TWI801464B - Sheet and kit for sheet - Google Patents

Abstract

Object: To facilitate attaching and detaching of a sheet.

Resolution Means: A sheet according to an embodiment includes: a film layer having a front face and a back face, and a fastener layer including a first hook-and-loop fastener member that is fixed on at least one part of the back face of the film layer. The first hook-and-loop fastener member includes at least one of a loop material or a hook material. The thickness of the hook material is 600 μm or less. The loop material includes a nonwoven fabric or knit being capable of engaging with the hook material.

Description

Sheets and sets for sheets

One aspect of the invention relates to a sheet of material and a kit for a sheet of material.

Sheets that can be adhered to various places on the inside or outside of buildings are known in the art. For example, Patent Document 1 describes an image pattern matching tape that includes a major surface that includes an imageable surface and an opposing major surface that includes a non-conductive surface for mating with a substrate. Adheres to the mating surface.

[citation list] 【Patent Literature】

Patent Document 1: JP 2001-512587 A

It is desirable to facilitate the attachment and detachment of a sheet.

A sheet of material according to an aspect of the present invention includes: a film layer including a front side and a back side; and a fastener layer including a first fastener secured to at least a portion of the back side of the film layer. hook and loop fastener member; the first hook and loop fastener member At least one of a loop material or a hook material is included; a thickness of the hook material is 600 μm or less; and the loop material includes a non-woven or knitted fabric capable of engaging the hook material.

In this aspect, since a hook and loop fastener member is provided on the back side of the film layer, the sheet can be easily attached or detached.

According to an aspect of the invention, attachment and detachment of a sheet can be facilitated.

1‧‧‧sheet

1A‧‧‧sheet

2‧‧‧Film layer/film

2a‧‧‧Front/Surface

2b‧‧‧back side

10‧‧‧graphic sheet

10A‧‧‧graphic sheet

11‧‧‧Printing film layer

11a‧‧‧printing surface

11b‧‧‧back side

12‧‧‧Fastener layer

12A‧‧‧Fastener layer

13‧‧‧adhesive layer

21‧‧‧ring materials

21a‧‧‧base

21b‧‧‧ring layer

22‧‧‧Hook material

22a‧‧‧base

22b‧‧‧hook

31‧‧‧Projector screen

32‧‧‧whiteboard sheet

33‧‧‧Sheets for post-it notes

34‧‧‧Decorative sheets for interior and exterior

40‧‧‧adhesive sheet

40a‧‧‧Base material layer/substrate layer

40b‧‧‧adhesive layer

40c‧‧‧adhesive layer

80‧‧‧graphic pattern

90‧‧‧support surface

91‧‧‧Concave part

92‧‧‧Protruding part

100‧‧‧kits for sheets

111‧‧‧film

112‧‧‧Support layer

113‧‧‧adhesive layer

200‧‧‧Projectors

220‧‧‧Clothing

Figure 1 is a cross-sectional view of a sheet according to an embodiment.

Figure 2 is a cross-sectional view of one example of a film layer.

Fig. 3 is a diagram illustrating a usage example of a sheet according to an embodiment.

Figure 4 is a cross-sectional view of a sheet according to an embodiment.

Fig. 5 is a sectional view of a graphic sheet according to a first embodiment.

Fig. 6 is a sectional view of a graphic sheet according to a second embodiment.

FIG. 7 is a diagram showing a usage example of a projector screen according to a third embodiment.

Fig. 8 is a diagram showing a usage example of a whiteboard sheet according to a fourth embodiment.

Fig. 9 is a diagram showing a usage example of a sheet for post-it notes according to a fifth embodiment.

Fig. 10 is a diagram showing a usage example of a graphic sheet according to a sixth embodiment.

Fig. 11 is a diagram showing a usage example of a cover according to a seventh embodiment.

Fig. 12 is a cross-sectional view showing a usage example of the cover according to the seventh embodiment.

Fig. 13 is a sectional view of a set for a sheet according to an eighth embodiment.

