WO2006087921A1 - 積層シート、積層シートの巻取体およびそれらの製造方法 - Google Patents
積層シート、積層シートの巻取体およびそれらの製造方法 Download PDFInfo
- Publication number
- WO2006087921A1 WO2006087921A1 PCT/JP2006/301833 JP2006301833W WO2006087921A1 WO 2006087921 A1 WO2006087921 A1 WO 2006087921A1 JP 2006301833 W JP2006301833 W JP 2006301833W WO 2006087921 A1 WO2006087921 A1 WO 2006087921A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sheet
- laminated
- adhesive layer
- adhesive
- release
- Prior art date
Links
- 238000004804 winding Methods 0.000 title claims abstract description 9
- 238000004519 manufacturing process Methods 0.000 title claims description 27
- 239000012790 adhesive layer Substances 0.000 claims abstract description 110
- 239000000463 material Substances 0.000 claims abstract description 89
- 239000000853 adhesive Substances 0.000 claims abstract description 73
- 230000001070 adhesive effect Effects 0.000 claims abstract description 73
- 239000010410 layer Substances 0.000 claims abstract description 21
- 239000000758 substrate Substances 0.000 claims description 31
- 238000000034 method Methods 0.000 claims description 12
- 238000003475 lamination Methods 0.000 claims 3
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- OMIGHNLMNHATMP-UHFFFAOYSA-N 2-hydroxyethyl prop-2-enoate Chemical compound OCCOC(=O)C=C OMIGHNLMNHATMP-UHFFFAOYSA-N 0.000 description 1
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Classifications
-
- 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
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
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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
- B32B43/00—Operations specially adapted for layered products and not otherwise provided for, e.g. repairing; Apparatus therefor
- B32B43/003—Cutting
-
- 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
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/06—Interconnection of layers permitting easy separation
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
- G09F3/02—Forms or constructions
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/26—Apparatus or processes specially adapted for the manufacture of record carriers
-
- 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
- B32B2310/00—Treatment by energy or chemical effects
- B32B2310/08—Treatment by energy or chemical effects by wave energy or particle radiation
- B32B2310/0806—Treatment by energy or chemical effects by wave energy or particle radiation using electromagnetic radiation
- B32B2310/0843—Treatment by energy or chemical effects by wave energy or particle radiation using electromagnetic radiation using laser
-
- 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
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
- C09J2301/18—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet characterized by perforations in the adhesive tape
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/10—Methods of surface bonding and/or assembly therefor
- Y10T156/1052—Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing
- Y10T156/1084—Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing of continuous or running length bonded web
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/14—Layer or component removable to expose adhesive
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/14—Layer or component removable to expose adhesive
- Y10T428/1476—Release layer
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/14—Layer or component removable to expose adhesive
- Y10T428/1486—Ornamental, decorative, pattern, or indicia
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/14—Layer or component removable to expose adhesive
- Y10T428/149—Sectional layer removable
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/14—Layer or component removable to expose adhesive
- Y10T428/149—Sectional layer removable
- Y10T428/1495—Adhesive is on removable layer
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/15—Sheet, web, or layer weakened to permit separation through thickness
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
- Y10T428/2457—Parallel ribs and/or grooves
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24777—Edge feature
Definitions
- the present invention relates to a laminated sheet in which an adhesive sheet having a predetermined shape is laminated on a release sheet, and a laminated sheet in which a long release sheet, an adhesive layer, and a substrate are laminated.
- the present invention relates to a laminated sheet that can reduce defects that may be formed on an adhesive sheet, and a laminated sheet that can maintain the smoothness of the surface of the adhesive layer when used as a scraped body. Is.
- Fig. 13 shows a conventional laminated sheet in which an adhesive label is laminated on a release sheet (Patent Document 1, Patent Document 2).
- Patent Document 1P a laminated sheet 1P
- the conventional laminated sheet 1P is composed of a long release sheet 2P and a cover sheet portion 51P (adhesive sheet) provided continuously in the longitudinal direction of the release sheet 2P.
- the force sheet 51P is composed of an adhesive layer 3P and a light-transmitting base material 4P, and has the same shape as the optical disc.
- the laminated sheet 1P is wound up in a roll shape, transported and stored in the state of a scraped body, and pulled out from the scraped body for use. In this way, when the laminated sheet 1P is used as a scooping body, the force by which the other cover sheet portion 51P is wound around the cover sheet portion 51P. At this time, the force bar sheet portion 51P is subjected to a pressure as shown in FIG.
- the other cover sheet 51P has a contour mark (arc-shaped mark).
- a laminated sheet formed by laminating a long release sheet, an adhesive layer, and a base material is also wound up in a roll shape, transported and stored in the state of a scraped body, It may be pulled out and punched into a desired shape for use.
