Infrared anti-false fiber and its production method and use

An anti-counterfeiting fiber and infrared technology, which is applied in the direction of melt spinning, special patterns, and information-carrying cards, can solve the problems of reducing anti-counterfeiting effect and anti-counterfeiting effect, and achieve good anti-counterfeiting effect, difficult to find, and good concealment.

Inactive Publication Date: 2007-05-23
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] With the development of society and science and technology and the intensification of competition in the market economy, people have higher and higher anti-counterfeiting requirements for branded products. Since the manufacturing method of the original ultraviolet anti-counterfeiting fiber has been mastered by many companies, the anti-counterfeiting effect has begun to decline. Moreover, the ultraviolet anti-counterfeiting fiber will develop color under strong sunlight, which reduces the anti-counterfeiting effect

Method used

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  • Infrared anti-false fiber and its production method and use
  • Infrared anti-false fiber and its production method and use

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Polypropylene infrared security fiber

[0029] (1) Preparation of infrared anti-counterfeiting masterbatch: Infrared-visible light up-conversion material (main component is Ba 2 ErCl 7 Rare earth compounds) and auxiliary additives (ultra-high molecular weight polysiloxane with a molecular weight of 2 million) were vacuum-dried respectively, and the dried infrared-visible light up-conversion material and auxiliary additives and polypropylene were kneaded in a kneader. During the kneading process Add coupling agent (titanate coupling agent (NDZ-1011)) and dispersant (white oil), knead evenly, melt blend and extrude by screw extruder, and pelletize after water cooling to obtain polypropylene infrared anti-counterfeiting Masterbatch. Among them, the mass percentage of each component is 40% of infrared-visible light up-conversion material, 56% of carrier material, 0.1% of titanate coupling agent (NDZ-1011), 1% of white oil dispersant, auxiliary additive...

Embodiment 2

[0033] Polyester infrared security fiber

[0034] (1) Preparation of infrared anti-counterfeiting masterbatch: Infrared-visible light up-conversion material (main component is BaLn 2 f 8 Rare earth compound), carrier material (PBT) and auxiliary additive (ultra-high molecular weight polysiloxane with a molecular weight of 2.2 million) were vacuum-dried separately, kneaded in a kneader, and a coupling agent (silane coupling agent was added during the kneading process (KH-550)) and dispersant (paraffin oil), kneaded evenly, melt blended and extruded by screw extruder, and pelletized after water cooling to obtain polyester infrared anti-counterfeiting masterbatch, wherein, the mass percentage of each component The content is 50% of infrared-visible light up-conversion material, 48.8% of carrier material (PBT), 0.8% of silane coupling agent (KH-550), 3% of dispersant paraffin oil, auxiliary additive ultra-high molecular weight polysiloxane (molecular weight 22...

Embodiment 3

[0038] Polyamide 6 infrared anti-counterfeiting fiber

[0039] (1) Preparation of polyamide 6 infrared anti-counterfeiting masterbatch: Infrared-visible light up-conversion material (main component is Ba 2 ErCl 7Rare earth compound), carrier material polyamide 6 and auxiliary additive (ultra-high molecular weight polysiloxane with a molecular weight of 1.8 million) were vacuum-dried respectively, kneaded in a kneader, and a coupling agent (titanate Coupling agent (KH-560)) and dispersant (white oil), kneaded evenly, melt blended and extruded by screw extruder, cooled by water, pelletized to obtain infrared anti-counterfeiting masterbatch. Among them, the mass percentage of each component is infrared-visible light up-conversion material 20%, carrier material polyamide 70%, titanate coupling agent (KH-560) 3%, white oil dispersant 0.1%, ultra-high molecular weight Polysiloxane (molecular weight 1,800,000) auxiliary additive 1%;

[0040] (2) Preparation of ...

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Abstract

The infrared camouflage fiber is composed of infrared and visible light fertile material 1-15%, fiber-forming high polymer 64-98%, coupling agent 0.1-3%, disperser 0.1-3%, and auxiliary additive 1-4%. It includes the following manufacturing procedures: 1) the preparation of infrared camouflage base, 2) preparation of spinning material. 3) Spinning and extension. It can be applied to trade marks, packing of name brands, certificates, bills, banking cards, stamps or invoices. It has good false proof and concealing effect, and long endurance.

Description

technical field [0001] The invention relates to an anti-counterfeiting fiber and its manufacturing method and application, in particular to an infrared anti-counterfeiting fiber and its manufacturing method and application. Background technique [0002] Infrared anti-counterfeiting fiber uses high-efficiency infrared-visible light up-conversion materials as special luminescent materials. The infrared-visible light up-conversion materials are rare earth compounds or rare earth doped compounds. The main components of the rare earth compounds are Ba2ErCl7 and BaLn2F8, while the rare earth doped materials are Oxides, fluorides, chlorides and sulfides are used as host materials, and rare earth doping is performed on the host materials to realize up-conversion luminescence. Fibers obtained by blending the luminescent material and the fiber-forming polymer. When the fiber is excited by infrared light (excitation spectrum 700-1500nm), the fiber emits colored light (emission spectru...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F1/10D01F6/06D01F6/62D01F6/60D01D5/098B44F1/12B42D25/36
Inventor 龚静华
Owner DONGHUA UNIV
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