Unlock instant, AI-driven research and patent intelligence for your innovation.

Cationic PEG for Treatment of Fabrics

Inactive Publication Date: 2009-08-13
JAIN SURENDRA
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0007]It is a first object of the invention to take advantage of the benefits from treating fabrics with PEG and a lower cost.

Problems solved by technology

The extra steps mean additional costs and the use of formaldehyde presents additional problems both where used in factory and to users, especially if the fabrics are steam ironed (formaldehyde released by chemical breakdown).
This is especially true for fabrics which are not expected to be used regularly over a period of years such as cloth sanitary products, pantyhose and surgical suppliers.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Cationic PEG for Treatment of Fabrics
  • Cationic PEG for Treatment of Fabrics
  • Cationic PEG for Treatment of Fabrics

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0011]Polyethylene glycols having a molecular weight of between about 850 to about 1600 are useful for this invention. A range of PEG products sold under the tradename CARBOWAX, are available from The Dow Chemical Co., Midland, Mich. The PEG, in a suitable solvent (needed for higher molecular weight grades), is reacted with the quaternary salt of a dialkyl amino ethyl acrylate in the presence of a persulfate or peroxide.

[0012]The resultant positively charged polyethylene glycol quat salt does not need the help of a cross-linking resin to attach to negatively charged surfaces of fabrics including knitted, non-woven and blended fabrics.

[0013]Using a water solution of cationized PEG of this invention, fabrics may be dipped in a solution, centrifuged or squeezed to remove excess water and tumble dried. Heat in excess of that used in commercial laundry equipment is not required as it would be when using cross-linking agents. In addition to dipping, the fabrics may be padded, sprayed or r...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Molecular weightaaaaaaaaaa
Login to View More

Abstract

A method for treatment of fabrics with polyethylene glycol without cross-linking involves cationizing the polyethylene glycol by conversion to a quaternary salt and applying the converted polyethylene glycol to a fabric in an aqueous solution by conventional means.

Description

FIELD OF THE INVENTION[0001]This invention relates to compositions for treatment of fabrics for absorption of moisture, improved durability and lower costs. Also included are methods for treatment of fabrics using these compositions.BACKGROUND OF THE INVENTION[0002]Polyethylene glycol (PEG) is commercially available in many grades and molecular weights. As an alcohol, it is water soluble. In higher molecular weights, it has viscosity properties of an oil. Its low toxicity allows it to have multiple medical uses. Some esters have been employed in the treatment of fabrics.[0003]Many fibers such as nylons and acrylates have surfaces which are negatively charged. Others, such as cotton, have free hydroxyl groups on the surface. This property can be used in the treatment of fibers by reacting with certain treatment chemicals.[0004]PEG has been applied to fabrics using 1,3-bis(hydroxymethyl)-4,5-dihydroxyimidazolidimone-2 (dihydroxydimethylol ethylene) urea, (DMDHEU)—to cross-link the PEG...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): D06M15/53
CPCD06M15/53D06M13/17
Inventor JAIN, SURENDRA
Owner JAIN SURENDRA