EP0345838A2 - Sachet pour le traitement de tissus à dosage unitaire - Google Patents

Sachet pour le traitement de tissus à dosage unitaire Download PDF

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Publication number
EP0345838A2
EP0345838A2 EP89201187A EP89201187A EP0345838A2 EP 0345838 A2 EP0345838 A2 EP 0345838A2 EP 89201187 A EP89201187 A EP 89201187A EP 89201187 A EP89201187 A EP 89201187A EP 0345838 A2 EP0345838 A2 EP 0345838A2
Authority
EP
European Patent Office
Prior art keywords
sachet
semi
opening side
accordance
closing means
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
EP89201187A
Other languages
German (de)
English (en)
Other versions
EP0345838A3 (fr
Inventor
Brian Edward Talkes
Colin James Lowery
Haydn Guy William Dickenson
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.)
Procter and Gamble Co
Original Assignee
Procter and Gamble Co
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 Procter and Gamble Co filed Critical Procter and Gamble Co
Publication of EP0345838A2 publication Critical patent/EP0345838A2/fr
Publication of EP0345838A3 publication Critical patent/EP0345838A3/fr
Ceased 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
    • D06F39/024—Devices for adding soap or other washing agents mounted on the agitator or the rotating drum; Free body dispensers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B65D33/007—Details of, or accessories for, sacks or bags for facilitating the separation of the two walls, e.g. walls of inequal height, tabs; for maintaining the mouth of the sack or bag open
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B65D33/16—End- or aperture-closing arrangements or devices
    • B65D33/18—End- or aperture-closing arrangements or devices using adhesive applied to integral parts, e.g. to flaps
    • 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
    • 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