- a protective sheet is provided on the base sheet in a portion other than the main use part of the adhesive sheet, and a laminated sheet (Patent Document 3) provided with a thicker protective material than the adhesive sheet.
- the provided laminated sheet (Patent Document 4) was proposed. According to these laminated sheets, when used as a scraper, the protective material functions as a spacer, preventing defects from being formed on the adhesive sheet, or maintaining the smoothness of the adhesive layer surface. Is possible.
- Patent Document 1 Actual Fairness 6-18383
- Patent Document 2 JP-A-8-316175
- Patent Document 3 Japanese Patent Laid-Open No. 2004-35836
- Patent Document 4 Japanese Patent Laid-Open No. 2004-51914
- the laminated sheet requires a separate protective sheet paint or the like to form the protective material, the material cost is high, and the protective material forming process is complicated and the manufacturing cost is high. There is a problem of becoming higher.
- the present invention has been made in view of such a situation, and can be manufactured at a low cost, and can prevent a defect from being formed on an adhesive sheet when it is used as a scraped body.
- An object of the present invention is to provide a laminate sheet that can be produced at low cost and that can maintain the smoothness of the surface of the adhesive layer, a laminate body thereof, and a production method thereof. To do.
- the present invention provides a long release sheet, an adhesive sheet having a predetermined shape laminated on the release sheet, and the adhesive on the release sheet.
- the laminated sheet is characterized in that the thickness of the portion of the auxiliary sheet including the raised portion is larger than the thickness of the portion of the adhesive sheet (Invention 1).
- the auxiliary sheet provided on the release sheet may be provided on the same side as the adhesive sheet, or may be provided on the opposite side.
- the “base material” in the present specification may be a sheet having a desired material strength, or may be a release sheet.
- the “back surface of the release sheet” refers to a surface (generally a non-release treatment surface) on the release sheet on which the adhesive sheet or the adhesive layer is not laminated.
- half cut generally means that when the object is a laminate made of the base Z adhesive layer Z release material, the base Z adhesive that is the actual use part thereof This is a processing method that cuts only the layer and does not cut the release material.
- the force with which the blade is inserted halfway through the release material Is not limited to this, as long as the release material is not cut and the object of the present invention can be achieved, the release material does not need to have a blade, and the substrate Z pressure-sensitive adhesive layer is not yet reached. Only the blade enters May be.
- the above invention (Invention 1)
- Such a laminated sheet can be easily produced at low cost without requiring a protective material.
- the raised portion functions as a spacer when it is used as a scraper, and a gap is formed between the surface of the adhesive sheet and the back surface of the release sheet wound thereon.
- the adhesive sheet is prevented from being strongly pressed by the contour portion of the other adhesive sheet, and therefore, the adhesive sheet is restrained from being marked by reed pressure.
- there is a gap between the surface of the adhesive sheet and the back surface of the release sheet even if foreign matter such as fine dust is sandwiched between the laminated sheets. Therefore, the formation of dents due to foreign matters on the adhesive sheet is suppressed.
- the auxiliary sheet preferably has the same layer structure as the adhesive sheet (Invention 2).
- a laminated sheet having a coverable structure can be easily manufactured by knife-cutting a laminated body composed of a plurality of layers having the same shape.
- the present invention is a laminated sheet comprising a long release sheet, an adhesive layer laminated on the release sheet, and a substrate laminated on the adhesive layer, A laminated sheet characterized in that, on the surface side of the base material or the back surface side of the release sheet, a raised portion by half-cut is formed in a portion corresponding to a portion other than the main use portion of the adhesive layer.
- the “mainly used part of the adhesive layer” means a part where the surface of the adhesive layer requires smoothness.
- the above invention (Invention 4) can be easily produced at low cost without requiring a protective material.
- a strong laminated sheet when it is used as a scraper, it is raised The part functions as a spacer, and a gap is generated between the surface of the base material corresponding to the main use part of the adhesive layer and the back surface of the release sheet wound thereon. This prevents the laminated sheet from being strongly pressed against the main use part of the adhesive layer. Therefore, in the main part of the adhesive layer, the surface of the adhesive layer is suppressed from being distorted by the pressure, and the smoothness of the surface of the adhesive layer in the main part of the adhesive layer is maintained. be able to.
- the central portion in the width direction of the adhesive layer is a main use portion of the adhesive layer, and the raised portions are both ends in the width direction of the base material or the release sheet. It is preferable to be formed in a part (Invention 5).
- the raised portion is formed so that the planar shape thereof has an angle with respect to the longitudinal direction of the laminated sheet (Invention 6).
- the present invention provides a laminate sheet winding body obtained by winding the above-mentioned laminated sheet (Inventions 1 to 6) (Invention 7).
