Aqueous dispersions of polyurethane–polyvinyl pyridine cationomers and their application as binder in base coat for leather finishing

Sundar, Saimani; Vijayalakshmi, N.; Gupta, Sanjeev K.; Rajaram, Rama; Radhakrishnan, Ganga

doi:10.1016/j.porgcoat.2006.04.001

Cited by 53 publications

(40 citation statements)

References 19 publications

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“…To obtain leather with water-proof properties, it is supposed to apply thin polymeric layer to its surface [1][2][3][4][5] or the use of a polymer composition containing nanoscale particles [6][7][8][9] at the finishing step of processing. Materials produced in this manner can be classified as leather with a smooth upper surface [1].…”

Section: Introductionmentioning

confidence: 99%

Effect of the Morphology of Leather Surface on the Hydrophobic-Hydrophilic Properties

Серенко¹,

Nizamova²,

Kalinin³

et al. 2014

AMPC

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Natural leathers (split, velour split, nubuck) ware investigated. Solution of fluorine silane in ethanol was applied as the hydrophobic agent. It is shown that the microstructure of the leather surface, provided its structural elements possess hydrophilic properties, determines the wetting regime and duration of the induction period of changeover from heterogeneous to homogeneous wetting. The heterogeneous regime of wetting is distinguished by low rates of spreading and absorbing. The homogeneous wetting is characterized by high rates of spreading and absorbing of a water drop. A necessary condition of the stable heterogeneous wetting regime and achieving hydrophobicity of leather with structurally inhomogeneous face layer is to preserve the microstructure features of their surface at hydrophobic treatment. The morphological peculiarities of split and ground leather ensure stable hydrophobic properties after application of efficient hydrophobizators.

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Section: Introductionmentioning

confidence: 99%

Effect of the Morphology of Leather Surface on the Hydrophobic-Hydrophilic Properties

Серенко¹,

Nizamova²,

Kalinin³

et al. 2014

AMPC

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“…Kulit merupakan material yang memiliki keunikan dalam hal kekuatan, ketahanan, keelastisan, kenyamanan, dan kekakuan (stiffness), sehingga kedudukannya masih belum tergantikan bahan lain (Sundar et al, 2006). Akan tetapi, semakin meningkatnya kepedulian masyarakat pada penyembelihan hewan dan langkanya bahan mentah menyebabkan tingginya permintaan akan kulit yang berkualitas baik (Sundar et al, 2006;Olle et al, 2014).…”

Section: Pendahuluanunclassified

Pengaruh Penambahan Jumlah Pigmen Pada Lapisan Dasar (Base Coat) Pada Proses Finishing Terhadap Sifat Fisik Kulit Sapi

Griyanitasari

2017

BuletinPeternak

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INTISARIPermintaan kulit yang bermutu semakin meningkat tetapi ketersediaannya semakin menurun. Teknologi pasca penyamakan (finishing) merupakan hal yang dapat dilakukan untuk menutupi kerusakan kulit. Salah satu bahan finishing kulit yang dapat digunakan untuk menutupi cacat kulit adalah pigmen. Penelitian ini bertujuan untuk mengetahui pengaruh penambahan jumlah pigmen pada lapisan dasar terhadap sifat fisik kulit tersamak. Kulit sapi yang sudah disamak ulang diberi perlakuan finishing dengan variasi pigmen 7,5; 10; 12,5; 15; dan 17,5% pada lapisan dasar. Hasil penelitian menunjukkan bahwa pigmen berpengaruh pada penyerapan air selama dua jam dan ketebalan lapisan finishing. ABSTRACT The demand of high quality leather is increasing, but it's availability gradually decrease. Finishing of the tanning process is technology to upgrade the quality of leather. Pigment is one of the materials forfinishing leather that can correcting grain. The aim of this research was to determine the best variation of pigment addition as base coat on physical properties of leather. Retanned cow hide was treated using finishing agent for 7,5; 10; 12.5; 15; and 17.5%

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“…[4,5]. In leather finishing, these resins are employed to produce films which protect the leather from mechanical damage, increase its stability when in contact with moisture and give the desired appearance, covering, color, brightness, texture and other visual and surface characteristics [6]. The resins are divided according to its application over the leather surface: the resins used for the base layers that can be combined with pigments and should be softer and more flexible and the resins used for the top layers that are responsible for physical properties [7,8,9].The base layer is a soft layer applied in contact with the leather surface.…”

Section: Introductionmentioning

confidence: 99%

“…FTIR analysis were used to study molecular structures of polymer blends composed of casein, polyurethane and acrylic dispersions application in base layer for leather finishing [6,19,26,27,[38][39][40][41]. With differential scanning calorimetry (DSC) thermo-analytical technique, the difference in the amount of heat required for increase the temperature of a sample and reference is measured as a function of temperature.…”

Section: Introductionmentioning

confidence: 99%

“…With differential scanning calorimetry (DSC) thermo-analytical technique, the difference in the amount of heat required for increase the temperature of a sample and reference is measured as a function of temperature. Authors [6,26,27,[41][42][43][44] studied the thermal stability of polyurethane and polyacrylates copolymers applied on the leather surface.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Behavior of Polymer Films and its Blends for Leather Finishing

Agustini¹

2018

TTEFT

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Aqueous dispersions of polyurethane–polyvinyl pyridine cationomers and their application as binder in base coat for leather finishing

Cited by 53 publications

References 19 publications

Effect of the Morphology of Leather Surface on the Hydrophobic-Hydrophilic Properties

Effect of the Morphology of Leather Surface on the Hydrophobic-Hydrophilic Properties

Pengaruh Penambahan Jumlah Pigmen Pada Lapisan Dasar (Base Coat) Pada Proses Finishing Terhadap Sifat Fisik Kulit Sapi

Behavior of Polymer Films and its Blends for Leather Finishing

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