CN111186152B - Plastic film with different transformation effects visible to naked eyes after printing and preparation method thereof - Google Patents
Plastic film with different transformation effects visible to naked eyes after printing and preparation method thereof Download PDFInfo
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- CN111186152B CN111186152B CN202010184541.XA CN202010184541A CN111186152B CN 111186152 B CN111186152 B CN 111186152B CN 202010184541 A CN202010184541 A CN 202010184541A CN 111186152 B CN111186152 B CN 111186152B
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- 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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2375/04—Polyurethanes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
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- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
Abstract
The invention discloses a preparation method of a plastic film with different transformation effects visible to naked eyes after printing, and the preparation method comprises the following steps of S1: producing a pattern film for later use by adopting a PET film through a digital printing technology; s2, preparing the base film with the belt: the method comprises the following steps of (1) producing a TPU base film with a base film in a belt PET film by adopting a TPU raw material as a base material through a vacuum hot-press molding technology, and peeling off the PET film for later use; s3, corona treatment: placing the base film with the pattern in corona equipment for corona treatment; s4, preparing a finished product: the TPU raw material is adopted, the base film with the pattern is taken as a base material, the base film is subjected to vacuum hot-press molding technology, the TPU film with the pattern which can be changed along with angle change can be obtained through a grating pattern compression roller, the base film is prepared, the method of repeated calendering and molding is adopted, the corona treatment method is combined, the bonding strength of the product and the TPU hot melt adhesive film is improved, the reasonable material formula is adopted for manufacturing the film, the production process is optimized, the process control is facilitated, the efficiency and the convenience of factory production are greatly improved, and the popularization and the use are facilitated.
Description
Technical Field
The invention relates to the technical field of TPU (thermoplastic polyurethanes), in particular to a plastic film with different transformation effects visible to the naked eye after printing and a preparation method thereof.
Background
The TPU film is prepared by special processes such as calendering, tape casting, film blowing, coating and the like on the basis of TPU granules. The thickness is 0.01 to 2mm, and the product is prepared by extruding and mixing MDI containing NCO functional group and POLYOL containing OH functional group and 1.4BG, and the product is widely used for processing modes such as injection, extrusion, calendering and dissolving into solution type resin and the like because of good elasticity, good physical property and good mechanical strength, is a plastic material frequently used by plastic processing manufacturers, and the prepared product covers the range of industrial application and civil necessities;
the TPU film with the changeable patterns has been developed for more than ten years in China, but at present, the changeable films in China are all sheets, so that the consumption of materials is high when the variable TPU film is used, the operation is not facilitated, most coiled materials depend on import from abroad, the use cost is high, the production period is long, and most of the variable TPU film is low in bonding strength with the TPU hot melt adhesive film.
Disclosure of Invention
The invention provides a plastic film with different transformation effects visible to naked eyes after printing and a preparation method thereof, which can effectively solve the problems that the prior domestic variable films are all sheets, the consumption of materials is high during use, the operation is not facilitated, most coiled materials depend on import from abroad, the use cost is high, the production period is long, and most of the variable films are low in bonding strength with TPU hot melt adhesive films in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a method for preparing a plastic film with different transformation effects visible to naked eyes after printing,
s1, drawing: producing a pattern film for later use by adopting a PET film through a digital printing technology;
s2, preparing the base film with the belt: the method comprises the following steps of (1) producing a TPU base film with a base film in a belt PET film by adopting a TPU raw material as a base material through a vacuum hot-press molding technology, and peeling off the PET film for later use;
s3, corona treatment: placing the base film with the pattern in corona equipment for corona treatment;
s4, preparing a finished product: the TPU raw material is adopted, the base film with the pattern is taken as a base material, and the TPU film with the pattern which can be changed along with the angle change can be obtained through a grating pattern pressing roller by a vacuum hot-press molding technology.
According to the technical scheme, the TPU base film of the step S2 comprises 50-70% of TPU particles, 15-20% of nano silicon dioxide master batches and 5-10% of antioxidant.
According to the technical scheme, the preparation method comprises the following steps:
n1, weighing the raw materials according to the mass percentage for later use;
n2, putting the raw materials into a stirrer to obtain a mixture;
n3, putting the mixture into a dryer to obtain a dry mixture;
n4, conveying the dry mixture into a casting machine, and extruding to form a film blank;
n5, taking the PET film with the picture as a base material, sending the film blank into a calender, and peeling off the PET film to obtain the base film with the picture.
