CN112359648A - Transfer paper for positioning and transverse cutting, preparation method thereof and method for positioning and transverse cutting - Google Patents

Transfer paper for positioning and transverse cutting, preparation method thereof and method for positioning and transverse cutting Download PDF

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Publication number
CN112359648A
CN112359648A CN202011241519.0A CN202011241519A CN112359648A CN 112359648 A CN112359648 A CN 112359648A CN 202011241519 A CN202011241519 A CN 202011241519A CN 112359648 A CN112359648 A CN 112359648A
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Prior art keywords
layer
positioning
coating
paper
transverse
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CN202011241519.0A
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Chinese (zh)
Inventor
刘壮
杨青
金晶
韩雍
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Shanghai Shunho New Materials Science & Technology Co ltd
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Shanghai Shunho New Materials Science & Technology Co ltd
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    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/10—Packing paper
    • 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
    • B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • 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
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • 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
    • B44C1/24—Pressing or stamping ornamental designs on surfaces
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/66—Coatings characterised by a special visual effect, e.g. patterned, textured
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/80—Paper comprising more than one coating
    • D21H19/84—Paper comprising more than one coating on both sides of the substrate

Abstract

The invention discloses transfer paper for positioning and transverse cutting, a preparation method thereof and a method for positioning and transverse cutting, wherein the transfer paper for positioning and transverse cutting comprises the following components in sequence from top to bottom: coating one side; a release layer; a microstructure image layer; a color-forming layer; an adhesive layer; a base paper layer; and a back coating; the face coating with from being equipped with a local location rete between the type layer, it includes that from the top down sets gradually: a vacuum aluminum plating layer; a positioning image layer provided with a transverse positioning cursor, a transverse pagoda tangent, a longitudinal cutting cursor and a longitudinal pagoda tangent; and a PET base film layer. The invention has the advantages of controllable production cost and accurate positioning and identification.

Description

Transfer paper for positioning and transverse cutting, preparation method thereof and method for positioning and transverse cutting
Technical Field
The invention relates to transfer paper for positioning and transverse cutting, a preparation method thereof and a method for positioning and transverse cutting by using the transfer paper.
Background
In recent years, with the rapid development of national economy, the packaging printing industry continuously meets new requirements, and paper packaging products with high quality and high aesthetic degree are the main development direction of the packaging industry. In order to meet the social demands for paper packages, manufacturers in the packaging industry only improve production equipment continuously.
At present, more and more packaging products taking aluminized paper, medium paper and the like as base paper appear in the market. Meanwhile, the environment is advocated in the society at present, the transfer paper is a recyclable resource, and a packaged product using the transfer paper can meet the requirements of visual or anti-counterfeiting design and can also play a role in protecting the environment.
The transfer paper is produced through loading pattern information onto transferable base film via mold pressing, coating glue on the information surface of the base film to compound with paper, peeling the base film for reuse, and the peeled paper with the pattern information on the base film has no film and may be recovered or degraded naturally. In order to improve the production efficiency, wrapping paper is usually produced by using a roll. A crosscutter is a device that crosscuts a web into flat sheets, which are often used in offset printing and other lithographic printing.
The printed design often requires the paper manufacturer to provide the location paper product with the holographic pattern information for anti-counterfeiting and aesthetic purposes. The common positioning paper is often endowed with metal texture by using a vacuum aluminizing mode, and meanwhile, the positioning mark line of the flat paper during transverse cutting is better identified. However, when zinc sulfide medium transfer paper and nanostructure color transfer paper are produced, because the colors of the positioning mark line and the paper are similar, the positioning mark line is difficult to be identified by an identifier, and thus positioning paper products such as zinc sulfide medium positioning transfer paper and nanostructure color positioning transfer paper in the market are lost or the positioning accuracy is low.
Disclosure of Invention
The invention aims to solve the problems and provides transfer paper for positioning and transverse cutting, a preparation method thereof and a method for positioning and transverse cutting, which have the advantages of controllable production cost, accurate positioning and identification, exquisite appearance, environmental protection and the like.
