110results about "Investigating moisture content" patented technology

The present invention relates to a multiple-component material including a substrate and a printed layer on the substrate. The printed layer includes a color-changing composition to indicate a change in condition, such as a change in pH. The color-changing composition includes a matrix-forming component, a colorant, a surfactant and a pH adjuster. The pH adjuster includes a low molecular weight organic acid and a high molecular weight organic acid.

The present invention relates to a color-changing composition and a multiple-component material including a substrate and a printed layer on the substrate. The printed layer includes a color-changing composition to indicate a change in condition, such as a change in wetness. The color-changing composition includes a matrix-forming component, a leuco dye, a Lewis Acid, a neutral surfactant and an organic solvent.

The present invention relates to sensor for indicating a cumulative time period of presence of an ambient relative humidity, there the sensor comprising an indicator and a carrier and the indicator being located at one or more limited portions of the carrier. The carrier allowing migrating of the indicator within the carrier and the indicator causing an extension thereof by migrating from the one or more limited portions when the ambient relative humidity level exceeds a predetermined level. Further, the extension by migrating being detectable by a user and the cumulative time period being related to the extension by migrating and the characteristics of the indicator and the carrier. The present invention also relates to a method for reading the cumulative time period of presence of an ambient relative humidity indicated by a sensor and a method for providing a sensor for indicating a cumulative time period of presence of an ambient relative humidity by providing a carrier with an indicator.

Cobalt chloride, copper chloride, and zinc chloride have been used as a humidity-indicating medium. European Union classified cobalt chloride as a category 2 carcinogen while repeated exposure to copper chloride can lead to copper poisoning. Zinc chloride is also known to be very harmful to the environment. These materials are very toxic to aquatic organisms and may cause long-term adverse effects in the aquatic environment. The present invention relates to composition for non-toxic, non-hazardous, and environmentally friendly humidity-indicating agent and its application to humidity indicator, specifically humidity indicator card and humidity-indicating desiccant. The present invention discloses a humidity-indicating agent comprising; pH indicator dye, color-enhancing additive, and natural hygroscopic salt such as magnesium chloride and sodium chloride. All of the ingredients are carefully selected from non-toxic, non-hazardous, and environmentally friendly materials. The humidity-indicating agent changes color reversibly as a function of the relative humidity.

An irreversible humidity indicator card comprising an intermediate carrier member containing one or more holes, a clear, water vapor permeable first outer layer secured to the first side of the carrier member, a deliquescent material contained within the holes in the carrier member, a dark colored, absorbent sheet material secured to the back side of the carrier member to cover the holes in the carrier member and a second outer layer which covers the colored absorbent sheet material and a portion or all of the back side of the intermediate carrier member.

A test device and method is described for directly determining the liquid phase water content of organic solvents and indirectly the liquid phase water content of solids. The device and method utilize a reagent composition consisting basically the dried residue of a mixture of a colorimetric indicator material, preferably a cobaltous or cuprous salt, and a polymeric water barrier material, such mixture incorporated into a matrix which is contacted with or immersed into the liquid test sample, removed therefrom and the color change of the test composition correlated with a standard color chart to give a quantitative result of the amount of water in the test sample. When the method is applied to solids, the water must first be extracted from the solid using a substantially anhydrous extracting fluid such as reagent alcohol.

The present invention discloses an adhesive article. The adhesive article comprises a first layer comprising a transparent film, the first layer having a first major surface and a second major surface. Additionally, the adhesive article comprises a second layer comprising a fluid transport substrate, the second layer having a first major surface and a second major surface, the first major surface of the second layer being in contact with the second major surface of the first layer and a third layer comprising a fluid transportable ink, the third layer being associated with the second major surface of the second layer. The adhesive article then comprises an adhesive layer.

An absorbent article includes a topsheet layer, a backsheet layer and one absorbent core layer. The topsheet layer, absorbent core layer and backsheet layer each include a longitudinally directed side peripheral edge. The absorbent article further includes an aqueous medium-sensitive coating composition for triggered release of active ingredients from the absorbent article. The aqueous medium-sensitive coating composition is affixed to the absorbent article adjacent a longitudinally directed side peripheral edge. The coating composition includes a betaine ester or betaine ester derivative having a functional active group derived from a fragrance with a hydroxyl group, a color changing visual indicator chemistry, where the visual indicator chemistry is selected from at least one of the group of a pH indicator dye and pH adjuster, a thermochromic dye and a polarity-sensitive dye.

The present invention discloses an adhesive article. The adhesive article comprises a first layer comprising a fluid transport substrate, comprising a low molecular weight hydrophilic polymer resin, the first layer having a first major surface and a second major surface. The adhesive article additionally comprises a second layer comprising a fluid transportable ink, the second layer being associated with the second major surface of the second layer. The adhesive article also comprises an adhesive layer.

An irreversible humidity exposure dose indicator device, including a housing sealed at a first end thereof and adapted at a second end thereof to admit ambient gas ingress into an interior volume containing chromogenic material. The chromogenic material in contact with water irreversibly absorbs such water to produce a change whose extent is correlative of cumulative exposure of the device to humidity. The device may be configured as an indicator card including an intermediate permeable membrane coated on a first side thereof with a layer of a deliquescent solid and being in contact on a second side thereof with a layer containing a reactive indicator, with a water-permeable layer adjacent to the layer containing the deliquescent coating, enclosed within a water-impermeable transparent enclosure. The device can include an opening to the permeable layer that is shielded by a removable member that is removed to initiate the dosimetric process, and permit water vapor to diffuse through the opening and liquefy the deliquescent material, so that the liquid permeates through the membrane and a visible indication of the location of the wet front is seen as the water contacts the chromogenic material. A scale can be printed on the exterior of the enclosure to permit a viewer to see the progress of the indication, e. g. of a color front.

An organic electro-luminescent display device according to an embodiment of the present invention includes a thin film transistor substrate including a base member; an organic material layer disposed on the base member in a display area and held between a lower electrode and an upper electrode; a dam formed on the base member in an external area surrounding the display area; and a sealing layer formed on the organic material layer, the sealing layer covering the display area, the sealing layer including a sealing planarization film formed of organic material and formed in an area surrounded by the dam, the sealing layer further including a sealing film formed of inorganic material and covering the dam. The dam includes moisture detection member.

An artificial test soil comprises particulate, hair, and fiber components, wherein said particulate component consists of mineral, food, and plant materials, so chosen and proportioned as to correlate to a typical soil found in the home. The test soil may be used to test cleaning products by application of a known amount thereof to a surface, cleaning of said surface, and determination of the amount of said soil removed from said surface.

A low-cost, easily manufactured humidity and mold indicator for buildings that incorporates a one-piece transparent plastic injection-molded body. Appearance of a warning icon or a change in color alerts the owners or occupants of a building to a hidden leak and thereby prevents costly structural damage, cosmetic damage and mold damage to building components. The indicator is easily inserted and secured into a drilled hole in panel such as a wall or soffit. In one embodiment, the indicator snaps into place after being fully inserted into the panel. In another embodiment, a retainer inserted into the hole holds the indicator enabling easier removal of the indicator for replacement or for inspection of the area behind the panel. An optional removable cap can be painted the same color as the wall. An optional mask covers the integral viewing window during painting of the device.