- the present invention is provided with a long release sheet, an adhesive sheet having a predetermined shape laminated on the release sheet, and the release sheet at a position different from the adhesive sheet.
- a laminated sheet having an auxiliary sheet is prepared, and a part where the auxiliary sheet is located or a part corresponding to the auxiliary sheet is cut and cut at any stage (the blade may be inserted from the surface side of the auxiliary sheet).
- the protruding portion may be inserted from the back side of the release sheet.
- a ridge is formed on the front side of the auxiliary sheet or the back side of the release sheet, and thus the thickness of the portion of the auxiliary sheet including the ridge is included.
- a method for producing a laminated sheet characterized in that the thickness is made thicker than the thickness of the part of the adhesive sheet (Invention 8).
- the present invention provides a laminate of a long release sheet, an adhesive layer, and a base material in that order.
- the laminated body is cut and cut off to remove unnecessary portions, and an adhesive sheet and an auxiliary sheet having a predetermined shape are formed.
- a part of the surface of the auxiliary sheet or the back side of the release sheet may be cut with a knife (the base surface side force may also be inserted, or the release sheet back side force may be applied).
- the present invention provides a method for producing a laminated sheet, characterized in that a raised portion is formed in (Invention 9).
- a long release sheet, an adhesive layer, and a base material are laminated in that order, and a portion other than the main use portion of the adhesive layer is positioned at an arbitrary stage. Cut the part corresponding to the part or the part other than the main use part of the adhesive layer (the blade may be inserted from the substrate surface side, or the release sheet back side force may be inserted).
- the present invention provides a method for producing a laminated sheet, characterized in that a raised portion is formed on the front surface side of the substrate or the back surface side of the release sheet (Invention 10).
- the laminated sheet (Invention 1 to 3) can be produced.
- the laminated sheet (Invention 1 to 3) can be produced.
- the laminated sheet (Inventions 4 and 5) can be produced.
- the present invention provides a laminate sheet scraped body, wherein the laminate sheet is wound up after the laminate sheet is produced by the method for producing a laminate sheet (Inventions 8 to 10).
- a manufacturing method is provided (Invention 11).
- the laminated sheet of the present invention can be easily produced at low cost without requiring a protective material. According to the strong laminate sheet of the present invention, it is possible to reduce the defects that can be formed on the adhesive sheet or to maintain the smoothness of the surface of the adhesive layer when used as a scraped body. In addition, according to the method for producing a laminated sheet of the present invention, a laminated sheet that can reduce defects that can be formed on an adhesive sheet when used as a scraped body at low cost without requiring a protective material. In addition, a laminated sheet capable of maintaining the smoothness of the adhesive layer surface can be produced.
- FIG. 1 is a cross-sectional view showing a method for manufacturing a laminated sheet according to a first embodiment of the present invention.
- FIG. 2 is a plan view of the laminated sheet according to the embodiment.
- FIG. 3 is an enlarged view of a raised portion in the laminated sheet according to the embodiment.
- FIG. 4 is a perspective view of a die cut roll used for manufacturing a laminated sheet according to the embodiment.
- FIG. 5 is a perspective view of a laminated sheet according to the embodiment.
- FIG. 6 is a perspective view of a laminated sheet trimming body according to the same embodiment.
- FIG. 7 is a cross-sectional view of a laminated sheet according to another embodiment of the present invention.
- FIG. 8 is a plan view of a laminated sheet according to another embodiment of the present invention.
- FIG. 9 is a cross-sectional view showing a method for producing a laminated sheet according to the second embodiment of the present invention.
- FIG. 10 is a perspective view of a laminated sheet according to the embodiment.
- FIG. 11 is a perspective view of a laminated sheet trimming body according to the same embodiment.
- FIG. 12 is a cross-sectional view of a laminated sheet according to another embodiment of the present invention.
- FIG. 13 is a perspective view of a conventional laminated sheet.
- FIG. 14 is a plan view of a cover sheet portion in a conventional laminated sheet.
- Cover sheet part adheresive sheet having a predetermined shape
- the cover sheet is bonded to the recording layer in the optical disc manufacturing process.
- the present invention is not limited to this and can be applied to various laminated sheets.
- FIG. 1 (a) to 1 (d) are cross-sectional views showing a method for producing a laminated sheet according to the first embodiment of the present invention
- FIG. 2 is a plan view of the laminated sheet according to the embodiment
- FIG. 4 is an enlarged view of a raised portion in the laminated sheet according to the embodiment
- FIG. 4 is a perspective view of a die-cut roll used for manufacturing the laminated sheet according to the embodiment
- FIG. 5 is a perspective view of the laminated sheet according to the embodiment.
