Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C66/00—General aspects of processes or apparatus for joining preformed parts
  • B29C66/80—General aspects of machine operations or constructions and parts thereof
  • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
  • B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
  • B29C66/8341—Roller, cylinder or drum types; Band or belt types; Ball types
  • B29C66/83411—Roller, cylinder or drum types
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
  • A61F13/00—Bandages or dressings; Absorbent pads
  • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
  • A61F13/15577—Apparatus or processes for manufacturing
  • A61F13/15699—Forming webs by bringing together several webs, e.g. by laminating or folding several webs, with or without additional treatment of the webs
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
  • A61F13/00—Bandages or dressings; Absorbent pads
  • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
  • A61F13/36—Surgical swabs, e.g. for absorbency or packing body cavities during surgery
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
  • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
  • B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
  • B29C65/083—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations using a rotary sonotrode or a rotary anvil
  • B29C65/086—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations using a rotary sonotrode or a rotary anvil using a rotary anvil
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
  • B29C65/74—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area
  • B29C65/743—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using the same tool for both joining and severing, said tool being monobloc or formed by several parts mounted together and forming a monobloc
  • B29C65/7443—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using the same tool for both joining and severing, said tool being monobloc or formed by several parts mounted together and forming a monobloc by means of ultrasonic vibrations
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C66/00—General aspects of processes or apparatus for joining preformed parts
  • B29C66/01—General aspects dealing with the joint area or with the area to be joined
  • B29C66/05—Particular design of joint configurations
  • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
  • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
  • B29C66/112—Single lapped joints
  • B29C66/1122—Single lap to lap joints, i.e. overlap joints
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C66/00—General aspects of processes or apparatus for joining preformed parts
  • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
  • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
  • B29C66/43—Joining a relatively small portion of the surface of said articles
  • B29C66/438—Joining sheets for making hollow-walled, channelled structures or multi-tubular articles
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C66/00—General aspects of processes or apparatus for joining preformed parts
  • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
  • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
  • B29C66/45—Joining of substantially the whole surface of the articles
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C66/00—General aspects of processes or apparatus for joining preformed parts
  • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
  • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
  • B29C66/729—Textile or other fibrous material made from plastics
  • B29C66/7294—Non woven mats, e.g. felt
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C66/00—General aspects of processes or apparatus for joining preformed parts
  • B29C66/80—General aspects of machine operations or constructions and parts thereof
  • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
  • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
  • B29C66/8145—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps
  • B29C66/81463—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps comprising a plurality of single pressing elements, e.g. a plurality of sonotrodes, or comprising a plurality of single counter-pressing elements, e.g. a plurality of anvils, said plurality of said single elements being suitable for making a single joint
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C66/00—General aspects of processes or apparatus for joining preformed parts
  • B29C66/80—General aspects of machine operations or constructions and parts thereof
  • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
  • B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
  • B29C66/8341—Roller, cylinder or drum types; Band or belt types; Ball types
  • B29C66/83411—Roller, cylinder or drum types
  • B29C66/83415—Roller, cylinder or drum types the contact angle between said rollers, cylinders or drums and said parts to be joined being a non-zero angle
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C66/00—General aspects of processes or apparatus for joining preformed parts
  • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
  • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C66/00—General aspects of processes or apparatus for joining preformed parts
  • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
  • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
  • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
  • B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
  • B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
  • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
  • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
  • B29K2105/08—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
  • B29K2105/0854—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns in the form of a non-woven mat

