A Study on Characteristics of Animal Glue depending on Pretreatment and Evaluation Condition

Abstract

Animal glue is a natural adhesive made from processed skins or bones of animals. It is widely used in wooden crafts, papercrafts, dancheong painting, and pictures. Accurate evaluation of the quality of animal glues during production and use is difficult because there is no formal method for testing the glue's properties during pretreatment and measurement conditions. Thus, in this study, a series of tests were carried out by changing the conditions of swelling, temperature, and concentration of animal glue and gelatin sold on the market. Twelve types of animal glues were evaluated, having a viscosity range of 12.67 cP to 29.43 cP. The results showed that the physical characteristics of the glues were stable when allowed to swell for six h in distilled water(23℃). When 10%(by weight in distilled water) of the animal glue was measured in the reflective mode of a spectrophotometer, the optical characteristics of the glues were stable. Powdered animal glues have a medium brightness and middle-high chroma. Relative to powdered glues, stick animal glues have a low brightness and a medium chroma. Based on the results of this study, it is expected that the data can be assembled into a form so that animal glue workers can use it as a reference for the preparation of evaluation standards for testing the characteristics of animal glues.

Properties Change of Korean Traditional Animal Glue Depending on The Parts of Cattle Hide and Extraction Conditions

“…탕과 재탕 아교를 대상으로 색도, 점도, pH를 측정하였다.측정방법은 선행연구(Oh et al, 2019)와 KS규격(KS M ISO 9665:2010, 접착제-아교-시료 채취 및 시험방법)을 참 고하였다(Table 2). 색도는 농도 10%(w/v) 아교수를 분광측색계(Colormate,Scinco, KOR)로 황색도(ASTM E313-73)와 총투과율을 측 정하였다.…”