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A kind of polyamide anti-counterfeiting film and preparation method thereof

A polyamide and film technology, which is applied in the field of polyamide anti-counterfeiting film and its preparation, can solve the problems of increasing processing procedures, affecting product appearance, and not having anti-counterfeiting functions, achieving good bonding force, realizing authenticity identification and traceability, and easy The effect of processing and mass production

Inactive Publication Date: 2016-11-23
KINGFA SCI & TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, it usually does not have anti-counterfeiting function. When it is used in some fields that require anti-counterfeiting, it is necessary to set up special anti-counterfeiting marks on the film, such as printing anti-counterfeiting ink or pasting anti-counterfeiting labels, which affects the appearance of the product and increases the risk of counterfeiting. Processing
And because these anti-counterfeiting technologies are widely used anti-counterfeiting technologies, it is easy for counterfeiters to see, thereby imitating the corresponding anti-counterfeiting marks

Method used

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  • A kind of polyamide anti-counterfeiting film and preparation method thereof
  • A kind of polyamide anti-counterfeiting film and preparation method thereof
  • A kind of polyamide anti-counterfeiting film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment A1~A40

[0040] Embodiments A1~A40 and comparative examples B1~B4: preparation of anti-counterfeiting masterbatch

[0041] Weigh the carrier resin, fluorescent powder, coding substances and additives according to the proportions shown in Table 1~5, pour them into a high mixer and mix evenly, melt them in a twin-screw extruder at 200~300°C, extrude and granulate , to prepare anti-counterfeiting masterbatch.

[0042]

[0043]

[0044]

[0045]

[0046]

Embodiment 1~40 and comparative example 1~6

[0047] Examples 1-40 and Comparative Examples 1-6: Preparation of polyamide anti-counterfeiting film

[0048] A kind of preparation method of polyamide anti-counterfeiting film, its raw material formula is as shown in table 6~10, and its preparation method comprises the following steps:

[0049] Weigh each component by weight, dry the polyamide and anti-counterfeit masterbatch in an oven at 100°C for 4 hours, respectively extrude the polyamide and the anti-counterfeit masterbatch prepared in Tables 1 to 5 with two large and small extruders The pellets are extruded to the co-extrusion machine head, the polyamide is extruded from the large extruder, the anti-counterfeiting masterbatch is extruded from the small extruder, and after extruding the double-color foam tube, it is blown, drawn, and rolled to obtain anti-counterfeiting polyamide anti-counterfeiting film; wherein, the barrel temperature of the two large and small extruders is divided into three sections for control, foll...

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Abstract

The invention discloses a polyamide anti-counterfeiting film and a preparation method thereof. The polyamide anti-counterfeiting film includes, by weight, 100 parts of polyamide and 0.1-20 parts of anti-counterfeiting masterbatch. The anti-counterfeiting masterbatch includes, by weight, 29-99% of a carrier resin, 0.01-15% of a fluorescent powder, 0.01-65% of a coding material and 0-3.25% of an auxiliary; and the carrier resin is polyamide. The preparation method is as below: conducting extrusion molding on polyamide, processing aid and anti-counterfeiting masterbatch to a coextrusion head by using a large extruder and a small extruder respectively; evenly mixing polyamide and processing aid and extruding from the large extruder; extruding the anti-counterfeiting masterbatch from the small extruder; and extruding a double color bubble tube, and conducting blowing, traction and rolling. By adopting specific coextrusion film blowing process, the anti-counterfeiting strip and the polyamide film are combined into one body to gain good binding force; the production process is simple, low in anti-counterfeiting cost, and easy for processing and moulding and mass production; and according to the fluorescent features and coding information on the anti-counterfeiting strip, authenticity and traceability of the product can be realized.

Description

technical field [0001] The invention relates to the technical field of packaging anti-counterfeiting, in particular to a polyamide anti-counterfeiting film and a preparation method thereof. Background technique [0002] Polyamide film is a kind of high-strength plastic film with high tensile strength, elongation and tear strength. Polyamide film has outstanding cold resistance and heat resistance, and can be used at -60-200 °C. It also has excellent oil resistance, non-toxicity, fragrance retention and barrier effect on oxygen. Therefore, polyamide film is mainly used as packaging material, such as packaging sausage, cheese, pastry and other foods, and can also be used to package various construction machinery parts. [0003] However, it usually does not have anti-counterfeiting function. When it is used in some fields that require anti-counterfeiting, it is necessary to set up special anti-counterfeiting marks on the film, such as printing anti-counterfeiting ink or pasting...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L77/02C08K13/02C08K3/22C08K3/26C08K5/3437C08K3/16C08K5/13C08K5/5425C08K5/09C08J3/22B29C55/28
CPCB29C48/03B29C48/17B29C55/28C08J3/226C08J5/18C08J2377/02C08J2477/02C08L77/02C08L2203/16C08L2205/025C08L2205/03C08K13/02C08K5/3437C08K3/16C08K5/13C08K5/5425C08K5/09
Inventor 王超军欧阳春平刘奇祥蔡彤旻殷朝纲焦建杨晖曾祥斌
Owner KINGFA SCI & TECH CO LTD