WO2006109093A1 - Ruban-cache - Google Patents

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Publication number
WO2006109093A1
WO2006109093A1 PCT/GB2006/001421 GB2006001421W WO2006109093A1 WO 2006109093 A1 WO2006109093 A1 WO 2006109093A1 GB 2006001421 W GB2006001421 W GB 2006001421W WO 2006109093 A1 WO2006109093 A1 WO 2006109093A1
Authority
WO
WIPO (PCT)
Prior art keywords
adhesive
tape
strip
masking tape
foam
Prior art date
Application number
PCT/GB2006/001421
Other languages
English (en)
Inventor
Oliver Jevon
Original Assignee
Jevtec Limited
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
Priority claimed from GBGB0507643.5A external-priority patent/GB0507643D0/en
Application filed by Jevtec Limited filed Critical Jevtec Limited
Publication of WO2006109093A1 publication Critical patent/WO2006109093A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/16—Arrangements for controlling delivery; Arrangements for controlling the spray area for controlling the spray area
    • B05B12/20—Masking elements, i.e. elements defining uncoated areas on an object to be coated
    • B05B12/24—Masking elements, i.e. elements defining uncoated areas on an object to be coated made at least partly of flexible material, e.g. sheets of paper or fabric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/16—Arrangements for controlling delivery; Arrangements for controlling the spray area for controlling the spray area
    • B05B12/20—Masking elements, i.e. elements defining uncoated areas on an object to be coated
    • B05B12/29—Masking elements, i.e. elements defining uncoated areas on an object to be coated with adjustable size
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/20—Adhesives in the form of films or foils characterised by their carriers
    • C09J7/22—Plastics; Metallised plastics
    • C09J7/26—Porous or cellular plastics
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2203/00—Applications of adhesives in processes or use of adhesives in the form of films or foils
    • C09J2203/31—Applications of adhesives in processes or use of adhesives in the form of films or foils as a masking tape for painting
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2400/00—Presence of inorganic and organic materials
    • C09J2400/20—Presence of organic materials
    • C09J2400/24—Presence of a foam
    • C09J2400/243—Presence of a foam in the substrate
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2400/00—Presence of inorganic and organic materials
    • C09J2400/20—Presence of organic materials
    • C09J2400/28—Presence of paper
    • C09J2400/283—Presence of paper in the substrate

