GB2264458A - A printing method for pet film - Google Patents
A printing method for pet film Download PDFInfo
- Publication number
- GB2264458A GB2264458A GB9204412A GB9204412A GB2264458A GB 2264458 A GB2264458 A GB 2264458A GB 9204412 A GB9204412 A GB 9204412A GB 9204412 A GB9204412 A GB 9204412A GB 2264458 A GB2264458 A GB 2264458A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pet film
- mold paper
- particles
- printing ink
- printing method
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
- B44C1/00—Processes, not specifically provided for elsewhere, for producing decorative surface effects
- B44C1/16—Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like
- B44C1/165—Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like for decalcomanias; sheet material therefor
- B44C1/17—Dry transfer
- B44C1/1712—Decalcomanias applied under heat and pressure, e.g. provided with a heat activable adhesive
-
- 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
Landscapes
- Printing Methods (AREA)
Abstract
The method includes the steps of applying a tension force to a roll of PET film 10, applying a pressure to combine the PET film with a sheet of mold paper 20 having patterns of particles of printing ink 40 thereon, passing the PET film together with the mold paper through a heated roller 30 in order to transfer particles of the printing ink 40 on the mold paper 20 to the PET film 10, rapidly passing the PET film 10 together with the mold paper 20 through a freezing room 50 thereby firmly combining the particles of the printing ink 40 with the PET film 10, separating the mold paper 20 from the PET film 10 and rolling up the PET film. <IMAGE>
Description
TITLE: A PRINTING METHOD FOK PET FILM This invention relates to a printing method for PET film.
As shown in FIGS. 1A and 1B, there is shown a prior art printing method for PET film. As illustrated, the praticles of the printing ink is coated with a layer 102 of resin before attaching on the PET film. However, such method will increase the thickness of the PET film and the particles of the printing ink will be easily detached when subjected to heat and water.
FIG. 2 shows a prior art printing method for fahrics with rough surface, in which the particles of the printing ink are attached in the clearance on the rough surface.
Nevertheless, this method is only suitable for use with fabrics and is not applicable to the PET film.
Therefore, it is an object of the present invention to provide a printing method for PET film which may obviate and mitigate the above-mentioned drawbacks.
This invention relates to an improved printing method for PET film.
It is the primary object of the present invention to provide a printing method for PET film in which the particles of the printing ink will permeate through the
PET film.
It is another object of the present invention to provide a printing method for PET film which will not increase the thickness of the PET film.
It is still another obect of the present invention to provide a printing method for PIT il in which the particles of-the printing ink are firmly engaged with the
PET film.
It is still another object of the present invention to provide a printing method for PET film which is easily carried out.
It is a further object of the present invention to provide a printing method for PET film which is practical in use.
Other objects and merits and a fuller understanding of the present invention will be obtained by those having ordinary skill in the art when the following detailed description of the preferred embodiment is read in conjunction with the accompanying drawings.
FIGS. 1A and 1B are sectional side views of a goods printed by the prior art printing m:Lhod; FIG. 2 is a scions view of a fabric printed by the prior art printing method;
FIG. 3A is a block diaqram showing the procedures of the present invention;
FIG. 3B shows the working procediires of the present invention;
FIG. 4 shows how the temperature is related to the clearance between the crystals;
FIGS. 5A, 5B and 5C show the variation of the goods being printed by the present invention.
With reference to the drawings and in particular to
FIG. 3 thereof, the printing method for PET film according to the present invention mainly comprises the following steps:
l. Applying a tension force of about 2 kg to a roll of PET film 10;
2. Applying a pressure of b-8 kgicm to combine the
PET film 10 with a sheet of mold paper 20 having patterns thereon and travelling the PET film 10 at a speed of 10 20 meterimin.;
3. Passing the PET film 10 together with the mold paper 20 through a heated roller 30 at a temperature of 175 - 220 C so as to transfer the particles of the printing ink 40 on the mold paper 20 to the PET film 20; 4.Rapidly passing the PET film 10 together with the mold paper 20 through a freezing room 50 at a temperature of -10 C thereby firmly combining the particles of the printing ink 40 with the PET film 10;
5. Separating the mold paper 2() from the PET film 10 and rolling up the PET film 10.
The above temperature, pressure and the travelling speed may be adjusted to ensure the printing effect. For example, in case the temperature of the heated roller 30 is lowered, it is only necessary to increase the pressure and reduce the travelling speed.
