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WO2017118630A1 - Lingette anti-décoloration pour le linge - Google Patents

Lingette anti-décoloration pour le linge Download PDF

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Publication number
WO2017118630A1
WO2017118630A1 PCT/EP2017/050080 EP2017050080W WO2017118630A1 WO 2017118630 A1 WO2017118630 A1 WO 2017118630A1 EP 2017050080 W EP2017050080 W EP 2017050080W WO 2017118630 A1 WO2017118630 A1 WO 2017118630A1
Authority
WO
WIPO (PCT)
Prior art keywords
sheet
dye
laundry
laundry sheet
sheets
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP2017/050080
Other languages
English (en)
Inventor
Patrick Mcnamee
Kerstin Schmitz
Erwan GUILMET
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Henkel AG and Co KGaA
Original Assignee
Henkel AG and Co KGaA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Henkel AG and Co KGaA filed Critical Henkel AG and Co KGaA
Publication of WO2017118630A1 publication Critical patent/WO2017118630A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • 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 application discloses dye catching laundry sheet with improved performance compared with other sheets.
  • Laundry aids are known in the prior art which are designed to capture the dyes in the wash liquor and thus preventing them to discolour the fabrics and textiles being present in the wash liquor.
  • US 6, 1 17,191 A discloses a method for the production of a dye scavenging substrate in which a cellulosic substrate is coated with an alkaline solution of an N-trisubstituted ammonium 2-hydroxy-3-halopropyl compound. Even though such substrate is able of catching dyes from a wash liquor, there is still a high amount of remaining dye left in the wash liquor if sheets known from the prior art are used for catching dyes. Thus, there is a need for better performing sheets which are able to catch higher amounts of colour from washing liquors.
  • the laundry sheets should be flexible so that they can be added to textiles to be washed without affecting material of the textiles; especially fashion textiles are often made of microfibers or other synthetic materials which might be damaged by stiff material for laundry aids.
  • high water permeability of the sheet should be obtained so that the coloured wash liquor can penetrate the sheet so that the dyes can effectively be removed from the liquor.
  • a two stage application process such as disclosed in US 2003/01 18730 A leads to a product with high stiffness and low permeability so that there will be a low acceptance of the consumer. It is thus an object of the present application to avoid or at least reduce the drawbacks of the prior art and to provide a laundry sheet which can bind larger amounts of colours in shorter time compared to known sheets.
  • the present application refers to a dye catching laundry sheet with a density of from 80 g/m 2 to 180 g/m 2 , preferably from 85 g/m 2 to 150 g/m 2 or to 130 g/m 2 , especially preferred from 90 g/m 2 to 120 g/m 2 .
  • the density is determined according to ISO 9073-1 .
  • the laundry sheet of the present application comprises a carrier and a coating. Preferably it consists of a carrier and a coating.
  • the density of the sheet corresponds to the density of the carrier.
  • respective sheets have an improved performance compared with commercially available sheets. They can bind larger amounts of dyes from washing liquor in shorter times compared with known dye catching laundry sheets. Thus, the amount of dye absorbed over a certain time from the washing liquor is increased by the sheets of the present invention. At the same time, they are stronger and more robust than known sheets and thus, suitable for all washing machine types including the more aggressive top loader with spindles. With the dye catching laundry sheet of the present application also the production is improved as there were reduced line breaks during production.
  • the sheets according to the present application are still flexible and water permeable, so that the consumer will accept them and also add them to delicate textile fabrics such as fabrics from microfibers or others.
  • the amount of dye to be caught by the sheets of the present application is preferably in the range of from 0.15 mg/cm 2 to 0.30 mg/cm 2 , preferably from 0.19 mg/cm 2 to 0.25 mg/cm 2 especially preferred from 0.20 mg/cm 2 to 0.23 mg/cm 2 .
  • This amount is the dye pick up (DPU) value.
  • DPU dye pick up
  • a solution of a Direct Red Dye is prepared (Direct Fast Red F3B (from Sun Colour Industries, China) is diluted in water to receive a dye solution with a concentration of 0.75 g dye/L water at 40 °C).
  • the coated colour catcher laundry sheets are placed in 750 g of the above mentioned solution under agitation. After 3 minutes samples were removed, dried at room temperature and the colour thereof measured with a Hach spectrophotometer at a wavelength of 540 nm.
  • the Dye pick-up (DPU) value is the difference between the concentration of dye measured before and after the immersion of the sample sheet in the solution.
  • the DPU is considered as the amount of dye removed from the solution and adsorbed by the sample sheet and is expressed in mg of dye per cm 2 of the sample sheet.
  • the DPU values are reported as the average value obtained by the testing of three separate sheets.
  • the laundry sheet of the present application comprises a coated carrier, which is water-insoluble.
  • the carrier can be a woven, knitted or non-woven material and is preferably provided in form of a sheet.
  • the carrier provides free hydroxyl-groups at its surface. It can also be of mixtures of different materials.
  • Preferably the carrier is a non-woven.
  • the carrier comprises preferably cellulosic and/or synthetic fibers. Also a blend of viscose and cotton might be used.
  • the fibers might be used alone, e.g. only cellulosic fibers, or as mixtures, such as mixtures of cellulosic and synthetic fibers or cotton and viscose and synthetic fibers.
