WO2013146145A1 - Film de base pour transfert hydraulique - Google Patents

Film de base pour transfert hydraulique Download PDF

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Publication number
WO2013146145A1
WO2013146145A1 PCT/JP2013/056148 JP2013056148W WO2013146145A1 WO 2013146145 A1 WO2013146145 A1 WO 2013146145A1 JP 2013056148 W JP2013056148 W JP 2013056148W WO 2013146145 A1 WO2013146145 A1 WO 2013146145A1
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WO
WIPO (PCT)
Prior art keywords
hydraulic transfer
film
base film
blade
less
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PCT/JP2013/056148
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English (en)
Japanese (ja)
Inventor
勝啓 高藤
磯▲ざき▼　孝徳
喬士 練苧
秀行 秦
弘治 笹井
Original Assignee
株式会社クラレ
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Application filed by 株式会社クラレ filed Critical 株式会社クラレ
Priority to JP2013527216A priority Critical patent/JP6106588B2/ja
Priority to KR1020147026179A priority patent/KR102038167B1/ko
Priority to CN201380014947.1A priority patent/CN104185559B/zh
Publication of WO2013146145A1 publication Critical patent/WO2013146145A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
    • B26D1/14—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter
    • B26D1/24—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter coacting with another disc cutter
    • B26D1/245—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter coacting with another disc cutter for thin material, e.g. for sheets, strips or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C1/00—Processes, not specifically provided for elsewhere, for producing decorative surface effects
    • B44C1/16—Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like
    • B44C1/165—Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like for decalcomanias; sheet material therefor
    • B44C1/17—Dry transfer
    • B44C1/1733—Decalcomanias applied under pressure only, e.g. provided with a pressure sensitive adhesive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/02—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a stationary cutting member
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/0006—Cutting members therefor
    • B26D2001/0053—Cutting members therefor having a special cutting edge section or blade section

