Continue reading "BOPP Printing Material"
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]]>– Roll on labels, book covers, magazines …
– Soft food packaging for instant noodles, confectionery, coffee …
– Sealing tape
– Bags for shirts, trousers, CDs, …
– Tobacco wrap, flower wrapping paper, food
What is membrane laminate?
Film laminating is a thin layer of plastic film (usually BOPP film) that attaches to the surface of the print by means of a glue that is glossy, waterproof and protects the print surface from being scratched.
Water-retention glue: BOPP film is coated with liquid adhesive and then pressed onto the printed surface. Advantages are low investment machine, easy to find materials, low price, high speed but harmful and pollution (when using solvent thinners); waste of glue, more preparation time, need dry time without drying.
Heat film laminating: BOPP film with adhesive. The membrane melts the glue and simultaneously presses the membrane onto the surface of the sheet.
Advantages: no harm, no pollution, no adhesive glue, preparation time shortened, dry product right.
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]]>– In. Thick average from: 12; 20 mic
– Width: 35 – 120 cm
– Length: 4000; 6000 m
Production process:
Print the inner tube
Nature:
– Prevent odors, prevent osmosis
– Must pair with other material
Price is 15% higher than OPP.
Uses:
Pesticides, veterinary medicines, cosmetics
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Aluminum aluminum foil bags are made of composite film (multi-layered film> = 2 layers), which are grafted onto many different materials according to their use.
Use AL aluminum foil, MPET film to prevent sunlight, anti-osmosis, and odor retain the quality of the product.
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]]>– In, Thick tb: 15-40 Mic, (45-65mic)
– Width: 35 – 120 cm
– Length: 4000; 6000 m
Production process of finished products:
– Very good gravure printing (less jumping)
– Direct printing (printing on the surface and in the negative)
Nature:
– Especially, single membranes still make bags (45-60 mic)
Uses:
– Single pocket seal or seal with OPP
– Applicants in the industry produce bags, socks, pens, writing, towels, …
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]]>– CPP is sprayed with a very thin layer of silver metallic silver
– Anti-penetration, odor prevention, sunlight
– Used to pair with other membranes
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]]>In addition, due to the high aesthetic that MPET is also used to make high-end boxes, decorative products of high quality and image requirements such as wine box, wine box, tea …
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]]>– Excellent breathability.
– Poor waterproof.
– There is no rigidity like PP, so no bottle production.
– Ability to absorb water, steam.
– High O2, N2, CO2 resistance.
– High mechanical strength: resistant to collisions, resistant to abrasion, abrasion, and torn or perforated packaging.
– The ability to heat paste is quite good.
– Able to print well, no need to treat the surface before printing.
Application:
– PA film sealed with PE, used for frozen food packaging and liquid foods can withstand pasteurization temperatures of up to 1000C in
10 minutes, or shrink wrap food products.
– Used as vacuum packaging or packaging to prevent O2 permeation or odor discharge.
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The properties of PET
One of the important characteristics of PET is its viscosity.
The viscosity of the substance is decilit / gram (dl / g) depending on the length of the polymer circuit. The longer the length of the polymer, the higher the solids, the higher the viscosity. The length of a polymer can be adjusted through polymerization.
Viscosity of some forms:
– 0.6 dl / g: fiber;
– 0.65 dl / g: thin film;
– 0.76-0.84 dl / g: bottle;
– 0.85 dl / g: rope form.
PET has the ability to absorb moisture. When wet, during the PET processing, hydrolysis takes place at the contact surface between water and PET, which reduces the molecular weight of PET (or viscosity) and its mechanical properties. . So before plastic is processed, the moisture must be removed from the plastic. This can be achieved by using a desiccant or drying agent prior to commissioning.
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OPP material used to:
– Copper printing
– roll: pocket – super bottom; super side 2 sides
Nature:
– OPP used as bag
– Used as a membrane with other materials
Uses:
OPP materials are applied much to produce garment bags, socks, pens, towels, …
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