Definitions

• An absorbent article such as an absorbent towel. surgical towel or like article
• the present invention relates to an absorbent article for absorbing blood and other wound fluids, such as an absorbent towel or a surgical towel, said article including a strap by means of which it can be hung.
• Surgical towels so-called abdominal towels, are used for many different purposes in operative surgery, such as to prevent blood flowing into the operation wound in the case of abdominal operations for instance, preventing leakage of blood past the operation wound, to mop-up blood that has leaked past the wound, and so on.
• Towels of this kind shall thus be effectively absorbent, easy to bring to a desired shape and readily handled in general. Since a large number of operatio ⁇ nal towels, said term also including compresses, pads, wads and the like, are used in operative surgery, they should also be simple and cheap to manufacture.
• Surgical towels are also often provided with straps which facilitate handling of used towels.
• used towels need to be counted in order to ensure that no towels have been left in the surgical wound, before the wound is sewn together.
• These straps also constitute auxiliary devices to which metal plates or surgical instruments can be secured, which are normally left to hang from the surgical wound, so as to avoid towels being left in a surgical wound upon completion of surgery.
• These known straps are comprised of separate pieces which are normally sewn onto the surgical towel. This makes manufacture of surgical towels that are provided with such hanging straps expensive.
• the object of the present invention is primarily to provide a surgical towel which is provided with a hanging strap and which can be manufactured simply and inexpensively.
• the article is rectangular and the strap extends parallel to one long side of the article and projects out therefrom.
• the strap is cut-out from one long side of the article and includes an elongated slot or slit which extends parallel to said long side along a greater part of the strap that is cut-out from said article.
• the article includes two identical pieces of material each of which comprises an absorbent first layer, which is permanently wrinkled over the whole of its surface, and a smooth second layer of thermo ⁇ plastic material which is fastened to the first layer, wherein the two pieces of material are laid one upon the other with the respective smooth layers facing one another, and are joined together along the edges of said pieces.
• FIGS 2-4 illustrate different ways of cutting-out surgical towels
• Figure 5 is a perspective view of an inventive surgical towel
• Figure 6 is a sectional view taken on the line VI-VI in Figure
• Figure 1 illustrates a surgical towel manufacturing plant which includes two identical plant arrangements 1, 2 which function to produce a respective web of material 3 and 4.
• the webs are comprised of a wrinkled, absorbent first layer 5 and 6 respectively, which are fastened to a respective smooth second layer 7 and 8.
• the first layers 5, 6 are comprised of two material layers 9, 10 and 11, 12 respectively.
• the plant also includes means for combining the webs 3, 4 with their smooth layers 7 and 8 facing one another. These means are comprised of feed rollers 13, 14, which together with feed rollers 15, 16 advance the combined webs 3, 4 through a device 17 which functions to join the webs together and to cut surgical towels therefrom. The surgical towels cut from the webs are then passed to a station (not shown) on a conveyer 19 for instance, where the towels are sterile-packaged.
• FIGS 2-4 illustrate from above different ways in which surgical towels 18A-18C are cut from the webs 3, 4 in the device 17.
• Figure 2 illustrates a pattern of cutting lines 20A with the aid of which rectangular surgical towels 18A with rounded corners are cut from the webs 3, 4. Also shown is a cutting line 21A with the aid of which hanging straps 21A are cut from the webs 3, 4. The straps are provided with a slot 22A so as to enable them to be hung on a hook or like device.
• FIG 3 illustrate a variant of an inventive surgical towel, in which a strip 24B of textile material, non-woven material, or plastic material is placed between the edges of the towel cut-outs 18B that extend in the machine direction. These strips are conveniently placed between said edges when bringing the webs 3, 4 together, with the aid of the rollers 13, 14.
• the cutting lines 20B also define in this case a generally rectangular surgical towel 18B including a hanging strap 21B which constitutes an extension of the towel 18B edge-parts extending in the machine direction.
• a slit 22B is cut from respective hanging straps 21B, and the strip 24B reinforces the strap. It will be understood that a strengthen- ing strip may also be laid in the strap 21A of the surgical towel 18A shown i Figure 2.
• Figure 4 shows another example of how a hanging strap 21C provided with a slit 22C can be cut from the surgical towels 18C cut from the webs 3, 4, along cutting lines 20C.
• this example also differs from the earlier descri ⁇ bed examples by virtue of breaks or interruptions 23C in the strap cutting line 20C1 facing towards the remainder of the towel.
• the straps 21C will remain appended to the remainder of an associated surgical towel after cutting the towels 18C from the webs. This gives the user the choice of allowing the strap to remain attached to the towel, or of tearing-off the strap, whichever is desired.
• the surgical towels 18A and 18B can also be provided with detachable straps in a similar way.
• the device 17 is preferably comprised of an ultrasound welding device comprising an anvil roller 25 which includes radially and outwardly projecting anvils configured so that welding together of the webs 3, 4 and cutting of the surgical towels
• a device 17 of this construction will enable the webs 3, 4 to be joined together and surgical towels cut therefrom in a particularly simple fashion, with the aid of only a few components. Furthermore, a device 17 constructed in this manner will result in soft joins in the product cut-out.
• fastening points as used here is also meant to include complete areas that are joined in a punctiform fashion, such as elongated connecting regions for instance, although the "fastening point” shall have a small extension in relation to the dimensions of the finished article.