Definitions

  • the present invention relates to a base film for hydraulic transfer for forming a film for hydraulic transfer used when printing on a transferred body such as a molded body having a three-dimensional surface or a curved surface with unevenness, and a method for producing the same.
  • the present invention relates to a pressure transfer method.
  • a means for forming a printed layer for imparting design properties or improving surface physical properties on the surface of a molded body having uneven three-dimensional surfaces or curved surfaces it is suitable for transfer onto a water-soluble or water-swellable film surface.
  • a method using a hydraulic transfer film on which a printing layer is formed is known. For example, in Patent Document 1, after floating on the liquid surface of a liquid represented by water with the printing surface of the hydraulic transfer film facing up, various molded bodies that are transferred bodies are pushed in from above. In addition, a method for transferring a printing layer to the surface of a transfer medium using hydraulic pressure is described.
  • the base film for hydraulic transfer used for manufacturing the film for hydraulic transfer is wound into a roll after being continuously formed in the form of a long film, and packed in the form of a roll.
  • the roll that has been transported to the secondary processing manufacturer, etc., and then unpacked is mounted on a feeding device, and the hydraulic transfer base film unrolled from the roll is subjected to secondary processing such as printing, so that the hydraulic transfer film It is often said.
  • the present invention has been made in order to solve the above-described problems, and is a base film for hydraulic transfer that is difficult to break when unrolled from the roll, a manufacturing method thereof, and a roll formed by winding the base film for hydraulic transfer.
  • An object of the present invention is to provide a hydraulic transfer film obtained by printing on the surface of the hydraulic transfer base film, a method for producing the same, and a hydraulic transfer method using the hydraulic transfer film.
  • the present inventors generate a slit when the film is slit for the purpose of removing both ends of the long film, adjusting the width, dividing it into a plurality of films, and the like. It has been found that by controlling the surface shape of the slit cross section (the cross section of the film produced by the slit), the occurrence of breakage of the hydraulic transfer base film is greatly reduced when the hydraulic transfer base film is fed out from the roll. It was. The present inventors have further studied based on the findings and completed the present invention.
  • the present invention [1] When the surface roughness of the slit cross section is measured in the thickness direction, when the maximum peak height (Rp) is 5 ⁇ m or more, the position where the maximum peak height (Rp) is given is 20 to 80% from one side in the thickness direction.
  • the base film for hydraulic transfer [2] The base film for hydraulic transfer according to the above [1], which is a polyvinyl alcohol film, [3] The base film for hydraulic transfer according to the above [2], wherein the saponification degree of polyvinyl alcohol constituting the polyvinyl alcohol film is 80 to 99 mol%, [4] The base film for hydraulic transfer according to the above [2] or [3], wherein the degree of polymerization of polyvinyl alcohol constituting the polyvinyl alcohol film is 500 to 3000, [5] The hydraulic transfer base film according to any one of [1] to [4], wherein the dissolution time in water at 20 ° C.
  • a method of manufacturing a base film for hydraulic transfer including a step of slitting the film using a shear blade, the blade edge angle of the upper blade being 30 to 90 °, and the amount of lap between the upper blade and the lower blade Is 0.1 to 0.8 mm, the holding angle is 2 to 100 °, and there is no driving of the upper blade
  • a method for producing a hydraulic transfer base film comprising a step of slitting the film with a leather blade, wherein the maximum height (Rz) of the blade edge of the leather blade is less than 1 ⁇ m
  • [8] A roll formed by winding up the hydraulic transfer base film of any one of [1] to [5] above, [9] A hydraulic transfer film obtained by printing on the surface of the hydraulic transfer base film of any one of [1] to [5] above
  • a method for producing a hydraulic transfer film comprising: a step of feeding out the hydraulic transfer base film from the roll of [8]; and a step of printing
  • a hydraulic transfer base film that is difficult to break when unrolled from a roll, a method for manufacturing the same, a roll formed by winding up the hydraulic transfer base film, and a surface of the hydraulic transfer base film.
  • a hydraulic transfer film formed by printing, a production method thereof, and a hydraulic transfer method using the hydraulic transfer film are provided.
  • FIG. 1 It is the schematic which shows an example of the leather blade which can be used in this invention, Comprising: (a) is a side view, (b) is a front view. It is the schematic which expanded the thick frame part of FIG. It is the schematic (side view with respect to the flow direction of a film) which shows an example when slitting a film with a leather blade (at the time of a leather cut). It is the schematic (schematic diagram which shows the position which measures the roughness of the blade edge
  • the present invention is described in detail below.
  • the position where the maximum peak height (Rp) is given when the maximum peak height (Rp) is 5 ⁇ m or more.
  • the arithmetic average height (Ra) is 2 ⁇ m or less when the position is 20 to 80% from one side in the direction. There is an excellent effect that it is difficult to break when unrolling from a roll.