Definitions

  • the invention relates to single-dose articles which are suitable for treating fabrics in a washing machine, and which contain a fabric-treatment composition such as a detergent composition.
  • these devices improve dosage control and considerably reduce loss of detergent composition caused by retention in the dispensers of washing machines.
  • the present invention provides single-dose fabric-treatment products, in the form of sachets, which do not require several opening seals and which provide a gradual dispersing of the fabric-treatment composition they contain.
  • the fabric-treatment products of the invention are sachets made of flexible sheet material, having at least one opening side fitted with closing means which open when the sachet is in use in a washing machine, characterised in, that along both edges of said opening side,or along at least one of the edges in another embodiment, are permanently attached semi-rigid strips which are constrained in a straight position by the closing means, and which, upon opening of the closing means, gain a curved shape so as to form an open mouth for the dispensing of the fabric-treatment composition.
  • the rigidity of said semi-rigid strips must be such that the mouth formed upon opening of the closing means, is kept open throughout the wash cycle; thus allowing a complete, but gradual dispersing of the fabric-treatment material.
  • Another important advantage of the present open-mouth configuration is that the spent sachets run virtually no risk of being lost during the washing cycle, in the space between inner rotating drum and outer stationery drum of the washing machine; the passage of a sachet or sheet, in said space can disrupt the normal functioning of the machine; the problem has already been disclosed and solutions proposed, in EP-A-249 439.
  • the devices of the present invention present the advantage of efficiently combining the functions of ease of dispensing and sachet-loss preventing.
  • said sachets contain at least one opening side, i.e. a side which, while being closed by closing means before use of the sachet, opens up when in use in a washing machine, and allows dispensing of the fabric-treatment composition contained in it.
  • At least one of said opening sides is fitted with semi-rigid strips which are constrained in a straight position by the closing means, and which upon opening of the closing means, gain a curved shape.
  • This can advantageously be achieved in two distinct ways : In a preferred embodiment, both edges of the opening side are fitted with semi-rigid strips, the semi-rigid strips are curved in their normal, relaxed state, and regain their original curved shape (i.e. they have a built-in "curved memory" upon opening of the closing means, so as to form an open mouth for the sachet.
  • only one edge of the opening side can be fitted with semi-rigid strips, even if, preferably both edges are equipped with said strips;
  • the semi-rigid strips do not need to have a "curved memory” imparted to them, but a water-activated shrinkable fibre or thread,or elastic material, is positioned longitudinally accross the whole length of the opening side, in parallel with the semi-rigid strips, or strips, and is permanently fixed to the sachet at its extemities, so that upon opening of the closing means, the shrinkable fibre or thread,or elastic material shrinks, causing the semi-rigid strip or strips to gain a curved shape.
  • the shrinkable fibre or thread can conveniently be positioned/attached along the edge which does not carry any semi-rigid strip.
  • the action of water in the washing machine causes the thread or fibre to shrink. If the material is elastic, it is kept under stress by the closing means, and shrinks back to its relaxed dimension upon opening of the closing means.
  • “Semi-rigid” in the present context means that the strips, while not being completely rigid, have a sufficient rigidity to remain in the same curved state once the closing means are open; it is important indeed, that the open mouth formed by said rigid strips remains open throughout the washing cycle, to ensure optimum dispensing of the fabric-treatment product. If the rigidity of the strips is not sufficient, mechanical action in the washing machine could result in the strips being closed together, thus preventing further dispensing of the fabric-treatment product.
  • the strips can be produced from plastic, metal, laminates, water-resistant cardboard, wood, or any combination thereof.
  • At least one semi-rigid strip permanently attached to each edge of at least one opening side, for the preferred execution herein or at least one edge of said opening side, for the alternative execution herein.
  • only one strip is present on one edge of said opening side; in the preferred execution herein, a single pair of strips are thus positioned in such a way that they coincide with each other when said opening side is closed.
  • the semi-rigid strips can be of the same length as the opening side, and in this case, the strips are attached to each other at their extemities. In one execution, this is simply a bond between the very extremities of the strips.
  • the strips are glued/bonded together at the portions nearing their extremities.
  • the strips will need to be partially cut at the end of said portions, to create hinges, so as to ensure that the strips regain their original curved form, upon opening of the closing means.
  • the semi-rigid strips can also be of a length shorter than the length of the opening side; in this case, the semi-rigid strips are preferably not bonded to each other at their extremities, but it must be ensured that they are sufficiently firm at their ends, in order not to rotate about their long axis.
  • the semi-rigid strips can either be attached to the inside or to the outside of the edges of the opening side, preferably by heat-sealing, or possibly by other means such as water-insoluble hot melt glue.
  • only one of the sides of the sachet be an opening side fitted with semi-rigid strips according to the invention.
  • Said opening side is equipped with closing means which impose a constraint upon the semi-rigid strips, before use in a washing machine;
  • Said closing means contain preferably water-soluble seals, although mechanically-weak seals or combinations of water-soluble and mechanically-weak seals can be used.
  • the closing means is represented by an integral fold-over flap which can be sealed onto the sachet, preferably by means of a water-soluble adhesive.
  • Suitable water-soluble adhesives can, for example, be based on polysaccharides such as starch or dextrin, synthetic polymers such as polyvinyl alcohol, polyethylene oxide or alkali metal silicates. Small amounts of plasticisers, for example ethylene glycol, can be added to the water-soluble adhesives, if desired.
  • the present execution presents a processing advantage, since glue can be easily applied onto said flap, in line, during manufacture of the sachet, without the need for a separate coating step of the sachet.
  • the closing means is represented by a water-soluble adhesive applied directly to the edges of the opening side.
  • more than one opening side is equipped with the semi-rigid strips and closing means described hereinabove.
  • the flexible sheet materials which are used to form the sachets herein can be made of paper, of woven, knitted or non-woven fabrics, or of plastic film material.
  • the materials should be water-insoluble and can be either water-permeable or water-impermeable.
  • the materials used to form the sachets are required to have a high wet strength, so as not to disintegrate during the washing process.
  • the preferred sheet material for forming the bags is paper or thin non-woven fabric made out of synthetic fibres; synthetic fibres include fibres made out the following materials : polyethylene, polypropylene, polyester, polyamide, polyacrylate, cellulose acetate, polyacryloritrile, and any mixture thereof.
  • cellulosic materials can be used to make the non-woven fabrics herein, alone or in admixture with either synthetic or natural fibres. If natural fibres are used, it is desirable to include a proportion of long fibers such as manilla hemp, in order to improve the strength of the sheet material, and polymeric coating is also desirable for increasing wet strength.
  • thermoplastic materials including perforated materials such materials may advantageously be selected from polyolefins such as polyethylene, polypropylene, polystyrene; polyesters especially polyethylene terephthalate; vinyl polymers such as insoluble polyvinyl acetate and polyvinyl acrylate, polyvinyl chloride, and polyvinylidene chloride; polyamides and polyacrylonitrile; and other thermoplastic sheet materials having similar physical properties.
  • polyolefins such as polyethylene, polypropylene, polystyrene
  • vinyl polymers such as insoluble polyvinyl acetate and polyvinyl acrylate, polyvinyl chloride, and polyvinylidene chloride
  • polyamides and polyacrylonitrile and other thermoplastic sheet materials having similar physical properties.
  • the fabric-treatment compositions which are contained in the sachets of the present invention are in particulate form, and are usually detergent compositions, i.e., a composition containing at least a surfactant and a builder is suitable for use in the present context; as an alternative, the sachets of the present invention can contain any particulate ingredient which is active during the wash and rinse cycles : bleaches, bleach activators, fabric softeners, perfumes, whitening or brightening agents, stain removal agents, enzymes and the like.
  • the present sachets contain at least two different compartments; only one of the compartments may have an opening side with semi-rigid strips according to the invention, while other compartments have more conventional opening devices; another possible execution consists in multi-compartment sachet, most conveniently a two-compartment sachet, wherein all compartments have an opening side with semi-rigid strips according to the invention.
  • the fabric is then folded with the strips on the inside, and sides are heat-sealed. Dimensions of the sachet are 130mm x 99mm, and the created flap has a width of 17 mm.
  • Water-soluble glue is then applied onto the flap, and the sachet is filled with a particulate detergent composition, before being closed by folding-over the flap onto the sachet, the strips being brought in full contact with each other, then by sealing the flap onto the wall of the sachet, by means of a water-soluble adhesive (high molecular weight polyethylene oxide).
  • a water-soluble adhesive high molecular weight polyethylene oxide
  • the opened sachets contain no, or a small amount, of residual detergent composition, and no loss of any spent sachet is observed within the washing machine.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Textile Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Packages (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Bag Frames (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Detergent Compositions (AREA)
EP19890201187 1988-05-18 1989-05-11 Sachet pour le traitement de tissus à dosage unitaire Ceased EP0345838A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8811794 1988-05-18
GB888811794A GB8811794D0 (en) 1988-05-18 1988-05-18 Single-dose fabric-treatment articles

