WO2001053597A1 - Sacs hautes performances resistants au sechoir - Google Patents

Sacs hautes performances resistants au sechoir Download PDF

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Publication number
WO2001053597A1
WO2001053597A1 PCT/EP2000/012266 EP0012266W WO0153597A1 WO 2001053597 A1 WO2001053597 A1 WO 2001053597A1 EP 0012266 W EP0012266 W EP 0012266W WO 0153597 A1 WO0153597 A1 WO 0153597A1
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WO
WIPO (PCT)
Prior art keywords
bag
bag according
tissue
dryer
μnm
Prior art date
Application number
PCT/EP2000/012266
Other languages
German (de)
English (en)
Inventor
Rainer Jeschke
James A. Smith
Original Assignee
Henkel Kommanditgesellschaft Auf Aktien
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 Kommanditgesellschaft Auf Aktien filed Critical Henkel Kommanditgesellschaft Auf Aktien
Publication of WO2001053597A1 publication Critical patent/WO2001053597A1/fr

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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
    • D06F95/00—Laundry systems or arrangements of apparatus or machines; Mobile laundries 
    • D06F95/002—Baskets or bags specially adapted for holding or transporting laundry; Supports therefor
    • D06F95/004—Bags; Supports therefor
    • D06F95/006—Bags for holding the laundry during washing

