CN115302911A - Polypropylene film for rotary offset printing and photocuring ink - Google Patents

Polypropylene film for rotary offset printing and photocuring ink Download PDF

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Publication number
CN115302911A
CN115302911A CN202210819313.4A CN202210819313A CN115302911A CN 115302911 A CN115302911 A CN 115302911A CN 202210819313 A CN202210819313 A CN 202210819313A CN 115302911 A CN115302911 A CN 115302911A
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Prior art keywords
polypropylene
film
polypropylene film
layer
corona
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CN202210819313.4A
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Chinese (zh)
Inventor
张安民
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Deyang Meizhuangting Paper Co ltd
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Deyang Meizhuangting Paper Co ltd
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Priority to CN202210819313.4A priority Critical patent/CN115302911A/en
Publication of CN115302911A publication Critical patent/CN115302911A/en
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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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D7/00—Producing flat articles, e.g. films or sheets
    • B29D7/01—Films or sheets
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
    • 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
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/0008—Electrical discharge treatment, e.g. corona, plasma treatment; wave energy or particle radiation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M1/00—Inking and printing with a printer's forme
    • B41M1/26—Printing on other surfaces than ordinary paper
    • B41M1/30—Printing on other surfaces than ordinary paper on organic plastics, horn or similar materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M1/00—Inking and printing with a printer's forme
    • B41M1/26—Printing on other surfaces than ordinary paper
    • B41M1/30—Printing on other surfaces than ordinary paper on organic plastics, horn or similar materials
    • B41M1/305—Printing on other surfaces than ordinary paper on organic plastics, horn or similar materials using mechanical, physical or chemical means, e.g. corona discharge, etching or organic solvents, to improve ink retention
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/10—Homopolymers or copolymers of propene
    • C08L23/14—Copolymers of propene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00—Applications
    • C08L2203/16—Applications used for films

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Laminated Bodies (AREA)

Abstract

The invention discloses a polypropylene film for rotary offset printing and photocuring ink, which comprises an inner layer, a core layer and a corona layer which are sequentially arranged from top to bottom, wherein the inner layer, the core layer and the corona layer are subjected to co-extrusion blow molding or tape casting film making to form the polypropylene film; the corona layer comprises polypropylene, polypropylene maleic anhydride graft copolymer, erucamide and nano-scale silicon dioxide. The invention has the beneficial effects that: the film of the invention utilizes the matching of the polypropylene maleic anhydride graft copolymer and the polypropylene, improves the polarity of the film, improves the film, does not need coating treatment, can adopt ultraviolet curing ink, and applies rotary offset printing process to print. The ink has excellent expression effect and adhesive force, low cost and high printing efficiency.