Publications (2)

Publication Number Publication Date
EP0345838A2 true EP0345838A2 (fr) 1989-12-13
EP0345838A3 EP0345838A3 (fr) 1990-09-19

Family

ID=10637118

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890201187 Ceased EP0345838A3 (fr) 1988-05-18 1989-05-11 Sachet pour le traitement de tissus à dosage unitaire

Country Status (8)

Country Link
EP (1) EP0345838A3 (fr)
JP (1) JPH0249697A (fr)
AR (1) AR244167A1 (fr)
BR (1) BR8902327A (fr)
CA (1) CA1332587C (fr)
GB (1) GB8811794D0 (fr)
IE (1) IE891611L (fr)
MX (1) MX172133B (fr)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2662972A1 (fr) * 1990-06-07 1991-12-13 Bertrand Freres Exploit Ets Procede pour la realisation de sachets.
WO1993001097A1 (fr) * 1991-07-12 1993-01-21 The Procter & Gamble Company Sac souple s'ouvrant de lui-meme et refermable
WO1993019996A1 (fr) * 1992-03-27 1993-10-14 Gilbert Capy Emballage fabrique a partir d'une feuille mince plissee formant un sachet pour produits en vrac
FR2692867A1 (fr) * 1992-06-26 1993-12-31 Capy Gilbert Perfectionnement d'un sachet obtenu à partir d'un film plissé dont les plis sont fixés à leurs extrémités.
GB2339579A (en) * 1999-07-19 2000-02-02 Procter & Gamble A dispensing device for a detergent tablet
WO2001014217A1 (fr) * 1999-08-20 2001-03-01 The Procter & Gamble Company Sac de rangement souple avec indicateur de fermeture
EP1169984A1 (fr) * 2000-07-07 2002-01-09 SALT & SON LTD. Sac d'ostomie avec fermeture intégrale
WO2003035498A1 (fr) * 2001-10-23 2003-05-01 S.C. Johnson Home Storage, Inc. Sac de conservation a ouverture a ecartement
WO2004045472A1 (fr) * 2002-11-19 2004-06-03 Gamez Cano, Matilde Sac perfectionne
WO2006010482A1 (fr) * 2004-07-27 2006-02-02 Unilever Plc Composition de detergent particulaire et emballage associe
WO2009004294A1 (fr) * 2007-07-05 2009-01-08 Reckitt Benckiser N.V. Produit pour le nettoyage du linge
EP2420453A1 (fr) * 2010-08-20 2012-02-22 Arwed Löseke Papierverarbeitung und Druckerei GmbH Procédé de fabrication d'un sac de sol en bloc
IT201600110152A1 (it) * 2016-11-02 2018-05-02 Eudorex S R L Supporto multiuso a rilascio graduale di liquido detergente.
CN113499640A (zh) * 2021-07-09 2021-10-15 刘忠伟 预切扩张式过滤片生产装置
WO2023068918A1 (fr) * 2021-10-18 2023-04-27 Todo En Promocionales Um, S.A. De C.V. Sachet pour emballage à liaisons latérales et couture exposée