Definitions

  • the invention relates to relatively soft and flexible devices for use in cleaning, refreshing or other treatment of tissues or tissue products.
  • These devices are essentially designed in the form of a bag and are preferably used in the context of fabric treatment systems as a container for fabric products which are treated with heating and tumbling in a rotary tumble dryer.
  • a dry cleaning method is also provided.
  • organic solvents are usually used, which contaminate e.g. water-insoluble substances - i.a. Greasy, oily dirt, etc. - Dissolve or disperse easily and have low boiling points, which enables easy recovery of these solvents.
  • An object of the present invention was therefore to provide novel bags which are so soft and flexible that they can withstand repeated use under the action of heat and tumbling motion in a rotary hot air dryer without breaking or tearing.
  • Another object of the invention was to provide a tissue treatment system.
  • An additional object of the invention was to develop a method for cleaning and / or refreshing soiled tissue products.
  • the object of the invention in a first embodiment is therefore a soft and flexible high-performance bag with a bending force of less than 30 ⁇ Nm in the direction of Rolling or tumbling in a rotary dryer, and its use for
  • the bags can be in a variety of appearances and designs.
  • Fig. 1 shows a perspective view of a bag with a Velcro fastening system (loop part of the Velcro strip not visible).
  • Fig. 2 shows a perspective view of the back of a bag with a Velcro fastening system (hook part of the Velcro strip not visible).
  • Fig. 3 shows a bag with ventilation in a perspective view.
  • Fig. 4 shows another embodiment of a vented bag in a perspective view.
  • Fig. 5 shows a perspective view of a bag with a fastening system that has a fold-over flap and a cut-out opening.
  • Fig. 6 shows a perspective view of a pouch with a tear strip.
  • Fig. 7 shows a perspective view of a bag which has side surfaces folded in the longitudinal direction.
  • Fig. 8 shows a perspective view of a bag that has longitudinally folded side surfaces and folded upper and lower parts.
  • Fig. 9 shows a perspective view of a bag that has longitudinally folded side surfaces and folded upper and lower parts.
  • Fig. 10 shows a perspective view of a tapered bag with a rounded flat base and a cylindrical body.
  • Fig. 1 1 shows a perspective view of a tapered bag with a rectangular base and defined side surfaces.
  • Fig. 12 shows a perspective view of a bag with a rounded base and a cylindrical body with a fold.
  • Fig. 13 shows a further perspective view of a bag with a Velcro fastener (loop part of the Velcro fastener not visible).
  • Fig. 14 shows a further perspective view of a bag with a Velcro fastener (hook part of the Velcro fastener not visible).
  • the bags have an opening and are distinguished by the property of softness or flexibility.
  • softness or “flexibility” it is meant that it is a film or a substrate which has only a minimal rigidity / rigidity, generally has no fixed structure and can be moved with little effort or pressure.
  • soft and flexible bags are usually quite pleasant to the touch.
  • the pouches should be soft enough to withstand repeated use (e.g., fifteen or more times) with excessive warming and tumbling, i.e. without breaking or tearing.
  • a stiffer bag could break under the same conditions after a few use cycles and would therefore not be reusable.
  • the bags should have a bending force of max. In the direction of their rolling or tumbling motion in the rotary dryer. Have 30 ⁇ Nm. It is even better if the bending force in this direction is below 25 ⁇ Nm; a bending force of less than 22 ⁇ Nm would be ideal.
  • the bending force in the direction perpendicular to the roll direction of the bag ie the direction which, after being placed in the dryer, runs from the front of the dryer drum to the rear thereof) should preferably not exceed 30 ⁇ Nm. are even better below 27 ⁇ Nm.
  • the bag should also have a bending force of at most 30 ⁇ Nm in the rolling direction after at least fifteen uses in the dryer. It is even better if the bending force in this direction is below 23 ⁇ Nm; a bending force of less than 18 ⁇ Nm would be ideal.
  • the bending force of the bag in the direction orthogonal to the rolling direction should have a bending force of 28 ⁇ Nm after at least fifteen uses in the dryer. It is even better if the bending force in this direction is below 24 ⁇ Nm; a bending force of less than 20 ⁇ Nm would be ideal.
  • the pouch should also be characterized by a minimal increase in hysteresis between its new condition and the condition after at least fifteen uses. It is preferable to increase the hysteresis value by a maximum of about 20% after at least fifteen uses.
  • the bags according to the invention generally have good rolling properties and should be so soft that they roll substantially evenly in a rotary dryer during the tumbling movement.
  • good rolling properties it is meant that the bag is sufficiently soft and pliable to roll in a generally rhythmic flow and almost continuously in a direction opposite to the direction of drum rotation after being filled with one or more fabric products and placed in a drum dryer.
  • Good rolling behavior of the bag reduces the creasing of the tissue products if the bag is used in the context of the tissue treatment embodiment described below.
  • good rolling behavior contributes to a higher resistance to melting or failure of the bag at high temperatures, since the bag rolls in the dryer drum so evenly that the hot air inlet of the dryer cannot act on any part of the bag for a long time.
  • a bag with poor rolling behavior would be stiffer and less flexible and flexible and would therefore perform an uneven and less rhythmic rolling movement when the dryer drum was rotating. Such a bag with insufficient rolling properties would therefore perform an irregular rolling movement with an increased probability and could even tend to form bridges or become jammed in the drum. Even jamming of the bag in front of the hot air inlet - and thus local melting of the material - would be possible.
  • the bag can be made of any material, as long as the product is soft enough to remain unbreakable and tear-resistant even after repeated use under elevated temperatures and tumbling movements and to perform a smooth rolling movement in the dryer drum that prevents local melting. So the material from which the bag is made, e.g. Polypropylene, polyethylene, polyamide and others or also contain mixtures of these components.
  • the bags are made from a blend of polypropylene and ethylene vinyl acetate (EVA) (available, for example, from Laminated Films and Packaging, Portsmouth, New Hampshire, USA). Bags made from this preferred material are relatively soft and flexible and have an excellent rolling behavior. It is believed that when combined with polypropylene, the EVA increases the flexibility of the polymer chain; however, the embodiment is by no means limited to this mechanism of interaction between EVA and polypropylene. Use of these bags in the cleaning, treatment or refreshing of tissue products results in a surprising reduction in the formation of wrinkles in the treated tissue products.
  • EVA ethylene vinyl acetate
  • the bag can be of any known construction. Accordingly, it can be produced by means of extrusion, blow molding or melt molding processes or the like.
  • the melt molding process includes calendering and three different extrusion processes: tubular film blowing, slot die extrusion and lamination on one Support material.
  • calendering a continuous film is produced by squeezing a thermoplastic between at least two metal rollers.
  • tubular film blowing a tube is extruded from a vertical ring die and expanded with air to a size that depends on the desired film properties. The tube is then cooled, folded flat in a tubular state and wound on rolls as a slit or tubular film.
  • a thin strand of polymer melt is injected from a slot die onto a chill roll and quickly cooled there.
  • the speed of the cooling roll is higher than the linear exit speed of the melt from the extrusion die in order to achieve a desired reduction in the film thickness.
  • the bag can be constructed such that it has at least one seam on at least one side (so-called side seam bag).
  • the pouch can be produced in the co-extrusion process tubular or in any other desired shape. Multi-layer tubular designs are also possible.
  • a preferred method for producing the bags is film casting, with which smooth and shiny bags can be achieved. All of these methods are widely known, so that the manufacture of the bags by each of these methods is easily possible for the skilled worker.
  • edges and sides of the bag can be connected to one another by means of adhesive or in any other known manner.
