摘要:
The invention provides a cleaning method in which a solvent such as densified carbon dioxide can be used for rapid and efficient cleaning, but with decreased damage to solid components such as buttons. The method comprises contacting a substrate to be cleaned with a first fluid, removing the first fluid from contact with the substrate while replacing with a second fluid, and recovering the substrate substantially free of the first and second fluids and from the contaminant. The first fluid is a densified gas while the second fluid is a compressed gas. A preferred embodiment of the method includes the use of a pretreatment designed for compatibility with the densified first fluid.
摘要:
A dry cleaning system particularly suited for employing supercritical CO.sub.2 as the cleaning fluid consisting of a sealable cleaning vessel containing a rotatable drum adapted for holding soiled substrate, a cleaning fluid storage vessel, and a gas vaporizer vessel for recycling used cleaning fluid is provided. The drum is magnetically coupled to a motor so that it can be rotated during the cleaning process. The system is adapted for automation which permits increased energy efficiency as the heating and cooling effect associated with CO.sub.2 gas condensation and expansion can be channeled to heat and cool various parts of the system.
摘要:
A dry cleaning system particularly suited for employing supercritical CO.sub.2 as the cleaning fluid consisting of a sealable cleaning vessel containing a rotatable drum adapted for holding soiled substrate, a cleaning fluid storage vessel, and a gas vaporizer vessel for recycling used cleaning fluid is provided. The drum is magnetically coupled to a motor so that it an be rotated during the cleaning process. The system is adapted for automation which permits increased energy efficiency as the heating and cooling effect associated with CO.sub.2 gas condensation and expansion can be channeled to heat and cool various parts of the system.
摘要:
The invention provides a cleaning agent and method for removing stains from fabrics comprising a combination of dense gas, a source of hydrogen peroxide and an organic bleach activator therefor.
摘要:
The invention provides a cleaning agent and method for removing stains from fabrics comprising a combination of dense gas, a source of hydrogen peroxide and an organic bleach activator therefor.
摘要:
The invention provides a method and composition for the removal of nonpolar stains from a fabric comprising:contacting said stains with densified carbon dioxide and a cleaning adjunct in mixture with said carbon dioxide.
摘要:
Storage-stable, low temperature-active liquid hydrogen peroxide laundry bleaching compositions are provided. The compositions contain a dispersion of a solid particulate peracid activator in acidic aqueous hydrogen peroxide. The activator is insoluble at the acidic conditions of storage but dissolves and activates the hydrogen peroxide at the alkaline conditions of use in laundry. Optionally the bleaching compositions can contain optical brighteners, surfactants, and/or fabric softeners.
摘要:
A system, method and article of manufacture are provided for performing a comparative analysis of vendors of network-related products or services. The present invention includes first determining a current network framework. Thereafter, a graphical depiction of the current network framework is displayed along with a plurality of components thereof. Next, a comparative analysis of at least two vendors of network-related products or services is presented. This is accomplished with indicia coding that highlights various aspects of the vendors.
摘要:
The invention relates to a bleaching composition containing an oxidant bleach and enzyme granules, in which enzyme stability is prolonged without undue loss of solubility despite intimate contact of said enzyme granules and said oxidant bleach, comprising:an oxidant bleach, selected from the group consisting of alkali-metal peroborates, alkali metal percarbonates, hydrogen peroxide adducts, and mixtures thereof and hydrolase enzyme granules comprising a hydrolase enzyme core and a water soluble alkali metal silicate coating substantially encapsulating said core, said coating including at least one protective agent, said agent being selected from the group consisting of transition metals; reducing agents; and mixtures thereof. Sodium percarbonate is a preferred oxidant, while transition metals combined with a sodium silicate coating provide enhanced storage stability to the enzymes thereby coated.
摘要:
Compositions useful for making electrical conductor patterns on a nonconductive (dielectric) substrate, the compositions comprising certain proportions of finely divided copper, copper oxide and glass powders, dispersed in a vehicle. The compositions may be printed on a substrate and fired in a neutral atmosphere to produce conductor patterns adherent to the substrate.