HK1095118B - Moisture barrier membrane with tearable release liner composite - Google Patents

Description

Moisture barrier film with peelable release liner composite

Technical Field

The present invention relates to a moisture barrier film comprising a waterproofing adhesive, a carrier and a release liner composite comprising a paper sheet and paper cutting strings separated from the waterproofing adhesive by a polyolefin coating or film adhered to the paper sheet. The use of one or more polyolefin coatings bonded to the paper sheet facilitates the use of thinner (i.e., lower basis weight) paper and minimizes cost and environmental waste.

Background

Films comprising a water-resistant adhesive and a carrier sheet are known. Such laminates typically have a release sheet for protecting the adhesive. The release sheet is often made of waxed or siliconized paper that is removed from the waterproofing adhesive before the film is bonded to the building or other structural surface.

In US6,235,365 to Schaughency et al, a waterproofing membrane is disclosed having a preformed waterproofing adhesive layer, a releasable sheet liner and a string or strings effective to cut the release sheet liner into smaller sections for selective removal of the liner so that portions of the adhesive layer can be exposed for mounting to a building surface or civil engineering surface.

Schaughency also discloses that these "cut" strings provide convenience and flexibility in applying moisture barrier films to specific areas (e.g., uneven surfaces), as well as areas around doors, windows, and other discontinuities on building surfaces or other civil engineering surfaces (column 2, lines 13-18). Examples of suitable string include fishing line (e.g., 10-25 pound line) and dental floss, and examples of string material include nylon, metal, cotton, hemp, glass, or other materials, depending on the nature of the release sheet liner used. Optionally, the string is coated with wax, silicone, or other friction-reducing material to aid in removal or peeling from the waterproofing adhesive (column 3, lines 40-51).

Schaughency et al also disclose that one or more strings are positioned between the carrier layer and the release sheet liner within the film, fully or partially embedded within the waterproofing adhesive layer (column 2, lines 28-32). However, as a practical matter, it should be noted that the string, which is initially located between the adhesive layer and the release liner, may become partially or fully embedded in the waterproofing adhesive due to the tendency of the adhesive to flow around the string, resulting in difficulty in locating the cutting string in the work position.

One solution proposed by Schaughency et al is to tape the string to a release sheet liner to reduce the tendency of the string to embed into the adhesive layer (column 2, lines 14-16); and a mark or logo is placed on the outer surface of the release sheet liner to assist the user in locating the string in the mold at the installation site (column 4, lines 29-33).

However, the present inventors have recognized that it is difficult and problematic to adhere strings to release sheet liners using adhesive tape. Because the release sheet is thrown away after being removed from the film adhesive, the adhesive tape is undesirable because it increases the amount of waste that is deposited at the installation site. It is further believed that the oil-containing waterproofing adhesive may delaminate the tape adhesive and may allow the tape and string to adhere to the waterproofing adhesive rather than being removed with the release sheet liner.

Accordingly, there is a need for a new moisture barrier film with a new release liner composite.

Brief description of the invention

The present invention provides a moisture barrier film comprising a waterproofing adhesive layer having a first major side contiguous with a carrier sheet and a second major side releasably bonded to a release liner composite that is generally coextensive with the waterproofing adhesive layer. The term "coextensive" is used to indicate a situation in which the release liner composite is at least as wide as the adhesive layer, not exceeding the width of the adhesive layer, and thus does not fold over the portion extending beyond the adhesive layer.

A typical release liner composite of the present invention comprises: a paper sheet; a plurality of paper-cutting strings arranged in spaced relation and effective to cut the paper sheet as one of the strings passes through the paper; and a continuous polyolefin coating or film positioned between the waterproofing adhesive layer and the plurality of filaments. A continuous polyolefin coating or film is bonded to the paper sheet (e.g., by curtain coating the polyolefin onto the paper substrate) and effectively holds the threads in spaced relation to one another adjacent the paper sheet. A release coating (e.g., silicone or wax) releasably adheres to the polyolefin coating or film containing the waterproofing adhesive layer.

In yet another exemplary embodiment of the present invention, the waterproofing adhesive flows over or extends beyond the width of the carrier, and thus the moisture barrier has at least one exposed adhesive "edge bead" when installed on a building surface. Thus, the side of the paper sheet remote from the water-resistant adhesive may be coated with a release material (e.g., silicone and/or wax) along the longitudinal edges of the paper to protect the exposed edge bead adhesive when the film is formed into a roll.