Definitions

  • This invention relates to masking tape.
  • WO02068556A discloses foam masking tape made from an elongate strip of flat foam attached to adhesive strip material, used to mask openings, such as doors, of automobiles when refinishing, so as to prevent primer, paint and lacquer penetrating through the gap between the door or other moving member, and the surround, into the interior of the vehicle.
  • Such a tape was intended to be a substitute for conventional masking tape such as is described, for example, in EP0356510, Silvestre, and marketed by 3M, which is applied to the surround, and also for a tape as described in GB2327052, applied to the door or other moving member.
  • the 3M tapes were made from thick foam sheet, which is divided into strips by crush cutters which cold- weld the edges, so that a tape can be pulled away from the sheet with a roundish cross-section. Hot-melt adhesive stripes are applied to the tapes for attachment to the surface to be treated,
  • the GB2327052 tape was originally manufactured by milling a bullet-shaped cross- section, but that method of manufacture has now been superseded by one in which a thin foam ribbon s folded over using a spout or folding die arrangement to bring the edges together, where they are welded, using a hot air jet, to the face of the foam, a hot-melt adhesive strip then being applied to the foam strip.
  • a simple masking tape that comprises simply a strip of foam adhered to a strip of adhesive material, that could be used to mask a door opening by attaching it to the inside rim of the door, closing the door so as to leave some of the foam protruding from the gap between door and door surround, and pushing the protruding foam into the gap, or that could be used to produce a 'feathered' edge when painting a panel by attaching it so that the foam stood at an angle out from the panel surface
  • the present invention provides tapes which can be made from foam strip and adhesive strip, such as ordinary adhesive masking tape, or similar tapes made exclusively from foam, that do not suffer the above noted disadvantages.
  • the invention comprises, in one aspect, a masking having an adhesive face and at least one non-adhesive foam edge portion that, when the adhesive face is applied to a surface, masks the adhesive and forms a cusp into which paint can be sprayed, the foam absorbing excess paint to leave a smooth edge to the applied paint.
  • the masking tape may have a non-adhesive edge portion either side.
  • the masking tape may comprise an adhesive strip and a foam strip of greater width than the foam strip which is wrapped around the adhesive strip so that its edges are adhered to the edges of the adhesive strip, leaving a width of adhesive exposed for attachment rto a surface, the wrapped edges of the foam strip forming the non-adhesive edge portions.
  • the masking tape may comprise, instead, an adhesive strip and a foam edge portion adhered by the adhesive of the strip to at least one of the edges of the strip.
  • the adhesive strip may comprise a paper masking tape - the sort ordinarily used for masking paintwork generally.
  • the adhesive strip may, however, comprise a foam strip with an adhesive face and at least one non-adhesive edge portion, which may be profiled, as by crush welding, to form the cusp.
  • Crush welding otherwise known as cold welding or crush cutting, involves running the foam between rotary blades that apply sufficient pressure to heat the foam to melting point and weld it, defining a pinch formation - the technique is described in EP0384626.
  • the foam strip can be joined by a tearable crush weld seam to another masking tape section, and may comprise a removable foam section that can be removed by tearing along a seam to leave a lesser absorbent foam edge portion.
  • the removable section can be attached by a crush weld seam, or may be attached adhesively.
  • the tape may be laterally flexible, that is to say, when laid flat on a surface, it can be bent into an arc, without any undue folding on the inner edge of the arc.
  • the tape stretchable and/or malleable can be made so that the outer edge of the arc can be stretched while the inner edge remains the same length and so does not need to fold, or so that the inner edge folds, but the folds can be pressed out.
  • the tape may be capable of being bent around an arc the inner edge of which has a radius equal to the width of the tape.
  • the masking tape may have an adhesive strip about 20mm wide, with at least one absorbent foam edge portion extending about 2.5mm beyond the adhesive strip.
  • a foam strip about lmm thick and 25mm wide may be wrapped around a 20mm adhesive strip so that about 2.5mm of foam are adhered to the edges of the adhesive strip, leaving about 15mm of adhesive exposed.
  • the invention also comprises a method for making a masking tape, comprising applying to at least one edge of an adhesive tape, by its adhesive, an absorbent foam edge portion extending beyond the edge of the adhesive tape. Such an edge portion may be applied to both edges of the adhesive tape.
  • the method may comprise applying a strip of flat absorbent foam, wider than the adhesive tape, by its edges to the edges of the tape, the foam being taken round the back of the tape. This may be done by running the adhesive tape together with the flat absorbent foam, strip through a folder which folds over the edges of the strip around the tape and presses them against the adhesive surface thereof.
  • the adhesive tape may be a paper masking tape.
  • the invention also comprises a method for making a masking tape, comprising effecting a crush welding operation on a flat foam sheet to define a flat tape with welded edges and applying adhesive to one face of the strip leaving at least one adhesive-free edge portion. Two adhesive-free edge portions may, of course, be left.
  • Parallel crush welding operations may be effected to define a plurality of tapes on a sheet, and the crush welding operations may not sever the sheet, but provide tear lines by which tapes may be separated from the sheet.
  • Parallel crush welding operations may define a flat tape with at least one welded edge and a tear line by which a part of the edge portion can be detached.