Fig. 14 is a diagram showing an example of use of a set for a sheet according to the eighth embodiment.

Embodiments of the present invention will be described below with reference to the accompanying drawings. In the description of the drawings, the same or similar components are assigned the same reference numerals and redundant description thereof will be omitted.

Sheet structure

A sheet of material described in the present disclosure includes: a film layer including a front side and a back side; and a fastener layer including a first hook and loop secured to at least a portion of the back side of the film layer Fastener member; the first hook and loop fastener member includes at least one of a loop material or a hook material; a thickness of the hook material is 600 μm or less; and the loop material includes a nonwoven or knitted fabric, which Capable of engaging the hook material.

Since a hook and loop fastener member is provided, the sheet can be easily attached or detached. In addition, a hook material whose thickness is thin and 600 [mu]m or less, and which can be engaged with the hook material, a non-woven fabric or knitted fabric can be used as the loop material. Therefore, a hook and loop fastener member that is lightweight, easily portable, and flexible can be obtained. In addition, since the thickness of the engaging portion of the hook-and-loop fastener member can be made relatively small, bulkiness of the sheet after the sheet has been fixed on a support surface can be suppressed. Thus, superior attachment and natural appearance of the sheet can be achieved.

With regard to the sheets according to the present disclosure, the use of the sheets is not limited as shown in the various embodiments described below. For example, the sheet can be used as a graphic sheet, a projector screen, a whiteboard sheet, a sheet for post-it notes, or a decorative sheet for building interiors and exteriors.

Sheet 1 may be adhered to any tangible object. In this disclosure, both "adhering a sheet" and "attaching a sheet" refer to securing the sheet to any tangible object. When the sheet 1 is adhered to a tangible object, the entire sheet 1 may be supported by the tangible object, or at least a part of the sheet 1 may be supported by the tangible object. Thus, the sheet 1 can be adhered to a tangible object in such a way that the sheet 1 hangs from the tangible object. The duration for which the sheet 1 adheres is not limited and may be a short or long period of time.

Fig. 1 is a cross-sectional view of a sheet 1 according to an embodiment. The sheet 1 includes a film layer 2 , a fastener layer 12 , and an adhesive layer 13 . The film layer 2 and the fastener layer 12 are bonded through the adhesive layer 13 .

The film layer 2 is a sheet-like member, which has a front side 2a and a back side 2b. Corresponding to the fact that the use of the sheet 1 is not limited, the nature of the film layer 2 is not limited. For example, depending on the use of the sheet, the structure, material, and function of the film layer 2 can be flexibly designed. The film layer 2 can be transparent or opaque or can be colored. The film layer 2 may have recesses and protrusions formed by embossing or debossing.

The film layer 2 can be a single layer or a laminate of multiple layers. When the membrane layer 2 comprises a plurality of layers, the membrane layer 2 may comprise a thin support layer. FIG. 2 is a cross-sectional view of an example of one of the film layers 2 formed from a plurality of layers. In this example, the film layer 2 includes a film 111 forming a surface, a support layer 112 , and an adhesive layer 113 . The membrane 111 and the support layer 112 are bonded through the adhesive layer 113 . The material of the support layer 112 is not limited. For example, when polyester is used for the support layer, the smoothness of the surface of the film layer 2 can be maintained even during printing with a solvent ink while reinforcing the film 2 . The lower limit of the thickness of the supporting layer 112 may be 25 μm, 35 μm, or 38 μm, and the upper limit thereof may be 100 μm, 80 μm, or 60 μm. The material of the adhesive layer 113 is not limited, and for example, a pressure sensitive adhesive or a heat sensitive adhesive may be used as the adhesive layer 113 . The structure of the adhesive layer 113 may be the same as or different from the adhesive layer 13 described below.

The thickness of the film layer 2 is not limited. The thickness of the film layer 2 may vary depending on the use of the sheet. For example, when the sheet is used as a graphic sheet or a decorative sheet for the interior and exterior, the lower limit of the thickness of the film layer 2 can be 0.05mm, and the upper limit of the thickness can be, for example, 0.4mm, 0.35mm, 0.3mm , or 0.2mm. The thickness of the film layer 2 can be determined considering the ease of handling of the sheet 1 or the film layer 2 .

