EP0849391A1 - Verfahren und Vorrichtung zum Mischen eines Waschmittels und eines Lösungsmittels - Google Patents

Verfahren und Vorrichtung zum Mischen eines Waschmittels und eines Lösungsmittels Download PDF

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Publication number
EP0849391A1
EP0849391A1 EP96203321A EP96203321A EP0849391A1 EP 0849391 A1 EP0849391 A1 EP 0849391A1 EP 96203321 A EP96203321 A EP 96203321A EP 96203321 A EP96203321 A EP 96203321A EP 0849391 A1 EP0849391 A1 EP 0849391A1
Authority
EP
European Patent Office
Prior art keywords
solubilizer
detergent
feed line
feed
mixing chamber
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.)
Withdrawn
Application number
EP96203321A
Other languages
English (en)
French (fr)
Inventor
Johannes Jacobus Blom
Kjell-Ivar Vasstveit
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.)
Unilever PLC
Unilever NV
Original Assignee
Unilever PLC
Unilever NV
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 Unilever PLC, Unilever NV filed Critical Unilever PLC
Priority to EP96203321A priority Critical patent/EP0849391A1/de
Priority to CA002221812A priority patent/CA2221812A1/en
Publication of EP0849391A1 publication Critical patent/EP0849391A1/de
Withdrawn legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/02—Devices for adding soap or other washing agents
    • D06F39/022—Devices for adding soap or other washing agents in a liquid state

Definitions

  • the present invention relates to a process and system for mixing a detergent and solubilizer together.
  • a problem here is that a residue of the detergent concentrate is often left behind in the feed lines and mixing chamber of the delivery system, which residue can harden and subsequently cause blockages.
  • the present invention provides a process for mixing a detergent and a solubilizer in a mixing system, comprising the steps of:
  • solubilizer feed cleans the system and removes detergent residue adhering thereto so that the latter is effectively cleaned and blockages are prevented.
  • the solubilizer is preferably ejected from the solubilizer feed line with a pressure greater than that in the feed line, in order to yield good mixing and cleaning conditions.
  • a second solubilizer feed is preferably fed directly into the mixing chamber.
  • This second solubilizer feed line is preferably continued after the first solubilizer feed line has been shut off, whereby a good functioning of the system is effected.
  • Compressed air can be fed into the mixing chamber feed, and is preferably continually fed into the mixing chamber after the second solubilizer feed line has been shut off. Accordingly, good mixing and pressure conditions for delivery of the detergent mixture are obtained.
  • the detergent mixture can subsequently be fed into a washing machine via a detergent exit line.
  • the detergent can be substantially non-aqueous and preferably has a non-aqueous phase and a substantially solid phase. Furthermore the detergent can comprise non-ionic surfactant materials, sequestering agents, and other detergent ingredients.
  • the particle size of the solid phase can be smaller than 50 mu, preferably less than 40 mu.
  • the detergent can have a Brookfield viscosity in the range of 1-1000 Pa.s., preferably in the range of 30-300 Pa.s. and most preferably in the range of 1-4 Pa.s.. Detergents with such qualities are effective paste-like detergents.
  • the system 1 (figure 1) according to the present invention has a detergent reservoir 2, connected to a detergent feed line 4 which leads into a mixing chamber 6.
  • a pump 8 is associated with the line 4 in order to pump detergent along line 4 from the detergent reservoir 2.
  • a valve 10 is also associated with feed line 4, to open and shut off the feed line 4.
  • a unbroken water feed line 12 leads through mixing chamber 6 opposite to the detergent feed line 4 and, as shown in figure 2, is continuous therewith.
  • a valve 14 is associated with water feed line 12 to open and shut off the water feed line.
  • a second water feed line 16 leads into the mixing chamber 6, and a compressed air line 18 is joined with this water feed line 16.
  • Valves 20 and 22 are respectively associated with the water feed line 16 and compressed air line 18, to open and shut off respectively the water feed line 16 and the air feed line 18.
  • a delivery line 24 delivers the detergent mixture from the mixing chamber 6 into a washing machine (not shown).
  • the water feed line 12 joins the detergent feed line 4 (see figure 2) at a junction 26.
  • a narrowing element 28, for example a nut, is associated with the water feed line 12 at the junction 26 in order to increase the water velocity through line 12 into the detergent feed line 4.
  • Openings 30 are arranged by the junction 26 in the detergent feed line 4 on opposite sides thereof.
  • Two channels 32 extend from the mixing chamber 6 to connect with the openings 30.
  • a narrowing element 36 is associated with the second water feed line 16 in order to prevent that the water pressure in channel 12 is insufficient to allow for a good mixing.
  • detergent is pumped via pump 8 from the reservoir 2 through the feed line 4 and open valve 10 to contact and mix with the water, at the junction 26. At this point valves 14 and 20 are open whilst valve 22 is shut.
  • the water is forced through the junction 26 with a higher velocity than before the narrowing element to increase the mixing effect at the junction 26, whereby the detergent mixture is forced out of the openings 30 and through the channels 32 into the mixing chamber 6.
  • the internal diameter of the water feed line 12 is 6 mm
  • the internal diameter of the detergent feed line 4 is 4 mm
  • the internal open diameter of the nut 28 is 2.5 mm.
  • Valve 10 is subsequently closed in order to shut off the detergent feed line 4.
  • Water is continually fed through line 12 and the junction 26 in order to be directed against the now closed valve 10, whereby said valve 10 is cleaned of detergent adhering thereto, whereafter this is fed via openings 30 and channels 32 into the mixing chamber 6.
  • Valve 14 is subsequently shut off.
  • Valve 20 is subsequently closed in order to shut off the water supply via line 20 into the mixing chamber 6.
  • Valve 22 is subsequently opened to allow compressed air to flow through line 16 into the mixing chamber 6 in order to force the detergent mixture therein through the delivery feed line 24 and to further aid in cleaning the mixing chamber 6.
  • the process and system according to the current invention are of particular use in mixing water and highly viscous detergent concentrates, for example in the form of pastes, together in order to yield a fluid detergent mixture.
  • Examples of a detergent formulation which can be mixed in the system according to the present invention are to be found in the European patent application number 0 158 464 and the European patents numbers 0 356 707 and 0 030 096.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detergent Compositions (AREA)
EP96203321A 1996-11-26 1996-11-26 Verfahren und Vorrichtung zum Mischen eines Waschmittels und eines Lösungsmittels Withdrawn EP0849391A1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP96203321A EP0849391A1 (de) 1996-11-26 1996-11-26 Verfahren und Vorrichtung zum Mischen eines Waschmittels und eines Lösungsmittels
CA002221812A CA2221812A1 (en) 1996-11-26 1997-11-19 Process for mixing a detergent and solubilizer and system therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP96203321A EP0849391A1 (de) 1996-11-26 1996-11-26 Verfahren und Vorrichtung zum Mischen eines Waschmittels und eines Lösungsmittels