  • Another advantage of polypropylene / EVA bags is their thermal sealability. It is therefore possible to produce thermally welded bags on three sides in a very economical manner.
  • the bags preferably have a thickness of between approximately 0.076 mm (3/1000 ”) and approximately 0.13 mm (5/1000"), although the skilled worker can produce bags of any thickness. tel is possible. Bags for use in tissue treatment systems preferably have a thickness of approximately 0.089 mm (approximately 3.5 / 1000 ").
  • the bags are preferably equipped with a fastening system for closing their opening.
  • the opening in the bag body can be closed by actuating this fastening system or simply by folding the bag in the corresponding area.
  • the bag can be designed with any known fastening system, but also without such a fastening system.
  • the bag closure can via press studs, a zipper or Velcro fastener, magnetic or Velcro® strips, folds, locking elements, buttons, a latch and / or a Ziplock® system.
  • the opening does not necessarily have to lie on the top of the bag, but can also be located at any side location of the bag and can be of any design.
  • the bottom and side edges of the bag can be joined together by folding, thermal welding, gluing, or a combination of these methods, or any other known method.
  • the opening of the bag can be closed with a Velcro fastener (for example Velcro®), the hook and loop parts of which are glued to the bag, for example with a pressure-sensitive hot glue.
  • the hook parts of the closure can be mushroom-shaped, hook-shaped, palm-shaped or umbrella-shaped or have any other shape that can be brought into or out of engagement with the loop part.
  • the loop part can consist of knitwear, woven or non-woven, velor or non-velor, as loop material or any other material that can be brought into or out of engagement with the hook part.
  • a preferred Velcro fastener system is offered by Velcro® under the name "Velcro Touch Seal®".
  • Adhesive fastening systems have the disadvantage that the adhesive melts in high-temperature dryers and can leave undesirable residues on the walls of the dryer drum.
  • hook and loop parts of the Velcro system can also be attached to the bag by thermal welding.
  • the hook and loop parts can be welded on both as individual strips and on a separate unit or a separate part of the bag material, which in turn is then is attached to the bag by means of thermal welding and forms its upper part (see, for example, Fig. 14).
  • the bag part that includes the top. is made of thicker material than the rest of the bag and then has less flexibility. so that the user can conveniently attach the fastening system in practically the same position each time it is used.
  • the hook and loop parts of the Velcro fastener can each have a thickness of 0.10 mm (4/1000 ") to 0.15 mm ( 6/1000 ") and more.
  • An advantage of thermoformed Velcro fasteners is that they are melt or failure resistant at high temperatures and that no glue is required to attach them to the bag. It is also advantageous that the Velcro fastener can be equipped with a punched or scored folding edge along the closing edge, which allows the consumer to close the bag effectively and conveniently.
  • Fig. 1 shows a bag 1 made of bag material 5, which has a first fastening element 6 with at least one hook part 2, which is surrounded by a first boundary surface 3 and inserted into the bag 1 near the opening 4.
  • the first fastening element can also be provided at any other desired location on the bag.
  • Fig. 1 (and also Figs. 2, 3, 5 and 6) a fastener is shown, which extends across the entire width of the bag; however, this is not absolutely necessary, ie the fastening element can also run only over part of the bag width or can be divided into several separate, smaller strips which extend across the bag width.
  • the first boundary surface 3 lies between the hook part 2 of the Velcro fastener system and the bag material 5, which forms the remaining part of the bag 1.
  • This first boundary surface 3 represents the outer boundary of the fastening element 6.
  • the first fastening element 6 is fastened to the bag 1. Examples of this method include US Pat. Nos. 5,786,061 and 5,942,177, which are incorporated by reference in their entirety in the present text. See also US Pat. Nos. 5,540,970 and 5,286,431, which are also incorporated by reference in their entirety into this patent.
  • Fig. 2 shows the back of the arrangement shown in Fig. 1.
  • the bag has a second fastening element 7 with at least one loop part 8, which is surrounded by a second boundary surface 9 and inserted into the bag 1 near the opening 4.
  • this second fastening element can be attached at any desired point on the bag.
  • the second boundary surface 9 lies between the loop part 8 of the Velcro fastener and the bag material 5, which forms the rest of the bag 1.
  • This boundary surface 9 represents the outer boundary of the second fastening element 7.
  • the fastening of the second fastening element 7 to the bag can, if desired, be carried out by thermal welding.
  • the opening 4 is closed by the upper part of the bag 1 being folded over such that the hook part 2 comes into contact with the loop part 8.
  • Fig. 14 shows an embodiment similar to Figs. 1 and 2, in which the fastening system also comprises hook and loop parts. However, these are attached to a separately built top part and connected to the bag by thermal welding or in some other way to form the top part and the opening of the finished bag. A fold line indicates to the user at which point the bag has to be folded in order to bring the hook and loop parts of the Velcro fastener into engagement with one another.
  • Fig. 13 shows a bag with a fastening system in which the hook and loop parts of a Velcro system are attached to the inside edge of the bag opening.
  • the bag 1 has a folding flap 10, which represents a problem-free and user-friendly closure system.
  • the folding flap 10 can be placed over the bag opening 13 so that a first fastening element 11, which can be the hook or loop part of a Velcro fastener, but also any other fastening system), with a second fastening element 12. which is also the hook or loop part of a Velcro Closure (but can also be any other fastening system), can engage.
  • the bag opening 13 is designed in the form of a cutout from the bag 1, which makes access to the opening 13 easier. However, such a cut-out opening is not necessary; any other bag opening would be suitable as long as it allows the insertion of a tissue product.
  • the opening of the bag is tightly closed before use, but can easily be opened by the user by means of a tear-off strip or another device (see, for example, Fig. 6, which shows a tear-off strip 12 on the top of the bag 1).
  • This bag can additionally have a fastening system 10 of one of the types described above, in order to be releasably closed again for use.
  • This version with tear-off strips is particularly useful if the bags are to remain sealed until they are used, e.g. for storage (e.g. if the inner surface of the bag contains an active ingredient and / or a composition as described below).
  • the bags are preferably foldable so that they can be kept folded flat.
  • the bags can have any desired design or shape.
  • the bag can have, for example, at least one fold in any side, top or bottom surface. This fold acts as an insert, the expansion of which increases the interior volume of the bag.
  • the fold can be of any size; the larger its size, the more the inside volume of the bag can be enlarged by its expansion.
  • the bag can comprise a front and rear wall, each of which has an upper edge, a lower edge and two side edges. The lower part can connect the front and rear walls along their lower edges. If desired, an upper part can be provided that connects the front and rear wall along the upper edges.
  • a fold can be integrated in one of the front and rear walls as well as in the upper or lower part.
  • the bag should preferably have at least two folds in at least two opposite walls.
  • the Wrinkles can be formed so that they connect the bag material like an accordion.
  • the 3-bag should preferably be folded flat so that it can be easily transported and stored. It can then be pulled apart over the folds for use.
  • the bag then allows a better wobble movement of the items of clothing contained therein due to the increased internal volume. The cleaning, refreshing and drying process is thus facilitated, since there can be more optimal contact with a substrate (for example in the form of a sheet) which carries a tissue treatment agent or a tissue treatment composition.
  • the wobble movement can be more gentle due to the fold, which further reduces the formation of creases or creases in the laundry items. Due to the folds, a larger bag can be packed in a smaller container or placed in a smaller space.
  • the bag can e.g. have a front and rear wall, a lower part and an optional upper part.
  • Opposing side walls each of which has a fold, can connect the front and rear walls to one another.
  • the side walls which have the folds, can be pulled apart (e.g. to accommodate several items of clothing in the bag) and folded together so that the bag can be stored in a flat folded state on the one hand or tumbled in a rotary dryer on the other hand.
  • the lower part connects the front and rear walls along their lower edges.
  • an upper part can also be provided, which connects the front and rear walls along their upper edges.
  • the opening can be at any desired location, but should preferably be in the upper bag area or be provided instead of the upper part. So the bag can e.g. be essentially box-shaped or pillow-shaped when the fold is pulled apart.
  • folds can also be provided in the upper and / or lower part. In general, the more folds it contains and the larger they are, the more the bag can be pulled apart.
  • Figs. 7-9 essentially show modifications of the folded embodiment.
  • folds 14 are provided in at least two opposite sides of the bag 1, but essentially in the opposite side surfaces 15.
  • the bag 1 comprises a front wall 16 and a rear wall 18, each with an upper edge 19 or 20, a lower part 29, a lower edge 21 or 22 and two side edges 25 or 24. Front and rear walls 16 and 18 are on their lower edges 21 and 22 connected together.
  • the side walls 15 provided with the fold can preferably be folded flat along these folds 14 for storage or pulled apart to form a substantially pillow-shaped structure.
  • the bag has an opening formed by the top edges 19 or 20 or in the vicinity thereof.
  • a fastening system 27 is also provided on or near the upper edge 19 or 20 of the front wall, with which the bag can be opened and closed.
  • the folds can preferably be folded flat to allow the pouch to be stored in this state.
  • the lower edges 21 and 22 can also be connected to the lower part 29 by means of glue, by thermal welding or another previously known method.
  • the bag equipped with this fold can be designed in such a way that it takes on a desired shape when pulled apart.
  • the bag can have an essentially box-like or pillow-like shape (see FIGS. 8 and 9).
  • the folds 14 can be present, for example, as shown in FIG. 8, both in the side walls 15 and (or alternatively) in the upper part 17 and the lower part 29.
  • the bag 1 comprises a front wall 16 and a rear wall 18, each with an upper edge 19 or 20, a lower part 29, a lower edge 21 or 22 and two side edges 23 or 24. Front and rear walls 16 and 18 are on their lower edges 21 and 22 connected to each other on the lower part 29. The connection between the front wall 16 and the rear wall 18 is established by the opposite longitudinally folded side walls 15.
  • the side walls 15 provided with the fold can preferably be folded flat along these folds 14 for storage or pulled apart to form an essentially box-shaped structure. hen.
  • the bag has an opening formed by the top edges 19 or 20 or in the vicinity thereof.
  • a fastening system 27 is also provided on or near the upper edge 19 or 20 of the front wall, with which the bag can be opened and closed.
  • the folds can preferably be folded flat to allow the pouch to be stored in this state.
  • the lower edges 21 and 22 can moreover be connected to one another by means of adhesive, by thermal welding or another previously known method.
  • the folds are preferably provided only on two opposite sides - typically in the form of an accordion-like fold.
  • the bag 1 comprises a front wall 16 and a rear wall 18, each with an upper edge 19 or 20, a lower part 29, a lower edge 21 or 22 and two side edges 23 or 24.
  • Front and rear walls 16 and 18 are connected at their lower edges 21 and 22 via the lower seal 30 and at their upper edges 19 and 20 via the upper seal 31 or by folding the upper edges 19 and 20 together.
  • the connection between the front wall 16 and the rear wall 18 on the side edges 23 and 24 is established by the opposite longitudinally folded side walls 15.
  • the side walls 15 provided with the fold can preferably be folded flat along these folds 14 for storage or pulled apart to form a substantially pillow-shaped structure.
  • the bag has an opening formed by the top edges 19 or 20 or in the vicinity thereof.
  • a fastening system 27 is also provided on or near the upper edge 19 or 20 of the front wall, with which the bag can be opened and closed.
  • the folds can preferably be folded flat to allow the pouch to be stored in this state.
  • the lower edges 21 and 22 can moreover be connected to one another by means of adhesive, by thermal welding or another previously known method.
  • the connection of the upper edges 19 and 20 can take place by folding over and actuating the closing device, but also - without folding over - only by operating the closing device.
  • the bag has an essentially flat (flat) bottom with outer edges, which has a diameter d.
  • a straight-walled (ie not or hardly conical) or conical bag body attached At the outer edges of this bottom is a straight-walled (ie not or hardly conical) or conical bag body attached.
  • an upper part forms an opening and has a width w.
  • the diameter d is essentially equal to the width w.
  • a bag according to this embodiment can be substantially cylindrical or box-shaped.
  • an upper part forms an opening and has a width w.
  • the diameter d is larger than the width w, the bag body tapering from bottom to top.
  • the upper part can be locked with a fastening system.
  • a bag according to this embodiment can thus have, for example, a cone or pyramid shape.
  • the bag body can, for example, be cylindrical (or without defined side surfaces) and tapered, as in Fig. 10, so that the bag generally acquires a conical shape.
  • the body can be designed conically with defined side surfaces, which each form one side of the bag and are connected to the flat bottom along their respective lower edge.
  • the bag 1 can have a substantially flat bottom 39 with outer edges 37 and a diameter d.
  • the floor shown is rounded; however, it is obvious to the person skilled in the art that this floor can have any desired shape.
  • a body 36 with an upper body part 38 is attached to the outer edges 37 of the flat bottom 39. This upper part 38 forms an opening 35 and has the width w.
  • the body 36 tapers conically from the flat bottom 39 in the direction of the upper body part 38.
  • the opening formed by the upper body part 38 is preferably closed by a fastening system 33.
  • the upper part 38 can first be folded down before actuating this fastening system.
  • the bag is preferably designed such that it can remain upright on a flat surface.
  • the body is tapered, while the lower part has an essentially square or rectangular shape with defined corners.
  • the bag 1 shown in FIG. 11 has a flat bottom part 39 of essentially rectangular cut with defined corners and an opening 43.
  • the body 36 of the bag can have a front wall 41, a rear wall 42 and two side walls 40, the bottom part 39 all of these walls along their lower edge. ten connects. If desired, the front wall and rear wall can be connected along their upper edges using an upper part (not shown). In this version, the bag is pyramid-shaped.
  • the bag can also have a flat bottom and a conical or non-conical body and at least one fold along one of its sides, the upper part or bottom.
  • the bag 1 has e.g. a substantially flat (or flat) rounded bottom 46 with outer edges 37 and the diameter d.
  • a body 36 is attached to the outer edges 37 of the base 46; this body 36 also has an upper part 38 which forms an opening.
  • the upper part 38 has the width w, the diameter d being greater than the width w.
  • the body 36 tapers from the bottom 46 in the direction of the upper part 38.
  • the opening formed near the upper part 38 is preferably closed by a fastening system 33. The opening can be at any desired location, but should preferably be near the top of the bag or be provided in place of this top.
  • the side walls 45 are squeezed together at their junction with the upper part 38 or bottom 46 (or in the vicinity of this junction).
  • the upper part 38 can first be folded down before the fastening system is actuated.
  • This bag is also preferably designed so that it can remain upright on a flat surface.
  • the bags which correspond to this straight-walled or conical design with a flat bottom are advantageous in that they represent a dryer-proof device which can stand upright when placed on a flat surface (for example a floor), which makes filling or Loading process (eg with tissue products) results. It is therefore not necessary to have both hands to insert the tissue products into the bag.
  • a circular base gives a shape that essentially corresponds to that of a typical dryer drum.
