Classifications

• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
  • C11D17/04—Detergent materials or soaps characterised by their shape or physical properties combined with or containing other objects
  • C11D17/041—Compositions releasably affixed on a substrate or incorporated into a dispensing means
  • C11D17/046—Insoluble free body dispenser
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
  • C11D17/04—Detergent materials or soaps characterised by their shape or physical properties combined with or containing other objects
  • C11D17/049—Cleaning or scouring pads; Wipes
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
  • C11D3/0005—Other compounding ingredients characterised by their effect
  • C11D3/0021—Dye-stain or dye-transfer inhibiting compositions

Definitions

• the present invention relates to a system for removing undesirable random free flowing dyes from baths containing other materials to which association of such random dyes is undesirable. More particularly, this invention relates to a dye scavenger cloth for use in a conventional whashing machine for laundering clothes to eliminate random dyes from the washing and rinsing waters, thus eliminating undesirable discoloration of some clothes by fading of dyes from others.
• Rupin Michel, "Dyeing with Direct and Fiber Reactive Dyes," Textile Chemists and Colorist, Vol. 8, N° 9, September, 1976, pages 139/54 - 143/58, discloses the amination of cellulose as a method to facilitate dyeing of cellulose by direct and fiber reactive dyes.
• Rupin reports that quaternary ammonium compounds such as glycidyltrimethylammonium chloride (sold under the trademark Glytac by Societe Protex, Levallois, France) can be applied to fabric either prior to dyeing or simultaneously with reaction, for example by adding Glytac to the dye bath.
• a dye scavenger member comprising a substrate, for example a textile substrate, impregnated with a quaternary ammonium compound such as glycidyltrimethylammonium chloride is used in a bath containing dyed materials, wherein the dye scavenger member serves to adsorb any undesirable dyes which become disassociated from the originally dyed or colored materials, thereby preventing undesirable discoloration of other materials in the bath by the disassocia- ,ted random dyes.
• a scavenger member comprising a substrate, for example a textile substrate, impregnated with a quaternary ammonium compound such as glycidyltrimethylammonium chloride is used in a bath containing dyed materials, wherein the dye scavenger member serves to adsorb any undesirable dyes which become disassociated from the originally dyed or colored materials, thereby preventing undesirable discoloration of other materials in the bath by the disassocia- ,ted random dyes.
• the present invention is directed to a different aspect of the problem, namely effectively eliminating dyestuffs or colorants which have bled from or faded from the original material upon which they entered the bath or wash water environment. More specifically, the present invention is directed to a dye scavenging member or cloth, and the methods by which such a dye scavenging cloth is used.
• the substrate of the dye scavenging cloth of the present invention may take any desirable form, and may comprise any desirable material.
• that substrate will typically be a textile material, preferably cellulosic textile material.
• That textile material may take virtually any form, such as a woven, non-woven, or knitted fabrik, a braided rope or ball, or any other desirable configuration. Even paper-like substrates may be used.
• the purpose of the substrate is to provide a carrier for a dye scavenging material, and to provide a sufficient area over which that dye scavenging material is accessible to the liquid in the bath or wash water in which the dye scavenging member or cloth is to be used.
• One particularly suitable substrate is a towel-like piece of terry-loop pile cotton fabric.
• Another particularly preferred substrate is a non-woven fabric "Novonette” available from the Kendall Co., Walpole, Massachusetts. It will be appreciated that any substrate which may be successfully treated with a dye scavenger material, has sufficient wet strength, and sufficient resistance to abrasion with other materials in a bath such as laundry wash or rinse waters , may be satisfactorily used as the substrate for the dye scavenger member of the present invention.
• the dye scavenging material may comprise a compound of the N-trisubstituted ammonium 2-hydroxy 3-halopropyl type of the general formula: or salts of epoxy propyl ammonium (or glycidyl ammonium) components having the general formula: wherein X is a hologen radical, Y is an anionic group such as chloride, bromide, sulfate or sulphonate, and the R's are methyl, ethyl, butyl or benzyl groups or alcohols thereof.
• the solution is made "slightly alkaline" which herein means having the alkalinity provided by sodium hydroxyde present in a concentration of about 0.5 - 40 grams per liter, or the basic equivalent thereof.
• a preferred alkalinity is provided by using sodium hydroxide in a concentration of about 10 grams per liter.
• One or more surface active agents may be added to enhance wetting of the substrate material by the dye scavenging material solution. Impregnation of substrate materials in such aqueous solutions of dye scavenging material may be conducted at any suitable temperature, but lower temperatures are preferred and impregnation is typically conducted at about room temperature.
• a dye scavenger solution is prepared by mixing about 40 grams of Glytac (glycidyltrimethylammonium chloride commercially available from Societe Protex, Levallois, France) with about 10 grams of sodium hydroxyde, about 10 milliliters of Protowet TJ (a surface active agent available from the Proctor Chemical Company, Salisbury, North Carolina), and about one liter of water. After thorough mixing of that solution, wash-cloth size pieces of white, towel-like loop pile terry cotton fabric is immersed in the solution, removed from the solution and excess solution extracted by passing the cloths through rubbel wringer rolls. The cloths are then stored wet for about 12 hours. The cloths are then washed by conventional means to remove any excess solution, and then dried.
• Glytac glycoltrimethylammonium chloride commercially available from Societe Protex, Levallois, France
• Protowet TJ a surface active agent available from the Proctor Chemical Company, Salisbury, North Carolina
• the cloths made according to Example I are used by placing one of them in a load of laundry in conventional laundry equipment such as an automatic home laundry machine.
• Common laundry detergents may be used as usual, and bleaches and other laundry additives may also be used.
• bleaches and other laundry additives may also be used.
• no "fading" has taken place from darker colored items onto lighter items, and light of white items retain their original brightness.
• Any dyes or colorants which do dissociate from their original item are scavenged by the dye scavenger member or cloth of the present invention which appears somewhat discolored when removed at the end of the normal wash cycle.
• the scavenger cloth used in example II above is repeatedly reused as described in example II.Such cloths have been successive- fully reused as many as about 5 to about 50 times before any visible undesirable discoloration of other items in the laundry load took place depending upon the particular laundry loads.
• the inventive scavenger cloth may be reused in its wet condition.
• a dye scavenger solution is prepared as in example I, and pieces of non-wowen cellulosic fabric, available under the name "Novonette” from the Kendall Company, Walpole, Massachusetts, are treated with the solution as described in example I.

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• Chemical & Material Sciences (AREA)
• Life Sciences & Earth Sciences (AREA)
• Engineering & Computer Science (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Oil, Petroleum & Natural Gas (AREA)
• Wood Science & Technology (AREA)
• Organic Chemistry (AREA)
• Coloring (AREA)

Applications Claiming Priority (2)

Publications (3)

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Cited By (11)

Families Citing this family (1)

Citations (4)

• 1980
  • 1980-10-31 EP EP80401557A patent/EP0033815B1/de not_active Expired
  • 1980-10-31 DE DE8080401557T patent/DE3071468D1/de not_active Expired
  • 1980-12-08 JP JP17215280A patent/JPS56112565A/ja active Pending

Patent Citations (4)

Non-Patent Citations (1)

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