According to the technical scheme, the antioxidant is a hindered phenol antioxidant.
According to the technical scheme, in the step N1, the stirring time is 15 minutes to 30 minutes under the condition that the rotating speed of the stirrer is 35 revolutions per minute to 45 revolutions per minute;
in the step N2, the heating temperature of the dryer is 80-90 ℃, and the drying is carried out for 1-2 hours;
the thickness of the base film with diagram is 0.1 mm to 0.5 mm.
According to the technical scheme, the processing voltage of the corona treatment of the step S3 is controlled to be 5000-15000 volts, and the processing speed is 10-15 meters per minute.
According to the technical scheme, the TPU film of the step S4 comprises 50-70% of TPU particles, 15-20% of nano silicon dioxide master batches and 5-10% of antioxidant.
According to the technical scheme, the preparation method comprises the following steps:
p1, weighing the raw materials according to mass percentage for later use;
p2, putting the raw materials into a stirrer to obtain a mixture;
p3, putting the mixture into a dryer to obtain a dry mixture;
p4, conveying the dry mixture into a casting machine, and extruding to form a film blank;
p5, taking the base film as the base material, sending the film blank into a calender, the roller of the calender is composed of a rubber roller and a grating line roller, and the TPU film with the pattern which can change along with the angle change can be obtained.
According to the technical scheme, in the step P2, the stirrer is stirred for 15 to 30 minutes at the speed of 35 to 45 revolutions per minute;
in the step P3, the heating temperature of the dryer is 80-90 ℃, and the drying is carried out for 1-2 hours;
the TPU film thickness in step P5 is from 0.3 mm to 0.7 mm.
According to the technical scheme, the plastic film with different transformation effects can be seen by naked eyes after printing, and the plastic film is prepared by the preparation method of the plastic film with different transformation effects can be seen by naked eyes after printing.
Compared with the prior art, the invention has the beneficial effects that: the invention has scientific and reasonable structure and safe and convenient use, improves the bonding strength of the product and the TPU hot melt adhesive film by preparing the base film and repeatedly performing calendering molding and combining a corona treatment method, optimizes the production process by adopting a reasonable material formula to manufacture the film, is beneficial to flow control, greatly improves the efficiency and convenience of factory production and is beneficial to popularization and use.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
In the drawings:
FIG. 1 is a schematic view of a process for preparing the plastic film of the present invention;
FIG. 2 is a schematic diagram of the TPU based film manufacturing process of the present invention;
FIG. 3 is a schematic diagram of the flow of the TPU film preparation process of the present invention.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Example 1: as shown in FIGS. 1 to 3, the present invention provides a technical solution, a method for preparing a plastic film with different transformation effects visible to the naked eye after printing,
s1, drawing: producing a pattern film for later use by adopting a PET film through a digital printing technology;
s2, preparing the basal membrane with a belt: the method comprises the following steps of (1) producing a base film with a TPU belt by using a TPU raw material and a PET film with a belt as a base material through a vacuum hot-press molding technology, and peeling the PET film for later use;
s3, corona treatment: placing the base film with the pattern in corona equipment for corona treatment;
s4, preparing a finished product: the TPU raw material is adopted, the base film with the pattern is taken as a base material, and the TPU film with the pattern which can change along with the angle change can be obtained through a grating pattern pressing roller by a vacuum hot-press molding technology.
According to the technical scheme, the TPU base film of the step S2 comprises 50% of TPU particles, 20% of nano silicon dioxide master batches and 10% of antioxidant.
According to the technical scheme, the preparation method comprises the following steps:
n1, weighing the raw materials according to the mass percentage for later use;
n2, putting the raw materials into a stirrer to obtain a mixture;
n3, putting the mixture into a dryer to obtain a dry mixture;
n4, feeding the dry mixture into a casting machine, and extruding to form a film blank;
n5, taking the PET film with the picture as a base material, sending the film blank into a calender, and peeling off the PET film to obtain the base film with the picture.
According to the technical scheme, the antioxidant is a hindered phenol antioxidant.
According to the technical scheme, in the step N1, the stirring time is 15 minutes under the condition that the rotating speed of the stirrer is 45 revolutions per minute;
in the step N2, the heating temperature of the dryer is 80 ℃, and the drying is carried out for 2 hours;
the thickness of the base film with diagram is 0.3 mm.