  • the cause of the breakage when the hydraulic transfer base film is unwound from the roll is the welding of the roll end face. That is, when moisture adheres to the surface of the roll, particularly the end face of the roll, the moisture penetrates from the end face of the roll and quickly spreads into the gaps of the base film for hydraulic transfer, while swelling and dissolving the surface of the base film for hydraulic transfer. Further, it is presumed that local welding is caused between the contacting base films for hydraulic transfer by drying again while penetrating into the base film for hydraulic transfer.
  • welding between the base films for hydraulic transfer generated in this way is strong and weak, but especially strong welding that causes breakage is removal of both ends of the long film, adjustment of the width, division into multiple films
  • the whisker the part where the end face was stretched at the time of slitting
  • the slit cross section the cross section of the film generated by the slit
  • the thickness direction of the slit cross section means a direction perpendicular to the flow direction of the slit cross section (see FIGS. 1 and 2).
  • the present invention it is considered that the above-mentioned whiskers are present when the maximum peak height (Rp) when the surface roughness of the slit cross section is measured in the thickness direction is 5 ⁇ m or more.
  • the present invention requires that the whiskers are in the central portion in the thickness direction of the slit cross section, which is difficult to come into contact with other slit cross sections.
  • the position (beard position) that gives the maximum peak height (Rp) needs to be 20 to 80% from one side in the thickness direction, and should be 25 to 75%. It is particularly preferable that the position is 30 to 70%. Note that the lower end of the slit in the thickness direction is 0%, and the upper end is 100%. If the position that gives the maximum peak height (Rp) is 20 to 80% of the thickness direction, the whiskers are difficult to come into contact with other slit sections, so that strong welding that causes breakage is unlikely to occur (see FIG. 3). reference).
  • the arithmetic average height (Ra) in the thickness direction is required to be 2 ⁇ m or less, preferably 1.8 ⁇ m or less, in order to suppress breakage when unrolling from the roll. It is particularly preferable that the thickness is 5 ⁇ m or less.
  • the arithmetic average height (Ra) in the thickness direction is 2 ⁇ m or less, the slit is satisfactorily slit, and strong welding that causes breakage hardly occurs (see FIG. 4).
  • the maximum peak height (Rp) and the arithmetic average height (Ra) are defined in JIS B 0601: 2001, and the maximum peak height (Rp) and the arithmetic average height (Ra) are respectively in the thickness direction. Is obtained as the maximum peak height (Rp) and arithmetic mean height (Ra) in the roughness curve of the entire thickness direction obtained when the surface roughness of the slit cross section is measured, and specifically described later in the examples. It can ask for.
  • a water-soluble film can be used as the base film for hydraulic transfer of the present invention.
  • 1 selected from polyvinyl alcohol, carboxymethylcellulose, hydroxyethylcellulose, polyvinylpyrrolidone, polyacrylic acid or a salt thereof, starch and gelatin.
  • the film formed from seeds or two or more kinds can be used.
  • the polyvinyl alcohol film is preferably used because the required mechanical strength and moisture resistance during handling can be controlled by changing various conditions such as the degree of polymerization, the degree of saponification, and the addition of additives such as starch. It is done.
  • the base film for hydraulic transfer is a polyvinyl alcohol film
  • the PVA forming the PVA film may be vinyl acetate, vinyl formate, or vinyl propionate. Saponifies polyvinyl esters obtained by polymerizing one or more of vinyl esters such as vinyl butyrate, vinyl pivalate, vinyl versatate, vinyl laurate, vinyl stearate, vinyl benzoate and isopropenyl acetate Can be used.
  • vinyl esters vinyl acetate is preferable from the viewpoints of ease of production of PVA, availability, cost, and the like.
  • the polyvinyl ester is preferably obtained using only one or two or more vinyl esters as monomers, and more preferably obtained using only one vinyl ester as a monomer. However, as long as it does not impair the effects of the present invention, it may be a copolymer of one or more vinyl esters and other monomers copolymerizable therewith.
  • Examples of the other monomer copolymerizable with the vinyl ester include ⁇ -olefins having 2 to 30 carbon atoms such as ethylene, propylene, 1-butene, and isobutene; (meth) acrylic acid or a salt thereof; (Meth) methyl acrylate, (meth) ethyl acrylate, (meth) acrylate n-propyl, (meth) acrylate i-propyl, (meth) acrylate n-butyl, (meth) acrylate i-butyl, ( (Meth) acrylic acid esters such as t-butyl (meth) acrylate, 2-ethylhexyl (meth) acrylate, dodecyl (meth) acrylate, octadecyl (meth) acrylate; (meth) acrylamide, N-methyl ( (Meth) acrylamide, N-ethyl (meth) acrylamide, N,
  • Vinyl ether vinyl cyanide such as (meth) acrylonitrile
  • vinyl halide such as vinyl chloride, vinylidene chloride, vinyl fluoride, vinylidene fluoride
  • Allyl compounds such as allyl acetate and allyl chloride; maleic acid or its salts, esters or acid anhydrides; itaconic acid or its salts, esters or acid anhydrides
  • vinylsilyl compounds such as vinyltrimethoxysilane; unsaturated sulfonic acids be able to.
  • Said polyvinyl ester can have a structural unit derived from 1 type, or 2 or more types of an above described other monomer.
  • the proportion of structural units derived from the other monomers described above in the polyvinyl ester is preferably 25 mol% or less based on the number of moles of all structural units constituting the polyvinyl ester, and is 15 mol%. More preferably, it is more preferably 5 mol% or less. When the ratio exceeds 25 mol%, the affinity between the hydraulic transfer base film and the printing layer tends to be reduced.