The fastener layer 12 is a sheet-like member for adhering the sheet 1 to any tangible object. Fastener layer 12 includes a first hook and loop fastener member. The sheet 1 is adhered to a tangible object by allowing the first hook and loop fastener member to engage with a second hook and loop fastener member secured to the tangible object. The specific structure of the first hook-and-loop fastener member is not limited as long as the first hook-and-loop fastener member is engageable with the second hook-and-loop fastener member. For example, the first hook and loop fastener member may be attached to a loop material, ie, a female member. In this case, the second hook and loop fastener member may be tied with a hook material, ie a male member. Alternatively, the first hook and loop fastener member can be tied with a hook material, and in this case, the second hook and loop fastener member can be tied with a loop material. The first hook-and-loop fastener member and the second hook-and-loop fastener member may be Dual Lock (trade name) fasteners, and in this case, both the first hook-and-loop fastener member and the second hook-and-loop fastener member are Mushroom hook material can be attached. Alternatively, both the first hook and loop fastener member and the second hook and loop fastener member may comprise both a hook material and a loop material on the same plane.

Fastener layer 12 includes loop material 21 as a first hook and loop fastener component. The ring material 21 may include a base 21a and a ring layer 21b formed on a first surface of the base 21a, as shown in FIG. 1 . Alternatively, the loop material 21 may consist only of the loop layer 21b, such as a non-woven fabric. When the loop material 21 includes the base 21 a and the loop layer 21 b, the surface on which the loop layer 21 b exists is the engaging surface of the loop material 21 . The loop material 21 may comprise a knit or a non-woven fabric that readily engages the hook material.

From the viewpoint of achieving superior engagement strength while maintaining superior mechanical strength, the lower limit of the thickness of the base 21 a may be 5 μm, 10 μm, 15 μm, or 20 μm. From the perspective of achieving lower cost and flexibility, the upper limit of the substrate thickness can be 100 μm, 85 μm, 70μm, or 55μm. From the viewpoint of achieving superior engagement strength and achieving its durability during repeated attachment and detachment while maintaining superior mechanical strength, the lower limit of the thickness of the ring layer 21b may be 0.5mm, 1.0mm, or 1.5mm, or more . From the perspective of achieving lower cost and superior flexibility, the upper limit of the thickness of the ring layer can be 20mm, 10mm, or 2.0mm.

The lower limit of the basis weight of the ring material 21 may be, for example, 10g/m ² , 15g/m ² , or 17g/m ² , and the upper limit thereof may be, for example, 80g/m ² , 50g/m ² , 30g/m ² , 25g/m 2 ² , or 22g/m ² . This basis weight can be determined based on various points of view, such as maintenance of engagement force with the second hook and loop fastener member, ease of release from the second hook and loop fastener member, and production cost.

When the loop material 21 is a knitted fabric, the stitch density may be 1 stitch/1 mm. The fiber material used to produce loop material 21 may be monofilament strands, multifilament strands, or a combination thereof. It should be noted that multifilament strands can be obtained by making single yarns, eg by winding together two or more strands. The height of the looped stack is not limited; however, for example, its lower limit may be 0.5mm and its upper limit may be 0.8mm or 0.7mm. The height of the loop stack is a dimension measured from the first face of the base 21a to the apex of the loop. This height of the loop stack can be determined based on various considerations, such as maintenance of engagement force with the second hook and loop fastener member and ease of disengagement from the second hook and loop fastener member.

The material of the knitted fabric is not limited, and can be selected from poly(tetrafluoroethylene) (PTFE, such as TEFLON (trade name)), aramid (such as KEVLAR (trade name)), polyester, polypropylene, etc., for example. , and at least one type of the group consisting of nylon. In order to manufacture a desired knitted fabric, a material with limited elastomeric properties can be used a fiber material. The elastomeric coating composition contains at least one elastomeric polymer dissolved in at least one solvent. Representative examples of elastomeric polymers include KRATON (trade name) polymers (e.g., styrene), urethanes, acrylics, silicones, olefins, and other combinations of copolymers, block copolymers, and the like .