The purpose of the invention is realized as follows:
a transfer paper for positioning crosscut of the present invention comprises, arranged in order from top to bottom:
coating one side;
a release layer;
a microstructure image layer;
a color-forming layer;
an adhesive layer;
a base paper layer; and
a back coating layer;
the top coating with be equipped with a local location rete from between the type layer, it includes that from the top down sets gradually:
a vacuum aluminum plating layer;
a positioning image layer provided with a transverse positioning cursor, a transverse pagoda tangent, a longitudinal cutting cursor and a longitudinal pagoda tangent; and
a PET base film layer.
The color forming layer is a zinc sulfide dielectric layer or a nano-structure color layer.
The thickness of the zinc sulfide dielectric layer is 40nm, and the purity is more than 95%;
the coating dry weight of the nanostructured color layer is 4g/m2The coating temperature was 110 ℃.
The transverse width of the local positioning film layer is 40 mm.
The thickness of the vacuum aluminum-plated layer
Figure BDA0002768515950000021
The release layer is formed by uniformly coating transfer release resin on the back surface of the PET base film layer by using a coating machine, and the coating dry weight is 0.8g/m2；
The adhesive layer is formed by using a paper film compounding machine on the microstructureThe color layer on the back of the image layer is coated with adhesive, and the moisture content of the adhesive is 6.0g/m2The compounding temperature is 120 ℃;
the surface coating is formed by uniformly coating the surface of the base paper layer with water-based polyurethane resin and drying the water-based polyurethane resin in an oven, and the coating dry weight is 0.6g/m2。
The microstructure image of the microstructure image layer is one or combination of a plurality of microstructure patterns such as a holographic light column, a holographic plain surface, holographic crushed ice, a holographic star cluster, holographic lithography and a lens.
The invention provides a preparation method of transfer paper for positioning and transverse cutting, which comprises the following steps:
the method comprises the following steps: uniformly coating transfer release resin on the back surface of the PET base film layer to form the release layer;
step two: manufacturing two mould pressing working plates with positioning images and micro-structure images according to design patterns of package printing, and respectively installing the two mould pressing working plates on two mould pressing rollers of a double-sided mould pressing machine;
step three: respectively coating different types of resin coatings on the front surface and the back surface of the PET base film layer, and using the double-sided molding press to imprint and copy a positioning image on the front surface of the PET base film layer to form a positioning image layer and imprint and copy a microstructure image on the back surface of the PET base film layer to form a microstructure image layer;
step four: vacuum aluminum plating is carried out on the positioning image layer on the front surface of the PET base film layer to form a vacuum aluminum plating layer;
step five: plating a zinc sulfide medium on the microstructure image layer on the back of the PET base film layer in vacuum to form a color layer for manufacturing zinc sulfide medium positioning transfer paper or uniformly coating a nano-structure color polymerization emulsion with a nano microsphere structure by using a coating machine to form the color layer for continuously manufacturing nano-structure color positioning transfer paper;
step six: coating an adhesive on the color forming layer on the back of the microstructure image layer by using a paper film compounding machine to form the adhesive layer, compounding the adhesive layer with the base paper layer, and drying the back coating emulsion coated on the back of the base paper layer by using an oven to form the back coating;
step seven: adjusting a slitting knife of a paper film stripping machine to a position 10mm away from the outer edge of the transverse pagoda slitting line, aligning a laser recognizer with the longitudinal slitting cursor to recognize, starting a positioning and deviation rectifying system of the paper film stripping machine, reserving a local positioning film layer with the width of 40mm at the edge of the surface of the base paper layer, and positioning and stripping the base film layer and the base paper layer except the base film layer with the width of 40mm separately;
step eight: and uniformly coating water-borne polyurethane resin on the surface of the base paper layer subjected to positioning stripping in the seventh step, and drying the base paper layer by using an oven to form the surface coating.
