JP6476214B2 - Drywall architectural strip - Google Patents

Description

  The present invention relates to a separation strip and a method for assembling the separation strip in drywall construction.

  In drywall construction it is necessary to provide expansion joints in various situations.

  For example, when two two-dimensional dry wall panels (dry wall surfaces) are connected to a solid building element, the expansion coefficient and temperature / humidity expansion coefficient of the materials (dry wall surface and solid building element) differ depending on the effects of humidity and temperature. In order to prevent irregular ("zigzag") cracking at the transition due to temperature, humidity and vibration, it is necessary to provide an expansion joint.

  In addition, for example, when applying stucco to the abutment part of a building element made of a different material such as a dry wall surface and a solid building element, in order to prevent irregular cracking of stucco at the seam as much as possible, In the connection area of building elements, it is desirable to separate the stucco part with a joint.

  When the two building elements move relative to each other in temperature and humidity or in vibration, a separating strip is used (as well as a shadow groove) to form a hair joint. Thus, zigzag cracking is prevented and an optically uniform appearance is formed.

  The prior art uses paper strip-shaped separation strips for this purpose. This is typically about 50 mm to 70 mm wide, with a sticky adhesive stripe typically about 10 mm to 15 mm wide disposed in the longitudinal direction of the front face at approximately one end.

  The separation strip is usually affixed onto a solid building element that is directly adjacent to the assembled profile that supports the drywall surface. The separation strip is applied along the contour, and the adhesive stripe of the separation strip is pressed against the contour and hidden by a dry wall panel that is substantially abutted later.

  Before assembling the outer shape on the solid building element, the separation strip is applied on the outer shape, the non-adhesive part protrudes on the outer shape, and after the outer shape assembly, on the contact area between the solid building element and the outer shape and almost adjacent to the solid building element It is unlikely to protrude above the contact area with the dry wall panel.

  The dry wall panel is then assembled on the outer shape, typically about 3 mm to 5 mm from the separation strip, and the gap between the dry wall panel and the separation strip is filled with a filling compound.

  The non-adhesive part of the separating strip protrudes above the joint. After drying, the filling compound is grindered if necessary, and the overhanging non-adhesive paper strip is cut with a pointed object such as a blade.

  The non-bonded portion of the separation strip may expand or contract due to changes in environmental conditions (air humidity and temperature). This can cause the paper to roll up and the separating strip to warp from the solid building element.

  If the separating strip warps, the filling connection cannot be completely filled with the filling compound or cannot be filled cleanly. This makes accurate connection and flat filling difficult, and the separation strip tears along the edge between the solid building element and the drywall surface. The result is an optically unsatisfactory appearance.

  In principle, the filling compound can also be applied under the separating strip, making it difficult to separate the protruding paper strip.

  It is an object of the present invention to at least partially solve the problems in the prior art, and in particular to make available a separating strip and a method for assembling the separating strip to reduce the warping of the separating strip.

  The problem is a separation strip having two main surfaces comprising a carrier material and an adhesive, the first main surface being divided into at least two regions along the axis in the web direction, the at least two regions being Solved by a separating strip, applied at least partly with an adhesive, and at least two areas of which have different adhesive strengths.

  According to the invention, the separation strip has two main surfaces, which are located on opposite sides of the separation strip. One of the major surfaces is divided along an axis in the web direction. These areas are at least partially coated with adhesive, but have very different bond strengths. These regions typically exist over the entire length of the separation strip.

  In another embodiment, it has two major surfaces, the first major surface is divided into at least two regions along the web direction axis, at least one region is coated with adhesive and the carrier material is double-sided This problem is solved by a separate strip selected from sized paper or coated paper, non-woven fabric, or polymer film.

  Double-sided sized paper or coated paper, or a synthetic fiber component nonwoven fabric, or plastic film is less sensitive to humidity than paper that is not treated on at least one side. A carrier web material is preferably used that has a water absorption of less than 2 grams per square meter in 30 minutes when placed upright in a 100% humidity test chamber.