When a polyolefin coating or film is used between the release coating and the paper sheet and the release coating is applied on both sides of the paper, (e.g., one side is coated all the way and the other side edge (margin) is coated), thinner paper sheets can be used and thus finer cutting strings can be used, thereby creating greater economic and ecological benefits.

In yet another exemplary embodiment, where the paper sheet also has an edge release coating side, the paper sheet may further have a polyolefin (e.g., high density polyethylene) coating or film between it and the edge release coating. Thus, in typical embodiments, a polyolefin coating or film may cover both major surfaces of the paper sheet; or only on one major surface of the paper sheet (towards the waterproofing adhesive) and on the other major surface, only at the edges corresponding to the above-mentioned edge beads of waterproofing adhesive. The use of a polyolefin coating or film in combination with a release agent coating helps to prevent or minimize so-called "notch failure," which refers to a phenomenon in which stress at the edge of a paper sheet can transfer tearing at the edge of the paper sheet.

In yet another exemplary moisture barrier film of the present invention, another exemplary release liner composite 16 may have one or more longitudinally extending strips of polyolefin coating or film extending parallel on the same side as the edge release coating (see 18/18A of FIG. 1). The polyolefin coating or film strip corresponds to the location of the cutting string 22 on the other side of the paper sheet 20 (fig. 1A), and functions to help locate and position the individual cutting strings 22 during installation, as well as to reduce nick failures at the edges of the paper sheet cut by one string 22.

Thus, a typical method of installing a moisture barrier film comprises: the moisture-proof film is arranged on the surface of a building or the surface of civil engineering in an unreeling mode; the release liner composite or a portion thereof is removed at an angle relative to the longitudinal direction of the positioned moisture barrier film, thereby bonding the moisture barrier film to the building or civil engineering surface.

Preferably, the present invention provides a moisture barrier film comprising:

a waterproof adhesive layer having a first major side contiguous with a carrier sheet and a second major side releasably bonded to a release liner composite, wherein the release liner composite is generally coextensive with the waterproof adhesive layer in that the release liner composite is at least as wide as the waterproof adhesive layer and is not folded along an edge, the release liner composite comprising:

a paper sheet;

a plurality of threads spaced from one another and effective to cut the sheet of paper as one of the threads passes through the paper; and

a continuous polyolefin coating or film positioned between said waterproofing adhesive layer and said plurality of threads, said continuous polyolefin coating or film being bonded to said paper sheet and effective to maintain said threads in spaced relation adjacent said paper sheet;

the release liner composite further comprises a release coating positioned between the waterproofing adhesive layer and the continuous polyolefin coating or film, the release coating effective to provide a releasable bond between the release liner composite and the waterproofing adhesive layer, and

the layer of waterproofing adhesive is wider than the carrier sheet so that when mounted to a building surface, the film has an exposed adhesive "edge bead" extending from at least one edge of the carrier sheet.

More preferably, the paper sheet further comprises a strip coating of release material on the face of the paper sheet facing the face on which the string is arranged, the strip coating corresponding to the position of the string on the other side of the paper sheet.

More preferably, the stripe coating comprises a release agent or a polyolefin.

In a preferred embodiment, the paper sheets of the release liner composite have an average caliper of no less than 1mil and no greater than 4 mils.

In a preferred embodiment, the polyolefin coating or film of the release liner composite has an average thickness of not less than 0.05mil and not greater than 1.5 mil.

In a preferred embodiment, the polyolefin coating or film is selected from the group consisting of polyethylene and polypropylene.

In a preferred embodiment, the release coating has an average coating thickness of not less than 0.05mil and not greater than 1.0mil, the release coating being coated on the polyolefin coating or film of the release liner composite.

In a preferred embodiment, the release liner composite is coated with a release agent at the edge at the side opposite the waterproofing adhesive layer at an average coating thickness of not less than 0.05mil and not more than 1.0 mil.

In a preferred embodiment, the paper sheet has an average basis weight of not less than 40 grammage and not more than 90 grammage.

In a preferred embodiment, the paper sheet has an average basis weight of not less than 50 grammage and not more than 85 grammage.

In a preferred embodiment, the paper sheet has an average basis weight of not less than 60 grammage and not more than 80 grammage.