According to the technical scheme, the processing voltage of the corona treatment of the step S3 is controlled to be 10000 volts, and the processing speed is 10 meters per minute.
According to the technical scheme, the TPU film of the step S4 comprises 70% of TPU particles, 15% of nano silicon dioxide master batch and 10% of antioxidant.
According to the technical scheme, the preparation method comprises the following steps:
p1, weighing the raw materials according to the mass percentage for later use;
p2, putting the raw materials into a stirrer to obtain a mixture;
p3, placing the mixture into a dryer to obtain a dry mixture;
p4, conveying the dry mixture into a casting machine, and extruding to form a film blank;
p5, taking the base film as the base material, sending the film blank into a calender, wherein the calender roller consists of a rubber roller and a grating line roller, thus obtaining the TPU film with patterns which can change along with the angle change.
According to the technical scheme, in the step P2, the stirrer is stirred for 15 minutes at the speed of 45 revolutions per minute;
in the step P3, the heating temperature of the dryer is 80 ℃, and the drying is carried out for 2 hours;
the TPU film thickness in step P5 was 0.3 mm.
According to the technical scheme, the plastic film with different transformation effects visible to the naked eye after printing is prepared by the preparation method of the plastic film with different transformation effects visible to the naked eye after printing.
Example 2: as shown in FIGS. 1 to 3, the present invention provides a technical solution, a method for preparing a plastic film with different transformation effects visible to the naked eye after printing,
s1, drawing: producing a pattern film for later use by adopting a PET film through a digital printing technology;
s2, preparing the base film with the belt: the method comprises the following steps of (1) producing a TPU base film with a base film in a belt PET film by adopting a TPU raw material as a base material through a vacuum hot-press molding technology, and peeling off the PET film for later use;
s3, corona treatment: placing the base film with the pattern in corona equipment for corona treatment;
s4, preparing a finished product: the TPU raw material is adopted, the base film with the pattern is taken as a base material, and the TPU film with the pattern which can be changed along with the angle change can be obtained through a grating pattern pressing roller by a vacuum hot-press molding technology.
According to the technical scheme, the TPU base film of the step S2 comprises 37% of TPU particles, 18% of nano silicon dioxide master batches and 8% of antioxidant.
According to the technical scheme, the preparation method comprises the following steps:
n1, weighing the raw materials according to the mass percentage for later use;
n2, putting the raw materials into a stirrer to obtain a mixture;
n3, putting the mixture into a dryer to obtain a dry mixture;
n4, conveying the dry mixture into a casting machine, and extruding to form a film blank;
n5, taking the PET film with the picture as a base material, sending the film blank into a calender, and peeling off the PET film to obtain the base film with the picture.
According to the technical scheme, the antioxidant is a hindered phenol antioxidant.
According to the technical scheme, in the step N1, the stirring time is 15 minutes under the condition that the rotating speed of the stirrer is 45 revolutions per minute;
in the step N2, the heating temperature of the dryer is 80 ℃, and the drying is carried out for 2 hours;
the thickness of the base film with diagram is 0.3 mm.
According to the technical scheme, the processing voltage of the corona treatment of the step S3 is controlled to be 12500 volts, and the processing speed is 15 meters per minute.
According to the technical scheme, the TPU film of the step S4 comprises 70% of TPU particles, 16% of nano silicon dioxide master batch and 7% of antioxidant.
According to the technical scheme, the preparation method comprises the following steps:
p1, weighing the raw materials according to mass percentage for later use;
p2, putting the raw materials into a stirrer to obtain a mixture;
p3, placing the mixture into a dryer to obtain a dry mixture;
p4, conveying the dry mixture into a casting machine, and extruding to form a film blank;
p5, taking the base film as the base material, sending the film blank into a calender, wherein the calender roller consists of a rubber roller and a grating line roller, thus obtaining the TPU film with patterns which can change along with the angle change.
According to the technical scheme, in the step P2, the stirrer is stirred for 15 minutes at the speed of 45 revolutions per minute;
in the step P3, the heating temperature of the dryer is 80 ℃, and the drying is carried out for 2 hours;
the TPU film thickness in step P5 was 0.3 mm.
According to the technical scheme, the plastic film with different transformation effects can be seen by naked eyes after printing, and the plastic film is prepared by the preparation method of the plastic film with different transformation effects can be seen by the naked eyes after printing.