- FIG. 6 and FIG. 6 are perspective views of the laminated sheet scraped body according to the same embodiment.
- a long release sheet 2A, an adhesive layer 3A, and a base material 4A are laminated.
- a laminated body is prepared.
- the release sheet 2A conventionally known ones can be used.
- polyethylene terephthalate film, resin film such as polypropylene film or dalasin paper, clay coat paper, laminate paper (mainly polyethylene laminate paper) ) And the like can be used after release treatment with a silicone release agent or the like.
- the thickness of the release sheet 2A is usually about 10 to 200 ⁇ m, preferably 20 to about LOO ⁇ m.
- the surface roughness (Ra) of the release surface of the release sheet 2A is set according to the smoothness to be imparted to the adhesive layer 3A. For example, when the laminated sheet is used as a cover sheet for an optical disc, it is usually 0. It is 5 m or less, preferably 0.1 ⁇ m or less.
- a pressure-sensitive adhesive (adhesive) is usually used.
- 1S is not limited to this, and may be, for example, an energy ray-curable adhesive.
- the pressure-sensitive adhesive type may be slippage, such as acrylic, polyester, urethane, rubber, or silicone, or may be a loose adhesive! / ⁇ .
- the adhesive layer 3A for example, a coating agent containing an adhesive constituting the adhesive layer 3A and, if desired, a solvent is prepared, and a kiss roll coater or a reverse roll coater is prepared.
- the coating may be applied to the release surface of the release sheet 2A using a coating machine such as a knife coater, roll knife coater, or die coater, and dried.
- the base material 4A is pressure-bonded onto the adhesive layer 3A thus formed.
- the thickness of the adhesive layer 3A is usually about 5 to about LOO ⁇ m, and preferably about 10 to 30 ⁇ m.
- the base material 4A in the present embodiment a material constituting a light receiving surface of an optical disk as a cover sheet of an optical disk recording layer can be exemplified.
- the material of the base material 4A is not particularly limited as long as it has sufficient light transmittance with respect to the wavelength range of light for reading information. However, in order to easily manufacture an optical disc, rigidity and flexibility are required. In order to store an optical disk, it is preferable that the temperature is stable.
- a resin such as polycarbonate, polymethylol methacrylate, or polystyrene can be used.
- the linear expansion coefficient of the substrate 4A is preferably substantially the same as the linear expansion coefficient of the optical disk substrate so that the optical disk does not warp at high temperatures.
- the base material 4A is preferably made of the same polycarbonate resin.
- the thickness of the substrate 4A is a force determined according to the type of the optical disk and the thickness of the other components of the optical disk. Usually, it is about 25 to 200 ⁇ m, preferably 50 to: LOO ⁇ m.
- the base material 4A may have a multilayer structure, for example, a hard coat layer may be formed on a polycarbonate film.
- the base material 4A in the present embodiment the same material as the release sheet 2A described above can be used.
- the release-treated surface of the substrate 4A is bonded to the adhesive layer 3A laminated on the release sheet 2A.
- the release sheet 2A is peeled from the adhesive layer 3A, the exposed adhesive layer 3A is attached to the recording layer of the optical disc, and then the adhesive layer 3A and the substrate 4A are attached.
- another base material a cover sheet base material for protecting the recording layer of the optical disk
- the adhesive layer 3A also has adhesive strength, it is possible to provide the exposed adhesive layer 3A with a concave and convex pattern such as a guide groove using a stamper.
- the base material 4A is prevented from penetrating the release sheet 2A as shown in FIG. 1 (b).
- the adhesive layer 3A is cut (nof cut), and the base material 4A and the adhesive layer 3A are divided into a cover sheet portion 51A (adhesive sheet), a pillow portion 52A (corresponding to the auxiliary sheet of the present invention), and the remaining portion 53A.
- Split and hippopotamus A center hole portion 54A is formed by punching the center portion of one sheet portion 51A.
- the half cut and punching may be performed by a conventional method, for example, using a punching device or the like.
- the planar shape of the cover sheet portion 51A is the same disk shape as that of the optical disk.
- the planar shape of the pillow part 52A is recessed toward the side end of the laminate along the outer periphery of the cover sheet part 51A, and between the cover sheet parts 51A, the cover sheet part 51A It protrudes so as to enter between 51A, and it is wavy as a whole.
- the pillow portion is not penetrated through the release sheet 2A.
- the outer end of 52A is cut and cut off to form a raised portion 6A by the half cut.
- the height h of the ridge 6A (the height from the surface of the flat surface of the substrate 4A to the apex of the ridge 6A) is preferably 5 to 100 ⁇ m, particularly 10 to 50 ⁇ m. Preferably there is.
- the height h of the raised portion 6A is less than 5 m, the effect of the present invention cannot be sufficiently obtained.