  Sizing and coating are operations for changing the properties of paper in the paper industry. By sizing, the binder is applied once or repeatedly, and the paper is then calendered if necessary. An example of the coated paper is polyethylene coated paper or the like. It is also possible to size one side of the paper and coat the opposite side.

  Particularly suitable as the film is a polyethylene (PE), polypropylene (PP) or polyester (PET) film.

  The thickness of the carrier web was tried and tested in the range of 12 μm to 110 μm.

  A pressure sensitive adhesive is preferably used as the adhesive. For this purpose, a plurality of water-dispersed pressure sensitive adhesives or their dissolved in an organic solvent, for example on an acrylate or rubber substrate, or a hot melt pressure sensitive adhesive on a rubber or acrylate substrate is used. be able to. In principle, the adhesive may be a reactive adhesive that is further crosslinked by thermal or thermal or IR irradiation, or by UV or electron beam.

  In principle, it is also preferred that a region without adhesive is also present. This specifically makes it easier to remove the separation strip from the end region surface. The area without adhesive is specifically in the end area of the separation strip by the area where the adhesive is applied on the same main surface.

  These regions may be configured with different adhesive forces from each other, for example by using two different adhesives. It is possible to apply different amounts (weight per unit area) even with the same adhesive.

  Even if the same amount of adhesive is applied, the effect of the adhesive can be eliminated in one region.

In a preferred embodiment, the same adhesive is used for the different areas, but the adhesive is applied in a grid pattern, for example with dots. Here, in order to control the adhesive area and its adhesive strength, the corresponding grid-like shapes are different in shape, size, or spacing. Such a grid-like, for example dot-shaped, adhesive region can be produced preferably by silk screen printing. It has been found that it is preferred that the adhesive weight per unit area of the region with a large amount of adhesive is about 20 to 50 g / m ² and the region with a small amount of adhesive is about 0.5 to 5 g / m ² . The bond strength should be adjusted so that areas with low adhesive can be easily peeled off without residue and the other in principle adheres firmly. If it becomes necessary to reposition the entire separation strip, the adhesive strength of the adhesive-rich area should not be too high.

  Typical adhesion strength (measured by FINAT test method 2 (FTM2), 20 minutes, glass adhesion), the area with high adhesion strength is 5-20 N / 25 mm, the area with low adhesion strength and re-peelable area is 0 0.5 to 2 N / 25 mm.

  In a preferred embodiment, the carrier web is siliconized on the adhesive-free side. When the separating strip is removed from the roll, there is no need to provide a separating cover web since the silicone treated side acts as a separating layer on the adhesive.

  A variant with at least two adhesive areas has the advantage that the material used can be paper. This is easily disposable and regrows naturally. The carrier material can include paper that is expandable in the presence of humidity, such as paper that is not treated on one side, or a nonwoven such as a pure cellulose nonwoven. Synthetic non-woven fabrics or plastic films are disadvantageous from an environmental point of view.

  Thus, embodiments based on paper as the carrier material are particularly preferred.

FIG. 1 shows the main surface of a separating strip having an adhesive-free area (1), a low adhesive strength area (2) and a high adhesive strength area (3). FIG. 2 shows the main surface of a separation strip having an adhesive-free area (1), a low adhesive strength area (2) and a high adhesive strength area (3). FIG. 3 shows the main surface of the separation strip having a region without adhesive (1), a low adhesive strength region (2) and a high adhesive strength region (3). FIG. 4 shows the main surface of the separating strip having an adhesive-free area (1), a low adhesive strength area (2) and a high adhesive strength area (3). FIG. 5 shows the main surface of the separation strip having a region without adhesive (1), a low adhesive strength region (2) and a high adhesive strength region (3).

The present invention will be described in detail using the following examples.
Method of preparation A separation strip is prepared using single-sided siliconized paper.

