WO2001068020A1 - Procede pour produire un materiau a bandage, et materiau a bandage ainsi obtenu - Google Patents

Procede pour produire un materiau a bandage, et materiau a bandage ainsi obtenu Download PDF

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Publication number
WO2001068020A1
WO2001068020A1 PCT/EP2001/001070 EP0101070W WO0168020A1 WO 2001068020 A1 WO2001068020 A1 WO 2001068020A1 EP 0101070 W EP0101070 W EP 0101070W WO 0168020 A1 WO0168020 A1 WO 0168020A1
Authority
WO
WIPO (PCT)
Prior art keywords
carrier
melt adhesive
hot
adhesive
coating
Prior art date
Application number
PCT/EP2001/001070
Other languages
German (de)
English (en)
Inventor
Stefan Arnold
Original Assignee
Paul Hartmann Ag
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 Paul Hartmann Ag filed Critical Paul Hartmann Ag
Priority to AU40571/01A priority Critical patent/AU4057101A/en
Publication of WO2001068020A1 publication Critical patent/WO2001068020A1/fr

Links

Classifications

    • 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
    • A61F13/02—Adhesive bandages or dressings
    • A61F13/0246—Adhesive bandages or dressings characterised by the skin-adhering layer
    • A61F13/025—Adhesive bandages or dressings characterised by the skin-adhering layer having a special distribution arrangement of the adhesive
    • 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
    • A61F13/02—Adhesive bandages or dressings
    • A61F13/0276—Apparatus or processes for manufacturing adhesive dressings or bandages