In the preparation method of the transfer paper for positioning and transverse cutting, the front surface and the back surface of the PET base film layer are respectively coated with the film-coated resin paint and the transfer resin paint, and the coating weight is 5.0g/m2、5.5g/m2。
In the preparation method of the transfer paper for positioning and transverse cutting, the two mould pressing working plates are respectively a first mould pressing working nickel plate and a second mould pressing working nickel plate, wherein,
the manufacturing of the first die stamping working nickel plate comprises the following steps: utilizing a photoetching machine to manufacture a longitudinal cutting cursor, a longitudinal pagoda cutting line, a transverse positioning cursor and a transverse pagoda cutting line information module in a specific pattern; the obtained photoetching image-text information module is positioned and copied on a PET (polyethylene terephthalate) substrate by using UV (ultraviolet) curing coating, and then UV curing treatment is carried out, wherein the UV wavelength is set to be between 150 nm and 300nm, and the curing time is 0.1 h; carrying out electroplating treatment twice on the cured PET base film layer in an electroforming tank to obtain a first die pressing working nickel plate copied with a positioning image;
the manufacturing of the second die pressing working nickel plate comprises the following steps: manufacturing a Fresnel lens with a specific pattern with the central lens radius of 10cm by using a diamond lathe; manufacturing a pattern information module by using a photoetching machine; positioning and copying the obtained Fresnel lens structure, the photoetching image-text information module, the existing holographic light column and other microstructure images on a PET (polyethylene terephthalate) substrate by using UV (ultraviolet) curing coating according to design requirements, and then carrying out UV curing treatment, wherein the UV wavelength is set to be between 150 nm and 300nm, and the curing time is 0.2 h; and (3) carrying out electroplating treatment twice on the cured PET substrate in an electroforming tank to obtain a second die pressing working nickel plate copied with the microstructure image.
The invention also provides a transfer paper for positioning transverse cutting, which is used for the positioning transverse cutting method and comprises the following steps: the method comprises the steps of positioning and transversely cutting the reel-shaped semi-finished transfer paper by a flat paper transverse cutting machine, wherein the positioning transverse cutting machine is provided with a positioning cursor identification and correction system and is kept open, adjusting the transverse dimension of two side slitting cutters, aligning a lateral positioning cursor identifier with a longitudinal slitting cursor for identification, aligning a knife edge at one side with a selected longitudinal pagoda slitting line number, aligning a transverse positioning cursor identifier with a transverse positioning cursor for identification, aligning a transverse cutting knife opening with a selected longitudinal pagoda slitting line, operating the machine, positioning and transversely cutting the reel-shaped semi-finished transfer paper, and forming the flat positioning transfer paper with the same specification and the same pattern position of each paper.
The invention not only has controllable production cost, but also has accurate positioning and identification, exquisite appearance, environmental protection and the like.
Drawings
FIG. 1 is a schematic view of the structure of a transfer sheet of the present invention;
FIG. 2 is a schematic view of the structure of the local positioning film layer of the present invention;
FIG. 3 is a scout image in a scout image layer of the present invention.
Detailed Description
The invention will be further explained with reference to the drawings.
Referring to fig. 1-2, the present invention is illustrated in a transfer paper for positioning and cross-cutting, which includes, arranged from top to bottom:
one side is coated with a layer 1;
a release layer 2;
a microstructure image layer 3 with at least one microstructure pattern selected from holographic light column, holographic plain surface, holographic broken ice, holographic star group, holographic photoetching and lens;
a color-forming layer 4;
an adhesive layer 5;
a base paper layer 6; and
a back coating layer 7;
wherein a local positioning film layer 8 is arranged between the surface coating layer 1 and the release layer 2;
the transfer paper used for positioning and transverse cutting is zinc sulfide medium positioning transfer paper or nano-structure color positioning transfer paper;
the transverse width of the local positioning film layer 8 is 40mm, and the local positioning film layer comprises the following components which are arranged in sequence from top to bottom:
a vacuum aluminum layer 81;
a positioning image layer 82 provided with positioning images of a transverse positioning cursor 82a, a transverse pagoda tangent 82b, a longitudinal slitting cursor 82c and a longitudinal pagoda tangent 82 d; and
a PET base film layer 83.
The color forming layer 4 is a zinc sulfide dielectric layer or a nano-structure color layer.