  65 mm wide carrier material stripes pass over the coating equipment with carrier web unwinding unit, carrier web feeding unit, web edge guide system, adhesive application station, and separating strip winding unit to apply adhesive Then, the film is wound around a corrugated core having an inner diameter of 76 mm and a wall thickness of 3 mm to form a roll having a web length of 50 m. When using a 65 mm multiple width carrier material web, a 65 mm multiple width separation strip is cut with a roll cutter into a plurality of 65 mm wide strips, wound as described above.

  The separation strip is glued to the cardboard core with each adhesive stripe and the outer end is closed with a self-adhesive identification label.

Example 1: Application with two adhesive stripes of different widths 65 mm wide silicone treated separation paper Separacion 990-26.5, white (made by Maria Soell GmbH & Co. KG) on the non-silicone side 10 mm A hot melt pressure sensitive adhesive Collano L1 972 (manufactured by Collano Adhesives AG) is applied in a stripe shape by a slot nozzle having a width and a width of 1 mm. At this time, each adhesive mixture is adjusted to have a weight per unit area of 50 g / m ² .

  The hot melt pressure sensitive adhesive is 160-170 ° C. hot at the outlet. The slot nozzle is located approximately 2 mm from the deflected separator web, the 10 mm wide slot nozzle is 2 mm from the end of the web, and the 1 mm wide slot nozzle is 2 mm from the other end of the web. Is done. Thus, each adhesive stripe is arranged at a position 2 mm from the end. Please refer to FIG.

Example 2: Application of two adhesives on top of each other Two slots placed on the front and back of Separacion 990-26.5, white (made by Maria Soell GmbH & Co. KG) treated with single-sided silicone with a width of 65 mm A hot melt pressure sensitive adhesive is applied to the non-silicone side of the nozzle.

The first slot nozzle is 61 mm wide. Hot melt pressure sensitive adhesive Duro-Tak H 1538 (Henkel AG & Co. KGaA) is applied as a 61 mm wide adhesive stripe in the center with a weight of 10 g / m ² per unit area. The 2 mm wide stripes on each of the left and right sides remain without adhesive. When the adhesive exits the slot nozzle, it is about 165-170 ° C hot.

The second slot nozzle is 10 mm wide. A hot melt pressure sensitive adhesive Duro-Tak H 3036 (from Henkel AG & Co. KGaA) is applied to one end with a weight of 40 g / m ² per unit area in a 10 mm width on one end already having an adhesive stripe. . The hot melt pressure sensitive adhesive is 180 ° C. hot when exiting the slot nozzle. The two nozzles are arranged 1 mm apart in the front and back, and are about 2 mm away from the separation paper that passes.

  The separating paper is guided over a cooled and slightly curved plate between the two slot nozzles. Two overlapping adhesive stripes with different adhesive strengths are generated. Please refer to FIG.

Example 3 Printing Adhesives at Different Densities 65 mm wide single sided silicone treated separation paper KS 800 white, 51 BU (B. Laufenberg GmbH) non-silicone treated side, hot melt pressure sensitive adhesive by rotary sieve Technomelt PS 8787 (from Henkel AG & Co. KGaA) is applied in dots from the edge of the separating paper web. The opposite edge remains free of adhesive up to 2 mm wide. Application is performed as follows. Adhesive dots with a diameter of 180-200 μm, a density of 10 dots per inch, an adhesive mixture weight per unit area of 0.5 g / m ² , are adjoined to a 53 mm wide area, adjacent to the stripe without adhesive Adhesive dots with a diameter of 320 to 350 μm, a density of 40 dots per inch, and a weight per unit area of 40 g / m ² are attached to a 10 mm wide region. Please refer to FIG.

  The temperature of the adhesive mixture reaches about 180 ° C. The rotary sieve is disposed on an opposing pressure roller that deflects the separating paper web and is in contact with the separating paper web passing therethrough.