Definitions

  • the invention relates to a method for producing a dressing material and a self-adhesive dressing material, in particular a plaster, a fixation, compression or support bandage, the dressing material having a hot melt adhesive coating (hot melt adhesive) in which on at least one side of a porous sheet of flat material existing, longitudinally extending carrier, a hot melt adhesive is applied at least partially by means of an application head and the carrier is then cut into individual dressing material sections in the longitudinal and / or transverse direction.
  • Hot melt adhesive should be understood here to mean pressure sensitive hot melt adhesive. In the following, instead of the general term, one speaks of a plaster.
  • Patches currently available on the market are packaged on the one hand as rolls, the adhesive in the rolled-up state being in contact with the plaster upper side of the winding underneath, and on the other hand in the form of conventional plaster strips with wound dressings, which protect the surface of the adhesive thereon Protective strips made of silicone paper are arranged, which are peeled off before use.
  • solvent-based adhesives has the disadvantage that after the adhesive has been applied, the solvent has to be evaporated from it and recovered.
  • there are health concerns with solvent-based adhesives due to secondary evaporation. Patches with hot melt adhesive application are e.g. B. is known from EP 0 826 380 A2.
  • the hotmelt adhesive itself is not breathable, no full-surface adhesive application is generally provided, but the hotmelt adhesive is applied in areas.
  • the order can e.g. B. strip-shaped in the longitudinal direction of the patch, but also in the form of transverse strips, punctiform, grid-shaped or in the form of a porous application, so that breathability is ensured.
  • EP 0 689 408 B1 discloses a grid-shaped adhesive application.
  • the pressure sensitive adhesive is applied by means of a printing process.
  • the printing technology has the following disadvantages: The gravure printing process is complex and relatively complicated, since there are problems in transferring the adhesive from the engraving onto the carrier.
  • the screen printing process only enables a dome-shaped adhesive application, which has the disadvantage of having only a slight contact with the skin.
  • the domes only come into contact with the skin surface with their outer curvature, so that only a small adhesive surface is achieved in relation to the amount of adhesive.
  • the invention solves this problem by a method for producing a plaster, in which the hot-melt adhesive is applied in the form of a strip in the longitudinal direction of the carrier and the application head performs an oscillatory relative movement with respect to the carrier during the coating, as a result of which the longitudinal adhesive strips have a wave shape. That is, the application head or the carrier is moved or vibrated relative to the other part.
  • Such a plaster which can be used both as a fixing plaster and as a plaster strip and the carrier material of which can consist of porous, air-permeable material, in particular of fibrous material, for example fabric, offers the advantage of a certain permeability to air and water vapor in the uncoated areas, ie in areas where there is no hot melt adhesive application.
  • the application of the hot melt adhesive in strips has the advantage over a raster-shaped application of the hot melt adhesive that better ventilation of the skin beneath the patch is possible.
  • the spaces between the hot melt adhesive serve as "air channels", so to speak.
  • the hot melt adhesive is applied in a wave form running in the longitudinal direction of the carrier. That is, the hot-melt adhesive is applied to the carrier in a wave shape in parallel, not overlapping wavy lines.
  • the wave-shaped application has the advantage that a cut lengthways through the plaster is never made completely or over a longer distance in uncoated tissue, but the squeezing knife always intervenes alternately in coated and uncoated areas. This prevents unraveling of the cutting edges and in particular blocking of the crushing knife by loosened fibers.
  • the method according to the present invention can be a contact coating method, as is particularly favorable for applying a hot melt adhesive.
  • the carrier is passed over a coating roller in the area of the application head, the application head releasing hot melt adhesive through corresponding openings (nozzles) and applying this to the carrier.
  • the application head In order to ensure the oscillatory relative movement between the carrier and the application head, provision can initially be made for the application head to vibrate. Alternatively, the coating roller can be vibrated.
  • a particularly advantageous solution for realizing the relative movement is to provide an oscillation of the tissue, since this is in contrast to an oscillatory one Movement of the application head and the coating roller only have to move parts with a low weight and therefore no large mass forces arise.
  • the fabric is passed directly in front of the coating head (application head) over two non-driven wrapping rollers, which perform an oscillatory movement.
  • the movement is achieved by an eccentric drive and crank rods.
  • a counterweight can be driven by the eccentric shaft of the eccentric, which counteracts a large part of the mass forces.
  • the relative movement takes place at a frequency of approximately 10 Hz.
  • a coating width of approx. 1000 mm and a machine speed of approx. 30 m / min with which the carrier is transported this generates an amplitude of approx. 5 mm and a wavelength of approx. 50 mm per hot melt adhesive track or strip.
  • the amplitude can preferably be varied between 2 and 20 mm and the wavelength between 15 and 200 mm.
  • the strips, ie the hot melt adhesive traces can have a width of preferably 0.5 to 2 mm each, the distance between the individual strips being preferably 0.3 to 3 mm.
  • the invention comprises dressing material, in particular a plaster, in particular produced by the method according to the invention, with a web section made of a porous material which is on at least one side is partially coated with hot melt adhesive, wherein the hot melt adhesive is preferably arranged in the transverse or longitudinal direction of the web section in undulating adhesive traces.
  • the adhesive traces or strips formed by the earth therefore run essentially parallel to one another and preferably do not touch one another.
  • the hot melt adhesive application on the finished plaster can run in the longitudinal or transverse direction of the path section of the plaster, but the lines of hot melt adhesive always run in the machine longitudinal direction, i.e. in the direction of the carrier from which the individual plasters consisting of the path section with the respective hot melt adhesive application by longitudinal or Cross sections were assembled.
  • such a strip application has advantages with regard to the detachability of the plaster after use from the skin.
  • Patches are usually removed from the skin by removing one corner of the patch and pulling it off in one go. Depending on the adhesive strength of the hot melt adhesive, this detachment is more or less painful. Due to the wavy coating, d. H. the wave-shaped course of the hot-melt adhesive strips, the plaster is removed particularly gently, since the hot-melt adhesive application has no sharp changes in direction.
  • the plaster can in particular have wavy strips of hot melt adhesive with an amplitude of 2 to 20 mm, in particular 5 mm, and a wavelength of 15 mm to 200 mm, in particular approximately 50 mm.
  • Figure 1 is a schematic representation of the coating process
  • FIG. 2 a plaster according to the invention
  • FIG. 3 a plaster roll on which the carrier material cut in the longitudinal direction, which is made up into individual plasters, is wound up;
  • Figure 5 another patch.
  • FIG. 1 shows a coating system 10 which comprises a coating roller 12 and an application or coating head 14.
  • the carrier 16 which consists of air-permeable fabric, is guided over the coating roller 12, the carrier 16 being coated at the same time by means of hot melt adhesive emerging from the application head 14.
  • the coating process is a contact coating.
  • two wrapping rollers 18 and 20 which are not driven.
  • the two wrapping rollers 18 and 20 are set into an oscillating movement by means of an eccentric which is connected to the wrapping rollers 18, 20 via crank rods (not shown) and the oscillation is opened the carrier 16, which consists of tissue, transferred.
  • the oscillation of the carrier 16 continues in the latter, so that an oscillating relative movement occurs between the carrier 16 and the application head 14. That is, the carrier 16 swings back and forth in the horizontal direction in front of the application head 14.
  • the hot melt adhesive that emerges from the application head 14 is thereby applied to the carrier 16 in a wave shape.
  • the hot melt adhesive is applied through several openings in the application head 14, so that a strip-shaped application is produced, the strips being arranged parallel to one another.
  • the hotmelt adhesive lines do not overlap or touch.
  • the eccentric shaft In order to prevent the oscillating movement from being transmitted to the coating equipment, that is to say the coating roller 12 or the application head 14, or to the rest of the machine frame, the eccentric shaft simultaneously drives a counterweight, not shown, which compensates for the mass forces which arise.
  • the carrier 16 After coating, the carrier 16 is cut into individual plasters in the longitudinal and / or transverse direction. The cut is made by the waves, so that at least a single wave line is cut. As a result, the crushing knife is always cut alternately in coated and non-coated carrier material 16, which avoids fraying of the edge region with the known disadvantages with regard to the plaster shape, dust formation and blocking of the squeezing knife by fibers.
  • the oscillation frequency is approximately 10 Hz, which at a feed speed of the carrier 16 of approximately 30 m / min. and a carrier width of approximately 1000 mm leads to wavy strips with an amplitude of approximately 5 mm and a wavelength of approximately 50 mm. ⁇
  • the plasters 30 according to FIGS. 4a and 4b differ in their amplitude and in their wavelength of the wavy hot-melt adhesive strips.
  • FIG. 5 shows a plaster with a continuous wound covering 44, which also has perforations 46.
  • the longitudinal direction of the carrier material 16 from which the plaster 30 was cut is also shown by an arrow.
  • the wound dressing 44 extends over the entire length of the plaster 30.
  • the adhesive track or line here has a width of approximately 1 mm, just like the free spaces between the adhesive tracks have a width of approximately 0.5 mm.

