Crust leather quality with eco-printing dyeing method

Abstract

Background/Objectives: The eco-printing method is a dye transfer process that produces natural shapes of leaves and flowers on sheep leather. The research objective aimed at determining the quality of sheep crust leather using the eco-printing method. Methods/Statistical analysis: The research applied the experimental method using sixteen sheets of sheep crust leather. The study employed a completely randomized design. The treatments involved soaking the crust leather in a mordant of alum solution with several soaking times, namely (T0) = 0 hours, (T1) = 12 hours, (T2) = 24 hours, and (T3) = 36 hours; each of the treatments was repeated four times. The research variables included wet rubbing resistance, sweat resistance, washing resistance, tear strength, elongation, and seam strength. The data were analyzed using anova. Findings: The results showed that the soaking time did not significantly affect (P> 0.05) on tear strength, elongation, and seam strength. However, it had a significant effect (p <0.05) on wet rubbing resistance, sweat resistance, and washing resistance. Therefore, the crust leather soaked in the mordant of Aluminum potassium sulfate for 36 hours before being dyed using the ecoprinting method did not show any decrease in its physical quality. It even showed some improvements of wet rubbing resistance with the value of 4 and 5, sweat resistance with the value of 4, and washing resistance with 4 to 5. Novelty/Applications: Natural dyeing using the eco-printing method can be applied to sheep crust leather to improve the quality of wet rubbing resistance, sweat resistance, and washing resistance. It is also recommended that crust leather be soaked in Aluminum potassium Sulfate's mordant solution for 36 hours.

The effect of pH and tanning agents on the quality of sheep leather using the ecoprinting dyeing method

“…Mordant can increase the adhesion of various natural dyes, aluminum compounds in the mordant form a chemical bridge between dye and leather fiber molecules [14]. In contrast, vegetable-tanned leather does not have mineral bonds in the fiber, hence, the addition of mordant does not provide maximum effect to resist fading [15,16]. The pH affected the color sharpness as demonstrated by P < 0.05 but not the colorfastness with P = 0.95.…”

The Color Fastness and Quality of Eco-Printed Leather with Different Types of Mordant in Natural Dyes from Mangrove Extract (Rhizophora mucronata)

“…The eco-print leather method used a modified method (Pancapalaga et al, 2021). The crust leathers for eco-printing were soaked in water for 6 hours until they turned bluish.…”

Pelatihan Ecoprint sebagai Pemberdayaan Ekonomi Kreatif bagi calon Pengusaha dengan Pendekatan ABCD models

“…Bahan alam yang banyak dimiliki tersebut sebagaimana yang dipaparkan oleh Rahutami, Hastuti, Kekalih, & Purnama, (2020) dapat digunakan sebagai pewarna alami dan dapat meningkatkan daya jual kain. Bahan alam tersebut selain digunakan sebagai pewarna juga dapat digunakan dalam teknik alternative pembuatan batik selain dengan tulis dan cetak, yaitu dengan teknik ecoprint ( (Pancapalaga, 2021;Regina et al, 2020;Sifaunajah, Tulusiawati, & Af'idah, 2020;Widyaningsih, Margana, Supriyo, Mulyono, Wahyono, Bono, Suwoto, Herlambang, 2020) Mayoritas pelaku usaha kreatif hendaknya memiliki keterampilan untuk meningkatkan pendapatannya sebagai hasil usahanya. Untuk meningkatkan keterampilan yang dimiliki, dibutuhkan pelatihan tertentu agar pelaku usaha dapat mengembangkan usahanya.…”