Example 4: Printing adhesive with different density Single side silicone treated separation paper KS 900 White, 51 BU (B. Laufenberg GmbH) non-silicone treatment side, 63 mm wide from the edge of the separation paper web, rotary sieve machine The hot melt pressure sensitive adhesive Technomelt PS 8787 (manufactured by Henkel AG & Co. KGaA) is applied in the form of dots. The opposite side remains 2 mm without adhesive. The dot-shaped pressure-sensitive adhesive application area has a width of 53 mm where the diameter of the adhesive dots is 180-200 μm, the density is 20 dots per inch, and the weight of the adhesive mixture per unit area is 2.0 g / m ² . And a 10 mm wide area adjacent to the non-adhesive area where the adhesive dot diameter is 320-350 μm, the density is 40 dots per inch, and the weight per unit area is 40 g / m ² . Divided. Please refer to FIG.

  The temperature of the adhesive mixture reaches about 180 ° C. The rotary sieve is disposed on an opposing pressure roller that deflects the separating paper web and is in contact with the separating paper web passing therethrough.

Example 5: Printing adhesive at different densities 65 mm wide single-sided siliconized separation paper KS 900 white, 51 BU (B. Laufenberg GmbH) non-silicone treated side separation paper web to 61 mm width A hot-melt pressure-sensitive adhesive Collano L1 972 (manufactured by Collano Adhesives AG) by a rotary sieve is applied in the form of dots. Thus, each 2 mm width on both edges remains without adhesive. The dot-shaped pressure-sensitive adhesive application area has a width of 51 mm where the diameter of the adhesive dots is 180-200 μm, the density is 20 dots per inch, and the weight of the adhesive mixture per unit area is 2.0 g / m ² . And a 10 mm wide area where the adhesive dot diameter is 320-350 μm, the density is 40 dots per inch, and the weight of the adhesive mixture per unit area is 40 g / m ² . Please refer to FIG.

  The temperature of the adhesive mixture reaches about 170 ° C. The rotary sieve is disposed on an opposing pressure roller that deflects the separating paper web and is in contact with the separating paper web passing therethrough.

Example 6: Printing multiple adhesives at different densities Separation paper C-Liner 13325 / 1.80 g / m ² , white (manufactured by Mondi Packaging Silica SRL), single-sided silicone treated, non-roll Pressure sensitive adhesive Technomelt PS 8787 (from Henkel AG & Co. KGaA) by rotating sieve on the silicone treated side is 63 mm KS / on the entire web width (KfS = no adhesive stripe, KS = adhesive stripe) It is applied in the form of 12 stripes distributed as 10 × (4 mmKfS / 126 mmKS) / 4 mmKfS / 63 mmKS.

Thus, each 63 mm wide adhesive stripe has an adhesive dot diameter of 180-200 μm, a density of 10 dots per inch, and a weight of adhesive mixture per unit area of 0.5 g / m ² . An area of 53 mm, an adhesive dot diameter of 320-350 μm, a density of 40 dots per inch, and an adhesive mixture weight per unit area of 40 g / m ² , each 10 mm wide adjacent to the non-adhesive area It is divided into areas.

Thus, each 120 mm wide adhesive stripe has a central adhesive dot diameter of 180-200 μm, a density of 20 dots per inch, and a weight per unit area of the adhesive mixture of 2.0 g / m ² . In a 100 mm wide area, an adhesive dot diameter of 320-350 μm, a density of 40 dots per inch, and an adhesive mixture weight of 40 g / m ² per unit area, each with no adhesive It is divided into adjacent 10 mm wide areas.

  The application temperature of the adhesive mixture reaches about 180 ° C. The rotary sieve is disposed on an opposing pressure roller that deflects the separating paper web and is in contact with the separating paper web passing therethrough. At the time of winding, the web is cut so as to form a normal separating paper web having a width of 65 mm. Thus, 22 rolls of separation paper web are completed. Please refer to FIG.