  • the above PVA may be modified with one or two or more types of graft copolymerizable monomers as long as the effects of the present invention are not impaired.
  • the graft copolymerizable monomer include unsaturated carboxylic acids or derivatives thereof; unsaturated sulfonic acids or derivatives thereof; ⁇ -olefins having 2 to 30 carbon atoms, and the like.
  • the proportion of structural units derived from the graft copolymerizable monomer in PVA is preferably 5 mol% or less based on the number of moles of all structural units constituting PVA.
  • the above PVA may have a part of its hydroxyl group cross-linked or not cross-linked. Moreover, said PVA may react with aldehyde compounds, such as acetaldehyde and a butyraldehyde, etc. to form an acetal structure, and the said PVA does not react with these compounds and does not form an acetal structure. May be.
  • aldehyde compounds such as acetaldehyde and a butyraldehyde, etc.
  • the polymerization degree of the above PVA is preferably in the range of 500 to 3000, more preferably in the range of 700 to 2800, and still more preferably in the range of 1000 to 2500.
  • the polymerization degree of PVA is not less than the above lower limit, breakage due to insufficient mechanical strength of the obtained base film for hydraulic transfer can be suppressed.
  • the degree of polymerization of PVA is less than or equal to the above upper limit, the production efficiency in producing a hydraulic transfer base film is improved, and the water transferability of the hydraulic transfer base film and thus the hydraulic transfer film is improved. It is possible to suppress the decrease, and it becomes easy to perform hydraulic transfer at an economical process speed.
  • the polymerization degree of PVA as used in this specification means the average degree of polymerization measured according to description of JIS K6726-1994.
  • the degree of saponification of the above PVA is preferably in the range of 80 to 99 mol%, more preferably in the range of 83 to 96 mol%, and still more preferably in the range of 85 to 90 mol%. .
  • the degree of saponification of PVA refers to the total number of moles of structural units (typically vinyl ester units) that can be converted into vinyl alcohol units by saponification and the vinyl alcohol units of PVA. The proportion (mol%) occupied by the number of moles of vinyl alcohol units.
  • the degree of saponification can be measured according to the description of JIS K6726-1994.
  • the plasticizer is preferably a polyhydric alcohol, and specific examples thereof include ethylene glycol, glycerin, propylene glycol, diethylene glycol, diglycerin, triethylene glycol, tetraethylene glycol, and trimethylolpropane.
  • the plasticizer content in the PVA film is preferably 20 parts by mass or less and more preferably 15 parts by mass or less with respect to 100 parts by mass of PVA. When content of a plasticizer exceeds 20 mass parts, blocking of a PVA film may arise.
  • the PVA film contains a water-soluble polymer other than starch and / or PVA.
  • starch examples include natural starches such as corn starch, potato starch, sweet potato starch, wheat starch, rice starch, tapioca starch, and sago starch; processed starches that have been subjected to etherification, esterification, oxidation, etc. In particular, modified starches are preferred.
  • the starch content in the PVA film is preferably 15 parts by mass or less, and more preferably 10 parts by mass or less with respect to 100 parts by mass of PVA. When the starch content exceeds 15 parts by mass, the impact resistance of the base film for hydraulic transfer and the film for hydraulic transfer is lowered and brittle, and the process passability may be reduced.
  • water-soluble polymers other than PVA include, for example, dextrin, gelatin, glue, casein, shellac, gum arabic, polyacrylic acid amide, sodium polyacrylate, polyvinyl methyl ether, a copolymer of methyl vinyl ether and maleic anhydride, Examples thereof include a copolymer of vinyl acetate and itaconic acid, polyvinyl pyrrolidone, cellulose, acetyl cellulose, acetyl butyl cellulose, carboxymethyl cellulose, methyl cellulose, ethyl cellulose, hydroxyethyl cellulose, sodium alginate and the like.
  • the content of the water-soluble polymer other than PVA in the PVA film is preferably 15 parts by mass or less and more preferably 10 parts by mass or less with respect to 100 parts by mass of PVA. If the content of the water-soluble polymer other than PVA exceeds 15 parts by mass, the solubility and dispersibility of the hydraulic transfer base film may be reduced during hydraulic transfer.
  • the PVA film contains a boron compound or a surfactant.
  • the boron compound boric acid and borax are preferable.
  • the content of the boron compound in the PVA film is preferably 5 parts by mass or less and more preferably 3 parts by mass or less with respect to 100 parts by mass of PVA. If the boron-based compound content exceeds 5 parts by mass, the water-solubility of the hydraulic transfer base film and the hydraulic transfer film may decrease, making it difficult to perform hydraulic transfer at an economical process speed. is there.
  • the surfactant is not particularly limited, and known anionic surfactants, cationic surfactants, nonionic surfactants, and the like can be used.
  • the content of the surfactant in the PVA film is preferably 5 parts by mass or less and more preferably 1 part by mass or less with respect to 100 parts by mass of PVA. When the content of the surfactant exceeds 5 parts by mass, the hydraulic transfer base film is likely to be in close contact, and the handleability may be reduced.
  • the PVA film can contain other components such as a heat stabilizer, an ultraviolet absorber, an antioxidant, a colorant, and a filler.
  • the content of these other components is usually 10 parts by mass or less, more preferably 5 parts by mass or less with respect to 100 parts by mass of PVA, although it depends on the type. If the content of other components exceeds 10 parts by mass, the impact resistance of the hydraulic transfer base film may deteriorate.
