PERBAIKAN DAYA SERAP IMPREGNASI UNTUK KULIT SAPI CRUST DYED ARTIKEL PULL UP UPPER SHOES DENGAN MENGGUNAKAN AMONIAK DI UD. BINA MITRA MAGETAN, JAWA TIMUR

Muhammad Rifqi Ramadhani, - (2023) PERBAIKAN DAYA SERAP IMPREGNASI UNTUK KULIT SAPI CRUST DYED ARTIKEL PULL UP UPPER SHOES DENGAN MENGGUNAKAN AMONIAK DI UD. BINA MITRA MAGETAN, JAWA TIMUR. Tugas Akhir thesis, Politeknik ATK.

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Abstract

Final project at UD. Bina Mitra Magetan, East Java aims to improve the absorption capacity of impregnated cowhide leather from crust dyed articles of pull up upper shoes which still have loose defects after the impregnation process. To overcome the problem of loose skin, it is necessary to do a method, namely by repeating the impregnation process on the skin. The raw material used is crust dyed cowhide with quality D and R which has been cut on the part where there is a loose defect and used as a sample for trial with an area of each sample 1 and sample 2, namely 1 sqft with a thickness of 1.8 each. and 1.4mm. The chemicals used in the finishing process are water, ammonia, Biofin AU BK64, Resicryl l 104, Pigment black, Allofin black 999, Melio resin 948, Compact FL, Emco thinner, Stucco 4648, Ha lacq O55, Ha Touchlon S, Filler MP, Pull up oil. The methods used include observation, interviews, direct work practices, and literature study. The impregnation method with the addition of ammonia is able to increase absorption into the skin and make the skin samples fuller which is done using padding. The results of the organoleptic test showed that skin laxity in skin sample 1 (4) was suitable, paint adhesion (4) was suitable, the bending test (3) was quite suitable. Meanwhile, in the skin samples 2 the organoleptic test results showed that the skin laxity (3) was quite suitable, the paint adhesion (2) was not suitable, and the bending test (2) was not suitable. Treatment on skin 1, namely by mixing ammonia with impregnation materials, is proven to reduce loose defects and can approach company standards.

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