Film materials have been widely used in the label industry due to their light weight, good flexibility, and high transparency. This paper introduces the common methods of printing processing of thin film materials, xws li kev luam ntawv flexographic, micro-nano printing, inkjet printing, etc. It also discusses some precautions involved, such as the selection of printing equipment, the selection and processing of printing materials, the adjustment of printing process parameters, etc.
4 Common Methods Of Printing And Processing Film Materials
1. Letterpress printing
Letterpress printing is one of the printing methods widely used in the printing of film materials. It is suitable for the printing of various types and large printing quantities, and is often used for printing packaging, trademarks, advertisements, etc. Lub ntsiab cai tseem ceeb ntawm kev luam ntawv letterpress yog tsim ib feem nce ntawm daim duab saum npoo ntawm daim ntawv luam ntawv, thiab tom qab ntawd hloov cov xim ntawm saum npoo ntawm lub tshuab luam ntawv mus rau cov khoom luam ntawv los ntawm kev nias. Ntawm lawv, UV ntawv luam ntawv yog ib txoj kev luam ntawv siab heev nrog zoo thiab muaj txiaj ntsig siab. Vim tias xim qhuav sai heev, zaj duab xis tuaj yeem rewind tsis tas yuav lamination.
2. Flexographic luam ntawv
Flexographic printing technology yog ib txoj kev tseem ceeb uas haum rau kev ua haujlwm ntawm cov khoom zaj duab xis nyias. Nws siv ib qho substrate hloov tau thiab ib lub tais luam ntawv elastic thiab siv xim luam ntawv lossis kua nplaum conductive los luam cov qauv thiab circuits uas xav tau rau ntawm substrate. Txoj kev thev naus laus zis tseem ceeb ntawm kev luam ntawv flexographic suav nrog kev tsim layout, ink blending, Luam ntawv, qhuav, thiab sib xyaw. Ntawm lawv, layout-making is one of the key steps, and commonly used layout-making methods include photolithography, electron beam exposure, and inkjet printing.
3. Screen printing
Solvent ink screen printing is a traditional printing method, generally using sheet-fed printing. Sheet-fed printing has low cost, good effect, and strong adaptability, and is the main printing method for sheet-fed film self-adhesive materials. Tam sim no, the relatively new screen printing method is UV screen printing, which can be printed on a single sheet or on a roll.
4. Gravure printing
Gravure printing is a common printing method for film self-adhesive materials. It uses the concave part of the gravure layout to accept ink, and transfers the ink to the printing material through printing pressure to form the desired pattern or text. Gravure printing is widely used in film self-adhesive labels, stickers, decorative materials, and other fields due to its high printing precision, rich colors, and good effects. Gravure printing machines are suitable for printing long-run, high-quality labels, such as beer labels, battery labels, etc.
Precautions For Printing And Processing Of Film Materials
Printing and processing of thin film materials is a complicated process, and the following items need to be paid attention to:
① Selection and processing of materials: K. e, v, cost, x. At the same time, a, i, v, and drying, t, h. i, a, b.
② Equipment selection and adjustment: u, a, inkjet printing requires an inkjet printer, etc. c, factors such as the characteristics of the printing material, production needs and budget need to be considered. At the same time, when adjusting the parameters of printing equipment, such as printing speed, pressure, temperature, t, it also needs to be adjusted according to specific materials and printing requirements.
③ Control of printing process: Control of the printing process is the key to ensure printing quality and production efficiency. It is necessary to formulate the printing process in the preparation work before printing, and to control and adjust the printing parameters in actual operation. At the same time, regular inspection and maintenance of printing equipment and materials is required to ensure printing quality and production efficiency.
First of all, the surface of the material must be pretreated and up to standard. Pre-coat the coating of affinity ink on the surface of the material to improve its wetting ability to the ink and increase the firmness of the ink. This treatment method is the most ideal, common, and stable method for thin film materials. Secondly, the use of matching special inks, varnishes, and ribbons should be tested in advance. Finally, to control the thickness of the ink layer, the ink should be dried thoroughly. For the overprinting part of the ink, care must be taken to prevent the ink on the lower layer from drying out.
④ Environmental and safety issues: During the printing process of film materials, environmental and safety issues also need to be paid attention to. The wastewater, waste gas, and waste generated in the printing process need to be properly treated, and at the same time, safety issues such as the toxicity and corrosiveness of printing liquid and printing ink need to be paid attention to, so as to ensure the safety of the production environment and the health of printing workers.
Hauv ntej, this article introduces the printing method of film self-adhesive materials and the matters needing attention. For relevant practitioners who need to print and process film self-adhesive materials, it is very necessary to master this knowledge. In practical application, it is also necessary to select the appropriate printing method and technical parameters according to the specific situation, so as to obtain the best printing effect. At the same time, it is also necessary to constantly pay attention to the development of new technologies and materials to improve production efficiency and print quality.
Yog tias koj xav paub ntau ntxiv txog kev luam ntawv, thov hu rau peb.