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Dermatology (AREA)
  • Manufacturing & Machinery (AREA)
  • Medicinal Preparation (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

L'invention concerne un procédé pour produire un matériau à bandage, notamment un pansement (30), un bandage inamovible, un bandage compressif ou un bandage de maintien, au moyen d'un revêtement thermofusible. Ce procédé consiste à appliquer un adhésif thermofusible (34), au moins partiellement au moyen d'une tête d'application (14), sur au moins un côté d'un support (16) constitué d'une bande de matériau plat poreux, s'étendant dans le sens longitudinal, puis à découper le support, dans le sens longitudinal et/ou transversal, en segments individuels de matériau à bandage. Selon l'invention, l'adhésif thermofusible est appliqué sous forme de bande dans le sens longitudinal du support (16), et la tête d'application (14) exécute un mouvement oscillatoire par rapport au support, pendant l'application, ce qui confère une forme ondulée aux bandes d'adhésif thermofusible.
PCT/EP2001/001070 2000-03-15 2001-02-01 Procede pour produire un materiau a bandage, et materiau a bandage ainsi obtenu WO2001068020A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU40571/01A AU4057101A (en) 2000-03-15 2001-02-01 Method for production of a dressing material and dressing material

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10012582A DE10012582C2 (de) 2000-03-15 2000-03-15 Verfahren zum Herstellen eines Verbandmaterials und Verbandmaterial
DE10012582.4 2000-03-15