When the loop material 21 is a nonwoven fabric, the nonwoven fabric may be a short fiber nonwoven fabric or a long fiber nonwoven fabric. "short fiber nonwoven fabric (short fiber nonwoven fabric)" means a nonwoven fabric in which at least a major part (greater than 50% by mass of the constituent fibers) is configured by staple fibers (in other words, staple fibers), And it is different from non-woven fabrics configured by filaments (in other words, long fibers). Staple fiber nonwovens include carded nonwovens, airlaid nonwovens, wetlaid nonwovens, and the like. On the other hand, long-fiber nonwovens generally include spunbonded nonwovens and the like. Staple fibers can typically have a fiber length of several hundred mm or less; however, the length is not so limited.

When a nonwoven fabric is used for the loop material 21, the nonwoven fabric can have air permeability. Examples of nonwoven fabrics include natural and synthetic fibers formed by well known production methods such as spunbond (SB), meltblown (MB), spunbond meltblown spunbond (SMS), and spunbonding. Examples of the material of the nonwoven fabric include those selected from nylon, polyester, polypropylene, polyurethane, ethylene vinyl acetate (EVA), polyethylene, polyamide, polylactic acid, rayon, copolymers or mixtures thereof fibers, and at least one type of the group consisting of natural fibers. From the viewpoint of preventing breakage (such as fiber shedding) of the loop layer 21b due to engagement with the second hook and loop fastener member, the loop layer 21b may include a There is high-strength polyamide. Alternatively, the base 21a and/or the ring layer 21b may include polyethylene, polypropylene, polyester, or the like when considering material cost or environmental safety.

Regardless of the type and material of the loop material 21, the mating surface of the loop material 21 may have an area that does not include the loop. In this disclosure, for convenience, the region not including the loop is referred to as a "loop-free region". The method of forming the ring-free region is not limited, and heat sealing, for example, may be employed. It should be noted that "heat sealing" indicates partial suppression of ring erection, for example by heat sealing and/or heat pressing using a heated roller or the like. The ratio of the area of the loop-free region to the total area of the loop material 21 can be determined based on various viewpoints, such as maintenance of engagement force with the second hook-and-loop fastener member, ease of release from the second hook-and-loop fastener member, and Cost of production. For example, the lower limit of the ratio may be 5%, 10%, 15%, 20%, 25%, or 30, and the upper limit thereof may be 50%, 45%, 40%, 35%, or 30%. The shape and arrangement of the acyclic region are not limited. For example, the acyclic regions may be arranged in the form of a plurality of lines extending parallel to each other, may be arranged in a grid-like form, may be regularly or irregularly scattered, or may be randomly arranged.

The adhesive layer 13 is a layer bonding the film layer 2 and the fastener layer 12 . An adhesive layer 13 is provided on at least a part of the back side 2b of the film layer 2, and a sheet in which the film layer 2 and the fastener layer 12 are combined is formed by fixing the fastener layer 12 to the back side 2b via this adhesive layer 13 Material 1. The adhesive layer 13 may be provided at at least a part of the back side 2b of the film layer 2, and in this case the adhesive layer 13 may be provided at one or several positions on the back side 2b. When the adhesive layer 13 is only provided at a part of the back side 2b of the film layer 2, the fastener layer 12 may be provided at a part of the back side 2b, and for example may be provided at a part or the whole of the surrounding edge. Alternatively, the fastener layer 12 may be provided on the back surface 2b as a whole. The adhesive layer 13 may be provided on the entirety of the rear face 2b of the film layer 2, and in this case the fastener layer 12 is provided on the entirety of the rear face 2b.

The material of the adhesive layer 13 is not limited. For example, a pressure-sensitive adhesive or a heat-sensitive adhesive can be used as the adhesive layer 13 .