A manufacturing process of transfer paper for positioning and transverse cutting comprises the following steps:
the method comprises the following steps: uniformly coating transfer release resin on the back surface of the PET base film layer 83 to form a release layer 2;
step two: manufacturing two mould pressing working plates with positioning images and micro-structure images according to design patterns of package printing, and respectively installing the two mould pressing working plates on a first mould pressing roller and a second mould pressing roller of a double-sided mould pressing machine;
step three: coating different types of resin coatings on the front surface and the back surface of the PET base film layer 83 respectively, and using a double-sided molding press to imprint and copy a positioning image on the front surface of the PET base film layer 83 to form a positioning image layer 82 and imprint and copy a microstructure image on the back surface to form a microstructure image layer 3;
step four: vacuum aluminizing is carried out on the positioning image layer 82 on the front surface of the PET base film layer 83 to form a vacuum aluminized layer 81;
step five: forming a color forming layer 4 by vacuum plating a zinc sulfide medium on the microstructure image layer 3 on the back of the PET base film layer 83 for manufacturing zinc sulfide medium positioning transfer paper or uniformly coating a nano-structure color polymerization emulsion with a nano microsphere structure by using a coating machine to form the color forming layer 4 for continuously manufacturing nano-structure color positioning transfer paper;
step six: coating an adhesive on the color forming layer 4 on the back of the microstructure image layer 3 by using a paper film compounding machine to form an adhesive layer 5, compounding the adhesive layer with the base paper layer 6, coating a back coating emulsion on the back of the base paper layer 6, and drying the back coating emulsion by using an oven to form a back coating 7;
step seven: adjusting a slitting knife of a paper film stripping machine to a position 10mm away from the outer edge of the transverse pagoda slitting line, aligning a laser recognizer with the longitudinal slitting cursor to recognize, starting a positioning and deviation rectifying system of the paper film stripping machine, reserving a local positioning film layer with the width of 40mm at the edge of the surface of the base paper layer, and positioning and stripping the base film layer and the base paper layer except the base film layer with the width of 40mm separately;
step eight: uniformly coating water-borne polyurethane resin on the surface of the base paper subjected to positioning stripping in the seventh step, and drying the base paper by using an oven to form a surface coating 1;
referring to fig. 3, the invention is used, the obtained semi-finished transfer paper of the winding drum is positioned and transversely cut by a flat paper transverse cutting machine, the positioning transverse cutting machine is provided with a positioning cursor identification and deviation correction system and is kept open, the transverse dimension of the slitting knives on two sides is adjusted according to the actual requirement, a lateral positioning cursor identifier is aligned with a longitudinal slitting cursor to identify, a knife edge on one side is aligned with the number '3' of the slitting line of the longitudinal pagoda, the transverse positioning cursor identifier is aligned with a transverse positioning cursor to identify, a transverse cutting knife edge is aligned with the number '3' of the slitting line of the longitudinal pagoda, a machine is operated to position and transversely cut the semi-finished transfer paper of the winding drum, and the flat positioning transfer paper with the same specification and the.
Example 1:
utilizing a photoetching machine to manufacture a longitudinal cutting cursor, a longitudinal pagoda cutting line, a transverse positioning cursor and a transverse pagoda cutting line information module in a specific pattern; positioning and copying the obtained photoetching image-text information module on a PET (polyethylene terephthalate) substrate by using UV (ultraviolet) curing coating according to the position requirement of the printing design in the attached figure 3, and then carrying out UV curing treatment, wherein the UV wavelength is set to be between 150 and 300nm, and the curing time is 0.1 h; carrying out electroplating treatment twice on the cured PET base film layer 83 in an electroforming tank to obtain a first die pressing working nickel plate with a copied positioning image;
manufacturing a Fresnel lens with a specific pattern with the central lens radius of 10cm by using a diamond lathe; manufacturing a pattern information module of a specific pattern by using a photoetching machine; positioning and copying the obtained Fresnel lens structure, the photoetching image-text information module and the conventional holographic light column on a PET (polyethylene terephthalate) substrate by using UV (ultraviolet) curing coating according to the position requirement of a printing design, and then performing UV curing treatment, wherein the preferable UV wavelength is set to be between 150 nm and 300nm, and the preferable curing time is 0.2 h; and (3) carrying out electroplating treatment twice on the cured PET substrate in an electroforming tank to obtain a second die pressing working nickel plate copied with the microstructure image.