  • Parallel crush welding operations may be effected across a sheet to define a plurality of tapes each with tear lines adjacent the welded edge, the tapes tearing from the sheet preferentially along the welded edges.
  • the invention also comprises a method for masking a surface so that paint or other substances can be sprayed up to a boundary, comprising applying a masking tape according to the invention set out above, or made by an inventive method as set out above, to the surface to define the boundary. It is found that such a tape can be used to mask a panel for painting up to an edge where the paint has to blend in with existing paintwork.
  • the tape can be applied with precision to the workface, and the adhesive is never exposed, the foam completely absorbing any excess paint or lacquer so that no build up occurs to dry as a hard edge.
  • the invention also comprises a method for masking gapped openings, such as doors on automobiles, comprising applying, by its adhesive near one edge, a masking tape according to the invention set out above, or made by an inventive method as set out above, with the opening closed, to one side of the gap and pushing the reminder of the tape into the gap.
  • Figure 1 is a cross section of a first embodiment
  • Figure 2 is a section through a panel masked for painting up to a line where the paint has to blend in with existing paintwork, masked by the tape of Figure 1;
  • Figure 3 is a perspective view showing the application of the tape of Figure 1 to a gap, for masking the gap and a panel on one side of the gap:
  • Figure 4 is a view like Figure 1, showing the tape after adjustment;
  • Figure 5 is a cross section of a second embodiment of masking tape
  • Figure 6 is a section like Figure 2 showing the tape of Figure 5 applied to a panel
  • Figure 7 is a section through another embodiment of masking tape
  • Figure 8 is a section through yet another embodiment of masking tape
  • Figure 9 is a diagrammatic illustration of a method for making one embodiment of masking tape according to the invention.
  • Figure 10 is a diagrammatic illustration of a method of making another embodiment of tape according to the invention.
  • Figure 11 is a face-on view of a laterally flexible tape applied to a surface in an arc of a curve.
  • Figures 1 to 4 of the drawings illustrate a masking tape 11 comprising an adhesive strip 12 and a foam strip 13 of greater width that the adhesive strip 12 which is wrapped around the adhesive strip 12 so that its edges 13a, 13b are adhered to the edges 12a, 12b of the adhesive strip 12, leaving a width of adhesive 14 exposed.
  • the tape 11 has an adhesive strip 12 about 20mm wide, with a foam strip 13 typically lmm thick and 25mm wide wrapped around so that about 2.5mm of foam are adhered to the edges of the adhesive strip 12, leaving aboutl5mm of adhesive 14 exposed.
  • the masking tape 11 can be used to mask a panel 21 for painting up to an edge where the paint has to blend in with existing paintwork.
  • the tape 11 can be applied with precision to the workface, as it is very easy to handle. Because the foam forms a cusp 22, and the adhesive 14 on the tape 12 is never exposed, the foam completely absorbs any excess paint or lacquer so that no build occurs to dry as a hard edge.
  • Figures 3 and 4 illustrate application of the tape of Figure 1 to mask a gap 31 between an openable member, such as a door 32 of an automobile, and its surround 33. As shown in
  • the tape 11 can be manufactured quite easily, as seen in Figure 9, simply by running the adhesive tape 12 and the foam strip 13 together through a folding die 91 and pressing down, using nip roller means 92, on the edges.
  • the troublesome application of hot melt adhesive is avoided, which can give rise to quality problems resulting in loss of adhesion during use. Adhesion is assured, relying on the tried and trusted properties of conventional paper masking tape, and the fact the paper masking tape is not extensible, so the tape, once applied, does not tend to lift itself off the surface.
  • Figure 5 illustrates another form of tape 11 5 in which foam 51 is applied as thin strips to the adhesive coated face of an adhesive strip 12. This is very similar to the embodiment of Figure 1, without the foam wrapping around the back of the adhesive tape 12.
  • Figure 6 shows how this is applied to a surface, with the foam strips cocking up as before, but the adhesive face 14 being hidden from the paint.
  • Figures 7 and 8 illustrate a masking tape in which the adhesive strip comprises a foam strip 71 with an adhesive face 72 and at least one non-adhesive edge portion 73, which is profiled, as by crush welding, to form the cusp referred to above.
  • Crush welding otherwise known as cold welding or crush cutting, involves running a foam sheet 101 between rotary blades 102, Figure 10, that apply sufficient pressure to heat the foam to melting point and weld it, defining a pinch formation - the technique is described in EP0384626.
  • FIG 8 shows an arrangement in which each tape 11 has an additional edge section 11a that can be torn off after a first coat of paint has been applied to reveal a new strip of surface so that the second coat overlaps the first.
  • the tapes tear preferentially along the seams 1 Ib between adjacent edge sections 11a.
  • the blade configuration illustrated in Figure 10 provides these additional edge sections. Preferential tearing is effected using differential blade pressures and/or edge sharpness.
  • the same facility for a tearaway edge section can be provided in tapes illustrated in Figures 5 and 6 by crush welding the edge strips 52, or by adhesively applying a second edge strip adhesively to the upper surface of the tape 12 so that it overlaps the strip 52.
  • Figure 11 is a face-on view of a laterally flexible tape 12 applied to a surface of a panel 21 in an arc of a curve.
  • the tape is stretchy, and, in forming it into a curve, the tape on the outer edge of the curve is stretched, so that the tape on the inner edge of the curve does not fold or ruckle. If the tape is malleable, any folding on the inner edge can be pressed flat.
  • the tape could, of course, be both stretchy and malleable. As shown, the tape is curved such that the radius R of the inner edge curvature is equal to the width W of the tape 12,