  • the moisture content of the hydraulic transfer base film of the present invention is preferably in the range of 1 to 6% by mass.
  • the moisture content is more preferably 1.5% by mass or more, and further preferably 2% by mass or more.
  • the hydraulic transfer base film may stretch when the hydraulic transfer base film is unwound from a roll.
  • the printing pattern may be blurred when printing is performed on a hydraulic transfer base film, or printing misalignment may occur when multicolor printing is performed.
  • the moisture content is more preferably 4% by mass or less.
  • the film formation method before slitting for obtaining the base film for hydraulic transfer of the present invention there is no particular limitation on the film formation method before slitting for obtaining the base film for hydraulic transfer of the present invention, and a film formed by a casting method, an extrusion method, a melting method, an inflation method or the like is used. Can do.
  • the film before slitting after film formation and the base film for hydraulic transfer may be non-stretched, and may be uniaxially or biaxially stretched for the purpose of improving mechanical properties according to the application, and is not particularly limited. .
  • the thickness of the base film for hydraulic transfer of the present invention may be appropriately selected in consideration of the balance between solubility in liquid and processability, but is usually within the range of 10 to 100 ⁇ m, preferably 20 to 80 ⁇ m. It may be within the range, more preferably within the range of 30 to 50 ⁇ m. When the thickness is less than 10 ⁇ m, the strength of the hydraulic transfer base film or the hydraulic transfer film is insufficient, and the process passability may be reduced. On the other hand, when the thickness exceeds 100 ⁇ m, the water-solubility of the hydraulic transfer base film and the hydraulic transfer film is lowered, and it may be difficult to perform the hydraulic transfer at an economical process speed.
  • the length and width of the hydraulic transfer base film of the present invention are not particularly limited, but from the viewpoint of productivity during printing, the length is preferably 1 m or more, and more preferably 100 m or more. More preferably 1000 m or more.
  • the width of the hydraulic transfer base film is preferably 30 cm or more, more preferably 40 cm or more, and further preferably 50 cm or more. When the width of the base film for hydraulic transfer is less than 30 cm, productivity during printing may be reduced.
  • the width of the hydraulic transfer base film is preferably 4 m or less, and more preferably 3 m or less. If the width of the hydraulic transfer base film exceeds 4 m, it may be difficult to produce a hydraulic transfer base film having a uniform thickness.
  • the surface of the hydraulic transfer base film is improved. It is preferable that mat processing is performed.
  • the mat treatment method include an on-line mat treatment method in which the surface of a mat on a roll or belt is transferred to a film during film formation, and a method in which an emboss treatment is performed after the formed film is once wound on a roll.
  • the arithmetic average height (Ra) of the mat-treated surface is preferably 0.5 ⁇ m or more, and more preferably 1 ⁇ m or more. As an upper limit of arithmetic average height (Ra), 10 micrometers is mentioned, for example.
  • the maximum height (Rz) is preferably 1 ⁇ m or more, and more preferably 3 ⁇ m or more. Examples of the upper limit of the maximum height (Rz) include 20 ⁇ m. When the maximum height (Rz) is less than 0.5 ⁇ m, it is difficult to obtain sufficient slip properties.
  • the base film for hydraulic transfer is preferably a dissolution time of 5 minutes or less in water at 20 ° C. from the viewpoint of process speed when performing hydraulic transfer using the obtained hydraulic transfer film, It is more preferably 3 minutes or less, further preferably 1 minute or less, more preferably 10 seconds or more, and more preferably 30 seconds or more.
  • the dissolution time is measured as follows. That is, first, a rectangular sample having a length of 40 mm and a width of 10 mm was cut out from a base film for hydraulic transfer, and a rectangular plate (hole) having a length of 35 mm and a width of 23 mm was opened on a 50 mm ⁇ 50 mm plastic plate.
  • the sample In between, the sample is sandwiched and fixed so that the length direction of the sample is parallel to the length direction of the window and the sample is positioned approximately at the center in the width direction of the window.
  • 300 ml of water is put into a 500 ml beaker, and the water temperature is adjusted to 20 ° C. while stirring with a magnetic stirrer equipped with a 3 cm long bar at a rotation speed of 280 rpm, and the sample fixed on the plastic plate is magnetically mixed. Soak in the beaker, taking care not to touch the stirrer bar. Then, the time until the sample piece dispersed in water disappears completely after being immersed in water is taken as the dissolution time.
  • the water-solubility of the base film for hydraulic transfer can be adjusted by a known method such as adjusting the type and amount of the material forming the base film and setting the thickness within a specific range.
  • the slit section of the water-soluble film as described above is controlled, for example, by controlling the slit section of a water-insoluble or low-water-soluble PVA film used as a raw material for optical films. It is difficult compared to
  • the base film for hydraulic transfer of the present invention can be obtained by slitting (cutting) a film before slitting.
  • a slit for example, the purpose of removing both ends of a long film and adjusting the width, and further, slitting a long film in the flow direction and dividing it into a plurality of films And the like.