And sequentially installing the first mould pressing working nickel plate and the second mould pressing working nickel plate on a first mould pressing roller and a second mould pressing roller of a double-sided mould pressing machine.
The back of the PET base film layer 83 was uniformly coated with a transfer release resin using a coater to form a release layer 2 having a dry coating weight of 0.8g/m2。
Coating a film-coated resin paint and a transfer resin paint on the front surface and the back surface of the PET base film layer 83 respectively, wherein the coating weight is 5.0g/m2、5.5g/m2. And (3) embossing and duplicating a positioning image on the front surface of the PET base film layer 83 by using a double-sided embossing machine to form a positioning image layer 82, and embossing and duplicating a microstructure image on the back surface to form a microstructure image layer 3, wherein the temperature of an embossing roller is 150 ℃, and the running tension is 30N.
After the mould pressing is finished, vacuum aluminizing is carried out on the positioning image layer 82 on the front surface of the PET base film layer 83 through a vacuum aluminizing machine to form a vacuum aluminized layer 81, the vehicle speed is 450 m/min, and the thickness of the vacuum aluminized layer is equal to that of the vacuum aluminized layer
Figure BDA0002768515950000061
Left and right, a positioning image layer 82 having a positioning image is obtained. And (3) plating a zinc sulfide medium on the microstructure image layer 3 on the back of the PET base film layer 83 in vacuum to form a color forming layer 4, wherein the thickness of the zinc sulfide medium layer is 40nm, and the purity is more than 95%.
Coating a color forming layer 4 on the back of the microstructure image layer 3 with an adhesive to form an adhesive layer 5 by using a paper film laminating machine, wherein the moisture content of the adhesive is 6.0g/m2The compounding temperature is 120 ℃, the local positioning film layer 8 and the base paper layer 6 are compounded, the oven temperature of the back coating layer 7 formed by coating the back coating emulsion on the back surface of the base paper layer 6 and drying the back coating emulsion in the oven is 100 ℃.
Adjusting a cutting knife of the paper film stripping machine to a position 10mm away from the outer edge of a transverse pagoda cutting line 82b in the figure 3, aligning a laser recognizer with a longitudinal cutting cursor 82d in the figure 3 for recognition, starting a positioning and deviation rectifying system of the paper film stripping machine, reserving a local positioning film layer 8 with the width of 40mm at the edge of the surface of the base paper layer 6, and positioning, stripping and separating the base film outside the width of 40mm from the base paper layer 6.
Uniformly coating water-borne polyurethane resin on the surface of the paper after the paper is positioned and stripped, and drying the paper by an oven to form a surface coating layer 1, wherein the coating dry weight is 0.6g/m2。
The obtained semi-finished zinc sulfide medium paper of the winding drum is positioned and transversely cut by a flat paper transverse cutting machine, the positioning transverse cutting machine is provided with a positioning cursor identification and deviation correction system and is kept open, the transverse dimension of the cutting knives on two sides is adjusted according to actual requirements, a lateral positioning cursor identifier is aligned with a longitudinal cutting cursor 82d in the figure 3 for identification, a knife edge on one side is aligned with the number '3' of a longitudinal pagoda cutting line 82c in the figure 3, a transverse positioning cursor identifier is aligned with a transverse positioning cursor 82b in the figure 3 for identification, a transverse cutting knife opening is aligned with the number '3' of the longitudinal pagoda cutting line 82c, a machine is operated to position and transversely cut the transfer paper of the semi-finished winding drum to form the flat zinc sulfide medium positioning transfer paper with the same specification and the same pattern.
Example 2:
the difference from the embodiment 1 is that,
the nano-structured color polymerization emulsion having a nano-microsphere structure was uniformly coated on the microstructure image on the back surface of the PET base film layer 83 using a coater to form a color forming layer 4 at a coating temperature of 110 ℃ in a coating dry amount of 4g/m2。
The compounding temperature of the adhesive layer 5 formed by coating the adhesive on the color forming layer 4 on the back of the microstructure image layer 3 by using a paper film compounding machine is 110 ℃, the film is compounded with the base paper layer 6, the back coating emulsion coated on the back of the base paper layer 6 is dried by an oven to form a back coating, and the temperature of the back coating oven is 95 ℃.
