Near-infrared radiation absorbing masterbatch, near-infrared radiation absorbing product made from the masterbatch, and method of making near-infrared radiation absorbing fiber from the masterbatch

Abstract

The near-infrared radiation absorbing masterbatch provided is prepared by melt-extruding a mixture comprising near-infrared radiation absorbing particles and a first polymer. The particles have a near-infrared absorption at a wavelength ranging from 0.7 μm to 2 μm and a far-infrared emissivity equal to or more than 0.85. The near-infrared light radiated by the particles has a wavelength ranging from 2 μm to 22 μm. Accordingly, the product made from the masterbatch, such as the near-infrared radiation absorbing fiber, plate, or film can not only absorb sunlight and store heat, but also radiate far-infrared light. Hence, the product has a thermal effect for keeping the human body warm and can serve as indoor and outdoor heat storing products at the same time.

Description

technical field [0001] The invention relates to a light-absorbing heat-storage masterbatch, in particular to a light-absorbing heat-storage composition capable of emitting far-infrared rays in addition to effectively storing heat by absorbing sunlight. The present invention also relates to a product of the light-absorbing heat-storage master batch and a method for preparing a fiber prepared from the light-absorbing heat-storage master batch. Background technique [0002] In order to achieve the warming effect without affecting the comfort due to the increase in the thickness of the clothes, the prior art adds far-infrared radiation materials to the fibers to increase the warming effect. [0003] British Patent No. 2303375A applies for using zirconia, zirconium silicate, and silicon dioxide as far-infrared radiating materials; Chinese Patent No. 1558007 applies for using bamboo carbon as far-infrared radiating materials. Although fibers containing zirconia, zirconium silicat...

AI Technical Summary

Problems solved by technology

Although fibers containing zirconia, zirconium silicate, silica and bamboo charcoal can emit far-infrared rays, their heat absorption effect is not good. They must be close to the human body to absorb human body heat, so as to emit far-infrared rays and be absorbed by the body. , its thermal insulation effect is limited

[0004] In view of this, the textile industry studies how to effectively absorb heat, so the use of solar absorbing materials has become a new solution. Japanese Patent Laid-Open No. 1-132816 applied for the use of zirconium carbide, antimony oxide, and tin oxide as solar absorbing materials. Materials can absorb near-infrared rays in sunlight, but although fibers containing zirconium carbide, antimony oxide, and tin oxide can absorb sunlight and store heat, the far-infrared radiation efficiency of zirconium carbide, antimony oxide, and tin oxide is not good, so Its warming effect is limited, and there is no light absorption and heat storage effect in indoor environments with no sunlight or weak sunlight

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