- the height h of the raised portion 6A exceeds 100 m, when the laminated sheet 1A is wound, The diameter (volume) of the obtained scraped body may become too large.
- the cutting blade C penetrates the base material 4A and the adhesive layer 3A, and the release sheet 2A is also slightly cut, but the raised portion having a desired height is formed.
- the depth of the half cut is not particularly limited. For example, it may be a half cut to the bottom surface of the adhesive layer 3A or to the middle of the adhesive layer 3A. Alternatively, it may be a half-cut having a depth up to the bottom surface of the substrate 4A or halfway through the substrate 4A. However, if the depth of the half cut is too deep, the strength of the release sheet 2A is reduced and the laminated sheet 1A may be broken. Therefore, the thickness of the remaining portion that is not cut by the half cut should be 10 / zm or more, especially 20 It is preferable to set it to ⁇ m or more.
- the planar shape of the raised portion 6A in the present embodiment is wavy as shown in FIG. Power It is not limited to this. However, if the planar shape of the raised portion 6A is a straight line parallel to the longitudinal direction of the laminated sheet 1A, when the laminated sheet 1A is wound into a roll and used as a scraped body, the raised portion is in one plane. Since the raised portion 6A overlaps with the position of 6A and the scraped body is easily broken by an external force, the raised portion 6A has an angle with respect to the longitudinal direction of the stacked sheet 1A. Preferred to be formed.
- the raised portion 6A is formed at the both end portions of the laminated sheet 1A, whereby the effect of the raised portion 6A can be effectively exhibited. Specifically, it is preferable to form the raised portion 6A so that the outermost end portion of the raised portion 6A is within 20 mm from the side end surface of the laminated sheet 1A.
- the cutting blade C for example, the one provided on the outer periphery of the die cut roll R1 as shown in FIG. 4 can be used.
- the raised portion 6A can be formed efficiently by half-cutting by passing the laminate between the die-cut roll R1 and the anvil roll R2 provided to face the die-cut roll R1.
- the die cutting tool R1, together with the cutting blade C, is a half-cutting cutting blade and Z or center for dividing the substrate 4A and the adhesive layer 3A into a cover sheet portion 51A, a pillow portion 52A, and a remaining portion 53A. It is possible to have a punching blade that forms the tar hole 54A.
- the shape of the cutting edge C of the cutting edge C is not particularly limited as long as the raised portion 6A having a desired height is formed, but generally the raised portion 6A having a higher dull force than the sharp one is formed. Can be formed.
- a blade edge angle of 60 to: LOO ° is preferably used.
- the thickness of the portion where the raised portion 6A exists in the pillow portion 52A is thicker than the thickness of the cover sheet portion 51A by the height of the raised portion 6A.
- the surface of the cover sheet portion 51A and the peeling sheet are removed even if foreign matter such as fine dust is sandwiched between the laminated sheets 1A that are wound. Since there is a gap between the back surface of 2A, if the diameter of the foreign matter is smaller than the size of the gap, it is possible to prevent the cover sheet portion 51A from forming a dent due to the foreign matter.
- the effect is that the dents are formed in the plurality of cover sheets that are stacked, but the laminated sheet according to the present embodiment
- the release sheet 2A and the cover sheet portion 51A can be displaced by the size of the gap in the radial direction of the cutting body, so that a foreign substance having a diameter larger than the size of the gap is covered by the cover sheet. Even if it adheres to the part 51A, the influence on the other cover sheet part 51A is suppressed, and the formation of dents due to foreign matters on the plurality of cover sheet parts 51A can be prevented.
- the laminated sheet 1A according to the present embodiment is provided with the pillow portion 52A.
- the pillow portion 52A having the same thickness as the cover sheet portion 51A is provided.
- the laminated sheet 1A according to the present embodiment it is possible to drastically reduce the defects that can be formed in the cover sheet portion 51A when the laminated sheet 1A is used as a scraped body. .
- the division of the base material 4 ⁇ / adhesive layer 3A and the formation of the center hole portion 54 (Fig. 1 (b)) and the separation and removal of the remaining portion 53A (Fig. 1 (c)) are performed.
- the force applied before the formation of the ridge 6A (FIG. 1 (d)) The present invention is not limited to this.
- the formation of the ridge 6A before the removal and removal of the remaining 53A (FIG. 1 (c)) (Fig. 1 (d)), and after forming the raised portion 6A first (Fig. 1 (d)), dividing the base material 4 ⁇ and adhesive layer 3A and the center hole portion 54A (Fig. 1 (b)) and the remaining 53A can be removed (Fig. 1 (c)).
- the base material 4A surface side force of the pillow portion 52A is half-cut to form the raised portion 6A on the surface side of the base material 4A of the pillow portion 52A.