Description

Polypropylene film for rotary offset printing and photocuring ink
Technical Field
The invention relates to the technical field of printing and packaging, in particular to a polypropylene film for rotary offset printing and photocuring ink.
Background
The traditional printing mode is as follows: rotary offset printing is primarily a printing sheet of paper such as our newspapers and magazines, advertising, cartons, and the like. The printing of the film mainly adopts gravure printing, flexography printing and the like. With the requirements of less quantification, individuation and environmental protection. The rotary offset printing method comprises: low plate making cost, high speed, no VOC emission, environmental protection, very low energy consumption, capability of printing in small batches and the like. The application of this process to thin films is beginning to develop. However, the ultraviolet light curing ink is adopted, and the polymerization printing stock of the rotary offset printing process is applied, the traditional process needs to carry out coating treatment on a film, and the expression effect and the adhesive force of the ink can meet the product standard. But the cost is high and the process requirement is high, so that the process is not stopped.
Disclosure of Invention
The present invention has been made to overcome the disadvantages of the prior art and to provide a polypropylene film for offset and photocurable inks using uv curable inks as printing inks without additional coating processes.
The purpose of the invention is realized by the following technical scheme:
a polypropylene film for rotary offset printing and light-cured printing ink comprises an inner layer, a core layer and a corona layer which are sequentially arranged from top to bottom, wherein the inner layer, the core layer and the corona layer are subjected to co-extrusion blow molding or curtain coating film making to form the polypropylene film;
the corona layer comprises polypropylene, a polypropylene maleic anhydride graft copolymer, erucamide and nano-scale silicon dioxide.
The polypropylene maleic anhydride graft copolymer is matched with polypropylene, so that the polarity of the film is improved, the film is more perfect, and the ultraviolet light fixed telephone ink is better attached to the film by virtue of the polarity;
the erucamide can improve the smoothness of the film, and the addition of the nano-scale silicon dioxide can improve the opening performance, so that the moving process is smoother.
Further, the corona layer also comprises a delustering master batch.
Further, the polypropylene in the corona layer is one of ternary copolymer polypropylene or binary copolymer polypropylene.
Further, the core layer is a multilayer, and the core layer comprises polypropylene and an elastomer.
Further, the inner layer comprises resin and an antistatic agent, and the resin is polypropylene resin or polypropylene modified extinction resin.
Further, the corona layer comprises, by mass, 83-95% of polypropylene, 3-15% of a polypropylene maleic anhydride graft copolymer, 0.5-2% of erucamide and 1-2% of nano-silica.
Further, the corona layer comprises, by mass, 83-90% of polypropylene, 3-10% of a polypropylene maleic anhydride graft copolymer, 1-2% of erucamide, 1-2% of nano-scale silicon dioxide and 5% of extinction master batch.
Further, the core layer comprises 50-70% of polypropylene and 30-50% of elastomer by mass percentage.
Further, the inner layer comprises 98-99% of polypropylene resin and 1-2% of antistatic agent by mass percent.
Further, the inner layer comprises 98-99% of polypropylene modified extinction resin and 1-2% of antistatic agent in percentage by mass.
The functional polypropylene film is prepared by adopting a coextrusion blow molding or curtain coating film preparation method with more than three layers, uniformly distributing functional layers at a die lip through multi-screw extrusion under the distribution action of a coextrusion die head, forming a film after cooling, and rolling after corona to form the functional polypropylene film which can adopt ultraviolet curing ink and applies a rotary offset printing process.
The invention has the following advantages: the film of the invention utilizes the matching of the polypropylene maleic anhydride graft copolymer and the polypropylene, improves the polarity of the film, improves the film, does not need coating treatment, can adopt ultraviolet curing ink, and applies rotary offset printing process to print. The ink has excellent performance effect and adhesive force, low cost and high printing efficiency.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the embodiments of the present invention will be described in detail and completely with reference to the accompanying drawings.
Thus, the following detailed description of embodiments of the invention is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
In addition, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict.
Example 1
A polypropylene film for rotary offset printing and photocuring printing ink comprises an inner layer, a core layer and a corona layer which are sequentially arranged from top to bottom, wherein the inner layer, the core layer and the corona layer are formed into a bright polypropylene film by co-extrusion blow molding; the bright polypropylene film is the polypropylene film without the extinction component added in the film.
The corona layer comprises 95% of terpolymer polypropylene, 3% of polypropylene maleic anhydride graft copolymer, 1% of erucamide and 1% of nano-scale silicon dioxide in percentage by mass.
The core layer comprises 50% of polypropylene and 50% of elastomer by mass percent. The elastomer is propylene and ethylene copolymer.
The inner layer comprises 98% of polypropylene resin and 2% of antistatic agent by mass percent.
Example 2
A polypropylene film for rotary offset printing and photocuring ink comprises an inner layer, a core layer and a corona layer which are sequentially arranged from top to bottom, wherein the inner layer, the core layer and the corona layer are cast into a film to form a single-sided delustering polypropylene film; the single-sided delustering polypropylene film is a polypropylene film only the inner layer of which contains a delustering component.
The corona layer comprises 90% of binary copolymer polypropylene, 8.5% of polypropylene maleic anhydride graft copolymer, 0.5% of erucamide and 1% of nano-scale silicon dioxide in percentage by mass.
