A kind of high transparency solid glue stick and preparation method thereof

Abstract

The invention relates to a high-transparency solid glue stick. The high-transparency solid glue stick comprises the following raw materials by weight percentage: 5-50% of polyvinylpyrrolidone, 3-20% of excipient, 15-80% of solvent, 5-30% of clarifier, 0.5-10% of pH modifier, and the balance of water; the sum of the raw materials is 100%; the excipient is fatty acid salt. The preparation method comprises the following steps: (1) preparing raw materials; (2) adding the solvent in a reaction still; slowly adding the polyvinylpyrrolidone after stirring; conducting dissolution at a room temperature; increasing the temperature to 56-88 DEG C to be at a constant temperature; (3) adding the excipient; conducting stirring at the constant temperature until the excipient is completely fused, and transparent; (4) slowly adding the pH modifier aqueous solution; regulating the PH value to 10-12; conducting stirring at the constant temperature until the solution is transparent; (5) adding the clarifier; leaving the solution to stand at the constant temperature after stirring at the constant temperature; (6) filling the product; conducting cooling at the room temperature to obtain the product. The preparation method has the advantages that the production cost is low, the technology is simple, and the production period is short.

Description

technical field [0001] The invention relates to a stationery product, in particular to a high-transparency solid glue stick and a preparation method thereof. Background technique [0002] Stationery adhesives are mainly PVA liquid glue and solid glue sticks. Most of the colloids of solid glue sticks on the market are white or light yellow opaque solids, and transparent solid glue sticks are very popular among consumers because their colloids have certain crystal-like transparency. [0003] The existing patent number is 200910153831.1 titled "A transparent and environmentally friendly solid glue and its preparation method" [0004] The patent for invention discloses a preparation method of a transparent solid glue stick, but it has the following disadvantages: First, although this preparation method can obtain a solid glue stick with a certain degree of transparency, the transparency is not large, and it is impossible to obtain a solid glue stick with a certain transparency....

AI Technical Summary

Problems solved by technology

[0004] The patent for invention discloses a preparation method of a transparent solid glue stick, but it has the following disadvantages: First, although this preparation method can obtain a solid glue stick with a certain degree of transparency, the transparency is not large, and it is impossible to obtain a solid glue stick with a certain transparency. High transparency solid glue stick

Second, although the free formaldehyde content of the transparent solid glue sticks prepared by this method is low enough to meet the standard requirements, the use of formaldehyde cannot be avoided in the production process, which poses a greater safety hazard to operators and the workshop environment

The 3rd, the production process of this solid glue stick is complicated, and the production cycle is longer

[0005] Another patent number is 201110188372.8, and the invention patent titled "A transparent alkali-soluble acrylic resin solid glue and its preparation method" discloses a kind of invention that uses alkali-soluble acrylic resin as an adhesive and dibenzylidene sorbitol as an excipient. transparent solid glue, but because dibenzylidene sorbitol raw material is difficult to obtain on the market, and the price is higher; therefore the production cost is high, it is difficult to carry out large-scale production