Publications (1)

Publication Number Publication Date
EP0849391A1 true EP0849391A1 (de) 1998-06-24

Family

ID=8224623

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96203321A Withdrawn EP0849391A1 (de) 1996-11-26 1996-11-26 Verfahren und Vorrichtung zum Mischen eines Waschmittels und eines Lösungsmittels

Country Status (2)

Country Link
EP (1) EP0849391A1 (de)
CA (1) CA2221812A1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1321561A2 (de) * 2001-12-01 2003-06-25 Ecolab Inc. Einrichtung und Verfahren zum Dosieren pastöser Produkte
EP1939348A1 (de) 2006-12-27 2008-07-02 FagorBrandt SAS Verteilungsvorrichtung für ein flüssiges Produkt
EP2142697A2 (de) * 2007-03-31 2010-01-13 Lg Electronics Inc. Waschmaschine und betriebsverfahren dafür

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4090475A (en) * 1976-05-19 1978-05-23 S. E. Rykoff & Co. Self-cleaning fluid injection system
EP0030096A1 (de) 1979-12-04 1981-06-10 Imperial Chemical Industries Plc Reinigungsmittelzusammensetzung
EP0158464A1 (de) 1984-03-23 1985-10-16 The Clorox Company Eine bei niedriger Temperatur wirksame Detergenszusammensetzung und Ausführungssystem hierfür
GB2168726A (en) * 1984-12-21 1986-06-25 Unilever Plc Supplying water and liquid additive to a washing machine
EP0295525A2 (de) 1987-06-15 1988-12-21 Henkel Kommanditgesellschaft auf Aktien Maschinelles Waschverfahren
EP0356707A1 (de) 1988-08-01 1990-03-07 Henkel Kommanditgesellschaft auf Aktien Verfahren zum Dosieren pastenförmiger Waschmittel
EP0480490A1 (de) * 1990-09-18 1992-04-15 Unilever N.V. Verfahren und Vorrichtung zum Dosieren von Waschmitteln

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4090475A (en) * 1976-05-19 1978-05-23 S. E. Rykoff & Co. Self-cleaning fluid injection system
EP0030096A1 (de) 1979-12-04 1981-06-10 Imperial Chemical Industries Plc Reinigungsmittelzusammensetzung
EP0158464A1 (de) 1984-03-23 1985-10-16 The Clorox Company Eine bei niedriger Temperatur wirksame Detergenszusammensetzung und Ausführungssystem hierfür
GB2168726A (en) * 1984-12-21 1986-06-25 Unilever Plc Supplying water and liquid additive to a washing machine
EP0295525A2 (de) 1987-06-15 1988-12-21 Henkel Kommanditgesellschaft auf Aktien Maschinelles Waschverfahren
EP0356707A1 (de) 1988-08-01 1990-03-07 Henkel Kommanditgesellschaft auf Aktien Verfahren zum Dosieren pastenförmiger Waschmittel
EP0480490A1 (de) * 1990-09-18 1992-04-15 Unilever N.V. Verfahren und Vorrichtung zum Dosieren von Waschmitteln

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1321561A2 (de) * 2001-12-01 2003-06-25 Ecolab Inc. Einrichtung und Verfahren zum Dosieren pastöser Produkte
EP1321561A3 (de) * 2001-12-01 2003-12-17 Ecolab Inc. Einrichtung und Verfahren zum Dosieren pastöser Produkte
EP1939348A1 (de) 2006-12-27 2008-07-02 FagorBrandt SAS Verteilungsvorrichtung für ein flüssiges Produkt
EP2142697A2 (de) * 2007-03-31 2010-01-13 Lg Electronics Inc. Waschmaschine und betriebsverfahren dafür
EP2142697A4 (de) * 2007-03-31 2012-12-05 Lg Electronics Inc Waschmaschine und betriebsverfahren dafür
US8739578B2 (en) 2007-03-31 2014-06-03 Lg Electronics Inc. Washing machine with a liquid detergent mixer

Also Published As

Publication number Publication date
CA2221812A1 (en) 1998-05-26

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