| Judul | LAPORAN PENELITIAN CAT UNTUK KULIT SAMAK NABATI |
|---|---|
| Tahun | 1992 |
| Pelaksana | IR. Koentro Soebijarso, Ir. Sulistiyah WRD |
| Pembantu Pelaksana | |
| Kata Kunci | Cat, kulit, Nabati |
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mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin;} </style> <![endif]--> </div> <p align="justify" class="MsoNormal"><span style="font-size:12.0pt;line-height:115%;font-family: "Times New Roman","serif"">Penelitian cat tutup untuk kulit samak nabati ini bertujuan untuk mendapatkan cara finishing kulitsamak nabati yang menghasilkan kulit dengan cat tutup yang tahan gosokan/goresan. Dalam percobaan digunakan 6(enam) side kulit tas/kopor samak nabati yang masing-masing dibatasi menjadi 3 bagian untuk 2(dua) variasi cara pengecatan tutup. Setiap variasi menggunakan pigmen warna ochre, maroon, coklat, dan ungu untuk pengecatan tutup kulit yang sebelumnya telah dicat dasar masing-masing dengan satu kali ulangan. Kulit hasil pengecatan tutup kemudian disetrika dengan suhu 70</span><span style="font-size:12.0pt;line-height:115%;font-family:"Cambria Math","serif"; mso-bidi-font-family:"Cambria Math"">℃, tekanan 100 Bar selama 1detik. Kemudian dilakukan uji fisis yang meliputi kuat rekat, ketahanan gosok dan ketahanan goresan dari cat tutup, baik dalam keadaan kering maupun basah. Evaluasi hasil menunjukkan bahwa variasi II menghasilkan cat tutup dengan sifat fisis yang lebih baik, yaitu kekuatan rekat cat tutup kering(800 – 1887,5) g/cm, kekuatan rekat cat tutup basah (50 – 275) g/cm, ketahanan gosok cat tutup kering dengan nilai(4-5) pada skala abu-abu, dan nilai 5 pada skala penodaan, ketahan gosok cat tutup basah dengan nilai (4-5) pada skala abu-abu, dan nilai (3-5) pada skala penodaan, ketahanan goresan kering dengan nilai (2-4) pada skala abu-abu, dan<span style="mso-spacerun:yes"> </span>ketahanan goresan basah dengan nilai(3-5) pada skala abu-abu. Cat tutup dengan warna ochre memberikan hasil yang lebih baik. Adapun formula dari cat tutup variasi IIadlah sebagai berikut : Untuk lapisan pertama digunakan campuran 40 bagian pasta pigmen, 40 bagian emulsi resin lunak, 40 bagian emulsi resin keras dan 60 bagian air dengan air diperlukan 2 kali ulas, dan disemprot 1-2 kali, sedang untuk lapisan penutupnya adalah 200 bagian emulsi lak keras dan 300 bagian super Thinner yang perlakuannya (1-2) kali semprot.</span></p> |
| Kategori | Kulit |