Example 3: as shown in FIGS. 1 to 3, the present invention provides a technical solution, a method for preparing a plastic film with different transformation effects visible to the naked eye after printing,
s1, drawing: producing a pattern film for later use by adopting a PET film through a digital printing technology;
s2, preparing the base film with the belt: the method comprises the following steps of (1) producing a TPU base film with a base film in a belt PET film by adopting a TPU raw material as a base material through a vacuum hot-press molding technology, and peeling off the PET film for later use;
s3, corona treatment: placing the base film with the pattern in corona equipment for corona treatment;
s4, preparing a finished product: the TPU raw material is adopted, the base film with the pattern is taken as a base material, and the TPU film with the pattern which can be changed along with the angle change can be obtained through a grating pattern pressing roller by a vacuum hot-press molding technology.
According to the technical scheme, the TPU base film of the step S2 comprises 70% of TPU particles, 20% of nano silicon dioxide master batches and 10% of antioxidant.
According to the technical scheme, the preparation method comprises the following steps:
n1, weighing the raw materials according to the mass percentage for later use;
n2, putting the raw materials into a stirrer to obtain a mixture;
n3, putting the mixture into a dryer to obtain a dry mixture;
n4, conveying the dry mixture into a casting machine, and extruding to form a film blank;
n5, taking the PET film with the picture as a base material, sending the film blank into a calender, and peeling off the PET film to obtain the base film with the picture.
According to the technical scheme, the antioxidant is a hindered phenol antioxidant.
According to the technical scheme, in the step N1, the stirring time is 15 minutes under the condition that the rotating speed of the stirrer is 45 revolutions per minute;
in the step N2, the heating temperature of the dryer is 80 ℃, and the drying is carried out for 2 hours;
the thickness of the base film with diagram is 0.3 mm.
According to the above technical solution, the processing voltage of the corona treatment of step S3 is controlled at 15000 volts, and the processing speed is 15 meters per minute.
According to the technical scheme, the TPU film of the step S4 comprises 70% of TPU particles, 20% of nano silicon dioxide master batches and 10% of antioxidant.
According to the technical scheme, the preparation method comprises the following steps:
p1, weighing the raw materials according to mass percentage for later use;
p2, putting the raw materials into a stirrer to obtain a mixture;
p3, putting the mixture into a dryer to obtain a dry mixture;
p4, conveying the dry mixture into a casting machine, and extruding to form a film blank;
p5, taking the base film as the base material, sending the film blank into a calender, wherein the calender roller consists of a rubber roller and a grating line roller, thus obtaining the TPU film with patterns which can change along with the angle change.
According to the technical scheme, in the step P2, the stirrer is stirred for 15 minutes at the speed of 45 revolutions per minute;
in the step P3, the heating temperature of the dryer is 80 ℃, and the drying is carried out for 2 hours;
the TPU film thickness in step P5 was 0.3 mm.
According to the technical scheme, the plastic film with different transformation effects can be seen by naked eyes after printing, and the plastic film is prepared by the preparation method of the plastic film with different transformation effects can be seen by the naked eyes after printing.
The plastic films produced by examples 1-3 were prepared as follows:
| contrast item | Example 1 | Example 2 | Example 3 |
| Peel force (N) | 12 | 12 | 12 |
| Low temp. resistance (degree) | -41 | -39 | -37 |
Through the comparison, the plastic films prepared in the embodiments 1 to 3 are all in a composite standard and are suitable for popularization and use, the bonding strength between the product and the TPU hot melt adhesive film is improved under the composite condition in the test by preparing the base film and repeatedly performing calendering molding and combining a corona treatment method, and the reasonable material formula is adopted to prepare the film, so that the production process is optimized, the process control is facilitated, the efficiency and the convenience of factory production are greatly improved, and the popularization and the use are facilitated.