Examples of the pressure-sensitive adhesive used in the adhesive layer 13 include acrylic-based pressure-sensitive adhesives. The acrylic-based pressure-sensitive adhesive contains at least one type of adhesive acrylic-based polymer selected from the group consisting of adhesive acrylic-based homopolymers and copolymers. For example, acrylic-based pressure-sensitive adhesives contain an adhesive homopolymer of a monomer or an adhesive copolymer of two or more such monomers selected from the group consisting of methyl acrylate, butyl acrylate, Group consisting of isopentyl acrylate, isooctyl acrylate, 2-ethylhexyl acrylate, acrylic acid, methacrylic acid, acrylamide, methacrylamide, acrylonitrile, and ethacrylonitrile.

Adhesive homopolymers and copolymers can be prepared by polymerizing the above-mentioned monomers or a mixture of the above-mentioned monomers by a common free-radical polymerization such as solution polymerization, suspension polymerization, emulsion polymerization , or overall aggregation. Examples of usable polymerization initiators include organic peroxides (such as benzoyl peroxide, lauryl peroxide, and bis(4-tertiary butylcyclohexyl)peroxydicarbonate) and azo Based polymerization initiators (such as 2,2'-azobisisobutyronitrile, 2,2'-azobis(2-methylbutyronitrile), 2,2-azobis(2-methylpropionic acid ) dimethyl ester, 4,4'-azobis(4-cyanovaleric acid), 2,2-azobis(2-methylpropionate) dimethyl ester, and azobis(2,4- Dimethylvaleronitrile) (AVN)).

In one embodiment, the lower limit of the weight average molecular weight of the adhesive homopolymer or copolymer can be about 200,000 or about 400,000, and the upper limit can be about 1,000,000 Or about 700,000. The weight average molecular weight of the binder homopolymer or copolymer was determined by gel permeation chromatography (GPC) by using standard polystyrene.

The adhesive acrylic polymer can be cross-linked by a cross-linking agent. Examples of usable crosslinking agents include isocyanate compounds, melamine compounds, poly(meth)acrylate compounds, epoxy compounds, amide compounds, and bisamide compounds, and diaziridine derivatives of dibasic acids such as 1,1'-Isophthaloyl-bis(2-methylaziridine). As the crosslinking agent, isocyanate compounds such as hexyl diisocyanate can be used, and bisamide compounds such as 1,1′-isophthalyl-bis(2-methylaziridine) can be used. The added amount of the crosslinking agent also depends on the type of the crosslinking agent; however, the added amount of the crosslinking agent is generally from 0.1 to 10 parts by mass per 100 parts by mass of the acrylic-based pressure-sensitive adhesive.

A smaller thickness of the adhesive layer 13 is beneficial to non-combustibility, and a larger thickness of the adhesive layer 13 increases adhesive strength. From the standpoint of balancing non-combustibility and adhesive strength, the lower limit of the thickness of the adhesive layer 13 may be, for example, 10 μm or 20 μm, and the upper limit thereof may be 200 μm or 100 μm.

The fastener layer 12 of the sheet 1 includes loop material 21 as the first hook and loop fastener member. On the support surface 90 of the tangible object, the hook material 22 is secured as a second hook and loop fastener member corresponding to this fastener layer 12 (loop material 21 ). The attachment of the second hook and loop fastener member to the support surface 90 is not restricted. The hook material 22 may be provided only at a portion corresponding to the shape and area of the sheet 1 , and for example, the hook material 22 may be provided only at a portion corresponding to a part or the whole of the peripheral edge of the sheet 1 . Alternatively, the hook material 22 may be provided on the whole corresponding to the shape and area of the sheet 1 . piece The shape and area of the first hook and loop fastener (loop material 21 ) of material 1 may be different from the shape and area of the second hook and loop fastener (hook material 22 ) on the support surface 90 . Thus, when the sheet 1 is adhered to the support surface 90, a portion of the first hook and loop fastener (loop material 21) does not have to engage the second hook and loop fastener (hook material 22). Furthermore, a portion of the second hook and loop fastener (hook material 22 ) does not have to engage the first hook and loop fastener (loop material 21 ) when attached. It should be noted that although not shown in FIG. 1 , the hook material 22 may be fixed on the supporting surface 90 by an adhesive layer or the like.

