Cool pillow and manufacturing method thereof

Abstract

The invention discloses a cool pillow and manufacturing method. The content of the cool pillow comprises the following components: 15-60% of urea, 10-30% of phosphate, 5-15% of guar gum and 25-70% of drinking water, wherein the guar gum is cation-type or anion-type guar gum, the concentration of the urea is 33-50% and the phosphate is disodium hydrogen phosphate and sodium dihydrogen phosphate. The cool pillow is manufactured through the following steps in sequence: firstly dissolving alkaline refrigerants, i.e. the urea and the disodium hydrogen phosphate in drinking water, wherein the solution is alkaline; then adding the guar gum into the solution and stirring uniformly; when high molecular colloidal sol is formed, adding the acidic refrigerant sodium dihydrogen phosphate into the mixture, mixing uniformly to obtain the content; and finally packaging the content into a packaging bag, thereby obtaining the cool pillow. The normal use time of the cool pillow is longer than that of a common cool pillow. The phosphate in the formula is dissolved at the temperature of 27 DEG C so as to absorb heat, so that the cool pillow can be maintained in a low temperature state for a longer period of time before reaching 30-DEG C .

Description

technical field [0001] The patent of the present invention relates to a cooling pillow and a manufacturing method thereof, in particular to a cooling pillow combined with a refrigerant and a cold storage agent and a manufacturing method thereof. Background technique [0002] The theoretical basis of this invention patent is based on "cool head, warm feet, and eight-point fullness" (sourced from "Tai Gua of the Book of Changes"). The main advantages of this invention patent are: comfortable use, long duration, and low cost. [0003] At present, the phase transition temperature of cooling pillows on the market is too low, and the maintenance time is short, resulting in overcooling when in contact. For example, ordinary cooling pillows on the market now only use water as a refrigerant. Time cooldown required. Chinese patent CN102462288A discloses a cooling pillow, including a pillow frame, connectors and pads, the pillow frame is placed on the left and right sides of the cooli...

AI Technical Summary

Problems solved by technology

Its structural components are more costly and the effective use time is short

[0004] In the prior art, polymer materials are also used as cold storage agents (such as polyvinyl alcohol), but there is no refrigerant, and the temperature of the refrigerant dissolution range is 10-15 ℃ material is used as a refrigeration material, it cannot be guaranteed to keep the temperature below 30 ℃ for more than 8 hours, and the use effect is not ideal