The invention provides a method for installing a moisture-proof film, which comprises the following steps: placing the moisture-proof film on the surface of a building in an unreeling mode; removing the release liner composite or a portion thereof at an angle relative to the longitudinal direction of the placed moisture barrier film, thereby bonding the moisture barrier film.

The invention provides a method for installing a moisture-proof film, which comprises the following steps: placing the moisture-proof film on the surface of civil engineering in an unreeling mode; removing the release liner composite or a portion thereof at an angle relative to the longitudinal direction of the placed moisture barrier film, thereby bonding the moisture barrier film.

Further advantages and features of the present invention, as well as a typical method of making a moisture barrier film and release liner composite, are described in more detail below.

Brief description of the drawings

In the following description, reference is made to the accompanying drawings, which are provided for illustrative purposes only, and in which:

FIG. 1 is a schematic view of an exemplary moisture barrier membrane of the present invention comprising a waterproofing adhesive layer, a carrier, and an exemplary release liner composite;

FIG. 1A is an exploded view of a portion of the exemplary release liner composite shown in FIG. 1; and

fig. 2 is a plan view of an exemplary method of the present invention for bonding moisture barrier films.

Detailed description of the preferred embodiments

The term "moisture barrier film" includes sheet materials such as felts, spunbond materials (e.g., polypropylene), plastic and/or metal films, and the like, which are commonly used in the construction industry for house coverings or waterproofing. Also included are waterproofing membranes having a continuous preformed pressure sensitive waterproofing adhesive layer that remains laminar at ambient temperatures and effectively bonds to building surfaces (e.g., foundations, decks) and civil engineering structures (e.g., pipes, bridges, tunnels, etc.) as compared to hot-applied adhesive compositions.

Fig. 1 is a partially exploded cross-sectional view of an exemplary moisture barrier film laminate 10 of the present invention comprising a carrier 12, a waterproofing adhesive 14, and a release liner composite 16.

Preferably, the waterproofing adhesive 14 may directly contact or abut the carrier 12, but preferably the adhesive 14 cold flows or extends beyond the broad edges of the carrier sheet 12 to form one or more adhesive edge beads 15, which edge beads 15 are exposed outwardly when the membrane 10 is mounted on a building surface. The purpose of the outwardly exposed adhesive surface 15 is to allow another waterproofing membrane adhesive to be placed on the exposed adhesive edge bead 15 in adhesive-to-adhesive contact. Thus, a typical release liner composite 16 has a first major side 17 coated with a wax or silicone to form a releasable bond when in contact with the waterproofing adhesive layer 14, and a second major side 18 having an edge release coating portion (indicated by brackets at 18A) of sufficient width to correspond to the waterproofing adhesive edge bead 15 and coated with a wax or silicone to form a releasable bond with respect to the exposed adhesive edge bead 15 when the film laminate 10 is rolled upon itself.

The back side of the carrier sheet 12 (the side opposite the side to which the waterproofing adhesive layer 14 is bonded) may optionally contain an elastomeric coating or film (not shown) to improve the skid resistance against which the carrier sheet 12 is treaded. Accordingly, the exemplary moisture barrier film 10 of the present invention optionally includes a non-slip coating. Such non-slip coatings are used, for example, in Grace Construction Products, Cambridge, Massachusetts under the trademark Ice& WaterOn the roofing membrane. Other non-slip coatings known in the industry, such as particles (sand), may also be used.

FIG. 1A is an enlarged cross-sectional view of the exemplary release liner composite 16 of FIG. 1, including a paper sheet substrate 20; a plurality of threads 22 located on or adjacent the first major side of the paper sheet; at least one polyolefin coating 24 or film which adheres to the paper 20 and thus effectively positions the threads 22 on portions of the paper sheet 20 which (due to adhesion to the paper) are removable from the waterproofing adhesive layer 14; and a coating of silicone 26, wax, or other material effective to release the liner 16 from the waterproofing adhesive 14. Not shown in fig. 1A is the edge release coating portion 18A described above, which may comprise a wax or silicone coating on the edge of the release liner 16, either directly on the paper 20, or optionally on a polyolefin coating or film as shown at 28.

It is contemplated that a typical carrier 12, waterproofing adhesive 14, and threads 22 for use in the present invention will follow those described by Schaughency et al in US6,235,365, which is incorporated herein in its entirety.