In order to ensure the operation of this method, the
PET film 10 is applied with a tension force of 2 kg. The press-fit of the mold paper 20 and the PET film 10 is designed to facilitate the operation procedures. The travelling speed of the PE'J' film 10 irl(i the mcii d p;ip(r 20 is related to the printing time and effect. Hence, when the temperature of the heated roller 30 is predetermined, set the pressure and the travelling speed depending on the complexity of the pattern. Generally, the normal pressure and the travelling speed at 10-20 m/min are preferred.
According to the experiments, the particles 40 of the printing ink cannot permeate through the PET film at a temperature below 80 C and only when the temperature is above 175 C will the particles 40 of the printing ink permeate through the PET film 10. As shown in FIG. 4, the permeation of the particles 40 of the printing ink through the PET film 10 is closedly related to the temperature of the heated roller 3(). The clearance between crystals of the PET film 10 will vary from 175 C to 220 C. The PET film 10 will become soft and the crystals will be separated at a temperature above 220 C so that the temperature must be set between 175 C and 22 C and preferably between 180 C and 210 C.At that temperature, about 80-90 per cent of the particles 4() of the printing ink permeates through the PET film 10. ln order to make steady the temperature of the heated roller, an additional heated box 60 is provided on the heated roller Zü.
The freezing procedure is designed to recover the normal state of the crystals of the PET film so as to make the particles 40 of the printing ink steadily combine with the FET film 10. The preferred freezing temperature is below -10 C.
Looking now at FIG. 5, when the PET film 10 is press-fitted with the mold paper 20, the particles 40 of the printing ink will be closely engaged with the PET film 10. As the PET film 10 and the mold paper 20 pass thorugh the heated roller 30, the particles 40 of the printing ink will enter into the PET film 10 through the variation of the clearance between the crystals of the PT film 10.
After freezing and separating the mold paper 2 from the
PET film 10, the particles 40 of the printing ink already enter into the PET film 1ü and steadily locate in the clearance between crystals. In consequence, the thickness of the PET film 10 will not be increased by the particles 40 of the printing ink.
Although the present invention has been described with a certain degree of particularity, it is understood that the present disclosure is made by way of example only and that numerous changes in the detail of construction and the combination and arrangement of puts may he resorted to without departing from the spirit and scope of the invention as hereinafter claimed.
Claims (1)
- CLAIMS:1. A printing method for PET film comprising steps of: applying a tension force of 2 kg to a roll of PET film; applying a pressure of 6-8 kg/cm to combine the PET film with a sheet of mold paper having patterns thereon and travelling the PET film at a speed of 10-20 m/min; passing the PET film together with the mold paper through a heated roller at a temperature of 175-220 C for transferring particles of printing ink on the mold paper to the PET film; rapidly passing the PET film together with the mold paper through a freezing room at a temperature of -10 C thereby firmly combining the particles of the printing ink with the PET film; separating the mold paper from the PET film and.rolling up the PET film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9204412A GB2264458A (en) | 1992-02-29 | 1992-02-29 | A printing method for pet film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9204412A GB2264458A (en) | 1992-02-29 | 1992-02-29 | A printing method for pet film |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB9204412D0 GB9204412D0 (en) | 1992-04-15 |
| GB2264458A true GB2264458A (en) | 1993-09-01 |
Family
ID=10711302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9204412A Withdrawn GB2264458A (en) | 1992-02-29 | 1992-02-29 | A printing method for pet film |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2264458A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2294957A1 (en) * | 2006-12-28 | 2008-04-01 | Agustin Gifre Ramon | Support for flexible printing, has sheet of polyurethane thermo-elastomeric, polyethylene terephthalate, ethylene-vinyl acetate copolymer or polyvinyl butyral of any type and size |
| CN101804724A (en) * | 2010-03-12 | 2010-08-18 | 张伟公 | Fabrication method of special PVC for plastic flooring and PET plastic flower membrane |
| RU2820748C1 (en) * | 2023-10-03 | 2024-06-07 | Ильдус Ильдарович Муфазалов | Method of applying image on pet |
-
1992
- 1992-02-29 GB GB9204412A patent/GB2264458A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2294957A1 (en) * | 2006-12-28 | 2008-04-01 | Agustin Gifre Ramon | Support for flexible printing, has sheet of polyurethane thermo-elastomeric, polyethylene terephthalate, ethylene-vinyl acetate copolymer or polyvinyl butyral of any type and size |
| CN101804724A (en) * | 2010-03-12 | 2010-08-18 | 张伟公 | Fabrication method of special PVC for plastic flooring and PET plastic flower membrane |
| RU2820748C1 (en) * | 2023-10-03 | 2024-06-07 | Ильдус Ильдарович Муфазалов | Method of applying image on pet |
Also Published As
| Publication number | Publication date |
|---|---|
| GB9204412D0 (en) | 1992-04-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |