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Effects of Crosslinker and Silicon to Enhance Taber Abrasion and Physical Properties of Finished Leather for Upholstery Furniture Atiqa Rahmawati; Elis Nurbalia; Rini Tiyastuti
IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) Vol 10, No 2 (2025): June 2025
Publisher : IJFAC (Indonesian Journal of Fundamental and Applied Chemistry)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24845/ijfac.v10.i2.79

Abstract

Finishing is one of the stages in leather processing. The addition of silicone and crosslinker in the top coat of the finishing stage of leather upholstery furniture is used to increase abrasion resistance, which is a critical factor in determining the life and quality of leather furniture. The aim of this study was to determine the influence of silicone and crosslinker additions on the abrasion resistance and physical properties of leather upholstery furniture. The leather material used is dyed crust leather with a thickness of 1.2-1.4 mm with an area of 1.5 sqft. The addition of crosslinker and silicone is applied only to the top coat. The analyses performed include physical skin analysis (adhesion test, rubbing fastness, glossy test, and flexing) and organoleptic tests (abrasion and smoothness tests). The addition of crosslinker and silicone can affect the physical and organoleptic quality of leather. The addition of crosslinker and silicone to the top coat showed the best results on upholstery leather sample D (3% crosslinker and 4% silicone).The results of statistical tests using the multinomial logistic regression method in organoleptic testing and ANOVA in physical testing showed that only crosslinker had a significant effect on the response. 
SUBSTITUTION OF SOLVENT-BASED SYSTEMS WITH WATER-BASED IN THE TOPCOAT FINISHING OF LAMINATED FOIL LEATHER Nely Cahyani; Atiqa Rahmawati; Emiliana Anggriyani
Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit Vol. 24 No. 2 (2025): 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/yc11qw87

Abstract

Laminated leather is widely used types of leather due to its appealing surface appearance and mechanical durability. However, the conventional top-coating process of laminated leather typically employs solvent-based compounds such as butyl acetate, which contain volatile organic compounds (VOCs) that contribute to environmental pollution and health hazards. The substitution of solvent-based with water-based formulations in the top coat represents an important step toward more sustainable and eco-friendly leather manufacturing practices. In this study, leather samples were prepared and subjected to three different treatments: K1 (water-based), K2 (solvent-based), and K3 (without solvent). The finishing stages included milling, buffing, foil lamination, additional milling, and top coat spraying. The finished leathers were evaluated organoleptically through several assessments, including foil adhesion, surface gloss, surface texture, and color shift analysis. The findings revealed that the type of top coat significantly affected both the visual and adhesive properties of the laminated leather. The water-based top coat produced a slightly rougher surface with lower gloss and a darker tone, while the solvent-based top coat resulted in a smoother, glossier finish that retained the leather’s original color. Furthermore, the water-based top coat exhibited the highest foil adhesion strength, achieving an average score of 3.7 (on a scale of 4), compared to 2.6 for solvent-based and 1.0 for untreated samples. These results indicate that water-based top coats can effectively enhance foil adhesion while reducing the environmental impact, making them a promising alternative for sustainable laminated leather finishing in upper shoe production.
Nano-fatliquoring agent berbasis minyak sawit untuk industri penyamakan kulit: Review Study Atiqa Rahmawati; Heru Budi Susanto; Fadzkurisma Robbika; Baskoro Ajie; Erlita Pramitaningrum
Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit Vol. 25 No. 1 (2026): 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/g0gr5w98

Abstract

The leather tanning industry is currently transforming toward sustainability through the application of nanotechnology. The fatliquoring process is a crucial stage for providing softness and mechanical strength to leather. Palm oil has great potential as a raw material for fatliquoring agents due to its abundant availability and favorable fatty acid composition. This review discusses the development of palm oil-based nano-fatliquoring agents, which covers fabrication techniques via chemical modifications (such as the use of organosilicon), sonochemical (ultrasonic) physical methods, and the stability of Pickering emulsions. Characterization is emphasized on the analysis of droplet size, zeta potential, and leather fiber morphology using SEM/TEM. The advantage of nanotechnology lies in the deeper penetration of droplets into collagen fibers, which not only enhances mechanical properties but also provides additional functions such as UV resistance and antimicrobial activity. Overall, the utilization of palm oil by-products like deodorizer distillate (DD) in a nano-emulsion offers strong future viability for cleaner production in the global leather industry.