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
  • C11D17/0039—Coated compositions or coated components in the compositions, (micro)capsules
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T428/00—Stock material or miscellaneous articles
  • Y10T428/31504—Composite [nonstructural laminate]
  • Y10T428/31855—Of addition polymer from unsaturated monomers
  • Y10T428/31909—Next to second addition polymer from unsaturated monomers
  • Y10T428/31913—Monoolefin polymer
  • Y10T428/3192—Next to vinyl or vinylidene chloride polymer
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T428/00—Stock material or miscellaneous articles
  • Y10T428/31504—Composite [nonstructural laminate]
  • Y10T428/31855—Of addition polymer from unsaturated monomers
  • Y10T428/31909—Next to second addition polymer from unsaturated monomers
  • Y10T428/31928—Ester, halide or nitrile of addition polymer

Definitions

• the invention relates to a method for enveloping solid forms of textile - care products or their components which tend to cause interactions.
• textile care products are understood as detergents and washing aids.
• the detergents are all in solid form, that is to say for example in powder or particle form, for example as granules, as flakes, flakes, pasta, as hollow spheres, as porous spheres which may be loaded with liquid detergent constituents, as shaped bodies, for example as tablets. Understand bars, balls, blocks, rigid or flexible strips or fabrics, textile detergents or their components, provided they are used in an aqueous alkaline medium. This also applies analogously to agents in this form for cleaning hard surfaces, such as, for example, ceramic cleaning agents, household cleaning agents, cleaning or disinfecting agents for sanitary facilities.
• the washing aids include, for example, laundry pre-treatment and post-treatment agents, bleaching agents, detergency boosters, fabric softeners, dirt-repellent agents, discoloration inhibitors or the components of these agents, provided that they cause interfering interactions with one another or with other components of these agents, with the packaging materials, with the surrounding atmosphere or can lead to the skin of the user or if it should be wrapped for other reasons, for example to cover up an unpleasant smell, such as it Fat amine or fish oil derivatives attached, or for the preservation of volatile desired fragrances.
• a casing therefore generally serves to avoid loss of effectiveness, to improve the shelf life and to handle it, for example by avoiding clumping, becoming damp or sticky or skin irritation.
• the surface of the detergents and washing aids is covered at least to such an extent that the interfering interactions are avoided.
• the wrapping material itself must not have any disadvantageous properties and must release the washing and washing aids quickly and completely under conditions of use, that is to say in this case in alkaline washing liquors, in the temperature range from about 10 to 100.degree.
• This object is achieved by a process for coating solid forms of textile care products or their constituents, which tend to cause interactions, by applying dissolved or dispersed organic, film-forming polymers which are soluble in an aqueous alkaline medium.
• the polymers are applied, for example, by spraying, brushing, dipping, contacting with rollers which are wetted with the solutions or dispersions of the polymers, by pouring, by rolling, by knife coating and, if necessary, subsequent drying. If necessary, the application can be repeated to improve the desired effect.
• Suitable polymers are applied either as a real solution or as a dispersion.
• the polymers are selected on the basis that the polymers are present in the alkaline wash liquor either as a real solution or as a finely divided suspension before the end of the washing process. Accordingly, "insoluble” means that the polymers are insoluble or not soluble in water or in acidic or neutral washing or cleaning liquors are dispersible.
• Suitable polymers are, for example, polymers containing carboxyl groups, in particular copolymers, especially those based on vinyl esters.
• a particularly suitable copolymer based on vinyl esters is a copolymer made of vinyl acetate containing copolymerizable carboxylic acids. The amount of the copolymerized carboxylic acids is in the range from 2 to 10 mole percent, based on the copolymer.
• copolymers are water-insoluble and are therefore advantageously applied in the form of an aqueous dispersion.
• Particularly suitable copolymer dispersions contain a protective colloid and optionally emulsifiers, the protective colloid content being in the range from 0.5 to 7 percent by weight, based on the copolymer.
• Particularly stable copolymer dispersions are obtained with water-soluble polyacrylamide copolymers as a protective colloid.
• Such copolymer dispersions are known, for example, from German Patent No. 14 44 073. According to the teaching of this patent, the copolymer dispersions are used to stiffen textiles.
• a non-prepublished German patent application No. P 34 22 055.0 (D 7093) describes a textile care agent with washing-strengthening properties.
• This textile care product contains a mixture of detergent components that are embedded in organic, flexible, film-forming water-soluble polymers.
• the textile care agents described therein contain additives to improve the solubility of the film-forming polymers in the wash liquor.
• the active substances themselves improve the removal of greasy, pigment-like and bleachable soiling by supporting the tenside, bleaching and builder components.
• the textile care products are, for example, in particular in the form of soluble, flexible sheets, in which the film-forming polymer is essentially polyvinyl alcohol is made.
• the present method can therefore be used with particular advantage to improve the shelf life and manageability of textile care products in the form of soluble, flexible sheet-like structures, preferably based on polyvinyl alcohol, with washing-strengthening active ingredients embedded therein.
• An effective improvement in storage stability with excellent handling safety is achieved if an amount of 25 to 500 g per m surface of the sheet of copolymer is applied to the sheet.
• copolymers in the form of their aqueous dispersions are also suitable as coating material, for example the commercial product Vinnapas (R) dispersion DZN 220. This is a carboxyl group-containing polyvinyl acetate dispersion.
• the copolymer dispersions mentioned are applied to the flexible fabrics by single or multiple application using a roller impregnated or wetted with the aqueous dispersion and drying the application at 40 to 90 ° C.
• the fabrics protected against the absorption of water from the ambient air are much more stable in storage than non-enveloped fabrics.
• Another advantage of the wrapper is that the wrapped fabrics feel more comfortable when touched by the user.
• the flat structures are assessed by trained persons with regard to the appearance of the stored flat structures and the feeling when the flat structures are removed from the packaging by hand. Storage took place at 23 ° C and 5 0% relative humidity, at 30 ° C and 80% relative humidity and at 40 ° C and 20% relative humidity.
• a 30% by weight aqueous dispersion of a copolymer of vinyl acetate and crotonic acid in a weight ratio of 18.8: 1 with 2.5% by weight of a water-soluble polyacrylamide was used as the protective colloid for the coating.
• the water-insoluble copolymer clearly dissolved in dilute sodium hydroxide solution at a pH of 9.

Landscapes

• 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)
• Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
• Detergent Compositions (AREA)
• Artificial Filaments (AREA)

Applications Claiming Priority (2)

Publications (2)

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Citations (5)

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• 1985
  • 1985-11-18 DE DE19853540833 patent/DE3540833A1/de not_active Withdrawn
• 1986
  • 1986-10-09 US US06/916,908 patent/US4752408A/en not_active Expired - Fee Related
  • 1986-11-10 EP EP86115553A patent/EP0223175A3/fr not_active Withdrawn
  • 1986-11-17 ES ES8603058A patent/ES2003514A6/es not_active Expired
  • 1986-11-18 JP JP61275070A patent/JPS62119300A/ja active Pending

Patent Citations (5)

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