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4815308B2 (ja) * 2006-08-22 2011-11-16 本田技研工業株式会社 自動二輪車の変速機構

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US452463A (en) * 1891-05-19 Charles s
FR2391275A1 (fr) * 1977-05-18 1978-12-15 Unilever Nv Produits detergents comprenant une composition detergente particulaire contenue dans un sachet s'ouvrant au contact de l'eau

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US452463A (en) * 1891-05-19 Charles s
FR2391275A1 (fr) * 1977-05-18 1978-12-15 Unilever Nv Produits detergents comprenant une composition detergente particulaire contenue dans un sachet s'ouvrant au contact de l'eau

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2662972A1 (fr) * 1990-06-07 1991-12-13 Bertrand Freres Exploit Ets Procede pour la realisation de sachets.
WO1993001097A1 (fr) * 1991-07-12 1993-01-21 The Procter & Gamble Company Sac souple s'ouvrant de lui-meme et refermable
WO1993019996A1 (fr) * 1992-03-27 1993-10-14 Gilbert Capy Emballage fabrique a partir d'une feuille mince plissee formant un sachet pour produits en vrac
FR2692867A1 (fr) * 1992-06-26 1993-12-31 Capy Gilbert Perfectionnement d'un sachet obtenu à partir d'un film plissé dont les plis sont fixés à leurs extrémités.
GB2339579A (en) * 1999-07-19 2000-02-02 Procter & Gamble A dispensing device for a detergent tablet
WO2001014217A1 (fr) * 1999-08-20 2001-03-01 The Procter & Gamble Company Sac de rangement souple avec indicateur de fermeture
US6386762B1 (en) 1999-08-20 2002-05-14 The Procter & Gamble Company Flexible storage bag with structural alteration of bag opening to provide closure indication
EP1169984A1 (fr) * 2000-07-07 2002-01-09 SALT & SON LTD. Sac d'ostomie avec fermeture intégrale
WO2003035498A1 (fr) * 2001-10-23 2003-05-01 S.C. Johnson Home Storage, Inc. Sac de conservation a ouverture a ecartement
US6899460B2 (en) 2001-10-23 2005-05-31 S.C. Johnson Home Storage, Inc. Storage bag with openly biased mouth
US7364361B2 (en) 2001-10-23 2008-04-29 S.C. Johnson & Son, Inc. Storage bag with openly biased mouth
WO2004045472A1 (fr) * 2002-11-19 2004-06-03 Gamez Cano, Matilde Sac perfectionne
WO2006010482A1 (fr) * 2004-07-27 2006-02-02 Unilever Plc Composition de detergent particulaire et emballage associe
WO2009004294A1 (fr) * 2007-07-05 2009-01-08 Reckitt Benckiser N.V. Produit pour le nettoyage du linge
EP2420453A1 (fr) * 2010-08-20 2012-02-22 Arwed Löseke Papierverarbeitung und Druckerei GmbH Procédé de fabrication d'un sac de sol en bloc
IT201600110152A1 (it) * 2016-11-02 2018-05-02 Eudorex S R L Supporto multiuso a rilascio graduale di liquido detergente.
CN113499640A (zh) * 2021-07-09 2021-10-15 刘忠伟 预切扩张式过滤片生产装置
WO2023068918A1 (fr) * 2021-10-18 2023-04-27 Todo En Promocionales Um, S.A. De C.V. Sachet pour emballage à liaisons latérales et couture exposée

Also Published As

Publication number Publication date
EP0345838A3 (fr) 1990-09-19
GB8811794D0 (en) 1988-06-22
MX172133B (es) 1993-12-06
BR8902327A (pt) 1990-01-09
CA1332587C (fr) 1994-10-18
IE891611L (en) 1989-11-18
JPH0249697A (ja) 1990-02-20
AR244167A1 (es) 1993-10-29

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