Neutral odorless gum and preparation method thereof

Abstract

The invention discloses neutral odorless gum, which is prepared from the following raw materials in parts by weight: 52 to 58 parts of dodecane isoparaffin, 37 to 43 parts of dammar resin and 3 to 7 parts of acetyl tributyl citrate. The method comprises the following steps: S1, weighing dodecane isoparaffin and acetyl tributyl citrate in parts by weight, and putting the dodecane isoparaffin and the acetyl tributyl citrate into a batching cylinder; S2, moving the batching cylinder to a stirrer for stirring; S3, weighing the dammar resin, adding the dammar resin into the batching cylinder in three times, and continuously stirring until the dammar resin is completely dissolved to form uniform colloid; S4, shutting down the stirrer, and moving a batching cylinder away from the stirrer; S5, sealing the batching cylinder, and performing standing; S6, filtering through a nylon filter screen; S7, collecting the filtrate, and measuring the refractive index and the acid value of the filtrate; and S8, after the refractive index and the acid value are qualified, filling, labeling, boxing and warehousing. The adhesive does not contain xylene, the refractive index and the like of the adhesive are almost equal to those of neutral gum, and dyed slices do not fade after being sealed by neutral odorless gum and passing an acceleration test.

Description

Technical field [0001] The present invention relates to the field of gum, and more particularly to a neutral tasteless gum and a preparation method thereof. Background technique [0002] After the pathological tissue sections are stained, the sealing is required, and the storage period is relatively long and the color of the staining cannot be faded. When the sealing is used, a sealing glue is used. The sealing glue used before the 1990s is mainly a neutral gum. It has two producers. One is Shanghai Huashi Renaissance Equipment Co., Ltd., and the other is Shanghai. The specimen model is still in use. The main component of neutral gum is xylene and Dama resin (natural resin), which is that the color filter is equivalent to the glass, the color of the sealing plate is not easily fade, and the maximum disadvantage is to contain xylene, xylene to the esophagus, respiratory tract The mucosa has irritating effects, which may lead to eye-catching and pharyngeal congestion, dizziness, he...

AI Technical Summary

Problems solved by technology

Neutral environmental-friendly quick-drying glue and ultra-clean mounting glue have no xylene odor, but the refractive index of the two is lower than that of neutral gum, and the color of the stained section will fade slowly