摘要:
There is provided a web which has been spun from a mixture of thermoplastic polymer and a softening additive in an amount up to about 3 weight percent, and which has been mechanically treated to increase softness. The web has a final cup crush value which is less than 50 percent of the starting cup crush value and the drop in cup crush value is greater than the sum of the treatments individually. The web may be a single layer or may be a laminate of spunbond and other materials such as meltblown and coform fabrics.
摘要:
Anti-fouling treatments are applied to polymer substrates for preventing bacterial adhesion. The polymer substrate may comprise a medical device, such as a catheter. The treatment generally comprises a polymer layer graft polymerized to the surface of the polymer substrate. An anti-biofilm agent is contained in the polymer layer or applied to the surface. A polymer over-layer is then applied that encapsulates the anti-biofilm agent. The anti-biofilm agent prevents bacterial adhesion through the polymer over-layer.
摘要:
A method is provided for making a high repellency material. In one embodiment the method includes the steps of providing a polymeric material having an external surface including particle-like micron-scale topography, etching the external surface with a high energy treatment; and depositing a fluorochemical onto the etched external surface by a plasma fluorination process. The external surface may define a plurality of micro-tears proximate the micron-scale topography.
摘要:
The present invention is generally directed to an elastic woven cuff having an alcohol repellency rating of 10, the cuff having fluoro-chemical monomer deposited onto the surface of the cuff
摘要:
An oxidizing anti-microbial treatment and products containing such treatment are described. The treatment involves, in part, preparing a substrate to accept an attachment of charged moieties, and a number of stabilized peroxide compounds on at least part of a surface of said substrate. When microbes, such as bacteria, having a net charge opposite to that of the charged moieties come in close proximity to the treated substrate surface, peroxide molecules from the substrate are activated and released to kill the microbes.
摘要:
A soft, flexible, low-density, open-cell, thermoplastic, absorbent foam formed from a foam polymer formula including a balanced amount of a plasticizing agent and a surfactant in combination with a base resin. Thermoplastic elastomers can be added to the foam polymer formula to improve softness, flexibility, elasticity, and resiliency of the resulting foam. The surfactant may be either a single surfactant or a multi-surfactant system. The foam possesses a number of qualities, such as softness and strength, which render the foam particularly suitable for use in a variety of personal care products, medical products, and the like.
摘要:
A material substrate having at least part of a surface treated with an antimicrobial composition is described. The antimicrobial composition exhibits at least a 3 log10 CFU reduction within a period of about 30 minutes after contact with various species of a broad spectrum of microorganisms. The substrate can be a nonwoven material that has good fluid barrier properties, which can be used in protective garments and sheets. Methods for manufacturing and imparting the antimicrobial treatment to the substrate are also provided.
摘要:
The present invention provides a method of treating a porous substrate that includes contacting a surfactant or a mixture of surfactants to a surface of the porous substrate such that opposite surface of the porous substrate contacts a lesser amount of the surfactant or mixture of surfactants than the first surface contacts. The present invention also provides a porous, treated substrate that includes a first surface that includes a first amount of a surfactant or mixture of surfactants and a second surface that includes a lesser amount of the surfactant or the mixture of surfactants.
摘要:
Multipurpose cleaning articles are provided comprising a porous cleaning sheet containing an aqueous cleaning composition comprising (a) water as the major component; (b) 5% to 45% by weight water-immiscible solvent; (c) less than about 1.8% by weight emulsifier; and wherein the aqueous cleaning composition has a vertical wicking rate of about 1 cm/minute or more. The porous cleaning sheet can comprise any one of numerous materials, including hydrophobic materials, such as nonwoven webs, textile fabrics, foams and so forth. The cleaning articles are capable of removing water insoluble materials from various surfaces and including cleaning the skin and hands as well as hard surfaces.
摘要:
A cyclodextrin-modified thermoplastic porous layer material is prepared by coating the surface of a fibrous nonwoven web, open-celled foam, porous film or the like with a chemical composition including a cyclodextrin compound, and then irradiating the coated fabric to induce a chemical reaction between the cyclodextrin compound and the underlying layer material. The resulting cyclodextrin-modified layer material has durable hydrophilic properties useful in topsheets for absorbent articles, and entrapment capabilities useful in water filters, blood filters, controlled delivery articles and protective garments.