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Details Or Accessories Of Spraying Plant Or Apparatus (AREA)

Abstract

L'invention concerne un ruban-cache qui comprend une bande adhésive plate possédant une face adhésive, et au moins un bord de mousse absorbante non adhésive qui, lorsque la face adhésive est appliquée sur une surface, masque l'adhésif et forme une cuspide dans laquelle la peinture peut être giclée, la mousse permettant d'absorber l'excès de peinture de manière à laisser un bord régulier le long de la peinture appliquée. Ce ruban peut être utilisé comme ruban de raccord pour l'application de peinture au pistolet, p. ex. pour les retouches sur les automobiles, jusqu'à la limite à laquelle la peinture fraîche doit se fondre avec la peinture existante. Ce ruban peut être flexible latéralement.
PCT/GB2006/001421 2005-04-15 2006-04-18 Ruban-cache WO2006109093A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GBGB0507643.5A GB0507643D0 (en) 2005-04-15 2005-04-15 Masking tape
GB0507643.5 2005-04-15
GB0519059A GB2425076A (en) 2005-04-15 2005-09-19 Masking tape
GB0519059.0 2005-09-19

Publications (1)

Publication Number Publication Date
WO2006109093A1 true WO2006109093A1 (fr) 2006-10-19

Family

ID=36794438

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2006/001421 WO2006109093A1 (fr) 2005-04-15 2006-04-18 Ruban-cache

Country Status (1)

Country Link
WO (1) WO2006109093A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7922844B2 (en) * 2006-12-21 2011-04-12 3M Innovative Properties Company Adhesive masking article for corners and door hinges
WO2012088214A1 (fr) 2010-12-24 2012-06-28 3M Innovative Properties Company Bande de camouflage
CN103212505A (zh) * 2013-03-18 2013-07-24 深圳市振勤电子科技有限公司 金属材料喷涂的遮挡结构
WO2015063525A1 (fr) * 2013-11-04 2015-05-07 Jtape Limited Ruban cache

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0384626A2 (fr) * 1989-02-20 1990-08-29 Minnesota Mining And Manufacturing Company Mousse façonnée
US6086709A (en) * 1994-02-14 2000-07-11 Speedarrive Projects Ltd. Sealing strip and method of sealing
WO2002068556A2 (fr) * 2001-02-24 2002-09-06 Jevtec Limited Ruban masque en mousse

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0384626A2 (fr) * 1989-02-20 1990-08-29 Minnesota Mining And Manufacturing Company Mousse façonnée
US6086709A (en) * 1994-02-14 2000-07-11 Speedarrive Projects Ltd. Sealing strip and method of sealing
WO2002068556A2 (fr) * 2001-02-24 2002-09-06 Jevtec Limited Ruban masque en mousse

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7922844B2 (en) * 2006-12-21 2011-04-12 3M Innovative Properties Company Adhesive masking article for corners and door hinges
US8317957B2 (en) 2006-12-21 2012-11-27 3M Innovative Properties Company Adhesive masking article for corners and door hinges
WO2012088214A1 (fr) 2010-12-24 2012-06-28 3M Innovative Properties Company Bande de camouflage
CN103212505A (zh) * 2013-03-18 2013-07-24 深圳市振勤电子科技有限公司 金属材料喷涂的遮挡结构
WO2015063525A1 (fr) * 2013-11-04 2015-05-07 Jtape Limited Ruban cache
US20160256886A1 (en) * 2013-11-04 2016-09-08 Jtape Limited Masking tape

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