Abstract:
A method of dry cleaning articles such as clothing and the like including the use of Dipropylene Glycol Monomethyl Etheracetate as the cleaning solvent and the use of vacuum to assist in the removal of solvent from the articles and the use of vacuum distillation of the solvent after a cleaning cycle.
Abstract:
A stearate-matrix, pre-spotter composition in solid stick form to be applied by direct contact to stained areas of fabric, thereby transferring the composition to the stained areas of the fabric. The composition includes an alkyl aromatic sulfonic acid and/or sulfonate, at least one nonionic surfactant, and an enzyme uniformly dispersed throughout a semi-hard stearate matrix. By the addition of sodium bicarbonate, the composition optimizes the pH to promote enzyme action, while simultaneously achieving a satisfactory drop point for shipping and warehousing. At pH levels from 8.2 to 9.0, acceptable hardness and transferability are still achieved, which was previously thought not to be possible without the addition of a critical amount of certain salts.
Abstract:
A dry cleaning composition comprising a dry cleaning solvent, a detergent and an organic ester of ortho-titanic acid and a process for its use which results in decreased soil redeposition.
Abstract:
A relay which is operable at very low power levels and which is highly versatile in its applications is shown to be characterized by high gain and high reliability and by simplicity of structure. The relay comprises a first terminal mounted on a base of electrically insulating material and a second electrically conductive member having a terminal portion secured to the base, having a contact arm movable between an open circuit position spaced from the first terminal and a closed circuit position engaging the first terminal, and having integral spring portions connecting the contact arm and terminal portion of the second member for normally biasing the contact arm to one of the noted circuit positions. The relay also includes an actuator wire secured between the base and the contact arm of the second member. The actuator wire is formed of a nickel-titanium alloy and is adapted to be deformed from an original length to a second length as the contact arm is moved to the one circuit position in response to the noted spring bias while the wire material displays a relatively low modulus of elasticity below a transition temperature. The actuator wire is also adapted to abruptly return to its original length and to display a relatively higher modulus of elasticity to move the contact arm to the other circuit position against the spring bias when the wire material is heated above its transition temperature. Means are provided for electrically self-heating the actuator wire to its transition temperature when relay operation is desired.
Abstract:
A PROCESS OF DRYING CLEANING TEXTILES AND GARMENT MATERIALS WITH COMPOSITIONS INCLUDING 1,1,2/TRICHLORO-1,2,2TRIFLUOROETHANE, TRICHLOROMONOFLUOROMETHANE, AND METHYL CHLOROFORM, WHEREIN THE MATERIALS ARE WASHED AND DRIED AT LOW TEMPERATURE, TOGETHER WITH STEPS OR PROCEDURES FOR THE ECONOMICAL HANDLING AND RECOVERY OF SOLVENT.
Abstract:
A process for drycleaning fabrics such as garments and other drycleanable materials, particularly highly soiled garments, by using hydrocarbon and chlorinated hydrocarbon solvents. The process includes a plurality of phases in a cleaning cycle wherein soiled garments are agitated in drycleaning solvent in each of the phases by mixing the solvent of a first phase with a detergent having a substantivity for the garments, removing the solvent of the first phase from the garments while the detergent is substantively retained by the garments and combining the solvent of a second phase with the garments containing the detergent for continued cleaning.
Abstract:
IN CONNECTION WITH A METHOD OF CLEANING SOIL FROM FABRICS BY TUMBLING TOGETHER THE FABRICS, A QUANTITY OF LIQUID AND A QUANTITY OF TRANSFER AGENT AND SUBSEQUENTLY SEPARATING THE SOILED TRANSFER AGENT FROM THE FABRICS, AN IMPROVED METHOD IS PROVIDED TO FACILITATE THE DISPOSAL OF THE TRANSFER AGENT WHEREBY THE SOILED SEGREGATED TRANSFER AGENT IS HEAT SHRUNK TO REDUCE ITS VOLUME AND TO CAUSE AT LEAST PARTIAL ADHERENCE BETWEEN AT LEAST SOME OF THE PIECES OF TRANSFER AGENT.