  • the bag can therefore be placed in the dryer in such a way that its flat, round bottom lies close to the round back of the dryer drum, which means that the bag rotates easily while minimizing vertical fluctuations in position and causes a very effective wobble. movement of the clothing results. This can reduce the time it takes to clean or refresh the garments. Bags with a round bottom are particularly suitable to further reduce creasing and wear of the fabric products during processing.
  • the bags can be equipped with ventilation devices, valves or other systems for extracting moisture, which allow air, moisture and / or vapors to enter and exit.
  • the bags according to the invention can have at least one moisture extraction device, by means of which moisture, air and vapors can flow in and out through the inner and outer surfaces of the bag; Examples of this are shown in Figures 3 and 4.
  • the moisture extraction device can also make a useful contribution to allowing vaporized or volatilized substances to be drawn off from the inside of the bag.
  • Such a device can be provided anywhere on the bag (including the sides, top and bottom parts etc.) and can be designed in any suitable form (e.g.
  • the fastening system in such a way that air or moisture around the outer edges of the fastening system can flow into and out of the bag (see Fig. 4).
  • the bag can be designed so that air. Moisture and / or vapors are evacuated in a controlled manner via venting devices that open in response to changing vapor pressure inside the bag (eg flaps or openings that are arranged around the outer edges of the fastening system).
  • venting devices eg flaps or openings that are arranged around the outer edges of the fastening system.
  • the bag inflates or expands due to increasing steam pressure, which in this case opens the ventilation device so far that part of the steam can escape.
  • the ventilation devices allow partial extraction of the vapors depending on changes in the internal vapor pressure.
  • the moisture can be removed from the bag via a separate fitting or a separate valve which allows vapor pressure equalization only in one direction, ie inwards or outwards - depending on the purpose of the bag.
  • Fig. 3 shows a bag 1 with at least one ventilation device 47 through which moisture, air. Vapors, smells and pressure can escape inside or outside through the bag surface.
  • This ventilation device 47 can be implemented in various forms (pores, slots, holes, etc.). As shown in Fig. 3, the ventilation device can be crescent-shaped with a matching flap.
  • the bag can have one or more ventilation devices.
  • FIG. 4 Another embodiment of a bag with a ventilation device is shown in Fig. 4.
  • the bag 1 here has first and second fastening elements 48 and 49 which are in their closed state (i.e. in engagement with one another).
  • the first and second fasteners 48 and 49 do not extend to the outer edges of the bag;
  • a ventilation area 50 is formed between the edges of the fastening elements and the edge of the bag. Air and moisture can escape through this ventilation area 50.
  • the ventilation area can be designed in such a way that the escape of air, moisture and / or vapors is released by ventilation devices which open as a function of changes in the vapor pressure inside the bag (e.g. flaps or openings around the outer edges of the fastening system).
  • bags of this embodiment can be used, for example, for general treatment - and in particular for softening - moist or wet tissue products.
  • the moisture extraction devices serve the purpose of facilitating the escape of moisture, odors, vapors, etc. from the bag while it is wobbling. in the heated drum.
  • the fabric treatment agent or the fabric treatment composition is placed in the bag together with the selected wet items of clothing, whereupon the latter is then closed and closed the remaining wet clothing (which is outside the bag in the dryer) is then tumbled in the heated dryer.
  • the moisture removal device is preferably designed such that it allows the items of clothing in the bag to dry in the course of the tumbling movement, but does not effect any treatment of the items of clothing outside the bag.
  • bags corresponding to this embodiment can be used to clean, refresh or otherwise treat substantially dry garments, but moisture is present in the bag from a fabric treatment agent and / or fabric treatment composition.
  • the moisture extraction device in this case facilitates the escape of this moisture and / or any evaporated or volatilized substances from the bag while it is tumbling in the hot dryer.
  • the bag in a further optional embodiment, at least part of the inner surface of the bag consists of an absorbent material.
  • the bag can be designed as described above, with the exception, however, that it has an absorption layer in its interior.
  • the innermost layer preferably consists of a reticulated plastic film formed in situ, a plastic film filled with solid granules or solid porous absorbent, or a combination of foamed and solid-filled plastic. Examples of such materials include polyethylene, kieselguhr-filled polyethylene, polypropylene, activated carbon, hydrophilic polyurethane, non-hydrophilic polyurethane, glass fiber, glass beads and other solid absorbents which are dispersed in a film.
  • the bag can optionally be manufactured in two stages. The outer bag layer is preformed; in a second step, an adsorbable material is then attached to the inside of the bag.
  • the fiber composites which can be used according to the invention to form the absorbent inner layer of the bag, can generally be nonwoven products with bonded or hot-bonded fiber composite and reticulated or ribbed fiber structure (also in the form of fibrous mats with random or arbitrary fiber arrangement). act. Both natural fibers (e.g. wool, silk, jute, hemp, cotton, linen, sisal, ramie) and synthetic fibers such as rayon, cellulose esters, polyvinyl derivatives, polyolefins, polyamides or polyesters can be considered as fibers. Fibers of any diameter or thread count can be used according to the invention. Preferably, the nonwoven should have some tear or dissolution resistance when used (e.g. in an automatic dryer); this can be achieved by a random or arbitrary arrangement of the fibers in the composite, which ensures excellent strength in all directions. Examples of preferred fiber composite materials that are suitable for the substrate according to the invention include 100% rayon fabrics available as described above.
  • the absorbent inner part of the bag can be given a suitable absorbent capacity in various ways.
  • the bag can e.g. comprise one or more substrate layers, the innermost film being absorbent, e.g. a reticulated plastic foam, a plastic film filled with solid granules or solid porous absorbent or a combination of foamed and solid-filled plastic
  • the bags themselves can be made from any material that is suitable for the desired end use.
  • the bag material can comprise a metal and / or silicate layer, which can help to increase the heat and tear resistance of the bag.
  • the layered metal and / or silicate is for this purpose by means of any known method (eg coating, lamination, vapor deposition etc.) applied to a substrate layer, either only on the outside or inside or on both sides of the bag. It is not necessary to coat the entire outer or inner surface with the metal or silicate; on the contrary, the metal or silicate coating can also be carried out only in strips or points, among other things, any known method being used for fastening these strips, points, etc.
  • a metal and / or silicate layer can be provided as a third layer between the outer and inner layers within the bag wall.
  • the metal layer preferably has a thickness between approximately 300 and approximately 500 ⁇ , but should preferably not be thicker than approximately 0.25 mm (approximately 1/1000 "). However, depending on the end purpose, the metal layer can be of any thickness and also be applied in multiple layers, which further increases their thickness.
  • Bags suitable for use in accordance with the invention should preferably have dimensions between approximately 45.6 cm x 58.3 cm (18 “x 23") and approximately 91.2 cm x 101.3 cm (36 "x 40").
  • the size of a pouch for use in the present invention is most preferably between about 50.7 cm x 70.9 cm (20 "x 28") and about 65.8 cm x 96.3 cm (26 "x 38") ) prefers. These dimensions preferably result in a pouch with an area in the range of about 704 cm 2 (about 1 120 square inches), preferably from about 704 cm 2 to about 980 cm 2 (about 1120 to about 1560 square inches).
  • the bags can also be made correspondingly small (for example to accommodate a single soiled tissue product or several small tissue products), namely with dimensions between approximately 45.6 cm ⁇ 55.7 cm and approximately 50.7 cm ⁇ 65.8 cm (approximately 18 "x 22" and about 20 “x 26"), but preferably 50.7 cm x 60.7 cm (20 "x 24").
