Tech Exchange

Connection of Two Rubber-Impregnated Cloth Surfaces

A way is sought to allow consumers to connect and disconnect two rubber-impregnated cloth surfaces in a consistent manner that is easy to assemble and disassemble. The cloth surfaces are in close proximity; the length of the connection will be about two meters. The connection must exhibit longterm durability and be able to withstand in-use forces. The joining method should have similar ease-of-assembly as a zipper and be silent.

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Technologies to Enhance Moisture, Vapor Transmission

A company is looking for environmentally inert methods to change the moisture management properties of conventional apparel textiles. The moisture management effect changes the way in which water vapor, moisture, and other liquids move through textiles, and can be activated via pH, temperature, or rising moisture levels. The solution would be applied in the presence of a surfactant. The effect does not have to be durable because the solution permits reapplication.

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New Coating Chemistries with Excellent Outdoor Durability

A multinational advanced materials company is seeking wet coating technologies that show excellent weathering and durability. The coatings need to be applied to glass substrates. The coating needs to have excellent outdoor durability in excess of 10 years, have a hardness of at least 2H, and be optically transparent (<1.0% haze might be acceptable). As well as the coatings being suitable for application in a solution, they also need to be able to be used as a binder or cross-linking component of coatings.

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Flame-Resistant Fastening Between Two Fabrics

A flame-resistant fastening between two fabrics is sought, and must be simple to operate. The connection should resist frequent flexing, and must have a breaking strength of 120 kilogram-force. If folded cross-wise, it must withstand 40 kilogram- force, and may need to stand up to direct flame for 50 seconds or more. The resulting connection between the fabrics must be aesthetically pleasing. When subjected to flame, the connection cannot emit any toxic fumes.

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Board Design Test Vehicle

The Board Design Test Vehicle is a method for objective evaluation and qualification of supplier capabilities for the fabrication of multilayer printed circuit boards. It is used to analyze and assess technical capability and reliability of products that are provided by a supplier, and provides a mechanism for supplier improvement with validation. The design incorporates features that allow for analysis of variables data to determine actual process capabilities statistically and accurately, with a minimal amount of effort. Data can be plotted with distributions to determine process capability, revealing whether the data is “filtered” or cherry-picked, and can help evaluate the repeatability and consistency of processes. The ability to validate design rules is provided and matches supplier capabilities to actual designs.

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Flexible Gas-Tight Film

The clay film “Claist,” which comprises a natural or synthetic clay as a main component, exhibits uniform orientation of clay particle laminates. It is flexible, has a mechanical strength sufficient for use as a self-standing film, and has a structure in which laminates of clay particles are highly oriented. The thickness of Claist is 10-100 micrometers, and can be made thicker by layering. The gas permeability at room temperature to hydrogen, oxygen, nitrogen and other inorganic gases is lower than the detectable limit. The gas barrier performance of Claist remains unchanged up to 600°C. Claist is flexible enough to be folded like paper without cracking. The standard Claist film shows a tensile strength of 19.2 MPa and an elongation of 2.2%.

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Eliminate Color Fading in Washable Cotton Garments

Cotton garments, especially dark-colored garments, lose their initial color through repeated washings and exposure to sunlight. Needed is a new technology or technology system that will give cotton garments improved color fastness, but which does not depend just on using a more expensive dye with higher fastness. Such a treatment could take place during one of the several stages in the manufacture of cotton garments.

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