Example 7: Printing multiple adhesives at different densities Separation paper C-Liner 13325 / 1.90 g / m ² , white (manufactured by Mondi Packaging Silicon SRL) with a width of 1,430 mm Is applied in a striped manner with a pressure sensitive adhesive DuroTak H 3036 (Henkel AG & Co. KGaA). Here, the 22 adhesive stripes are 2 mmKfS / 61 mmKS / 20 × (4 mmKfS / 61 mmKS) / 4 mmKfS / 61 mmKS / 2 mmKfS on the entire web width (KfS = adhesive stripe, KS = adhesive stripe) Distributed.

Thus, each 61 mm wide adhesive stripe has a width where the adhesive dot diameter is 180-200 μm, the density is 20 dots per inch, and the weight of the adhesive mixture per unit area is 2.0 g / m ^2. An area of 51 mm, an adhesive dot diameter of 320-350 μm, a density of 40 dots per inch, and an adhesive mixture weight of 40 g / m ² per unit area, each 4 mm wide It is divided into a 10 mm wide area adjacent to the area without adhesive.

  The application temperature of the adhesive mixture reaches 180 ° C. The rotary sieve is disposed on an opposing pressure roller that deflects the separating paper web and is in contact with the separating paper web passing therethrough. The web is cut to obtain 22 rolls of separation paper in parallel with the printing process. Please refer to FIG.

  All references are included in this disclosure in their entirety as long as the disclosure does not conflict with the teachings of the present invention.

Claims (14)

A separation strip for drywall connection, having two main surfaces with carrier material and adhesive,
The first major surface is divided into at least two regions along an axis in the web direction;
Separation strip, wherein the at least two regions are at least partially coated with adhesive and each have a different bond strength. A separating strip having two major surfaces with a carrier material and an adhesive,
The first major surface is divided into at least two regions along an axis in the web direction;
At least one region is coated with an adhesive, and the first main surface is provided with at least one region to which no adhesive is applied, and the carrier material is a double-sided size paper or coat. Separation strip selected from paper, nonwoven fabric or polymer film.   Separation strip according to claim 1, characterized in that the carrier material is selected from size paper or coated paper, non-woven fabric or polymer film.   The separation strip according to any one of claims 1 to 3, wherein the adhesive is a pressure sensitive adhesive.   4. Separation strip according to any one of the preceding claims, wherein at least one area without adhesive is present on the first main surface.   The separation strip according to any one of claims 1, 3, and 4, wherein the at least two regions having different adhesive strengths are coated with different adhesives.   The at least two regions having different adhesive strengths are coated with the same adhesive, but differ in layer thickness, amount, or weight per unit area. 6. The separation strip according to any one of items 5.   The said at least two area | regions which have mutually different adhesive strength are the same adhesives, However, It is applied in the ratio of the different adhesive agent on a web, Any one of Claims 3-5. Separation strip according to paragraph.   The separation strip according to any one of claims 1 and 3 to 7, wherein the at least two regions having different adhesive strengths have the adhesive in a lattice shape.   10. Separation strip according to claim 9, wherein the two regions having different adhesive strengths have different sizes or different spacings of the grid.   The separation strip according to any one of claims 1 to 9, wherein the second main surface is siliconized. A method of assembling separation strips in drywall construction,
Assembling the separating strip according to any one of claims 1 to 11 on an external web (Profilsteg) or a solid building element;
Assembling the outer web on the solid building element such that the separating strip contacts the outer web and the solid building element;
Assembling a gypsum board on the outer web;
Filling a gap between the solid building element and the gypsum board;
Cutting an overhang region of the separation strip;
Including methods. A method of assembling separation strips in drywall construction,
Assembling the separation strip according to any one of claims 1 to 11 between the transitions of two building elements;
Stuccoing areas on both sides of the separation strip;
Cutting an overhang region of the separation strip;
Including methods.   Use of a separation strip according to any one of claims 1 to 11 in drywall construction.

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