- the present invention is limited to this.
- half-cutting may be performed from the back side of both ends of the release sheet 2A to form a raised portion 6A' on the back side of both ends of the release sheet 2A.
- the raised portion 6A ′ formed on the back side of the release sheet 2A functions as a spacer. A slight gap is generated between the front surface and the back surface of the release sheet 2A wound on the surface, and the same effect as described above can be obtained.
- the planar shape of the raised portion 6A is a wave shape, but the present invention is not limited to this, for example, a plurality of laminated sheets 11A shown in Fig. 8 (a).
- the X-shaped raised portions 61A arranged in parallel may be used, or a plurality of oblique-shaped raised portions 62A arranged in parallel, such as the laminated sheet 12A shown in FIG. 8 (b), or FIG. 8 (c).
- a plurality of rod-like raised portions 63A arranged in parallel perpendicular to the longitudinal direction of the laminated sheet 13A may be used.
- a laminated sheet requiring smoothness on the surface of the adhesive layer for example, an adhesive layer is used to bond a recording layer protecting cover sheet in an optical disc or a display film such as a PDA.
- An explanation will be given taking the laminated sheet used as an example.
- FIG. 9 (a) to 9 (d) are cross-sectional views showing a method for manufacturing a laminated sheet according to the second embodiment of the present invention
- FIG. 10 is a perspective view of the laminated sheet according to the embodiment
- FIG. FIG. 4 is a perspective view of a laminated sheet trimming body according to the same embodiment.
- the adhesive layer 3B was formed on the release treatment surface of the long release sheet 2B. Thereafter, as shown in FIG. 9 (c), the base material 4B is pressure-bonded to the surface of the adhesive layer 3B.
- release sheet 2B the same one as the release sheet 2A in the first embodiment can be used.
- the adhesive layer 3B is peeled from the release sheet 2B, and the base material 4B is bonded to a predetermined object to be bonded.
- the release sheet 2B and the base material 4B may be separated from each other, and may be used to adhere predetermined objects to be bonded to each other.
- the central portion in the width direction is the main use portion (the portion where the surface of the adhesive layer requires smoothness).
- the adhesive constituting the adhesive layer 3B
- various types of adhesives can be selected according to the purpose of use of the adhesive layer 3B or the substrate 4B.
- the adhesive may be a pressure sensitive adhesive (adhesive) or a curable adhesive.
- the pressure-sensitive adhesive may be an adhesive, such as acrylic, polyester, urethane, rubber, or silicone.
- the curable adhesive include an energy ray curable adhesive and a radiation curable adhesive such as a thermosetting adhesive.
- the thickness of the adhesive layer 3B is usually about 5 to about LOO / zm, and preferably about 10 to 30 m.
- the adhesive layer 3B can be formed by the same method as the method for forming the adhesive layer 3A in the first embodiment.
- the substrate 4B may be bonded to a predetermined object to be bonded by the adhesive layer 3B, or may be a release sheet peeled from the adhesive layer 3B.
- the base material 4B is used as an adhesive sheet together with the adhesive layer 3B, and the central part in the width direction is the main use part.
- the substrate 4B is used as an adhesive sheet
- various types of materials can be selected as the material of the substrate 4B depending on the purpose of use of the substrate 4B.
- a resin such as polycarbonate, polymethyl methacrylate, polystyrene or the like can be selected as the material of the base material 4B.
- cellulose esters such as cenorelose diacetate, cenorelose triacetate, cenorelose acetate butyrate, polyethylene terephthalate, polybutylene terephthalate Polyesters such as polyethylene, polyethylene, polypropylene, etc., polyamides, polyimides, polyvinyl chloride, vinyl methacrylate, polymethyl methacrylate, polycarbonate, polyurethane, etc. can be selected as the material for the base material 4B.
- the surface of the base material made of fat can be used after being subjected to an antireflection treatment or an antiglare treatment.
- the thickness of the substrate 4B is a force determined according to the purpose of use of the substrate 4B. Usually, it is about 25 to 300 ⁇ m, preferably It is about 50 to 200 ⁇ m.
- the substrate 4B is a release sheet
- the same material as that of the release sheet 2B can be selected as the material of the substrate 4B.
- the method for forming the raised portion 6B, the depth of the half cut, and the height and the planar shape of the raised portion 6B are the same as those of the raised portion 6A in the first embodiment.
- the laminated sheet 1B manufactured as described above is laminated on the long release sheet 2B and the release sheet 2B release-treated surface, and the central part in the width direction is the main use part.
- the adhesive layer 3B and the base material 4B laminated on the adhesive layer 3B are formed, and ridges 6B having a planar view wave shape are formed at both ends of the base material 4B.