  • the invention relates to a tissue treatment system for chemical cleaning. Refreshing or other conditioning of tissue products.
  • the tissue treatment system comprises at least two components, namely (a) at least one tissue treatment agent and (b) a high-performance pouch as described above.
  • a fastening system for closing the opening is preferably present.
  • the tissue treatment system is to be used for the chemical cleaning, refreshing or other conditioning of tissue products.
  • the term "fabric” or “fabric product” refers not only to items of clothing, but also to any other textile products that are usually chemically cleaned or treated, e.g. Sheets, curtains, carpets, upholstery, towels, etc.
  • “fabric” can also be wool. Wool blends, linen, cotton, knitted, knitted and crocheted goods, double-layer knitted goods, polyester, twill, synthetics etc. as well as fine textiles such as 100% acetate, silk, rayon, but also mixtures of these fabrics. Bags and tissue treatment systems are suitable for processing these tissues both in the wet and in the moist or dry state.
  • dirty refers here - in connection with the chemically cleaned, refreshed or otherwise treated fabrics - among other things. both odor-sensitive substances such as Tobacco smoke, residues, perfume, mold, sweat etc. as well as visible stains and impurities.
  • Treatment in the sense of the invention therefore means any chemical treatment of tissues, including chemical cleaning and refreshing the same.
  • Refreshing is understood to mean the removal, deodorization or chemical neutralization of odor-sensitive compounds on or in a tissue and / or their masking with a desired fragrance.
  • dry cleaning or “cleaning” refers to the removal of both types of “dirt”.
  • the term "dryer” means a rotary hot air dryer which causes the clothing to tumble in a drum with warm or heated air at elevated temperature.
  • the temperature inside such a dryer is usually between approx. 40 ° C and approx. 95 ° C, but can occur at certain points within the dryer - especially on the walls of the dryer unit and in close to the hot air inlet (often referred to as “hot spots” in the dryer) - also reach up to 200 ° C. These higher temperatures are also characteristic of industrial dryers or laundromat dryers.
  • the temperature in the high-performance bag is preferably between approximately 50 ° C. and approximately 70 ° C. over a preselectable period (preferably approximately 15 to approximately 45 minutes).
  • each of the above-described embodiments of the bag is suitable for use in the context of a tissue treatment system. Because of their softness and flexibility, the bags have good rolling properties inside the dryer. that the textile pieces crease less. In addition, these rolling properties ensure that the bags are sufficiently resistant to melting or failure, even at high temperatures.
  • Flat bottom bags have e.g. the advantage that they can remain upright when placed on a flat surface (e.g. on a floor), which makes it easier to fill or insert the tissue products. If the bottom of the bag is also circular, its shape essentially corresponds to that of a typical dryer drum.
  • a bag with a round bottom can therefore be placed in the dryer in such a way that this bottom comes to rest near the round back of the dryer drum, which means that the bag rotates easily while minimizing vertical fluctuations in position and results in an effective wobble of the items of clothing inside can.
  • This ease of rotation can also shorten the time it takes to clean or refresh the garments, which can often be removed without wrinkles after processing.
  • more parts can also be accommodated in the bag, which can save time and money.
  • These bags can also be conveniently stored and packed. Vented or vented bags are also useful if it is important to remove unwanted moisture from the bag during processing.
  • an effective amount of the tissue treatment agent or the tissue treatment composition comes into contact with the soiled and / or stained tissue (s) and effects its chemical treatment.
  • the agent or composition arrives in contact with the soiled and / or leaky parts of the fabric and removes or reduces the soiling or stains. Additionally or alternatively, the agent or the composition come into contact with the tissue and bring about its refreshment.
  • the tissue treatment agents or tissue treatment compositions are preferably - but not necessarily - effective under the action of heat.
  • the contaminated tissue (s) is / are added to the bag together with an effective amount of at least one tissue treatment agent and / or a tissue treatment agent and / or a tissue treatment composition and the latter is then subjected to movement and heat, which causes the release of the agent and / or the composition in the liquid and / or vapor state from the substrate, the carrier substance, the tissue, an inner absorption surface of the bag, etc., on which the agent and / or the composition is present within the bag.
  • the liquid and / or vaporous agent or composition then comes into contact with the tissue product and effects its treatment.
  • the agent and / or the composition comes into contact with stained areas of the tissue and treats, cleans, removes or reduces these stains. Additionally or alternatively, the agent or the composition can come into contact with the tissue and refresh it.
  • tissue treatment systems provide tissue treatment agents as well as tissue treatment compositions of any kind.
  • the tissue treatment agent or the tissue treatment composition should not react with the material of the bag or with the tissue products in an adverse or harmful manner.
  • the fabric treatment composition can include water and fragrance or one or more other fabric treatment agents, but if desired also an organic solvent and / or a surfactant if desired.
  • the surfactants can act as cleaning enhancers by facilitating the removal of the dirt after the fabric treatment composition is once released from the substrate in the dryer.
  • tongues can be used non-ionic, amphoteric and anionic surface-active substances (also in combination). Alternatively, these can be systems based on organic solvents with high organic solvent proportions.
  • the composition may consist solely of a tissue treatment agent or of a tissue treatment agent in combination with another ingredient.
  • tissue treatment agents are e.g. Stain removers, anti-crease agents, dirt repellants, fatty acid condensates, bacteriostatics, brighteners, conditioners, dyes, coloring agents, fiber softeners, finishing agents, fragrances, germicidal substances, softeners, anti-mold and anti-moth agents, shrinkage inhibitors, preservatives, fiber softeners, fiber softeners, Deodorants, insect repellants. Sizing agents, starch, etc. and mixtures of these substances.
  • the tissue treatment agents can be present on a substrate (e.g. cloth, sponge, ball, applicator, rod, granules, cubes).
  • a substrate e.g. cloth, sponge, ball, applicator, rod, granules, cubes.
  • this substrate must be large enough to contain an effective amount of the tissue treatment agent and / or the tissue treatment composition.
  • the preferred substrate is a sheet, e.g. a sheet, cloth or sheet made of plastic or porous material onto which the agent can be impregnated, coated or applied in any other way.
  • tissue treatment agents and / or tissue treatment compositions are present on a substrate, they are usually kept in a wet or moist state.
  • the agents and / or compositions can be used in the form of a solution for spraying or rolling, but also dry (e.g. as a powder or granules).
  • tissue treatment agents and / or tissue treatment compositions according to the invention can be done in any way respectively.
  • the tissue treatment agent and / or the tissue treatment composition in the tissue treatment system is on a substrate as described above.
  • the preferred substrate is a sheet.
  • Flat structures with a reticulated or ribbed fiber structure or in the form of fibrous mats with random or arbitrary fiber arrangement can also be used.
  • the fibers can be natural fibers (e.g. wool, silk, jute, hemp, cotton, linen, sisal, ramie) or synthetic fibers such as rayon, cellulose esters, polyvinyl derivatives, polyolefins, polyamides or polyester. Fibers of any diameter or thread count can be used according to the invention.
  • the nonwoven should have some tear or dissolution resistance when used (e.g. in an automatic dryer); this can be achieved through a random or arbitrary arrangement of the fibers in the composite, which ensures strength in all directions.
  • nonwoven material which is suitable as a substrate in the context of the invention are e.g. Flat structures made from 100% rayon, 100% polypropylene or material mixtures (e.g. from cellulose-based rayon and synthetic fibers).
  • the dimensions of these fabrics should preferably be between about 7.6 cm x 10.1 cm (3 "x 4") and about 35.5 cm x 40.5 cm (14 "x 16"); on the other hand, they must be large enough to carry the desired amount of the fabric treatment composition.