The core layer comprises 60% of polypropylene and 40% of elastomer by mass percent. The elastomer is propylene and ethylene copolymer.
The inner layer comprises 98.5% of polypropylene modified extinction resin and 1.5% of antistatic agent in percentage by mass. The polypropylene modified extinction resin is silicon dioxide modified polypropylene.
Example 3
A polypropylene film for rotary offset printing and photocuring printing ink comprises an inner layer, a core layer and a corona layer which are sequentially arranged from top to bottom, wherein the core layer comprises 3 layers including a first core layer, a second core layer and a third core layer, and the inner layer, the first core layer, the second core layer, the third core layer and the corona layer are co-extruded and blown to form a double-extinction polypropylene film; the double-sided extinction type polypropylene film is a polypropylene film with extinction components in both the corona layer and the inner layer.
The corona layer comprises 90% of terpolymer polypropylene, 3% of polypropylene maleic anhydride graft copolymer, 1% of erucamide, 1% of nano-scale silicon dioxide and 5% of extinction master batch by mass percent.
The first core layer, the second core layer and the third core layer respectively comprise 70% of polypropylene and 30% of elastomer by mass percent. The elastomer is propylene and ethylene copolymer.
The inner layer comprises 99% of polypropylene modified extinction resin and 1% of antistatic agent by mass percent. The polypropylene modified extinction resin is silicon dioxide modified polypropylene. It is understood that the number of core layers to be added can be selected by one skilled in the art according to the desired film thickness.
Example 4
A polypropylene film for rotary offset printing and photocuring ink comprises an inner layer, a core layer and a corona layer which are sequentially arranged from top to bottom, wherein the inner layer, the core layer and the corona layer are formed into a double-extinction type polypropylene film through co-extrusion blow molding;
the corona layer comprises 83% of terpolymer polypropylene, 10% of polypropylene maleic anhydride graft copolymer, 0.5% of erucamide, 1.5% of nano-scale silicon dioxide and 5% of extinction master batch by mass percent.
The first core layer, the second core layer and the third core layer respectively comprise 60% of polypropylene and 40% of elastomer by mass percent. The elastomer is propylene and ethylene copolymer.
The inner layer comprises 98% of polypropylene modified extinction resin and 2% of antistatic agent by mass percent.
Example 5
A polypropylene film for rotary offset printing and photocuring ink comprises an inner layer, a core layer and a corona layer which are sequentially arranged from top to bottom, wherein the inner layer, the core layer and the corona layer are formed into a bright polypropylene film through co-extrusion blow molding;
the corona layer comprises 83% of terpolymer polypropylene, 15% of polypropylene maleic anhydride graft copolymer, 1% of erucamide and 1% of nano-scale silicon dioxide in percentage by mass.
The first core layer, the second core layer and the third core layer respectively comprise 70% of polypropylene and 30% of elastomer by mass percent. The elastomer is a propylene-ethylene copolymer.
The inner layer comprises 98% of polypropylene resin and 2% of antistatic agent by mass percent.
Example 6
A polypropylene film for rotary offset printing and photocuring ink comprises an inner layer, a core layer and a corona layer which are sequentially arranged from top to bottom, wherein the inner layer, the core layer and the corona layer are formed into a double-sided delustering polypropylene film through co-extrusion blow molding;
the corona layer comprises 85% of terpolymer polypropylene, 7% of polypropylene maleic anhydride graft copolymer, 2% of erucamide, 1% of nano-scale silicon dioxide and 5% of extinction master batch by mass percent.
The first core layer, the second core layer and the third core layer respectively comprise 70% of polypropylene and 30% of elastomer by mass percent. The elastomer is a propylene-ethylene copolymer.
The inner layer comprises 98% of polypropylene modified extinction resin and 2% of antistatic agent by mass percent.
Example 7
A polypropylene film for rotary offset printing and photocuring ink comprises an inner layer, a core layer and a corona layer which are sequentially arranged from top to bottom, wherein the inner layer, the core layer and the corona layer are formed into a single-sided delustering polypropylene film through co-extrusion blow molding;
the corona layer comprises 90% of terpolymer polypropylene, 7% of polypropylene maleic anhydride graft copolymer, 1% of erucamide and 2% of nano-scale silicon dioxide in percentage by mass.
The first core layer, the second core layer and the third core layer respectively comprise 70% of polypropylene and 30% of elastomer by mass percent. The elastomer is propylene and ethylene copolymer.
The inner layer comprises 98.5% of polypropylene modified extinction resin and 1.5% of antistatic agent in percentage by mass.
The performance profiles of the polypropylene films prepared in the examples were printed using uv curable inks using a web offset printing process as shown in table 1.
TABLE 1
Figure BDA0003742071760000041
Figure BDA0003742071760000051
From the above table, the polypropylene film of the present application is divided into three appearance films of single-sided extinction, double-sided extinction and bright, and the processing performance of each type of film is excellent, wherein the optimal ratio of the single-sided extinction film is example 7, the optimal ratio of the double-sided extinction film is example 6, the optimal ratio of the bright film is example 5, the ink transfer performance of each type of film is more than 98% when the film is printed by using ultraviolet curing ink by using a rotary offset printing process, the ink has good expression effect and adhesive force, and each type of performance index is excellent, and the printing requirements can be met without performing coating treatment.
The polypropylene film is divided into three appearance films of single-sided extinction, double-sided extinction and bright and shiny
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.