Finally, it should be noted that: 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 changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. A preparation method of a plastic film with different transformation effects visible to naked eyes after printing is characterized by comprising the following steps:
s1, drawing: producing a pattern film for later use by adopting a PET film and adopting a digital printing technology;
s2, preparing the basal membrane with a belt: the method comprises the following steps of (1) producing a TPU base film with a base film in a belt PET film by adopting a TPU raw material as a base material through a vacuum hot-press molding technology, and peeling off the PET film for later use;
s3, corona treatment: placing the base film with the pattern in corona equipment for corona treatment;
the processing voltage of the corona treatment of the step S3 is controlled to be 5000-15000 volts, and the processing speed is 10-15 meters per minute;
s4, preparing a finished product: adopting TPU raw materials, taking the base film with the image as a base material, and obtaining the TPU film with patterns which can change along with angle change through a grating pattern pressing roller by a vacuum hot-press molding technology;
the TPU base film of the step S2 comprises 50-70% of TPU particles, 15-20% of nano silicon dioxide master batches and 5-10% of antioxidant;
wherein, the preparation method of the base film with the strip diagram is as follows:
n1, weighing the raw materials according to the mass percentage for later use;
n2, putting the raw materials into a stirrer to obtain a mixture;
n3, putting the mixture into a dryer to obtain a dry mixture;
n4, conveying the dry mixture into a casting machine, and extruding to form a film blank;
n5, taking the PET film with the picture as a base material, feeding the film blank into a calender, and peeling the PET film to obtain the base film with the picture;
the antioxidant is a hindered phenol antioxidant;
the preparation method of the TPU film with the pattern capable of changing along with the angle change comprises the following steps:
p1, weighing the raw materials according to mass percentage for later use;
p2, putting the raw materials into a stirrer to obtain a mixture;
p3, putting the mixture into a dryer to obtain a dry mixture;
p4, conveying the dry mixture into a casting machine, and extruding to form a film blank;
p5, taking the base film as the base material, sending the film blank into a calender, wherein the calender roller consists of a rubber roller and a grating line roller, thus obtaining the TPU film with patterns which can change along with the angle change.
2. The method for preparing a plastic film with different transformation effects visible to the naked eye after printing as claimed in claim 1, wherein in the step N1, the rotation speed of the stirrer is 35 to 45 revolutions per minute, and the stirring time is 15 to 30 minutes;
in the step N2, the heating temperature of the dryer is 80-90 ℃, and the drying is carried out for 1-2 hours;
the thickness of the base film with diagram is 0.1 mm to 0.5 mm.
3. The method for preparing a plastic film with different transformation effects visible to the naked eye after printing according to claim 1, wherein the TPU film of the step S4 comprises 50% -70% of TPU particles, 15% -20% of nano silica master batch and 5% -10% of antioxidant.
4. The method for preparing a plastic film with different transformation effects visible to the naked eye after printing as claimed in claim 1, wherein the stirrer in step P2 is stirred at a speed of 35 to 45 revolutions per minute for 15 to 30 minutes;
in the step P3, the heating temperature of the dryer is 80-90 ℃, and the drying is carried out for 1-2 hours;
the TPU film thickness in step P5 is from 0.3 mm to 0.7 mm.
5. A plastic film with different transformation effects visible to the naked eye after printing is characterized in that the plastic film is prepared by the preparation method of the plastic film with different transformation effects visible to the naked eye after printing according to any one of claims 1 to 4.
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| CN202010184541.XA CN111186152B (en) | 2020-03-17 | 2020-03-17 | Plastic film with different transformation effects visible to naked eyes after printing and preparation method thereof |
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| CN111186152B true CN111186152B (en) | 2022-05-06 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005030481A1 (en) * | 2003-09-29 | 2005-04-07 | Dai Nippon Printing Co., Ltd. | Decorating sheet, decorated molded article and in-mold decorating injection molding |
| JP2007054998A (en) * | 2005-08-23 | 2007-03-08 | Dainippon Printing Co Ltd | Decorated molded article and manufacturing method thereof |
| CN101674896A (en) * | 2007-04-30 | 2010-03-17 | S·D·沃伦公司 | Materials having a textured surface and methods for producing same |
| WO2016126571A1 (en) * | 2015-02-04 | 2016-08-11 | 3M Innovative Properties Company | Decorative film and article integrated therewith |
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2020
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005030481A1 (en) * | 2003-09-29 | 2005-04-07 | Dai Nippon Printing Co., Ltd. | Decorating sheet, decorated molded article and in-mold decorating injection molding |
| JP2007054998A (en) * | 2005-08-23 | 2007-03-08 | Dainippon Printing Co Ltd | Decorated molded article and manufacturing method thereof |
| CN101674896A (en) * | 2007-04-30 | 2010-03-17 | S·D·沃伦公司 | Materials having a textured surface and methods for producing same |
| WO2016126571A1 (en) * | 2015-02-04 | 2016-08-11 | 3M Innovative Properties Company | Decorative film and article integrated therewith |
| CN107206726A (en) * | 2015-02-04 | 2017-09-26 | 3M创新有限公司 | Decorative film and the product being integrated with |
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