By using the first hook-and-loop fastener and the second hook-and-loop fastener, the sheet 1 adhered to the support surface 90 can be easily detached, and moreover, the detached sheet 1 can be adhered to the support surface 90 again. That is, as indicated by arrow A in FIG. 1 , the sheet 1 can be attached and detached at will. As shown in FIG. 3 , by providing a second hook and loop fastener member (hook material 22 ) around the outer edge of the sheet 1 , it is repeatable to spread the sheet 1 on the support surface 90 and to roll and secure the sheet 1 . Furthermore, after detaching the sheet 1 that has been adhered to a tangible object, the sheet 1 can be adhered to another tangible object or can be adhered to the same place again later. In other words, the sheet 1 can be reused without impairing the quality of the sheet 1 .

By appropriately setting the 90° peel adhesion strength (90° peel strength) of the sheet 1 , it is possible to maintain the engaging force while the sheet 1 is adhered, and at the same time achieve easy detachment of the sheet 1 . The 90° peel adhesion strength is the strength measured when the second hook and loop fastener member is detached from the sheet 1, and can be measured by a method specified in JIS Z 0237, for example. From the viewpoint of maintaining the meshing force, the lower limit of the 90° peel adhesion strength may be, for example, 0.5 N/25.4 mm or 1.0 N/25.4 mm. From the point of view of achieving easy detachment, the 90°peel adhesive strength The upper limit may be, for example, 8N/25.4mm, 6N/25.4mm, 4N/25.4mm, or 2N/25.4mm.

FIG. 4 is a cross-sectional view of a sheet 1A according to an embodiment. The sheet 1A includes a film layer 2 , a fastener layer 12A, and an adhesive layer 13 . The film layer 2 and the fastener layer 12A are bonded through the adhesive layer 13 . Sheet 1A differs from Sheet 1 in that the first hook and loop fastener member does not include a loop material, but includes a hook material. The fastener layer 12A different from the sheet 1 is specifically described below.

The fastener layer 12A is a sheet-like member for adhering the sheet 1A to any tangible object, and includes a hook material 22 as the first hook-and-loop fastener member. The fastener layer 12A may be provided on a part of the back side 2b of the film layer 2 or may be provided on the entirety of the back side 2b.

In one example of FIG. 4, the loop material 21 corresponding to the fastener layer 12A (hook material 22) as the second hook and loop fastener component is secured to the support surface 90 of the tangible object. The place of attachment of the second hook and loop fastener member on the support surface 90 is motorically selectable, which is the same in the case of sheet 1 . The shape and area of the first hook and loop fastener (hook material 22 ) of sheet 1A may be different from the shape and area of the second hook and loop fastener (loop material 21 ) on support surface 90 . Thus, when the sheet 1A is adhered to the support surface 90, a portion of the first hook and loop fastener (hook material 22) does not have to engage the second hook and loop fastener (loop material 21). Furthermore, it is not necessary for a portion of the second hook and loop fastener (loop material 21 ) to engage the first hook and loop fastener (hook material 22 ) when adhered. As shown by arrow A in FIG. 4, the sheet 1A can be attached and detached at will. note Note that, although not shown in FIG. 4, the loop material 21 may be secured to the support surface 90 by an adhesive layer or the like.