Thus, the carrier 12 may be a continuous film made of paper, polymer, metal, glass, fabric (e.g., nonwoven), felt, or a mixture thereof, bonded to and/or embedded within the adhesive layer 14. Preferably, the carrier 12 comprises a polyolefin polymer (e.g., cross-laminated or oriented polyethylene or polypropylene). As is known in the art, a typical waterproof adhesive layer 12 may comprise an asphalt material (e.g., rubber modified asphalt) or a non-asphalt synthetic adhesive material (e.g., SIS, SEBS, butyl rubber, etc.). Examples of waterproofing membranes, and methods of making and using them are described in Hurst US3,741,856 and US3,900,102; US4,172,830 and US4,421,623 to Rosenberg and Gaidis; US4,751,122 to basej.may; and GeoffreyDavis canadian patent No.861467, all of which are incorporated herein by reference in their entirety. Rubber modified asphalt waterproofing adhesives are preferred in the present invention.

Preformed sheet-like moisture barrier films with carrier film and asphalt waterproofing adhesive are commercially available under the trade nameAnd ICE& WATERObtained from Grace Construction Products, Cambridge, mass.

Preferably, the width of the thin line 22 is narrower than the thickness of the waterproofing adhesive layer 14. The string should have unique strength to withstand being pulled out and tearing the release liner composite 16 without breaking. Examples of suitable string are fishing line such as 2-20 pound line, or dental floss, which may optionally be coated with wax, silicone, or other friction-reducing material to aid in removal or peeling from the adhesive 14. The string may comprise nylon, metal, hemp, glass or other material depending on the nature of the release sheet liner material used. The strings 22 are preferably aligned in a parallel fashion with respect to each other, along the longitudinal or machine direction of the release liner composite 16.

A preferred method of making the moisture barrier film 10 of the present invention comprises melt coating the waterproofing adhesive 14 (see fig. 1 and 1A) onto the silicone or wax surface 26 of a typical release liner composite 16 having a plurality of cutting strings 22 pre-positioned and held in spaced apart relation by a polyolefin coating or film 24, the polyolefin coating or film 24 being bonded to a paper sheet 20. After allowing the adhesive 14 to cool, the carrier 12 is bonded to the other major surface of the adhesive 14. Thus, the moisture barrier film 10 can be adhered to a building or structural surface by either passing a string 22 through the paper sheet 20 and removing a portion of the release liner composite 16, or the release liner 16 can be removed entirely. In the first version, where a cutting string 22 is used, the cutting string 22 passes through (and thus tears) the adjacent paper sheet 20, and portions of the polyolefin coating 24 and release coating 26 adhere to the cut paper sheet 20 and are removed at the edges of the string tear as they adhere to the paper and are removed when the cut paper portion is removed.

The use of a polyolefin coating or film 24 that is bonded to a paper sheet 20 and holds the cutting strings in place, as taught in US6,235,365 (see column 3, line 63 to column 4, line 6), is believed to be more advantageous than bonding the strings to the tape with a drop, adhesive, or tape, or embedding the strings in a waterproof film. The use of the polyolefin coating or film 24 over the entire surface of the paper sheet 20 enhances the tear resistance of the paper 20, thus allowing thinner paper to be used and thus finer threads to be used, thus reducing the amount of waste generated by the release paper being removed from the waterproofing adhesive 14 and discarded at the point of use.

The tear resistance, tensile strength, and other physical properties of the paper will depend on several factors, such as the strength of the peelable bond between the waterproofing adhesive and the release coating. In general, the tear strength and tensile strength should be selected so that the release liner composite 16 or selected portions thereof (e.g., as may be partially peeled away using the cutting string 22) can be removed without leaving a substantial amount of the paper sheet (20) on the waterproofing adhesive layer 14. It is believed that the use of the edge release coating portion 18A (and optionally, a strip of release coating at locations corresponding to the cutting strings 22) on the back side of the release liner composite 16 will provide additional resistance to notch failure (edge tearing) during the tearing of the release liner 16 from the waterproofing adhesive so that no significant amount of paper sheeting remains on the exposed waterproofing adhesive layer surface that will be adhered to the target building or civil engineering surface.

