Enzyme unhairing assistant and preparation method thereof

• Main Authors: LI ZHANMIN, ZHANG WENBIN, ZHANG YUYONG, JIN LONGTAO, YIN WEI, CHE XUAN, JIN LONGFEI, CAO YANMEI, YANG JUNZI, YANG SHICHAO
• Format: Patent
• Language: English
• Published: 17.06.2015
• Subjects: APPARATUS THEREFOR; CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING,IMPREGNATING, FINISHING; CHEMISTRY; COMPOSITIONS FOR TANNING; HIDES; LEATHER; METALLURGY; PELTS; SKINS

The invention relates to an enzyme unhairing assistant in tanning production, particularly an enzyme unhairing assistant and a preparation method thereof. The enzyme unhairing assistant is prepared from effective quantities of potassium hydroxide, sodium percarbonate, sodium hydroxide, calcium hydroxide, composite phosphate and deionized water. The preparation method comprises the following steps: evenly mixing the sodium percarbonate and sodium hydroxide to prepare a mixture, preparing the calcium hydroxide into a 45-65 wt% water solution, adding the calcium hydroxide water solution and composite phosphate into the suspension prepared in the step A, adding the deionized water, stirring the room temperature, adding the potassium hydroxide and the rest of deionized water, and uniformly mixing to obtain the slightly alkaline enzyme unhairing assistant. The enzyme unhairing assistant solves the technical problem that the enzyme unhairing assistant in the prior art can not be easily popularized on a large area, can easily cause environmental pollution and the like, has the advantages of favorable unhairing effect, simple preparation method and the like, and satisfies the requirement for clean production in the unhairing process.