Abstract:
The present invention relates to a process for producing a fabric-elastomer composite that, when transfer or film coated, is preferable for use as an artificial leather substrate. The inventive procedure involves (a) producing an elastomer composition of at least four ingredients (an anionically-stabilized waterborne polymer dispersion, an acid-generating chemical, a cloud-point surfactant, and a foam-stabilizing surfactant); (b) incorporating sufficient gas into the liquid mixture to generate a spreadable foam; (c) applying the foam onto a porous textile substrate; (d) heating said foamed fabric until the elastomer coagulates over the fabric substrate; and (e) drying the resultant composite without destroying the coagulated structure. The resultant composite obtains a suppleness that is similar to that of leather and a surface that is suitable for transfer coating to produce artificial leather. The composite may be utilized as upholstery fabric in furniture or in automobiles, apparel, and the like. The particular composites produced are also contemplated within this invention.
Abstract:
The present invention relates to a process for producing a knitted textile material that, when transfer or film-coated, is suitable for use as an artificial leather substrate. The inventive procedure involves (a) producing an elastomer composition of at least four ingredients (an anionically-stabilized waterborne polymer dispersion, an acid-generating chemical, a cloud-point surfactant, and a foam-stabilizing surfactant); (b) incorporating sufficient gas into the liquid mixture to generate a spreadable foam; (c) applying the foam onto a porous knitted textile substrate; (d) heating said foamed fabric until the elastomer coagulates over the fabric substrate; and (e) drying the resultant composite without destroying the coagulated structure. The resultant composite obtains a pliability, compressibility, and drape that is similar to that of leather and a surface that is suitable for transfer or film-coating to produce artificial leather. The composite may be utilized as upholstery fabric in furniture or in automobiles, apparel, and the like.
Abstract:
A method of coating a hydrophobic fibrous material with an amphiphilic polyelectrolyte which involves coating the hydrophobic fibrous material with a foam under conditions sufficient to substantially uniformly coat the hydrophilic fibrous material with the amphiphilic polyelectrolyte. The foam is generated from a solution of an amphiphilic polyelectrolyte in water. The hydrophobic fibrous material may be a polyolefin, such as polyethylene or polypropylene. The hydrophobic fibrous material also may be a nonwoven web, such as a meltblown or spunbonded nonwoven web. When the hydrophobic fibrous material is a nonwoven web, the web typically is coated with the foam, vacuum extracted, nipped, and dried.
Abstract:
A foam composition and a process to treat one surface of a fibrous article comprising at least one amphiphilic protein and at least one textile effect additive. The foam composition can impart oil and water repellency when a fluorinated additive is used. The foam composition can impart water repellency when a non-fluorinated additive is used. The described amphiphilic proteins can be hydrophobins. The density of the foam suitable for the process is from about 0.01 to about 0.5 grams per milliliters.
Abstract:
A light-blocking article is designed to be lightweight but effective to block most incident actinic radiation and can be designed into fabrics, curtains, and other materials. Such an article has an opacifying layer that is capable of blocking predetermined electromagnetic radiation. The article contains (a) porous particles comprising a continuous polymeric binder and pores within the continuous polymeric binder, the porous particles having a glass transition temperature of at least 25°C and a mode particle size of at least 2 μιη and up to and including 50 μm. The article also contains an opacifying colorant that absorbs the predetermined electromagnetic radiation (such as within 400 nm to 700 nm), in an amount of at least 0.001 weight % based on the total dry weight of the opacifying layer, and a matrix polymer in which the porous particles and opacifying colorant are dispersed.
Abstract:
Espuma estável preparada por meio de um sistema pressurizado com o emprego de um gás propelente para uso no beneficiamento de artigos têxteis e não-tecidos e aparato que tem por finalidade a obtenção de uma espuma estável para ser usada na indústria têxtil e de não-tecidos. A invenção concentra sua inovação na geração de um produto, no caso uma espuma estável, pronta para ser utilizada e, com particular aplicação na indústria têxtil e de não-tecidos. Nesta concepção inventiva, a espuma estável é formada por meio de um sistema pressurizado que emprega um gás propelente, podendo ser previamente preparada em embalagens do tipo latas de aerossol, ou cilindros do tipo extintores de incêndio, ou ainda, por meio de um sistema preparatório "in loco". A espuma estável possui uso como um veículo para aplicação de tratamentos químicos em substratos tecidos ou não-tecidos; para tanto, faz uso de cilindro (C1) injetor de base para espuma, cilindro (C2) injetor de gás propelente, os quais se comunicam com um tanque pulmão (TK), sendo a saída da espuma pronta (S1) controlada por válvula (V4), ou seja, utiliza-se um sistema pressurizado com o emprego de um gás propelente e da própria composição para a produção da espuma, diferentemente do que ocorre nos sistemas de beneficiamento do estado da técnica.
Abstract:
Reinigungstuch umfassend ein textiles Trägermaterial, welches zumindest teilweise mit einem PVF-Mikroschaum in einer solchen Menge versehen ist, dass der Anteil an PVF-Mikroschaum am Gesamtgewicht des Reinigungstuches weniger als 60 Gew. %, bevorzugt kleiner als 40 Gew.% ist, wobei das textile Trägermaterial kein PVA oder PVA in einer Menge von weniger als 50 Gew.% aufweist.
Abstract:
A backside coated fabric includes a fabric substrate having a front side (face) and a back side. A water permeable spacer layer is applied to the back side of the fabric substrate. The water permeable spacer layer allows penetration of water into its matrix when hydrostatic water pressure is applied to the face of the fabric substrate. The water permeable spacer layer provides a smooth coating surface onto which subsequent water impermeable barrier layers can be applied creating a physical separating layer between the fabric substrate and the water impermeable barrier layer. A water impermeable barrier layer is disposed over the water permeable spacer layer to provide an impermeable water barrier layer that does not allow penetration of water through the coated fabric when hydrostatic water pressure is applied to the face of the fabric construction.
Abstract:
The present invention relates to a process for the production of coated textiles in which a textile substrate is firstly brought into contact with an aqueous dispersion comprising at least one inorganic salt and at least one modified cellulose, afterwards it is brought in contact with an aqueous dispersion comprising a polymer selected from polyacrylate or polybutadiene and at the end this polymer is precipitated.
Abstract:
A process for production of coated textiles is provided, in which a textile substrate is firstly brought into contact with an aqueous dispersion comprising at least one inorganic salt and at least one modified cellulose, secondly brought into contact with an aqueous dispersion comprising at least on polymer selected from the group consisting of polyacrylate and polybutadiene.