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All Journal Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit
Emiliana Anggriyani
Department of Leather Processing Technology, Politeknik ATK Yogyakarta, 55188, Special Distric of Yogyakarta, Indonesia

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THE EFFECT OF ADDING SURFACTANTS TO TOP COAT FINISHING ON THE APPEARANCE OF WHITE SPOT DEFECTS ON STEERING WHEEL LEATHER Endah Oktaviyana; Nais Pinta Adetya; Emiliana Anggriyani
Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit Vol. 23 No. 1 (2024): Berkala Penelitian Kulit, Sepatu, dan Produk Kulit
Publisher : Politek ATK Yogyakarta Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58533/5naqhk16

Abstract

The aim of this research is to determine the effect of using surfactant in the top coat layer on the appearance of white spot defects on the steering wheel leather. The appearance of white spot defects in the top coat layer is not expected because it disturbs the aesthetics of the skin and has the effect of uneven color on the skin surface, so the appearance of white spot defects must be prevented. The raw materials used in this research were 4 pieces of crust cowhide, with a thickness of 1.1-1.4 mm and an area of ​​1 sqft taken from 4 pieces of full hide leather. The main chemical used is non-ionic surfactant. The addition of non-ionic surfactant to the top coat layer was carried out with varying percentages of 0.5%, 1%, 1.5% and 2%. The tests carried out were organoleptic tests and physical tests. The results of the organoleptic test with the addition of 0.5% surfactant still showed white spot defects, whereas with the addition of 1%, 1.5% and 2% surfactant it met customer standards. The results of the physical test with the addition of 1% and 1.5% surfactant showed that the color fastness test did not fade, while with the addition of 2% the results obtained faded.
THE EFFECT OF USING SURFACTAN TO REMOVE FATTY SPEW STAINS ON GOLF GLOVE LEATHER Selvyan Ellenika Putri; Elis Nurbalia; Emiliana Anggriyani
Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit Vol. 21 No. 2 (2022): Berkala Penelitian Kulit, Sepatu dan Produk Kulit
Publisher : Politek ATK Yogyakarta Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58533/8dyamp60

Abstract

Fatty spew is a stain found in leather that has been tanned with chrome. The appearance of fatty spew is caused by the content of free fatty acids which is too high. The purpose of this experiment was to determine the effect of using surfactant as a washing agent in removing fatty spew stains on golf glove leather. The raw materials used were 2 sheets of chrome tanned crust measuring 11 sqft with a weight of 206 g and a shaving thickness of 0.4-0.5 mm. The process carried out is by washing using a washing agent in the form of a surfactant as much as 0.6% of the weight of the skin. Washing was carried out for 30 minutes using a process drum. The results of the washing showed that fatty spew stains on the crust skin obtained maximum results after washing there was a slight change in the surface of the skin that felt a little rough, so additional polishing treatment was needed. The conclusion obtained is that the use of surfactants obtains maximum results in removing fatty spew stains on the crust skin.
Co-Authors Elis Nurbalia Endah Oktaviyana Nais Pinta Adetya Selvyan Ellenika Putri