  • the carrier is coated with a suitable coating. Said coating is bound to the free hydroxyl-groups of the carrier. The coating itself results in a cationic surface of the dye catching laundry sheet.
  • the coating comprises or consists of polyamines, especially the coating is GMAC (glycidyl trimethyl ammonium chloride).
  • GMAC glycol trimethyl ammonium chloride
  • the dye catching laundry sheet of the present application might comprise besides the dye scavenging material further auxiliary agents.
  • Suitable auxiliary agents can e.g., be one or more selected from perfumes, antistatic agents, optical brighteners, detergency boosters, UV-protectors, and anti-redeposit agents. Perfumes are especially preferred as they may increase the consumers acceptance.
  • the laundry sheet of the present invention preferably has a carrier with an absorption capacity of 2.5 g to 7 g per 277.5 cm 2 within an absorption time of 1.5 s to 5 s (seconds), preferably it has an absorption capacity of 2.5 g to 6 g per 277.5 cm 2 within an absorption time of 2 s to 4.5 s.
  • the values refer to a sheet size of 277.5 cm 2 , corresponding to a sheet with a size of 250 mm to 1 1 1 mm.
  • the absorption capacity is a process parameter relevant for the production of the sheet.
  • an aqueous solution (7.1 %) of a standard cationic compound, GMAC, is prepared and a sheet is put inside said solution.
  • the amount of said aqueous solution absorbed by the sheet within a certain time range at room temperature is determined.
  • the absorption capacity defines, that a sheet according to the present invention with a sheet size of 277.5 cm 2 can absorb an amount of 2.5 to 7 grams of a standard cationic compound solution within a time range of 1.5 to 5 seconds and preferably 2.5 g to 6 g solution within 2 s to 4.5 s.
  • the laundry sheet of the present application is strong and robust to be suitable for all washing machine types. Strength and robustness might be defined by the tensile strength. Tensile strength refers to the resilience of the sheet against ripping. For direction of tensile strength it has to be distinguished between machine direction (MD) and cross direction (CD). When the laundry sheet is produced, the lengthwise direction (direction of production) is the machine direction. The direction rectangular thereto is the cross direction. Relevant is of course also the tensile strength in respect of moisture. Thus, the sheets should be robust and stable if wet - which means a sheet that is immersed for 10 seconds in water - as well as if dry - which means a sheet as can be obtained by a supplier.
  • wet - means a sheet that is immersed for 10 seconds in water - as well as if dry - which means a sheet as can be obtained by a supplier.
  • the laundry sheet of the present application has preferably a tensile strength of from 500 N/m to 2100 N/m in machine direction and/or of from 450 N/m to 1300 N/m in cross direction if wet.
  • the laundry sheet preferably has a tensile strength of from 1600 N/m to 2100 N/m, more preferably from 1720 N/m to 1960 N/m in machine direction and/or of from 800 N/m to 1300 N/m, more preferably from 1000 N/m to 1 150 N/m in cross direction if wet.
  • the laundry sheet preferably has a tensile strength of from 500 N/m to 950 N/m, more preferably from 600 N/m to 850 N/m in machine direction, and/or of 450 N/m to 900 N/m, more preferably from 550 N/m to 700 N/m in cross direction if wet.
  • the inventive laundry sheet has a tensile strength of from 2000 N/m to 4000 N/m in machine direction and/or of from 900 N/m to 3500 N/m in cross direction.
  • the laundry sheet preferably has a tensile strength of from 2000 N/m to 3000 N/m, more preferably from 2300 N/m to 2700 N/m in machine direction and/or of from 900 N/m to 2400 N/m, more preferably from 1350 N/m to 1850 N/m in cross direction if dry.
  • the laundry sheet preferably has a tensile strength of from 2950 N/m to 4000 N/m, more preferably from 3100 N/m to 3500 N/m in machine direction, and/or from 2000 N/m to 3500 N/m, more preferably from 2500 N/m to 3000 N/m in cross direction if dry.
  • the thickness of the sheet is preferably from 0.62 mm to 1.5 mm, preferably from 1 .0 mm to 1.2 mm.
  • the thickness is especially relevant for the question of permeability. Thicker sheets might not be permeable to washing liquor. Thinner sheets might not be robust enough; especially in aggressive top loaders with spindles they might be destroyed. This would not lead to a reduced efficacy of the dye catching laundry sheet but in reduced approval by the consumer.
  • dye catching laundry sheets of the present invention might be used not only once but several times as long as there is still some colour binding capacity of the sheet left.
  • Vanish Gold (75 gsm): 100 mm*150 mm (150 cm 2 ) (prior art)
  • Intense Bubble (50 gsm): 122.5 mm*130 mm (159.25 cm 2 ) (prior art)
  • Intense Bubble (90 gsm): 122.5 mm*130 mm (159.25 cm 2 ) (according to the present invention)
  • GSM is the density of the sheet in g/m 2 (gram per squaremeter).
  • a solution of a Direct Red Dye was prepared (Direct Fast Red F3B (from Sun Colour Industries, China) was diluted in water to receive a dye solution with a concentration of 0.75 g dye/L water at 40 °C).
  • the coated colour catcher laundry sheets were placed in 750 g of the above mentioned solution under agitation. After 1 , 2, and 3 minutes respectively, samples were removed, dried at room temperature and the colour thereof measured with a Hach spectrophotometer at a wavelength of 540 nm.
  • the Dye pick-up (DPU) value is the difference between the concentration of dye measured before and after the immersion of the sample sheet in the solution.
  • the DPU is considered as the amount of dye removed from the solution and adsorbed by the sample sheet and is expressed in mg of dye per cm 2 of the sample sheet.
  • the DPU values are reported as the average value obtained by the testing of three separate sheets.