At least one polyolefin coating 24 or film may be applied on one major surface of the paper sheet 20, and more preferably at least one polyolefin coating or film (24 and 28) is applied on both surfaces of the paper 20. A double surface coating is preferred because it is believed that the tear resistance of the paper is improved on both sides of the release liner composite edge 18A, which release liner composite edge 18A is to be releasably bonded to the waterproofing adhesive (e.g., the entire surface and edge bead 15) on both sides.

A typical paper sheet 20 suitable for use in the present invention is kraft paper having an average basis weight of 40 to 90 grams per square meter, more preferably 50 to 85 grams per square meter, and most preferably 60 to 80 grams per square meter.

Typical polyolefin coatings and films 24 and 28 comprise low density polyethylene, high density polyethylene, polypropylene, or mixtures thereof. High density polyethylene is preferred. The average thickness of the coating or film is from 0.01 to 2.0 mils, more preferably from 0.05 to 1.5 mils, and most preferably from 0.1 to 1.25 mils. The average thickness of the polyolefin coating 24 on the major surface 17 of the waterproofing adhesive 14 should preferably be at least equal to, and more preferably should exceed, the average thickness of the polyolefin coating 18A of the edge on the other major surface 18 of the paper sheet 20. Preferably, the polyolefin is melt-bonded to the paper by: curtain coating a continuously moving paper substrate and nipping the coated paper between counter rollers to ensure a uniform coating thickness. Alternatively, a polyolefin film (less than 2mil) is laminated to the paper using heated rollers.

Typical release coatings 26 and 18A have an average thickness of 0.01 to 1.5 mils, more preferably 0.05 to 1.0mil, and most preferably 0.1 to 0.5mil, on the release liner composite. Preferably, the release coating (e.g., silicone or wax) is applied by curtain coating, spraying, or other known methods.

As shown in fig. 2, the exemplary method of the present invention allows for the rapid and accurate placement of an exemplary moisture barrier film (e.g., a waterproof film) of the present invention. After the release liner is removed, the first waterproofing membrane 30 is bonded to the desired surface with the sheet 32 thereon. The membrane has longitudinally extending exposed edge beads 34 of waterproofing adhesive that extend beyond, or cold flow beyond, the outermost edge of the carrier 32. The second moisture barrier film 10 can be accurately placed in overlying relation to the longitudinally extending edge bead of the previously installed film 30 and the release liner composite 16 can be removed in a peeling action at an angle to the longitudinal direction of the film 10. The composite release material 16 to be recycled is intact.

Thus, a typical method of the invention comprises: in roll-out fashion, placing a moisture barrier film 10 on a building (e.g., a roof, deck, foundation, wall, etc.) or civil engineering surface (e.g., a tunnel, bridge surface, pipe, etc.), the moisture barrier film 10 comprising a carrier sheet 12, a waterproofing adhesive layer, and a removably bonded release liner composite 16, the composite 16 comprising a paper sheet, at least one polyolefin coating or film bonded to the paper sheet, and a plurality of strings for cutting the paper sheet as the strings are threaded through the paper sheet, the strings being contained between the paper sheet and the at least one polyolefin coating or film, and the release liner composite 16 further comprising a release agent (e.g., silicone or wax) on a major surface releasably bonded to the waterproofing adhesive layer and further comprising a release agent on the other major surface of the release liner composite 16 along an edge, the edges extend longitudinally along the edges of the release liner composite 16; some or all of the release liner composite is removed, thereby bonding the moisture barrier film 10 to a building or civil engineering surface.

As can be seen in FIG. 2, the release liner composite 16 may be removed as an entire sheet or, as shown at 22 in FIG. 1A, may be removed in strip portions due to the fact that it contains cutting strings. In either case, the fact that the moisture barrier film 10 can be unwound and placed in a predetermined position prior to removal of the release liner 16 (or any portion thereof) provides advantages in terms of ease and accuracy of placement when compared to prior methods, i.e., unwinding the moisture barrier film in the direction in which the release paper is peeled away, as shown in U.S. Pat. No. 3,900,102 (see FIG. 4). In addition, the use of the polyolefin coating or film positions the cutting string onto the paper sheet, enabling the use of thinner paper (and preferably thinner strings) while improving the tear resistance of the paper-based release composite 10 as a whole. Preferably, the cutting filaments have an average diameter of 1-2 mils, and are preferably made of monofilament polyester and have a color (e.g., yellow) that is easily seen during installation.