- the raised portions 6B formed on both side ends of the base material 4B function as a spacer, A slight gap is formed between the surface of the center part in the width direction of the base material 4B and the back surface of the release sheet 2B wound thereon. For this reason, it is possible to prevent the laminated sheet 1B from being strongly pressed against the main use part of the adhesive layer 3B. Therefore, the main use part of the adhesive layer 3B is prevented from being crushed on the surface of the adhesive layer due to the pressure, and the smoothness of the surface of the adhesive layer in the main use part of the adhesive layer 3B is maintained. be able to.
- the laminated sheet 1B when the laminated sheet 1B is wound, even if a foreign matter such as fine dust is sandwiched between the laminated sheets 1B, the surface of the substrate 4B and the back surface of the release sheet 2B Therefore, if the diameter of the foreign matter is smaller than the size of the gap, the formation of a dent due to the foreign matter is prevented in the base material 4B and the adhesive layer 3B. Furthermore, even with a conventional scraped body, even if one foreign object is caught, However, in the laminated sheet 1B according to this embodiment, the release sheet 2B, the adhesive layer 3B, and the base material 4B are formed.
- the main body of the base material 4B and the adhesive layer 3B is cut into a desired shape by also drawing the laminating sheet 1B.
- the release sheet 2B force may be peeled off.
- the cutting can be performed by a conventional method. For example, it can be performed using a punching device or the like.
- the surface of the adhesive layer of the cut adhesive layer 3B is kept smooth, for example, when the adhesive layer 3B is used for bonding a cover sheet for recording layer protection on an optical disc, It is possible to prevent errors in reading and writing data due to the adhesive layer 3B, and when the adhesive layer 3B is used for bonding an antireflection film for a display, the adhesive layer 3B does not impair the transparency of the display or the clarity of the image.
- the present invention is not limited to this, and is shown in FIG.
- the ridges 6B ′ may be formed on the back side of the both side ends of the release sheet 2B by performing half-cutting force on both sides of the release sheet 2B.
- the raised portion 6B ′ formed on the back side of the release sheet 2B functions as a spacer, so the center of the base material 4B in the width direction A powerful gap is generated between the surface of the part and the back surface of the release sheet 2B wound on the surface, and the same effect as described above can be obtained.
- the planar shape of the raised portion 6B is a wave shape, but the present invention is not limited to this, for example, an X shape as shown in FIGS. 8 (a) to (c). Alternatively, it may be a ridge such as a diagonal line or a bar.
- the shape of the pillow portion 52A in the laminated sheet 1A may be a band shape having a constant width.
- the both ends of the laminated sheet are passed through two opposing gears to make unevenness. And a method of forming holes at both ends of the laminated sheet with a laser, a hot needle, etc., and forming a raised portion at the periphery of the hole.
- the spacer function may be lost at the portion where the concave and convex portions overlap, causing problems due to negative pressure. Then, there is a problem that the manufacturing cost of the laminated sheet becomes very high.
- Polyisocyanate compound as a cross-linking agent for 100 parts by mass of copolymer of 97 parts by mass of n-butyl acrylate and 3 parts by mass of 2-hydroxyethyl acrylate (Takeda Pharmaceutical) 1 part by weight of Takenate D-140N, manufactured by Co., Ltd. was added, and 200 parts by weight of toluene as a solvent was added as the adhesive coating agent.
- the adhesive coating agent was applied on the release surface of m) with a knife coater so that the thickness after drying was 25 m, and dried at 100 ° C. for 3 minutes.
- a base material made of a polycarbonate film (Pure Ace C110-75, thickness: 75 m) is pressure-bonded to the pressure-sensitive adhesive layer formed in this way, and a long length of 150 mm width and 100 m length is obtained.
- a laminate was produced.
- the laminate is passed between a die cut roll having a wavy cut blade (blade angle: 60 to 90 °) on the outer periphery and an anvil roll provided to face the die cut roll.
- a die cut roll having a wavy cut blade (blade angle: 60 to 90 °) on the outer periphery and an anvil roll provided to face the die cut roll.
- both ends in the width direction of the base material and the adhesive layer are half-cut in a plane view as shown in Fig. 2 (the remaining uncut portion) Thickness: 20 m), a raised portion was formed by half-cut.
- the height of this ridge was about 15-20 ⁇ m.
- the laminated sheet thus produced was wound around an ABS core having a diameter of 3 inches with an initial winding tension of 12 N and a taper ratio of 50% to obtain a scraped body (see Fig. 6).
- Example 1 a laminated sheet was produced in the same manner as in Example 1 except that the raised part was not formed on the laminated body with a die-cut roll, and the obtained laminated sheet was cut in the same manner as in Example 1. It was wound around the core under conditions to obtain a scraped body.