  • blades such as a shear blade, a leather blade, and a round blade, the method of slitting using a laser, etc. are mentioned.
  • the method of slitting using a shear blade is possible because the surface shape of the slit cross section can be easily controlled and the production of the hydraulic transfer base film of the present invention becomes easy.
  • the shear cut method or the leather cut method in the form described later is more preferable.
  • the upper and lower blades used in the shear cut method and the leather blade used in the leather cut method those shown in FIGS. 5 to 8, 10 and 11 can be used.
  • the aspect as shown in FIG. 9 can be adopted as the shear cut method
  • the aspect as shown in FIG. 12 can be adopted as the leather cut method.
  • the blade edge angle of the upper blade is set to 30 to 90 °, and the lap amount of the upper blade and the lower blade is set to 0.1 to 0.8 mm. And a method in which the holding angle is 2 to 100 ° and the upper blade is not driven. By slitting by such a method, a hydraulic transfer base film in which the surface shape of the slit cross section is controlled can be easily obtained.
  • the cutting edge angle of the upper blade (D angle in FIG. 6) needs to be 30 to 90 °, and preferably 45 to 75 °.
  • the cutting edge angle of the upper blade is equal to or more than the lower limit, it is possible to suppress the generation of whiskers at the end in the thickness direction of the slit cross section. Moreover, generation
  • the clearance angle of the upper blade (the angle E in FIG. 6) is preferably 1.0 to 5.0 °, and more preferably 2.0 to 4.0 °.
  • the upper blade is preferably provided with a small blade. By using such an upper blade, the surface shape of the slit cross section can be controlled more easily.
  • Examples of the material of the upper blade include high-speed steel, die steel, stainless steel, ceramics, and cemented carbide.
  • the size of the upper blade is not particularly limited, but examples of the outer diameter (the length of B in FIG. 5) include 30 to 200 mm (preferably 50 to 150 mm), and the thickness (maximum thickness; Is a length of 0.1 to 3 mm (preferably 0.5 to 1.5 mm).
  • the type of the lower blade is not particularly limited, but those having a clearance angle (I angle in FIG. 8) of 1.0 to 5.0 ° can be preferably used.
  • the clearance angle is more preferably 2.0 to 4.0 °.
  • Examples of the material of the lower blade include high-speed steel, die steel, stainless steel, ceramics, and cemented carbide.
  • the size of the lower blade is not particularly limited, but examples of the outer diameter (the length of G in FIG. 7) include 30 to 200 mm (preferably 40 to 150 mm), and the thickness (maximum thickness; Is a length of 2 to 30 mm (preferably 5 to 15 mm).
  • the wrap amount of the upper blade and the lower blade (the length of J in FIG. 9) needs to be 0.1 to 0.8 mm, and 0.2 to 0.7 mm. Preferably there is.
  • the occurrence of defective slits can be suppressed when the amount of lap between the upper blade and the lower blade is equal to or more than the above lower limit. Moreover, it can suppress that a whisker generate
  • the holding angle (K angle in FIG. 9) needs to be 2 to 100 °, preferably 3 to 90 °, and preferably 3 to 80 °. More preferred.
  • the holding angle is within the above range, it is possible to suppress the generation of whiskers at the end in the thickness direction of the slit cross section.
  • the film is usually slit along the lower blade so that the outer peripheral speeds of the film and the lower blade are substantially the same.
  • the moving speed of the film and thus the outer peripheral speed of the lower blade is preferably 20 to 200 m / min, and more preferably 40 to 150 m / min.
  • the upper blade is not substantially driven.
  • the upper blade can freely rotate in the film moving direction along with the movement of the film, and it is possible to suppress the generation of whiskers on the slit cross section. It can be generated at the center in the thickness direction.
  • the outer peripheral speed of the upper blade (speed in the film moving direction) is preferably 1.05 times or less, more preferably 1.01 times or less, and 1.00 times the film moving speed. More preferably, it is as follows.
  • the maximum height (Rz) of the cutting edge of the leather blade is less than 1 ⁇ m when the film before slitting is slit using a leather blade.
  • the maximum height (Rz) of the blade edge of the leather blade is required to be less than 1 ⁇ m, preferably less than 0.9 ⁇ m, and more preferably less than 0.8 ⁇ m. .
  • the maximum height (Rz) is defined by JIS B 0601: 2001, and the maximum height (Rz) of the blade edge of the leather blade is measured by the roughness of the blade edge of the leather blade as shown in FIG. It is calculated
  • the blade edge angle of the leather blade (O angle in FIG. 11; blade edge angle ⁇ 1>) is preferably 10 to 50 °, and more preferably 15 to 45 °. Further, the angle formed by both small blade portions of the leather blade (the angle P in FIG. 11; the blade edge angle ⁇ 2>) is preferably 30 ° or less, and more preferably 25 ° or less.
  • Examples of the material of the leather blade include high-speed steel, die steel, stainless steel, ceramics, and cemented carbide.
  • Examples of the thickness of the leather blade include 0.05 to 1 mm (preferably 0.1 to 0.9 mm).
  • the angle formed by the leather blade and the film is preferably 10 to 60 °, and more preferably 15 to 55 °.
  • the angle formed by the leather blade and the film is within the above range, it is possible to suppress the generation of whiskers at the end in the thickness direction of the slit cross section.
  • the moving speed of the film is preferably 20 to 200 m / min, more preferably 40 to 150 m / min.
  • the hydraulic transfer film can be obtained by printing on the surface of the hydraulic transfer base film of the present invention.
  • a printing layer can be formed by employ
