Conductive leather materials and methods for making the same are provided. The conductive leather materials may have a conductivity suitable to operate touch-sensitive electronic devices without a conductive path to the human body.

A method for making an upgraded and embossed laminar supporting element, in particular leather, by applying several layers on the surface of the leather, including an aqueous base coat and a lacquer coat and partially removing water and/or solvent from said layers followed by embossing and optionally further drying.

The invention relates to a dark, flat element, preferably a plastic, lacquer coating or fiber material, having reduced density, low heat conductivity and low solar absorption. The flat element has a relatively high reflection infrared range of the electromagnetic spectrum reduce heating by sunlight in the near infrared dark tinting in the visible range. Low density conductivity are obtained inter alia by inserting in the near in order to area despite and low heat light filling materials into the flat element. Said flat element can be used in places where surfaces are dark tinted for aesthetic or technical reasons but should not heat up in sunlight and should give off little heat when touched by hand or by other parts of the body. Other areas of application include surfaces which should have a heat insulating effect in addition to the above-mentioned characteristics.

Compositions containing an aminoalkyl-containing polydimethylsiloxane, a silicon compound containing silicon-bonded alkoxy groups, and a zirconium, titanium, or zinc carboxylate catalyst provides water repellency and stain resistance to substrates, particularly woven and non-woven textile and leather substrates.

The present invention discloses a process for preparing a flame-retardant, lightfast, low fogging and degradable car seat leather wherein ammonia salt deliming is replaced with an ammonia free one, tetrakis hydroxymethyl phosphonium sulfate and the flame-retardant starchy leather surfactant are used as the tanning agents to replace the conventional chrome tanning agent, hot water washing is used to reduce the fogging value of the seat leather, the flame-retardant performance is enhanced by combination of retanning, greasing and coating, the lightfast material is applied to enhance the lightfastness of the coating and the spray coating is replace with the roller coating to lower the consumption of the paints.

The present invention provides aqueous composition comprising a multi-stage acrylic emulsion polymer having a first stage polymer of from 0.5 to 4 wt. %, based on the total weight of monomers used to make the first stage polymer, of a copolymerized carboxylic acid or salt group containing monomer, and having 10 to 30 wt. %, on total solids of the multi-stage acrylic emulsion polymer, of a second stage polymer of from 3 to 15 wt. % of a copolymerized hydroxyl group containing monomer, the first stage polymer having a glass transition temperature (Tg) by dynamic mechanical analysis (DMA) of less than 10 C. and the second stage polymer having a Tg (DMA) of greater than 80 C.; and (ii) from 25 to 75 wt. %, based on the total solids weight of the multi-stage acrylic polymer, of a polyurethane.

An additional antimicrobial protection step applied to leather in the post-tanning process which incorporates a biocide composition and an additive that allows its presence to be identified by luminescent effect, and encryption techniques of the luminescence, wherein the composition is added in the tanning process immediately after the addition of chromium or titanium salts in an amount between 0.1% and 5% of the weight of the material to be tanned and comprises silver phosphate glass; silicone; aliphatic hydrocarbons; water, and the luminescent additive is added in an amount between 0.1% and 5% of the weight of the material to be tanned and comprises calcium fluoride; erbium (III) fluoride; of ytterbium (III) fluoride; a maximum of 5% of thulium (III) fluoride; and a maximum of 5% of europium (III) fluoride, with respect to the total weight of the luminescent additive.

A method for antimicrobial protection applied to hides in the tanning process incorporating a biocidal composition and an additive allowing the identification by a luminescent effect, and using luminescence encryption techniques, wherein the composition is added in the tanning process immediately after adding the chromium or titanium salts in an amount between 0.1% and 5% by weight of the material to be tanned and comprises: silver phosphate glass; silicone; aliphatic hydrocarbons; and water, and the luminescent additive is added in an amount between 0.1% and 5% by weight of the material to be tanned and comprises silica; alumina; calcium fluoride; erbium (III) fluoride; ytterbium (III) fluoride; thulium (III) fluoride; and europium (III) fluoride.

The disclosure provides leather articles and a method for making leather articles comprising a substrate and a coating comprising a cellulose derivative having improved colorfastness to rubbing. The cellulose derivative may be methyl cellulose, ethyl cellulose, ethyl methyl cellulose, carboxymethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxyethyl methyl cellulose, hydroxypropyl methyl cellulose, ethyl hydroxyethyl cellulose, cellulose acetate, cellulose triacetate, cellulose propionate, cellulose acetate propionate, cellulose acetate butyrate, microcrystalline cellulose, cellulose nitrate, or cellulose sulfate.

A radiation curable white inkjet ink including at least 18.5 wt % of white pigment and 0 to 35 wt % of organic solvent, both weight percentages based on the total weight of the radiation curable white inkjet ink and a polymerizable composition containing 0 to 15.0 wt % of one or more polyfunctional polymerizable compounds, and at least 85.0 wt % of one or more monofunctional polymerizable compounds; and a specific polymerizable composition.