Preparation method of multi-layer colorful tpu

A colorful and liquid crystal layer technology, which is applied in the field of special effect film material preparation, can solve problems such as staying and not producing a large impact, and achieve the effects of high tolerance rate, low cost, and improved production efficiency

Pending Publication Date: 2022-06-03
DONGGUAN XIONGLIN NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, UV glue is widely used in TPU film materials, although when we only have requirements on the mechanical properties of TPU materials (such as tensile strength, wear resistance, etc.), UV glue does not have a great impact, once We have high requirements on the optical properties of film materials such as light transmission and light reflection, so the performance of the bonding

Method used

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  • Preparation method of multi-layer colorful tpu
  • Preparation method of multi-layer colorful tpu
  • Preparation method of multi-layer colorful tpu

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] The preparation of embodiment 1 multi-layer colorful tpu:

[0047] S1, PET pretreatment;

[0048] S2, coating the pretreated PET surface with a colorful liquid crystal material, and drying to prepare a colorful liquid crystal layer;

[0049] S3. Apply UV glue on the surface of the colorful liquid crystal layer and let it stand;

[0050] S4. Paste TPU film on the surface of UV glue for light curing;

[0051] S5, peel off the PET layer, apply UV glue on the surface of the colorful liquid crystal layer, and let it stand;

[0052] S6. Paste PU film on the surface of UV glue for light curing.

[0053] The pretreatment in S1 includes: putting two or more stacked PET films into a high-pressure steam sterilizer for high-pressure steam sterilization.

[0054] The high-pressure steam sterilization is performed at a temperature of 121° C. and a time of 90 minutes.

[0055] For the high-pressure steam sterilizer, the medium adopts conventional water vapor in the art.

[0056]...

Embodiment 2

[0064] The preparation of embodiment 2 multi-layer colorful tpu:

[0065] S1, PET pretreatment;

[0066] S2, coating the pretreated PET surface with a colorful liquid crystal material, and drying to prepare a colorful liquid crystal layer;

[0067] S3. Apply UV glue on the surface of the colorful liquid crystal layer and let it stand;

[0068] S4. Paste TPU film on the surface of UV glue for light curing;

[0069] S5, peel off the PET layer, apply UV glue on the surface of the colorful liquid crystal layer, and let it stand;

[0070] S6. Paste PU film on the surface of UV glue for light curing.

[0071] The pretreatment in S1 includes: putting two or more stacked PET films into a high-pressure steam sterilizer for high-pressure steam sterilization.

[0072] The high-pressure steam sterilization is performed at a temperature of 121° C. and a time of 50 minutes.

[0073] For the high-pressure steam sterilizer, the medium adopts conventional water vapor in the art.

[0074]...

Embodiment 3

[0082] The preparation of embodiment 3 multi-layer colorful tpu:

[0083] S1, PET pretreatment;

[0084] S2, coating the pretreated PET surface with a colorful liquid crystal material, and drying to prepare a colorful liquid crystal layer;

[0085] S3. Apply UV glue on the surface of the colorful liquid crystal layer and let it stand;

[0086] S4. Paste TPU film on the surface of UV glue for light curing;

[0087] S5, peel off the PET layer, apply UV glue on the surface of the colorful liquid crystal layer, and let it stand;

[0088] S6. Paste PU film on the surface of UV glue for light curing.

[0089] The pretreatment in S1 includes: putting two or more stacked PET films into a high-pressure steam sterilizer for high-pressure steam sterilization.

[0090] The high-pressure steam sterilization is performed at a temperature of 121° C. and a time of 50 minutes.

[0091] For the high-pressure steam sterilizer, the medium adopts conventional water vapor in the art.

[0092]...

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Abstract

The invention discloses a preparation method of multi-layer colorful tpu, and relates to a preparation technology of a film material with a special effect, and the preparation method comprises the following steps: pre-treating PET (Polyethylene Terephthalate); coating the pretreated PET surface with a colorful liquid crystal material, and drying to prepare a colorful liquid crystal layer; coating UV glue on the surface of the colorful liquid crystal layer, and standing; a TPU film is pasted on the surface of the UV glue, and light curing is carried out; stripping the PET layer, coating UV glue on the surface of the colorful liquid crystal layer, and standing; and pasting a PU film on the surface of the UV glue, and carrying out illumination curing. The mechanical property of the colorful film material is improved through the multi-layer film structure, the application scene is increased, and the negative influence of the multi-layer structure on the optical property of the film material is overcome through the special cementing technology.

Description

technical field [0001] The invention relates to a preparation technology of special effect film materials, in particular to a preparation method of a multi-layer colorful TPU. Background technique [0002] The Chinese name of TPU (Thermoplastic polyurethanes) is thermoplastic polyurethane elastomer rubber. TPU is formed by the co-reaction and polymerization of diisocyanate molecules such as diphenylmethane diisocyanate or toluene diisocyanate and macromolecular polyols and low molecular polyols (chain extenders). formed polymer materials. TPU has excellent properties of high tension, high tensile force, toughness and aging resistance, and is a mature environmental protection material. At present, TPU has been widely used in medical and health, electronic appliances, industry and sports, etc. It has the characteristics of high strength, good toughness, wear resistance, cold resistance, oil resistance, water resistance, aging resistance and weather resistance that other plast...

Claims

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Application Information

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IPC IPC(8): B29D7/01B29C65/48B29L9/00
CPCB29D7/01B29C65/48B29L2009/00
Inventor 何建雄金挺顺何杨林
Owner DONGGUAN XIONGLIN NEW MATERIAL TECH
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