Infrared reflecting fiber and fabricating method thereof

Patent metadata

Field	Value
Publication number	US-11788211-B2
Application number	US-202016941584-A
Country	US
Kind code	B2
Filing date	Jul 29, 2020
Priority date	Apr 28, 2020
Publication date	Oct 17, 2023
Grant date	Oct 17, 2023

Abstract

An infrared reflecting fiber includes 76.0 parts by weight to 88.5 parts by weight of a carrier, 1.8 parts by weight to 4.0 parts by weight of an infrared reflecting composition, 2.5 parts by weight to 7.5 parts by weight of a titanium dioxide containing composition, and 6.0 parts by weight to 16.0 parts by weight of a color adjusting composition. The carrier includes polyethylene terephthalate (PET). When a content of 5.0 wt % to 7.5 wt % of the infrared reflecting composition and a balance of the carrier are mixed together to form a first fiber, a maximum infrared reflectivity of the first fiber is between 61% and 70%.

First claim

What is claimed is:

1. An infrared reflecting fiber, comprising:
76.0 parts by weight to 88.5 parts by weight of a carrier, wherein the carrier comprises polyethylene terephthalate (PET);
1.8 parts by weight to 4.0 parts by weight of an infrared reflecting composition, wherein the infrared reflecting composition comprises 74 parts by weight to 78 parts by weight of a substrate powder, 18 parts by weight to 22 parts by weight of an infrared reflecting colorant, and 2 parts by weight to 6 parts by weight of an additive, and when a content of 5.0 wt % to 7.5 wt % of the infrared reflecting composition and a balance of the carrier are mixed together to form a first fiber, a maximum infrared reflectivity of the first fiber is between 61% and 70%;
2.5 parts by weight to 7.5 parts by weight of a titanium dioxide containing composition; and
6.0 parts by weight to 16.0 parts by weight of a color adjusting composition.

2. The infrared reflecting fiber of claim 1 , wherein the substrate powder comprises polybutylene terephthalate (PBT).

3. The infrared reflecting fiber of claim 1 , wherein the infrared reflecting colorant comprises a titanium-nickel-antimony metal composite material.

4. The infrared reflecting fiber of claim 3 , wherein when a content of 1.0 wt % to 1.5 wt % of the infrared reflecting colorant and a balance of the carrier are mixed together to form a second fiber, a maximum infrared reflectivity of the second fiber is between 64% and 70%.

5. The infrared reflecting fiber of claim 1 , wherein the infrared reflecting colorant comprises a chromium-iron metal composite material.

6. The infrared reflecting fiber of claim 5 , wherein when a content of 1.0 wt % to 1.5 wt % of the infrared reflecting colorant and a balance of the carrier are mixed together to form a third fiber, a maximum infrared reflectivity of the third fiber is between 61% and 63%.

7. The infrared reflecting fiber of claim 1 , wherein the additive comprises a paraffin-based dispersant and a heat stabilizer.

8. The infrared reflecting fiber of claim 1 , wherein a particle diameter of the infrared reflecting colorant is between 150 nm and 250 nm.

9. The infrared reflecting fiber of claim 1 , wherein a titanium dioxide in the titanium dioxide containing composition is rutile.

10. The infrared reflecting fiber of claim 1 , wherein the color adjusting composition comprises 74 parts by weight to 78 parts by weight of a substrate powder, 18 parts by weight to 22 parts by weight of a color adjusting colorant, and 2 parts by weight to 6 parts by weight of an additive.

11. The infrared reflecting fiber of claim 10 , wherein a particle diameter of the color adjusting colorant is between 150 nm and 250 nm.

Assignees

• Taiwan Textile Res Inst

Inventors

• Chang Sheng-Shan
• Chiang Jo-Cheng
• Liu Chao-Huei

Classifications

• D01F1/106 Primary

  Radiation shielding agents, e.g. absorbing, reflecting agents · CPC title

• C08L67/02

  Polyesters derived from dicarboxylic acids and dihydroxy compounds (C08L67/06 takes precedence) · CPC title

• C09C1/363

  Drying, calcination · CPC title

• C09C1/3623

  Grinding · CPC title

• C09C1/3669

  Treatment with low-molecular organic compounds · CPC title