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Antibacterial anti-slip biaxially stretched polyester film and preparation method thereof

A technology for biaxially stretching polyester and film, which is applied in the field of polyester film and can solve problems such as lack of anti-skid performance

Active Publication Date: 2019-08-13
HANGZHOU HESHUN TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention patent with the patent application number CN105082693 discloses "An anti-mildew and antibacterial polyester film and its preparation method". The thickness of the biaxially stretched polyester film is equal to or less than 20 μm; Film, which has good antibacterial effect on various molds, but does not have anti-slip performance

Method used

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  • Antibacterial anti-slip biaxially stretched polyester film and preparation method thereof
  • Antibacterial anti-slip biaxially stretched polyester film and preparation method thereof
  • Antibacterial anti-slip biaxially stretched polyester film and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0092] like figure 1 As shown, a kind of antibacterial anti-slip biaxially stretched polyester film comprises a surface layer and a core layer, the surface layer A is a functional layer, and the core layer B is a colored layer and / or a transparent layer, and the mass fraction of the surface layer accounts for 15%- 25%, and the mass fraction of the core layer is 75%-85%.

[0093] Specifically, the core material is: 65% optical grade polyester particles, 30% recycled PET particles, 3% masterbatch, 2% antibacterial agent; the surface layer is composed of 75% optical grade polyester particles, and 1% antibacterial agent %, recycled PET particles 24%.

[0094] The regenerated PET particle of the present invention, specific preparation method comprises the following steps:

[0095] The first step of raw material preparation: leftovers collected in the process of casting, trimming and other processes in the polyester production process;

[0096] The second step of pulverization: t...

Embodiment 2

[0116] An antibacterial non-slip biaxially stretched polyester film, different from Example 1, the core material is: 65% optical grade polyester particles, 30% recycled PET particles, 3% color masterbatch, 2% antibacterial agent; the surface layer consists of 75% optical-grade polyester particles, 1.5% antibacterial agent, and 23.5% recycled PET particles. , where recycled PET particles,

[0117] Antibacterial anti-slip biaxially oriented polyester film is produced according to the following production process:

[0118] 1) Send the raw materials of the core layer and the functional layer to the corresponding silo through the suction system, and control the mass ratio of the extrusion melt of the main extruder and the auxiliary extruder to 75:25 through the metering pump. Melt at 270-285°C in the auxiliary extruder, vacuumize, and then filter through a filter with a precision of 15 μm to remove moisture, oligomers and impurities in the raw material melt and use it as the melt ...

Embodiment 3

[0124] An antibacterial non-slip biaxially stretched polyester film, different from Example 1, the core material is: 65% optical grade polyester particles, 30% recycled PET particles, 3% color masterbatch, 2% antibacterial agent; the surface layer consists of 75% optical-grade polyester particles, 2% antibacterial agent, and 23% recycled PET particles.

[0125] Antibacterial anti-slip biaxially oriented polyester film is produced according to the following production process:

[0126] 1) Send the raw materials of the core layer and the functional layer to the corresponding silo through the suction system, and control the mass ratio of the extrusion melt of the main extruder and the auxiliary extruder to 75:25 through the metering pump. Melt at 270-285°C in the auxiliary extruder, vacuumize, and then filter through a filter with a precision of 15 μm to remove moisture, oligomers and impurities in the raw material melt and use it as the melt for main extrusion and auxiliary extr...

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Abstract

The invention provides an antibacterial anti-slip biaxially stretched polyester film and a preparation method thereof. The film comprises a surface layer and a core layer, wherein the surface layer Ais a functional layer, the core layer B is a colored layer and / or a transparent layer, the mass fraction of the surface layer is 15%-25%, the mass fraction of the core layer is 75%-85%, and an antibacterial agent is added in the surface layer A and / or the core layer B. When the film is prepared, in a transverse stretching process, the shrinkage rate of the winding film is further reduced through an improved cross-drawing process, so that the product has a more excellent shrinkage rate while having a good antibacterial anti-slip effect. The film is prepared by adopting three-layer co-extrusionbiaxial stretching equipment, and the polyester film is obtained through the steps of melt extrusion through a twin-screw extruder, piece casting through cold blast, longitudinal stretching, transverse stretching, traction and winding, cutting, packaging, finishing and the like. The produced film has an excellent antibacterial effect, has an anti-slip friction coefficient of 0.75-0.85, and has very good anti-slip performance. In addition, the polyester film prepared by the method has the advantages of being simple in method and low in cost, and having a good market application prospect.

Description

technical field [0001] The invention belongs to the technical field of polyester films, and relates to an antibacterial and anti-slip biaxially stretched polyester film and a preparation method thereof. Background technique [0002] Biaxially oriented polyester film has a wide range of applications due to its high strength, high transparency, non-toxic, colorless, and odorless, especially in products such as automobiles, electronics, and building materials. Although the biaxially oriented polyester film has so many excellent properties, in some special fields such as food packaging and pharmaceutical packaging, it is required that the polyester film has excellent anti-slip properties while having antibacterial properties, so the preparation has antibacterial and anti-slip properties. High-performance polyester films are of great significance for expanding the application of polyester films. [0003] The invention patent with the patent application number CN105082693 disclos...

Claims

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Application Information

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IPC IPC(8): B32B27/36B32B27/06B32B27/08B32B27/18B32B27/20B32B33/00C08L67/00C08L67/02C08K3/22C08J5/18B29C48/08B29C48/21B29C55/14B29B9/06
CPCB29B9/06B29C48/0018B29C48/022B29C48/08B29C48/21B29C55/143B32B27/08B32B27/18B32B27/20B32B27/36B32B33/00B32B2250/40B32B2307/7145B32B2307/744C08J5/18C08J2367/00C08J2467/02C08K2003/222C08K2201/011C08L67/00C08L67/02C08K3/22
Inventor 范和强陈正坚吴锡清方王凯杨凯元
Owner HANGZHOU HESHUN TECH CO LTD
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