Thus, a typical moisture barrier film of the present invention can be placed in one position and the edge strips of the release liner composite removed by pulling the string near the edge through the paper release liner. Although the string cuts through the paper, does not cut through the underlying polyethylene coating that bonds the string to the paper, and also does not cut through the release agent coating (silicone) that releasably bonds the paper/polyethylene side to the waterproofing adhesive layer, the entire strip portion of the release liner composite (comprising paper, polyethylene and release coating) is removed because the polyethylene is bonded to the paper and the release agent coating is preferably bonded to (the polyethylene coated side of) the paper.

Preferably, the overall thickness of the release liner composite 10 is from 2 to 7 mils, more preferably from 4 to 6.5 mils.

Preferably, the film 10 of the present invention has a non-slip coating on the back of the carrier sheet 12 to provide some friction to the footrests when the film is installed on a building surface. Any conventional non-slip coating may be used.

The above-described exemplary embodiments are for illustrative purposes only and are not meant to limit the scope of the present invention.

Claims (14)

1. A moisture barrier film comprising:

a water repellant adhesive layer having a first major side contiguous with a carrier sheet and a second major side releasably bonded to a release liner composite, wherein the release liner composite is generally coextensive with the water repellant adhesive layer in that the release liner composite is at least as wide as the water repellant adhesive layer and is not folded along an edge, the release liner composite comprising:

a paper sheet;

a plurality of threads spaced from one another and effective to cut the sheet of paper as one of the threads passes through the paper; and

a continuous polyolefin coating layer positioned between said waterproofing adhesive layer and said plurality of threads, said continuous polyolefin coating layer being bonded to said paper sheet and effective to maintain said threads in spaced relation adjacent said paper sheet;

the release liner composite further comprises a release coating positioned between the waterproofing adhesive layer and the continuous polyolefin coating, the release coating effective to provide a releasable bond between the release liner composite and the waterproofing adhesive layer, and

the layer of waterproofing adhesive is wider than the carrier sheet so that when mounted to a building surface, the film has an exposed adhesive "edge bead" extending from at least one edge of the carrier sheet.

2. The moisture barrier of claim 1 wherein said paper sheet further comprises a strip coating of release material on the side of said paper sheet opposite the side on which said threads are arranged, said strip coating corresponding to the location of said threads on the other side of the paper sheet.

3. The moisture barrier of claim 2 wherein said stripe coating comprises a release agent or a polyolefin.

4. The moisture barrier film of claim 1 wherein said paper sheet of said release liner composite has an average caliper of not less than 1mil and not greater than 4 mils.

5. The moisture barrier film of claim 4 wherein said polyolefin coating of said release liner composite has an average thickness of not less than 0.05mil and not greater than 1.5 mil.

6. The moisture barrier film of claim 5 wherein said polyolefin coating is selected from the group consisting of polyethylene and polypropylene.

7. The moisture barrier film of claim 6 wherein said release coating has an average coating thickness of not less than 0.05mil and not greater than 1.0mil, said release coating being coated on said polyolefin coating of said release liner composite.

8. The moisture barrier membrane of claim 7 wherein said release liner composite is coated with a release agent at the edge at the side opposite said waterproofing adhesive layer at an average coating thickness of not less than 0.05mil and not greater than 1.0 mil.

9. The moisture barrier of claim 1 wherein said paper sheet has an average basis weight of not less than 40 grammage and not greater than 90 grammage.

10. The moisture barrier of claim 1 wherein said paper sheet has an average basis weight of not less than 50 grammage and not greater than 85 grammage.

11. The moisture barrier of claim 1 wherein said paper sheet has an average basis weight of not less than 60 grammage and not greater than 80 grammage.

12. The moisture barrier film of any one of claims 1, 5-7 wherein the polyolefin coating is a polyolefin film.

13. A method of installing a moisture barrier film comprising: placing the moisture barrier film of claim 1 in roll-out fashion on a building surface; removing the release liner composite or a portion thereof at an angle relative to the longitudinal direction of the placed moisture barrier film, thereby bonding the moisture barrier film.

14. A method of installing a moisture barrier film comprising: placing the moisture barrier film of claim 1 on a civil engineering surface in roll-out fashion; removing the release liner composite or a portion thereof at an angle relative to the longitudinal direction of the placed moisture barrier film, thereby bonding the moisture barrier film.