• the layers 5, 6 are comprised of two mutually joined layers 9, 10 and 11, 12 respectively, which are taken from storage reels 28, 29.
• the layers 7, 8 are taken from storage reels 30.
• the invention thus enables an article to be produced continu ⁇ ously from a smooth material wound on storage reels in a simple and cost effective manner.
• FIGs 5 and 6 illustrate a surgical towel 18B which has been manufactured by means of the aforedescribed method and cut-out in accordance with the pattern shown in Figure 3.
• the surgical towel 18B thus comprises two identical pieces 3', 4" of the three-layer webs 3, 4 having two wrinkled layers 9, 10 and 11, 12 respectively and a smooth layer 7 and 8 respective ⁇ ly.
• the smooth layers face one another and the three-layer pieces 3* * , 4-' are joined together around their peripheral edges and on both sides of the slit 22B.
• the hanging strap 21B is reinforced with a strip 24B, for instance a plastic strip, which extends along that edge part of the towel 18B of which the strap is an extension.
• the smooth layers 7 and 8 shall consist of a weldable materi ⁇ al, and are preferably comprised of non-woven polypropylene fibres. In addition to enabling the webs 3, 4 to be welded together, the layers are also intended to take-up tensile forces in the material pieces 3', 4', so as to prevent the wrinkles in the layers 9, 10 and 11, 12 respectively from being smoothed-out as a result of such tensile forces.
• the layers 7 and 8 have a surface weight of 10-20 g/m 2.
• the layers 10 and 12 shall be absorbent and are preferably comprised of a nonwoven material which includes absorbent fibres, for instance viscose fibres. These layers may advan ⁇ tageously comprise spunlace material.
• the layers may also include non-absorbent fibres, for instance polyester fibres, so as to impart to the layers sufficient strength to enable them to withstand the wrinkling and handling processes to which it is subjected. The percentage of absorbent fibres present should not be less than 50%.
• the layers 10 and 12 have a surface weight of 20-100 g/m 2. In addition to absorbing liquid the layers 10 and 12 also have the purpose of quickly dispersing absorbed fluid and to impart a relatively high bulk to the composite surgical towel.
• the towel has a thickness of between 3-10 ram, said thickness primarily depending on the size of the wrinkles.
• the layers 9 and 11 shall also be made of a weldable material, such as a nonwoven material, for instance comprised of polypropylene fibres. These layers must also be liquid-permeable and the fibres in the layers 9, 11 may be treated with an agent which renders them hydrophilic, so as to facilitate the liquid absorbency of the layers 10 and 12. These layers also form the outer surface layers of the surgical towel and shall therefore have very little fuzz, i.e. the fibres in the layers 9 and 12 shall be well bonded to one another so that only some or a very few fibres will loosen from the layers when the towel is used. Accordingly, the layers 9 and 11 may conveniently be comprised of spun-bonded nonwoven material. The surfaces 9 and 11 have a surface weight
• the described surgical towels are less expensive to produce than multi-layer surgical towels made of textile or nonwoven material that must be sewn and twisted or hemmed, in particu ⁇ lar when a separate hanging belt shall be sewn onto the towels.
• the inventive towels also have functional advantages over known surgical towels made of textile material or non- woven material.
• One advantage is that the towels can be given well-bonded outer surface layers, which provides a surgical towel which has very little fuzz or "linters".
• Another advan ⁇ tage is that the wrinkles in the two outermost layers provide greater friction against contiguous material when using the towel than will a smooth nonwoven layer, which enables smooth organs to be held firmly more readily by the surgical towel and facilitates "mopping-up" of particularly highly viscous liquids.
• Wrinkling of the surfaces also gives the material a greater bulk, which enables the material to be gripped and handled more easily.
• Another advantage afforded by the de ⁇ scribed surgical towel over towels made of textile material is that the inventive towel will not collapse or lose its stability in a wet state, as will be gauze towel or pad.
• the invention can also be applied with articles that comprise only one or more smooth layers.
• the inventive method can be with premanufac- tured webs which include a smooth layer and one or more wrinkled layers and rolled onto storage reels.
• the web combining and web cutting features of the method may be effected in two consecutive steps instead of in one single step as in the described embodiment. If it is wished to avoid the wastage occasioned by the edge parts that remain on the web when cutting in accordance with the patterns illustrated in Figures 2-4, the mutually combined webs can be passed through the web combining and web cutting device with the aid of suitable conveyers. An absorbent layer of fluff pulp for instance can be inserted between the webs prior to bringing said webs together.
• the invention is therefore limited solely by the content of the following claims.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Health & Medical Sciences (AREA)
• General Health & Medical Sciences (AREA)
• Life Sciences & Earth Sciences (AREA)
• Veterinary Medicine (AREA)
• Epidemiology (AREA)
• Biomedical Technology (AREA)
• Heart & Thoracic Surgery (AREA)
• Vascular Medicine (AREA)
• Public Health (AREA)
• Animal Behavior & Ethology (AREA)
• Textile Engineering (AREA)
• Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
• Surgery (AREA)
• Manufacturing & Machinery (AREA)
• Absorbent Articles And Supports Therefor (AREA)
• Materials For Medical Uses (AREA)
• Nonwoven Fabrics (AREA)

Applications Claiming Priority (4)

Publications (1)

Family

ID=26661783

Family Applications (1)

Country Status (2)

Cited By (2)

Citations (1)

• 1993
  • 1993-12-21 SE SE9304229A patent/SE9304229L/sv not_active Application Discontinuation
• 1994
  • 1994-06-22 WO PCT/SE1994/000625 patent/WO1995000098A1/en active Application Filing

Patent Citations (1)

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