Publications (1)

Publication Number Publication Date
WO2001068020A1 true WO2001068020A1 (fr) 2001-09-20

Family

ID=7634795

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2001/001070 WO2001068020A1 (fr) 2000-03-15 2001-02-01 Procede pour produire un materiau a bandage, et materiau a bandage ainsi obtenu

Country Status (3)

Country Link
AU (1) AU4057101A (fr)
DE (1) DE10012582C2 (fr)
WO (1) WO2001068020A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9393158B2 (en) 2011-08-25 2016-07-19 Brightwake Limited Non-adherent wound dressing
US9486553B2 (en) 2009-07-16 2016-11-08 Brightwake Limited Method
USD795442S1 (en) 2015-04-20 2017-08-22 Spidertech Inc. Release liner with adhesive wound closure strip(s) thereon
US10086107B2 (en) 2006-04-03 2018-10-02 Brightwake Limited Adhesive laminates and applications thereof
CN110974541A (zh) * 2019-11-22 2020-04-10 中国乐凯集团有限公司 纹路成型用梳针器、纹路成型装置及制备医疗贴布的方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009050031B3 (de) * 2009-10-21 2011-03-03 Hermann Christiansen Material für ein Produkt zur Kompression von Körperteilen sowie ein medizinischer Verband und ein Kleidungsstück aus diesem Material
DE102011081818A1 (de) 2011-08-30 2013-02-28 Beiersdorf Ag Wirkstoffhaltige Hautauflagen

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1155492A (fr) * 1956-06-07 1958-05-05 Smith & Nephew Perfectionnements aux bandes et feuilles adhésives et similaires
GB807276A (en) * 1956-01-09 1959-01-14 Edward Taylor Ltd Improvements in or relating to surgical adhesive dressings bandages and the like
GB987275A (en) * 1961-10-06 1965-03-24 Johnson & Johnson Sheet material
FR2609889A1 (fr) * 1987-01-26 1988-07-29 Thuasne & Cie Procede d'enduction d'un produit textile en bande
US5051259A (en) * 1987-12-15 1991-09-24 Coloplast A/S Skin barrier product with discontinuous adhesive layer
US5861348A (en) * 1996-07-23 1999-01-19 Kinesio Co., Ltd. Body-adhesive tape

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5662991A (en) * 1994-12-23 1997-09-02 Gentex Corporation Laminated biocidal fabric

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB807276A (en) * 1956-01-09 1959-01-14 Edward Taylor Ltd Improvements in or relating to surgical adhesive dressings bandages and the like
FR1155492A (fr) * 1956-06-07 1958-05-05 Smith & Nephew Perfectionnements aux bandes et feuilles adhésives et similaires
GB987275A (en) * 1961-10-06 1965-03-24 Johnson & Johnson Sheet material
FR2609889A1 (fr) * 1987-01-26 1988-07-29 Thuasne & Cie Procede d'enduction d'un produit textile en bande
US5051259A (en) * 1987-12-15 1991-09-24 Coloplast A/S Skin barrier product with discontinuous adhesive layer
US5861348A (en) * 1996-07-23 1999-01-19 Kinesio Co., Ltd. Body-adhesive tape

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10086107B2 (en) 2006-04-03 2018-10-02 Brightwake Limited Adhesive laminates and applications thereof
US9486553B2 (en) 2009-07-16 2016-11-08 Brightwake Limited Method
US9393158B2 (en) 2011-08-25 2016-07-19 Brightwake Limited Non-adherent wound dressing
USD795442S1 (en) 2015-04-20 2017-08-22 Spidertech Inc. Release liner with adhesive wound closure strip(s) thereon
CN110974541A (zh) * 2019-11-22 2020-04-10 中国乐凯集团有限公司 纹路成型用梳针器、纹路成型装置及制备医疗贴布的方法

Also Published As

Publication number Publication date
AU4057101A (en) 2001-09-24
DE10012582C2 (de) 2003-10-30
DE10012582A1 (de) 2001-09-27

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