  • the ideal size of the fabrics therefore varies between about 12.7 cm x 30.4 cm (5 "x 12") and about 22.8 cm x 25.3 cm (9 “x 10").
  • the preferred fabrics should have an area between about 16 cm 2 and about 336 cm 2 (12 square inches and about 224 square inches), but ideally between about 72 cm 2 and about 180 cm 2 (48 square inches and about 120 square inches). Is the bag so small that it can only hold a single soiled tissue product or several small tissue products (e.g.
  • the fabric should also be correspondingly small (e.g. dimensions between about 7 6 cm x 10.1 cm to approx. 15.2 cm x 22.8 cm (3 "x 4" to approx. 6 “x 9"), but preferably 14.3 cm x 21.5 cm (578 " x 8 '/ _ ").
  • the tissue treatment composition according to the invention can be released from the substrate (cloth, sponge, ball, applicator, rod, cube, granulate or the like) in any desired manner, e.g. when the tissue products and substrate (cloth, sponge, ball, applicator, rod, cube, granules, etc.) tumble together in the bag, preferably when heated.
  • one or more tissue products as well as a correspondingly large, flexible sheet which carries a tissue treatment agent and / or a tissue treatment composition are placed in the bag, the opening of which is then closed, whereupon the bag is moved and / or heated so intensely that the agent or the composition escapes from the flexible sheet upon contact with the fabric products.
  • the fabric describes a wobbling movement in the middle of the fabric products and thus causes the agent and / or the composition to be distributed evenly over these products. With this touch, the tissue products are cleaned, refreshed or otherwise treated with the agent and / or the composition.
  • the bag which contains the flexible sheet and the fabric product (s) can be placed in a rotary hot air tumble dryer which provides the heat and / or movement intensity (wobble) necessary for the action usually at a temperature of approx. 30 - 80 ° C (preferably 40 - 70 ° C; measured in the bag) over a preselected period of time.
  • a tumbling cycle of approximately 10-45 minutes is sufficient to allow the fabric treatment agent and / or the fabric treatment composition to escape from the fabric / the inner surface of the bag and to effect the treatment, cleaning or refreshing of the fabric products.
  • the tissue treatment agent or the tissue treatment composition can furthermore be applied directly to the soiled tissue which is to be cleaned, for example by spraying the chemical cleaning composition onto the tissue as a spray, applying it using a sponge or spray bottle, rolling it up wet or as a moist or sprinkled dry powder or granules. The tissue is then placed in the container and its opening is closed before the system is then rotated in a hot air dryer.
  • One possibility according to the invention which can be implemented both instead of and in addition to introducing an effective amount of the fabric treatment agent or the fabric treatment composition into the bag, is that an effective amount of the fabric treatment agent or the fabric treatment composition itself in part of the bag inner surface - at least in a part of it - releasably brought into absorption.
  • the inner absorption surface can be a fleece, which is attached to the inside of the bag in a second step after the bag has been manufactured.
  • the tissue treatment agent or the tissue composition to the inner absorbent surface of the bag wall itself (for example by spraying) after the bag has been produced.
  • the soiled tissue can then be placed in the bag, which is then closed and tumbled in a tumble dryer. While the agent or the composition removes the impurities from the tissue, excess moisture and the removed dirt can, if desired, also be absorbed by the absorbent surface of the bag. It is also possible to manually rub stained areas of tissue with the inside of the impregnated bag in order to pretreat the soiled surfaces with the agent or the composition so as to remove dirt.
  • the pouch can be designed to be disposed of after use, but can be made from a material that allows repeated use within different cleaning cycles.
  • the agent or the composition can be applied to the tissue in another suitable manner, the agent or the composition not needing to be contained in the absorbent surface. In this case, the absorbent surface can serve to absorb dirt and excess moisture during the cleaning process.
  • the bags according to the invention can contain at least one ventilation device that allows the inflow and / or outflow of moisture, air, vapors, vaporized or volatilized substances, odor and pressure through the bag surface.
  • This ventilation device can be designed in different ways, e.g. in the form of pores, slits, holes, etc. Bags according to this embodiment may be suitable for general treatment - especially for softening - of washed (ie moist or wet) fabric products, the ventilation devices serving the purpose of preventing the removal of odors, Steaming etc. from the bag during its tumbling motion in the heated dryer to facilitate.
  • the ventilation devices can be designed so that a controlled escape of air, moisture and / or vapors takes place in response to changes in vapor pressure inside the bag (e.g. based on flaps or openings around the outer edges of the fastening system).
  • the invention in another embodiment, relates to a method for conditioning, freshening up and cleaning an optionally soiled tissue.
  • the bag according to the invention can be placed in a rotary hot air dryer in order to bring about the heat and mixing required for the effect (tumbling movement).
  • the invention accordingly provides a method for cleaning and / or refreshing soiled tissue products, in which (a) a soiled (eg stained and / or in need of refreshing) tissue product is placed together with a tissue treatment agent in a pouch as described above, (b) the pouch sealed and the dryer started and (c) the treated tissue is removed from the bag.
  • the contents of the bag should preferably be thawed in the dryer.
  • tissue treatment agent and / or the tissue treatment composition at a temperature which causes the tissue treatment agent and / or the tissue treatment composition to be released in a liquid or gaseous state and so long that an effective amount of the released agent and / or the released composition with the contaminated tissue comes into contact and treats, cleans and / or refreshes it.
  • the fabric treatment agent or fabric treatment composition is placed in the bag together with the selected wet items of clothing, whereupon the latter is then closed and wet with the rest Clothing (which is outside the bag in the dryer) is then tumbled in the heated dryer.
  • the optional ventilation device of the bag is preferably designed such that it allows the items of clothing in the bag to dry in the course of the tumbling movement, but does not effect any treatment of the clothes located outside the bag.
  • Bags that are equipped with a ventilation device are also suitable for treating, cleaning or softening generally dry tissue products, the moisture from a tissue treatment agent or a tissue composition that is / are present in the bag, with it - often in evaporated or volatilized form - to be removed.
  • the material of the bag can also contain other materials that are suitable for the desired end use.
  • the bag material can comprise a substrate layer and a metallized layer.
  • the pouch is advantageous in that it is a dryer-proof device made of a material which is essentially impermeable to air and moisture and, moreover, is resistant to wear, abrasion and tearing under the conditions of the tumbling movement.
  • Another advantage of such bags is that they offer increased melt resistance at elevated temperatures, are generally more heat-resistant, reflect me, allow the use of thinner plastic, counteract static electricity and have a longer useful life. It is also advantageous that such bags are essentially impermeable to air and moisture and can even prevent chemicals (eg fragrance, organic solvent, volatile substances) that are present in the fabric treatment agent and / or the fabric treatment composition from passing through the bag material.
  • the bags which correspond to an embodiment of the invention have a bending force before use of less than 30 ⁇ Nm in the bag rolling direction in the dryer (ie here from the upper part to the lower part of the bag) and of less than 30 ⁇ Nm in the direction parallel to the rolling direction (ie here horizontally) the bag).
  • the bending force of these bags in the roll direction is less than 30 ⁇ Nm and parallel to the roll direction (i.e. the front-to-back direction of the bag lying in the drum) is less than 28 ⁇ Nm.
  • the increase in hysteresis between the unused state and the state after fifteen uses in the inventive bags is not more than 20%.