The material of the hook material 22 is not limited. For example, the material is a thermoplastic resin, and specifically may be polypropylene resin (PP), polyethylene resin (PE), vinyl chloride resin (PVC), ethyl methyl methacrylate resin (EMMA), ethyl acrylate Resin (EA), ethylene vinyl acetate copolymer (EVA) resin, a mixture of two or more types thereof (for example, a mixture of polypropylene resin (PP) and polyethylene resin (PE), polypropylene resin (PP) A mixture of resin (PP) and ethyl methyl methacrylate resin (EMMA), a mixture of polypropylene resin (PP) and ethyl acrylate resin (EA), a copolymer of polypropylene resin (PP) and ethylene vinyl acetate A mixture of poly(EVA) resin, a mixture of polyethylene resin (PE) and ethyl methyl methacrylate resin (EMMA), a mixture of polyethylene resin (PE) and ethyl acrylate resin (EA), and A mixture of polyethylene resin (PE) and ethylene vinyl acetate copolymer (EVA) resin). Note that examples of PE include low-density polyethylene (LDPE), high-density polyethylene (HDPE), and linear low-density polyethylene (LLDPE). Additives or the like may be added to these resins as needed.

The hook material 22 includes a base 22a and a plurality of hooks 22b provided on the first surface of the base 22a. The surface on which the hook 22b exists is the engaging surface of the hook material 22 . The shape of the hook 22b is not limited as long as the engaging force is satisfied, and examples thereof include a mushroom shape, a hook shape, a T shape, or a J shape.

The size of the hook material 22 can be determined based on various considerations, such as reduction in sheet weight, maintenance of engagement force with the second hook and loop fastener member, ease of release from the second hook and loop fastener member, and production cost.

The lower limit of the thickness of the hook material 22 may be 60 μm, 90 μm, or 115 μm, and the upper limit thereof may be 600 μm, 550 μm, 500 μm, 350 μm, 320 μm, or 300 μm. The bulkiness of the sheet 1A fixed on the support surface 90 can be suppressed by such a reduction in thickness of the hook material 22 . When the hook material 22 is used as the first hook and loop fastener member, the sheet 1A is thin and light. Therefore, the flexibility of the sheet 1A can be ensured, and the portability and handleability of the sheet 1A can be further enhanced.

The lower limit of the thickness of the substrate 22a may be 20 μm, 30 μm, or 35 μm, and the upper limit of the thickness may be 100 μm, 80 μm, 70 μm, or 60 μm. The lower limit of the height of the hook 22b may be 40 μm, 60 μm, or 80 μm, and the upper limit of the height thereof may be 500 μm, 400 μm, 300 μm, 280 μm, or 260 μm.

When the hook 22b has a mushroom shape, the maximum width and the minimum width of the stalk portion (stalk) are not limited. For example, the lower limit of the maximum width of the stalk portion may be 70 μm or 100 μm, and the upper limit thereof may be 250 μm, 200 μm, or 190 μm. The minimum width of the stalk portion may have a lower limit of 50 μm or 80 μm, and an upper limit of 210 μm, 200 μm, 195 μm, or 185 μm. The maximum width of the cap portion (cap) is not limited, its lower limit may be 70 μm, 100 μm, or 200 μm, and its upper limit may be 500 μm, 450 μm, 400 μm, 350 μm, or 300 μm. The lower limit of the protrusion of the cap portion from the tip of the stalk portion may be 5 μm or 10 μm, and the upper limit thereof may be 90 μm, 85 μm, 80 μm, or 75 μm.

Regardless of the type and material of hook material 22, the engaging surface of hook material 22 may have an area that does not include hook 22b. In this disclosure, for convenience, the region not including the hook is referred to as a "hook-free region". The area of the hook-free area is relatively The ratio to the total area of hook material 22 may be determined based on various points of view, such as maintenance of engagement force with the second hook and loop fastener member, ease of release from the second hook and loop fastener member, and production cost. For example, the lower limit of the ratio may be 5%, 10%, 15%, 20%, 25%, or 30, and the upper limit thereof may be 50%, 45%, 40%, 35%, or 30%. The shape and configuration of the hook-free area are not limited. For example, the hook-free regions may be arranged in the form of a plurality of lines extending parallel to each other, may be arranged in a grid-like form, may be regularly or irregularly scattered, or may be randomly arranged.