Uniformly coating water-based polyurethane resin on the surface of the paper after positioning and stripping, and drying the paper by an oven to form a surface coating layer 1, wherein the coating dry weight is 0.5g/m2。
The obtained roll semi-finished product nano-structure color transfer paper is positioned and transversely cut by a flat paper transverse cutting machine, the positioning transverse cutting machine is provided with a positioning cursor identification and deviation correction system and is kept open, the transverse dimension of a cutting knife at two sides is adjusted according to actual requirements, a lateral positioning cursor identifier is aligned with a longitudinal cutting cursor in a graph 3 for identification, a knife edge at one side is aligned with a longitudinal pagoda cutting line number '3' in the graph 3, a transverse positioning cursor identifier is aligned with a transverse positioning cursor in the graph 3 for identification, a transverse cutting knife edge is aligned with the longitudinal pagoda cutting line number '3', a machine is operated to position and transversely cut the roll semi-finished product transfer paper to form the flat nano-structure color positioning transfer paper with the same specification and the same pattern position of each piece of paper.
The above embodiments are provided only for illustrating the present invention and not for limiting the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and therefore all equivalent technical solutions should also fall within the scope of the present invention, and should be defined by the claims.

Claims (10)

1. A transfer paper for positioning crosscut, characterized in that it comprises, arranged in succession from top to bottom:
coating one side;
a release layer;
a microstructure image layer;
a color-forming layer;
an adhesive layer;
a base paper layer; and
a back coating layer;
the top coating with be equipped with a local location rete from between the type layer, it includes that from the top down sets gradually:
a vacuum aluminum plating layer;
a positioning image layer provided with a transverse positioning cursor, a transverse pagoda tangent, a longitudinal cutting cursor and a longitudinal pagoda tangent; and
a PET base film layer.
2. A transfer paper for positioning crosscut as claimed in claim 1, wherein the color forming layer is a zinc sulfide dielectric layer or a nanostructured color layer.
3. A transfer paper for positioning crosscut as claimed in claim 2, wherein the thickness of the zinc sulfide dielectric layer is 40nm, and the purity is more than 95%;
the coating dry weight of the nanostructured color layer is 4g/m2The coating temperature was 110 ℃.
4. A transfer paper for positioning crosscut as claimed in claim 1, wherein the lateral width of the partial positioning film layer is 40mm, and/or the thickness of the vacuum aluminized layer
Figure FDA0002768515940000011
5. The transfer paper for positioning cross cutting as claimed in claim 1, wherein the release layer is formed by uniformly coating a transfer release resin on the back surface of the PET base film layer using a coater with a dry coating amount of 0.8g/m2；
The adhesive layer is formed by coating an adhesive on a color layer on the back of the microstructure image layer by using a paper film compounding machine, and the moisture content of the adhesive is 6.0g/m2The compounding temperature is 120 ℃;
the surface coating is formed by uniformly coating the surface of the base paper layer with water-based polyurethane resin and drying the water-based polyurethane resin in an oven, and the coating dry weight is 0.6g/m2。
6. A transfer paper for positioning crosscut as claimed in claim 1, wherein the microstructure image of the microstructure image layer is one or a combination of microstructure patterns including holographic light columns, holographic plain, holographic crushed ice, holographic stars, holographic lithography, lenses, etc.