  • the printing may be performed directly on the base film for hydraulic transfer with printing ink, or after the printing layer is once formed on another film, the printing is performed by transferring it to the base film for hydraulic transfer. You can also.
  • a conventionally well-known thing can be used as printing ink used for printing.
  • the above-described hydraulic transfer film is floated on the surface of a liquid such as water with the printed surface facing upward, and hydraulic transfer is performed by pressing a transfer target such as various molded bodies from above. it can.
  • a more detailed hydraulic transfer method for example, the first step of activating the printing layer by floating the hydraulic transfer film on the liquid surface with the printed side up and spraying an ink activator, etc.
  • a hydraulic transfer method comprising each step can be mentioned.
  • transfer material for example, woody substrates such as wood, plywood, and particle board; various plastics; gypsum board; fiber cement boards such as pulp cement boards, slate boards, asbestos cement boards; calcium silicates Plates; Magnesium silicate plates; Glass fiber reinforced cement; Concrete; Plates of metals such as iron, stainless steel, copper, and aluminum; and composites thereof.
  • the transferred body may have a flat surface, a rough surface, or an uneven shape, but may be a transferred object having an uneven solid surface or curved surface. It is preferable that the advantage of hydraulic transfer can be utilized more effectively.
  • VK-X200 shape measurement laser microscope “VK-X200” (manufactured by Keyence Corporation) was used for the measurement of the roughness of the edge of a leather blade. Specifically, the cutting edge of the leather blade was observed at a magnification of 1500 times, and the roughness of all the cutting edges was measured as shown in FIG. 13 to obtain the maximum height (Rz).
  • VK-X200 shape measuring laser microscope “VK-X200” (manufactured by Keyence Corporation) was used to measure the surface roughness of the slit cross section. Specifically, at both end faces of the roll on which the hydraulic transfer base film is wound, the position is closest to the center of the roll from the slit cross section (0%) of the film located on the outer peripheral surface side of the roll.
  • any one position (one base film for hydraulic transfer) at 0 to 10%, 45 to 55% and 90 to 100%
  • the slit cross section) is observed at a magnification of 500 times, and the position (position in the thickness direction of the slit cross section) giving the maximum peak height (Rp) is the closest to the end in the thickness direction (0% or 100%)
  • the surface roughness was measured in the thickness direction at one location (close to) using the above-mentioned apparatus, and the obtained maximum peak height (Rp) and arithmetic average height (Ra) were adopted.
  • Example 1 PVA film as a film before slitting (Poval film VF-HD manufactured by Kuraray Co., Ltd., thickness: 30 ⁇ m, width: 700 mm, length: 1000 m, moisture content: 2.8%, dissolution time in water at 20 ° C .: 50 seconds ) And slit both ends so that the width becomes 500 mm (the slit position is as shown in FIG. 14), and the obtained base film for hydraulic transfer is a paper tube (paper with an inner diameter of 75 mm and an outer diameter of 90 mm). A cylindrical product) to make a roll. At this time, the slit conditions were as follows.
  • the obtained roll is mounted on a feeding device in a room that is humidified and air-conditioned at a room temperature of 20 ° C. and a relative humidity of 60%.
  • the base film for hydraulic transfer is continuously fed at a speed of 30 m / min, and a printing layer is provided on one side. Formed. At this time, the number of peeling sounds of the hydraulic transfer base film on the end face of the roll and the number of breaks of the hydraulic transfer base film were counted.
  • This evaluation was performed on five rolls manufactured by the same method, and respective average values (rounded to the first decimal place) were obtained. The results are shown in Table 1.
  • Examples 2 to 4 and Comparative Examples 1 to 4 Except that the slit conditions were changed as shown in Table 1, a roll obtained by winding up the hydraulic transfer base film was obtained in the same manner as in Example 1 and evaluated in the same manner as in Example 1. The results are shown in Table 1.
  • Example 5 Except that the slit conditions were changed as follows, a roll formed by winding up the hydraulic transfer base film was obtained in the same manner as in Example 1, and the evaluation was performed in the same manner as in Example 1. The results are shown in Table 1. ⁇ Slit conditions> [Method] Leather cutting method [Leather blade] Maximum height (Rz) of a leather blade / cutting edge having a shape as shown in FIGS.
  • the base film for hydraulic transfer according to the present invention can prevent breakage when it is fed out from a roll, so that production loss is reduced and productivity is improved.
  • 1 base film for hydraulic transfer
  • 1 ′ film to be slit
  • 2 roll
  • 3 slit cross section
  • 4 average line of roughness curve
  • 5 position giving maximum peak height (Rp)
  • 6 whiskers
  • 11 Upper blade of shear blade
  • 12 Cutting edge
  • 13 Small blade
  • 14 Line perpendicular to the film surface to be slit
  • 15 Lower blade of shear blade
  • 16 Cutting edge
  • 17 Film surface to be slit
  • 20 Leather blade
  • 21 Cutting edge
  • 30 Blade
  • A Inner diameter of upper blade of shear blade
  • B Outer diameter of upper blade of shear blade
  • C Thickness of upper blade of shear blade
  • D Edge angle of upper edge of shear blade
  • E Clearance angle of upper edge of shear blade
  • F Inner diameter of lower edge of shear blade
  • G Outer diameter of lower edge of shear blade
  • H Thickness of lower edge of shear blade
  • I clearance angle of the lower blade of the shear blade
  • J lap amount of the upper blade