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)
  • Paper (AREA)

Abstract

La présente invention concerne une lingette anti-décoloration pour le linge offrant de meilleures performances par rapport à d'autres lingettes.
PCT/EP2017/050080 2016-01-08 2017-01-03 Lingette anti-décoloration pour le linge Ceased WO2017118630A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016200169 2016-01-08
DE102016200169.8 2016-01-08

Publications (1)

Publication Number Publication Date
WO2017118630A1 true WO2017118630A1 (fr) 2017-07-13

Family

ID=57890772

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2017/050080 Ceased WO2017118630A1 (fr) 2016-01-08 2017-01-03 Lingette anti-décoloration pour le linge

Country Status (1)

Country Link
WO (1) WO2017118630A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020119721A1 (en) * 2000-10-13 2002-08-29 The Procter & Gamble Company Multi-layer dye-scavenging article
WO2007088149A1 (fr) * 2006-02-01 2007-08-09 Lamberti Spa Tissu non tisse capteur de couleurs et son procede de fabrication
EP2835419A1 (fr) * 2013-08-09 2015-02-11 Ahlstrom Corporation Assistance de blanchisserie et utilisateur correspondant

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020119721A1 (en) * 2000-10-13 2002-08-29 The Procter & Gamble Company Multi-layer dye-scavenging article
WO2007088149A1 (fr) * 2006-02-01 2007-08-09 Lamberti Spa Tissu non tisse capteur de couleurs et son procede de fabrication
EP2835419A1 (fr) * 2013-08-09 2015-02-11 Ahlstrom Corporation Assistance de blanchisserie et utilisateur correspondant

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