an object to be stuck. The bonding with the object to be adhered is good, and the adhesive does not remain on the object to be bonded after use. In addition, the bond strength is maintained over time, providing good usability even after long-term storage of the product. (D) Since the unevenness due to the embossment of the pressure-sensitive adhesive sheet or tape is formed, a very good feeling that is not present in the conventional pressure-sensitive adhesive sheet or tape is given. Further, the pressure-sensitive adhesive tape of the present invention is used as a pressure-sensitive adhesive tape which is folded and wound around a tubular body such as a paper tube, and is adhered to an edge of a coating masking film which is formed into a roll, and an identification mark by embossing is used. By using the information on the masking film (for example, the total width when the film is rewound and expanded, the use, etc.), when the user takes the roll of the masking film, the information on the roll can be known immediately. The pressure-sensitive adhesive tape of this roll is always located at the outermost position until the roll is used up, so that the speed and accuracy of information recognition are higher than when printing on the innermost paper tube or printing on a folded film. The quality is much better. In addition, since information can be added without using printing as described above, the working environment is not adversely affected and the cost is advantageous. Furthermore, according to the method for producing a pressure-sensitive adhesive sheet or tape of the present invention, a pressure-sensitive adhesive sheet or tape having excellent performance as described above, using a conventional production line as it is by simply adding an embossing process,
Can be manufactured.

[Brief description of the drawings]

1 is a drawing showing an adhesive tape obtained in one embodiment of the present invention, (a) is a plan view showing a part thereof, and (b) is a sectional view thereof.

FIG. 2 is a perspective view showing a coating masking film roll to which the adhesive tape shown in FIG. 1 has been attached.

FIG. 3 is a plan view showing a part of an adhesive tape obtained in another embodiment of the present invention.

FIG. 4 is a plan view showing a part of an adhesive tape obtained in still another embodiment of the present invention.

FIG. 5 is a plan view showing a part of an adhesive tape obtained in another embodiment of the present invention.

FIG. 6 is a plan view showing a part of the pressure-sensitive adhesive sheet obtained in one example of the present invention.

FIG. 7 is a plan view showing a part of an adhesive tape obtained in another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Adhesive tape 2 Adhesive 3 Support 4 Release agent 5 Masking film roll for coating 6 Masking film 7 Paper tube 8 Adhesive sheet e Information by emboss processing

Claims (8)

[Claims] 1. A pressure-sensitive adhesive sheet or tape in which a pressure-sensitive adhesive is applied to one surface of a support, wherein the support has information on the pressure-sensitive adhesive sheet or tape applied by embossing. Or tape. 2. The pressure-sensitive adhesive sheet or tape according to claim 1, wherein the support is made of a synthetic resin, paper or cloth, or is a laminate thereof. 3. The information on the pressure-sensitive adhesive sheet or tape is a letter, a number, a pattern, or a combination thereof, which indicates at least one of information on the size, name, use, provider, or object of the sheet or tape. The pressure-sensitive adhesive sheet or tape according to claim 1. 4. The pressure-sensitive adhesive tape according to claim 1, wherein the masking film for coating is adhered to an object to be coated. 5. The pressure-sensitive adhesive tape according to claim 4, wherein the information on the coating masking film is embossed. 6. A method for producing a pressure-sensitive adhesive sheet or tape in which a pressure-sensitive adhesive is applied to one surface of a support, wherein information on the pressure-sensitive adhesive sheet or tape is applied to the support by embossing and then embossed. A method for producing a pressure-sensitive adhesive sheet or tape, comprising applying a pressure-sensitive adhesive to one surface of a support. 7. A method for producing a pressure-sensitive adhesive sheet or tape in which a pressure-sensitive adhesive is applied to one surface of a support, wherein the pressure-sensitive adhesive is applied to one surface of the support, and the pressure-sensitive adhesive is applied to the pressure-sensitive adhesive-coated support. A method for producing a pressure-sensitive adhesive sheet or tape, comprising applying information on a sheet or tape by embossing. 8. A method for producing a pressure-sensitive adhesive tape, comprising: winding the pressure-sensitive adhesive sheet produced by the method according to claim 6 into a roll, and cutting the pressure-sensitive adhesive sheet roll into a predetermined width.