7. A method of manufacturing a transfer paper for alignment cross-cutting as set forth in claim 1, comprising the steps of:
the method comprises the following steps: uniformly coating transfer release resin on the back surface of the PET base film layer to form the release layer;
step two: manufacturing two mould pressing working plates with positioning images and micro-structure images according to design patterns of package printing, and respectively installing the two mould pressing working plates on two mould pressing rollers of a double-sided mould pressing machine;
step three: respectively coating different types of resin coatings on the front surface and the back surface of the PET base film layer, and using the double-sided molding press to imprint and copy a positioning image on the front surface of the PET base film layer to form a positioning image layer and imprint and copy a microstructure image on the back surface of the PET base film layer to form a microstructure image layer;
step four: vacuum aluminum plating is carried out on the positioning image layer on the front surface of the PET base film layer to form a vacuum aluminum plating layer;
step five: plating a zinc sulfide medium on the microstructure image layer on the back of the PET base film layer in vacuum to form a color layer for manufacturing zinc sulfide medium positioning transfer paper or uniformly coating a nano-structure color polymerization emulsion with a nano microsphere structure by using a coating machine to form the color layer for continuously manufacturing nano-structure color positioning transfer paper;
step six: coating an adhesive on the color forming layer on the back of the microstructure image layer by using a paper film compounding machine to form the adhesive layer, compounding the adhesive layer with the base paper layer, and drying the back coating emulsion coated on the back of the base paper layer by using an oven to form the back coating;
step seven: adjusting a slitting knife of a paper film stripping machine to a position 10mm away from the outer edge of the transverse pagoda slitting line, aligning a laser recognizer with the longitudinal slitting cursor to recognize, starting a positioning and deviation rectifying system of the paper film stripping machine, reserving a local positioning film layer with the width of 40mm at the edge of the surface of the base paper layer, and positioning and stripping the base film layer and the base paper layer except the base film layer with the width of 40mm separately;
step eight: and uniformly coating water-borne polyurethane resin on the surface of the base paper layer subjected to positioning stripping in the seventh step, and drying the base paper layer by using an oven to form the surface coating.
8. Transfer paper for positioning crosscut as claimed in claim 7The method is characterized in that the front surface and the back surface of the PET base film layer are respectively coated with a film coating resin paint and a transfer resin paint, and the coating weight is 5.0g/m2、5.5g/m2。
9. The manufacturing method of transfer paper for crosscut alignment according to claim 7, wherein the two embossing plates are a first embossing working nickel plate and a second embossing working nickel plate, respectively, wherein,
the manufacturing of the first die pressing working nickel plate comprises the following steps: utilizing a photoetching machine to manufacture a longitudinal cutting cursor, a longitudinal pagoda cutting line, a transverse positioning cursor and a transverse pagoda cutting line information module in a specific pattern; the obtained photoetching image-text information module is positioned and copied on a PET (polyethylene terephthalate) substrate by using UV (ultraviolet) curing coating, and then UV curing treatment is carried out, wherein the UV wavelength is set to be between 150 nm and 300nm, and the curing time is 0.1 h; carrying out electroplating treatment twice on the cured PET base film layer in an electroforming tank to obtain a first die pressing working nickel plate copied with a positioning image;
the manufacturing of the second die pressing working nickel plate comprises the following steps: manufacturing a Fresnel lens with a specific pattern with the central lens radius of 10cm by using a diamond lathe; manufacturing a pattern information module by using a photoetching machine; positioning and copying the obtained Fresnel lens structure, the photoetching image-text information module, the existing holographic light column and other microstructure images on a PET (polyethylene terephthalate) substrate by using UV (ultraviolet) curing coating according to design requirements, and then carrying out UV curing treatment, wherein the UV wavelength is set to be between 150 nm and 300nm, and the curing time is 0.2 h; and (3) carrying out electroplating treatment twice on the cured PET substrate in an electroforming tank to obtain a second die pressing working nickel plate copied with the microstructure image.
10. The transfer paper for crosscutting alignment according to any one of claims 1 to 6, for use in a crosscutting alignment method, comprising: positioning and transversely cutting the reel-shaped semi-finished transfer paper by a flat paper transverse cutting machine, wherein the positioning transverse cutting machine is provided with a positioning cursor identification and correction system and is kept open, adjusting the transverse dimension of two side slitting cutters, aligning a lateral positioning cursor identifier with the longitudinal slitting cursor for identification, aligning a side cutter edge with the selected longitudinal pagoda slitting line, aligning a transverse positioning cursor identifier with the transverse positioning cursor for identification, aligning a transverse cutter edge with the selected longitudinal pagoda slitting line, operating a machine, positioning and transversely cutting the transfer paper of the reel-shaped semi-finished product, and forming the flat positioning transfer paper with the same specification and the same pattern position of each piece of paper.
CN202011241519.0A 2020-11-09 2020-11-09 Transfer paper for positioning and transverse cutting, preparation method thereof and method for positioning and transverse cutting Pending CN112359648A (en)

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