Claims (10)

1. A polypropylene film for use in rotary offset and photocurable inks, characterized by: the polypropylene film comprises an inner layer, a core layer and a corona layer which are sequentially arranged from top to bottom, wherein the inner layer, the core layer and the corona layer are subjected to co-extrusion blow molding or curtain coating film making to form a polypropylene film;
the corona layer comprises polypropylene, a polypropylene maleic anhydride graft copolymer, erucamide and nano-scale silicon dioxide.
2. A polypropylene film for offset rotary printing and light-curing inks according to claim 1, wherein: the corona layer also comprises a delustering master batch.
3. A polypropylene film for offset rotary printing and light-curing inks according to claim 1, wherein: the polypropylene in the corona layer is one of ternary copolymer polypropylene or binary copolymer polypropylene.
4. A polypropylene film for offset rotary printing and light-curing inks according to claim 1, wherein: the core layer is a multilayer, and the core layer comprises polypropylene and an elastomer.
5. A polypropylene film for offset rotary printing and light-curing inks according to claim 1, wherein: the inner layer comprises resin and an antistatic agent, wherein the resin is polypropylene resin or polypropylene modified extinction resin.
6. A polypropylene film for offset rotary printing and light-curing inks according to claim 1, wherein: the corona layer comprises 83-95% of polypropylene, 3-15% of polypropylene maleic anhydride graft copolymer, 0.5-2% of erucamide and 1-2% of nano-scale silicon dioxide by mass percent.
7. A polypropylene film for offset rotary printing and light-curing inks according to claim 2, wherein: the corona layer comprises, by mass, 83-90% of polypropylene, 3-10% of a polypropylene maleic anhydride graft copolymer, 1-2% of erucamide, 1-2% of nano-scale silicon dioxide and 5% of extinction master batch.
8. The polypropylene film for web offset and photocurable inks according to claim 4, wherein: the core layer comprises 50-70% of polypropylene and 30-50% of elastomer by mass percent.
9. The polypropylene film for web offset and photocurable inks according to claim 5, wherein: the inner layer comprises 98-99% of polypropylene resin and 1-2% of antistatic agent by mass percent.
10. The polypropylene film for web offset and light curable inks according to claim 5, wherein: the inner layer comprises 98-99% of polypropylene modified extinction resin and 1-2% of antistatic agent by mass percent.
CN202210819313.4A 2022-07-12 2022-07-12 Polypropylene film for rotary offset printing and photocuring ink Pending CN115302911A (en)

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101480860A (en) * 2008-11-28 2009-07-15 安徽国风塑业股份有限公司 Low-friction coefficient polypropylene film
CN101966891A (en) * 2010-10-25 2011-02-09 黄山永新股份有限公司 Casting polypropylene (CPP) membrane for paper packaging and preparation method thereof
CN103182821A (en) * 2013-03-10 2013-07-03 湖北慧狮塑业股份有限公司 Modified polyamide composite membrane and preparation method thereof
CN105365315A (en) * 2015-11-11 2016-03-02 宿迁市金田塑业有限公司 Double-face transfer matting film and production technology thereof
CN205705811U (en) * 2016-06-01 2016-11-23 福建省炎英包装科技有限公司 A kind of polypropylene film for shallow reticulated printing
CN106671531A (en) * 2016-09-07 2017-05-17 无锡和烁丰新材料有限公司 Biaxially-oriented polypropylene (BOPP) film and preparation method thereof
CN107627705A (en) * 2017-10-13 2018-01-26 安徽国泰印务有限公司 One kind curtain coating heat-sealing CPP packaging films
WO2021074931A1 (en) * 2019-10-18 2021-04-22 Max Speciality Films Ltd. Uv printable biaxially oriented polypropylene film and a method of manufacturing thereof

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101480860A (en) * 2008-11-28 2009-07-15 安徽国风塑业股份有限公司 Low-friction coefficient polypropylene film
CN101966891A (en) * 2010-10-25 2011-02-09 黄山永新股份有限公司 Casting polypropylene (CPP) membrane for paper packaging and preparation method thereof
CN103182821A (en) * 2013-03-10 2013-07-03 湖北慧狮塑业股份有限公司 Modified polyamide composite membrane and preparation method thereof
CN105365315A (en) * 2015-11-11 2016-03-02 宿迁市金田塑业有限公司 Double-face transfer matting film and production technology thereof
CN205705811U (en) * 2016-06-01 2016-11-23 福建省炎英包装科技有限公司 A kind of polypropylene film for shallow reticulated printing
CN106671531A (en) * 2016-09-07 2017-05-17 无锡和烁丰新材料有限公司 Biaxially-oriented polypropylene (BOPP) film and preparation method thereof
CN107627705A (en) * 2017-10-13 2018-01-26 安徽国泰印务有限公司 One kind curtain coating heat-sealing CPP packaging films
WO2021074931A1 (en) * 2019-10-18 2021-04-22 Max Speciality Films Ltd. Uv printable biaxially oriented polypropylene film and a method of manufacturing thereof

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