Abstract

La présente invention concerne des sacs si souples et si flexibles qu'ils sont capables de résister à des utilisations répétées sous effet intense de la chaleur et nutation, dans un séchoir rotatif, sans se briser ou se déchirer, et de réaliser dans ledit séchoir un mouvement de roulis sensiblement régulier. Ces dispositifs conviennent particulièrement dans le cadre de systèmes de traitement de tissus destinés au traitement d'un ou de plusieurs produits en tissu sous effet de la chaleur et nutation dans des sèche-linge rotatifs.
PCT/EP2000/012266 2000-01-20 2000-12-06 Sacs hautes performances resistants au sechoir WO2001053597A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US17705700P 2000-01-20 2000-01-20
US60/177,057 2000-01-20

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WO2001053597A1 true WO2001053597A1 (fr) 2001-07-26

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PCT/EP2000/012266 WO2001053597A1 (fr) 2000-01-20 2000-12-06 Sacs hautes performances resistants au sechoir
PCT/US2001/001507 WO2001053594A1 (fr) 2000-01-20 2001-01-17 Sacs haute performance pour sechoir offrant une securite d'utilisation

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PCT/US2001/001507 WO2001053594A1 (fr) 2000-01-20 2001-01-17 Sacs haute performance pour sechoir offrant une securite d'utilisation

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WO (2) WO2001053597A1 (fr)

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CN108951038A (zh) * 2018-07-11 2018-12-07 桂美苹 一种便携的户外快速干衣装置

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EP2907913B1 (fr) * 2014-02-12 2016-09-14 Sanflor S.r.l. Élément parfumant pour des vêtements pouvant être utilisé dans le nettoyage à sec, et méthode de nettoyage à sec correspondant
CN107287853A (zh) * 2017-07-21 2017-10-24 景雷 汽车毛绒坐垫快速清洁袋

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EP0429172A1 (fr) * 1989-10-16 1991-05-29 Unilever Plc Procédé de traitement du linge
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US4659496A (en) * 1986-01-31 1987-04-21 Amway Corporation Dispensing pouch containing premeasured laundering compositions
US5951716A (en) * 1995-06-22 1999-09-14 Reckitt & Colman Inc. Home dryer dry cleaning and freshening system employing dryer cleaning bag
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US4630312A (en) * 1981-02-20 1986-12-16 Milstein Elisabeth M L Laundry bag for nylon hosiery and the like
EP0429172A1 (fr) * 1989-10-16 1991-05-29 Unilever Plc Procédé de traitement du linge
US4974967A (en) * 1990-01-03 1990-12-04 Hiruma Tsuyoshi Laundry net
WO1997027354A1 (fr) * 1996-01-26 1997-07-31 The Procter & Gamble Company Sac servant a nettoyer a sec des tissus
US5746514A (en) * 1996-05-03 1998-05-05 O & P Company, Inc. Laundry bag and method of using same
WO1998004770A1 (fr) * 1996-07-30 1998-02-05 Kao Corporation Methode de lavage et ustensile auxiliaire de lavage

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CN108951038A (zh) * 2018-07-11 2018-12-07 桂美苹 一种便携的户外快速干衣装置
CN108951038B (zh) * 2018-07-11 2020-10-30 缪秀红 一种便携的户外快速干衣装置

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WO2001053594A1 (fr) 2001-07-26

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