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Decoration By Transfer Pictures (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Laminated Bodies (AREA)

Abstract

L'invention vise à procurer un film de base pour transfert hydraulique qui ne se rompt pas facilement lorsqu'il est distribué à partir d'un rouleau, et à procurer son procédé de fabrication. A cet effet, l'invention porte sur un film de base (1) pour transfert hydraulique dans lequel, quand la rugosité de surface d'une section transversale de fente (3) dans la direction de l'épaisseur est mesurée, la position (5) qui donne le pic de hauteur maximal est de 20 à 80 % à partir d'un côté dans la direction de l'épaisseur quand le pic de hauteur maximal (Rp) est de 5 µm ou plus, et la hauteur moyenne arithmétique (Ra) est de 2 µm ou moins quand le pic de hauteur maximal (Rp) est inférieur à 5 µm. L'invention porte également sur un procédé pour fabriquer un film de base pour transfert hydraulique, lequel procédé comprend une étape pour fendre le film à l'aide de lames de cisaillement, l'angle de bord de lame de la lame supérieure étant de 30 à 90°, la distance de chevauchement entre la lame supérieure et la lame inférieure étant de 0,1 à 0,8 mm, l'angle de jambage étant de 2 à 100°, et la lame supérieure n'étant pas entraînée; et sur un procédé pour fabriquer un film de base pour transfert hydraulique, lequel procédé comprend une étape pour la fente à l'aide d'une lame de rasoir, la hauteur maximale (Rz) du bord de la lame de rasoir étant inférieure à 1 µm.
PCT/JP2013/056148 2012-03-30 2013-03-06 Film de base pour transfert hydraulique WO2013146145A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2013527216A JP6106588B2 (ja) 2012-03-30 2013-03-06 液圧転写用ベースフィルムが巻き取られてなるロール
KR1020147026179A KR102038167B1 (ko) 2012-03-30 2013-03-06 액압 전사용 베이스 필름
CN201380014947.1A CN104185559B (zh) 2012-03-30 2013-03-06 液压转印用基膜

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012079495 2012-03-30
JP2012-079495 2012-03-30

Publications (1)

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WO2013146145A1 true WO2013146145A1 (fr) 2013-10-03

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JP (1) JP6106588B2 (fr)
KR (1) KR102038167B1 (fr)
CN (1) CN104185559B (fr)
TW (1) TWI619619B (fr)
WO (1) WO2013146145A1 (fr)

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JP2017185620A (ja) * 2016-03-30 2017-10-12 住友化学株式会社 延伸フィルムの製造方法及び延伸フィルムの製造装置

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CN107635791B (zh) * 2015-06-15 2020-04-03 株式会社可乐丽 液压转印用基膜
EP3437894B1 (fr) * 2016-03-30 2020-06-03 Fujifilm Corporation Cliché matrice et stratifié pour l'impression lithographique et procédé pour la fabrication de cliché matrice pour l'impression lithographique
WO2019097977A1 (fr) * 2017-11-17 2019-05-23 東レ株式会社 Film, feuille de transfert de moulage le comprenant, rouleau de film, et procédé de production de film

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WO1998040215A1 (fr) * 1997-03-12 1998-09-17 Katsuya Industrial Co., Ltd. Procede d'impression et presse a imprimer
JP2002144418A (ja) * 2000-11-15 2002-05-21 Kuraray Co Ltd 延伸加工用ビニルアルコール系重合体フィルムの切断方法および偏光フィルム
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JP2005060636A (ja) * 2003-08-20 2005-03-10 Kuraray Co Ltd 水圧転写用ベースフィルムおよび水圧転写用印刷シートの製造法

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JP5363083B2 (ja) * 2008-04-24 2013-12-11 日本合成化学工業株式会社 液圧転写印刷用ベースフィルムの製造方法

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WO1998040215A1 (fr) * 1997-03-12 1998-09-17 Katsuya Industrial Co., Ltd. Procede d'impression et presse a imprimer
JP2002144418A (ja) * 2000-11-15 2002-05-21 Kuraray Co Ltd 延伸加工用ビニルアルコール系重合体フィルムの切断方法および偏光フィルム
JP2003012827A (ja) * 2001-04-23 2003-01-15 Nippon Synthetic Chem Ind Co Ltd:The 光学用ポリビニルアルコール系フィルム
JP2005060636A (ja) * 2003-08-20 2005-03-10 Kuraray Co Ltd 水圧転写用ベースフィルムおよび水圧転写用印刷シートの製造法

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Publication number Priority date Publication date Assignee Title
JP2017185620A (ja) * 2016-03-30 2017-10-12 住友化学株式会社 延伸フィルムの製造方法及び延伸フィルムの製造装置
TWI704383B (zh) * 2016-03-30 2020-09-11 日商住友化學股份有限公司 延伸膜的製造方法及延伸膜的製造裝置

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KR20140141595A (ko) 2014-12-10
JPWO2013146145A1 (ja) 2015-12-10
TW201350356A (zh) 2013-12-16
TWI619619B (zh) 2018-04-01
CN104185559A (zh) 2014-12-03
JP6106588B2 (ja) 2017-04-05
CN104185559B (zh) 2018-11-09
KR102038167B1 (ko) 2019-10-29

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