Anti-ultraviolet PE heat sealable film
An anti-ultraviolet and heat-sealing film technology, which is applied in the field of PE heat-sealing film, can solve problems such as complex manufacturing process, achieve low-temperature sealing, reduce costs, and increase film strength.
Inactive Publication Date: 2018-05-29
温州银润包装有限公司
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AI Technical Summary
Problems solved by technology
The existing PE film is multi-layer, such as film-nylon-film; the production process is complicated
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0007] A UV-resistant PE heat-sealing film, which is made of the following raw materials in parts by weight: 3.5-5 parts of LLDPE7042; 4-6 parts of LLDPE2426; 2-3 parts of LLDPE800A; 1-2 parts of MDPE metallocene; 3 parts ~5 parts EVA, 3~5 parts titanium dioxide.
[0008] Specifically: mix 3.5-5 parts of LLDPE7042; 4-6 parts of LLDPE2426; 2-3 parts of LLDPE800A; 1-2 parts of MDPE metallocene; machine and blown into film.
[0009] Preferably, the processing temperature of extrusion blow molding is 215-230°C.
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The invention aims to provide an anti-ultraviolet PE heat sealable film prepared from the following raw materials in parts by weight: 3.5-5 parts of LLDPE7042, 4-6 parts of LLDPE2426, 2-3 parts of LLDPE800A, 1-2 parts of MDPE metallocene, 3-5 parts of EVA, and 3-5 parts of titanium dioxide. According to the heat sealable film provided by the invention, through formula improvement and blending of the raw materials, a molecular structure is changed and has single-layer screw, single-screw production is achieved, low-temperature mouth sealing is achieved, and the production efficiency is increased; the thin film strength is increased, and the cost is reduced while package breaking is prevented. The obtained PE thin film has an anti-ultraviolet function.
Description
technical field [0001] The invention belongs to the field of PE films, in particular to a UV-resistant PE heat-sealing film. Background technique [0002] PE film is polyethylene film, which is a polyethylene film produced by flat extrusion and blown process, also known as unstretched polyethylene film. Compared with polypropylene film, polyester film and polyvinyl chloride film, PE film not only has lower cost, but also has good flexibility, heat sealing performance and vertical and horizontal properties; and PE film can also be plated after corona treatment. Aluminum, printing, or compounding with other materials to obtain films with better performance, so PE films are widely used as packaging materials for food, daily necessities and electronic products, and are currently widely used as plastic packaging materials. In addition, PE film has excellent water vapor and gas barrier properties, and is especially suitable for use as a packaging film for hygiene products. The e...
Claims
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IPC IPC(8): C08L23/08C08L23/06C08K3/22C08J5/18
CPCC08J5/18C08J2323/08C08J2423/08C08K2003/2241
Inventor 吴登右
Owner 温州银润包装有限公司