- the laminated sheet used as the green body in Example 1 and Comparative Example 1 was left in an atmosphere at 23 ° C. and a relative humidity of 50% for 1 week, and then the state of the cover sheet portion was observed by a mercury lamp projection method.
- the mercury lamp projection method uses an adhesive sheet (cover sheet) peeled from the release sheet between the mercury lamp (manufactured by Usio Electric Co., Ltd., light source: SX-01250HQ, mercury lamp power supply: B-H250) and the white projection screen. This was done by visually observing the projection of the adhesive sheet on the projection screen. The distance between the mercury lamp and the adhesive sheet was 170 cm, and the distance between the adhesive sheet and the projection screen was 30 cm.
- the present invention provides an adhesive sheet that is desirably free of defects, such as an adhesive sheet for manufacturing an optical disc (a cover sheet for protecting a recording layer, a sheet having a stamper-receiving layer in which guide grooves or pits are formed, etc.) It is useful for adhesive sheets that require smoothness on the surface of the agent layer, such as adhesive sheets for bonding display films such as PDAs.
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
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- Manufacturing & Machinery (AREA)
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- Adhesive Tapes (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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CN2006800055741A CN101124285B (zh) | 2005-02-21 | 2006-02-03 | 层叠片、层叠片的卷绕体及它们的制造方法 |
KR1020077021002A KR101278070B1 (ko) | 2005-02-21 | 2006-02-03 | 적층시트, 적층시트의 권취체 및 그들의 제조방법 |
EP06712976A EP1854855B1 (en) | 2005-02-21 | 2006-02-03 | Multilayer sheet, winding of multilayer sheet, and method for producing them |
US11/884,467 US8323761B2 (en) | 2005-02-21 | 2006-02-03 | Laminate sheet and laminate sheet roll |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2005043758A JP4614126B2 (ja) | 2005-02-21 | 2005-02-21 | 積層シート、積層シートの巻取体およびそれらの製造方法 |
JP2005-043758 | 2005-02-21 |
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WO2006087921A1 true WO2006087921A1 (ja) | 2006-08-24 |
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US (1) | US8323761B2 (ja) |
EP (1) | EP1854855B1 (ja) |
JP (1) | JP4614126B2 (ja) |
KR (1) | KR101278070B1 (ja) |
CN (1) | CN101124285B (ja) |
TW (1) | TW200640677A (ja) |
WO (1) | WO2006087921A1 (ja) |
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KR102341088B1 (ko) * | 2014-06-30 | 2021-12-20 | 린텍 가부시키가이샤 | 점착 시트 및 점착 시트의 제조 방법 |
JP6362526B2 (ja) * | 2014-12-04 | 2018-07-25 | 古河電気工業株式会社 | ウエハ加工用テープ |
US10066396B1 (en) * | 2016-10-17 | 2018-09-04 | Firestone Building Products Co., LLC | Roofing composite scoring tool and methods of use |
WO2019027846A1 (en) * | 2017-07-31 | 2019-02-07 | 3M Innovative Properties Company | POLYMER SURFACE FILM HAVING DOUBLE CONTOUR DEFINING GEOMETRIC FORMS INSIDE THE SAME |
JP6488343B2 (ja) * | 2017-09-14 | 2019-03-20 | リンテック株式会社 | 粘着シート |
JP6916836B2 (ja) * | 2019-05-14 | 2021-08-11 | 日東電工株式会社 | 積層体の製造方法 |
JP6803426B2 (ja) * | 2019-05-14 | 2020-12-23 | 日東電工株式会社 | 積層体およびその製造方法 |
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- 2006-02-03 EP EP06712976A patent/EP1854855B1/en not_active Expired - Fee Related
- 2006-02-03 CN CN2006800055741A patent/CN101124285B/zh active Active
- 2006-02-03 KR KR1020077021002A patent/KR101278070B1/ko active IP Right Grant
- 2006-02-03 US US11/884,467 patent/US8323761B2/en active Active
- 2006-02-08 TW TW095104209A patent/TW200640677A/zh unknown
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Also Published As
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US20090208688A1 (en) | 2009-08-20 |
US8323761B2 (en) | 2012-12-04 |
EP1854855A1 (en) | 2007-11-14 |
KR101278070B1 (ko) | 2013-06-24 |
TWI340086B (ja) | 2011-04-11 |
JP2006224581A (ja) | 2006-08-31 |
EP1854855A4 (en) | 2010-05-26 |
EP1854855B1 (en) | 2011-10-12 |
CN101124285B (zh) | 2011-03-23 |
JP4614126B2 (ja) | 2011-01-19 |
CN101124285A (zh) | 2008-02-13 |
KR20070104468A (ko) | 2007-10-25 |
TW200640677A (en) | 2006-12-01 |
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