Similar to the sheet 1, by appropriately setting the 90° peel adhesive strength of the sheet 1A, it is possible to maintain the engaging force while the sheet 1A is posted, and simultaneously achieve easy detachment of the sheet 1A. The numerical range (upper limit and lower limit) for the 90° peel adhesion strength of Sheet 1A can be set similarly to that of Sheet 1 .

When the hook material 22 is used as the second hook and loop fastener member corresponding to the sheet 1 depicted in FIG. 1 , the dimensions of the hook material 22 can be determined similarly to the case of the sheet 1A. For example, the size of the hook material 22 may take into account maintaining the engagement force between the first hook and loop fastener component and the second hook and loop fastener component, ease of detaching the sheet 1A from the second hook and loop fastener component, or production cost. And judge. For example, the lower limit of the thickness of the hook material 22 may be 60 μm, 90 μm, or 115 μm, and the upper limit thereof may be 600 μm, 550 μm, 500 μm, 350 μm, or 320 μm. The lower limit of the thickness of the base of the hook material 22 may be 20 μm, 30 μm, or 35 μm, and the upper limit of the thickness may be 100 μm, 80 μm, 70 μm, or 60 μm. The lower limit of the height of each hook can be 40 μm, 60 μm, or 80 μm, and the upper limit of the height can be 500 μm, 400 μm, 300 μm, 280 μm, or 260 μm.

The method of providing each of sheets 1 and 1A is not limited. For example, each of sheets 1 and 1A may be provided separately or may be provided as a set for a sheet together with the second hook and loop fastener member. A kit for a sheet of material is an article comprising at least one of a sheet of material 1 and a second hook and loop fastener member or an article of at least a sheet of material 1A and a second hook and loop fastener member.

Sheets 1 and 1A can be used for various purposes. Sheets according to the present disclosure are described in further detail below by using some embodiments as examples.

first embodiment

In a first embodiment, a sheet according to an embodiment of the present disclosure is used in a graphic sheet. The structure of the graphic sheet 10 is described with reference to FIG. 5 . FIG. 5 is a cross-sectional view of the graphic sheet 10. As shown in FIG. The graphic sheet 10 is a printed medium for visually presenting a graphic (which is any visual representation) to people. Graphic content is not limited, and examples thereof include text, symbols, diagrams, illustrations, photographs, or a combination of two or more elements selected from these. Graphical uses are also not limited, and examples thereof include advertising, entertainment, art, education, warning, warning, or a combination of two or more uses selected from these.

The graphic sheet 10 includes a printing film layer 11 , a fastener layer 12 , and an adhesive layer 13 . FIG. 5 schematically shows a graphic pattern (printed layer) 80 printed on the printed film layer 11 .

The printed film layer 11 is a sheet-like member having a printed surface 11a on which a graphic pattern 80 is printed. The printing film layer 11 is an example of the film layer 2, and the printing surface 11a is an example of the front surface 2a. The back side 11b of the printed film layer 11 is an example of the back side 2b. Materials contained in the printing film layer 11 are not limited. Examples of membranes that can be used include A film containing an acrylic resin including polymethyl methacrylate (PMMA), polyurethane (PU), polyvinyl chloride (PVC), polycarbonate (PC), polyolefins such as polyethylene (PE) and polypropylene (PP)), polyesters (such as polyethylene terephthalate (PET) and polyethylene naphthalate), fluororesins, and copolymers (such as ethylene vinyl acetate copolymer (EVA), ethylene acrylic acid copolymer, ethylene ethyl acrylate copolymer, ethylene vinyl acetate copolymer, acrylonitrile butadiene rubber (NBR), or acrylonitrile-butadiene-styrene copolymer (ABS), or one of the mixtures).

From the standpoint of strength, impact resistance, and the like, those containing polyurethane, polyvinyl chloride, polyethylene terephthalate, acrylonitrile-butadiene-styrene copolymer, or polycarbonate A film can be used as the printed film layer 11 . The printing film layer 11 may serve as a receptor layer for printing ink and/or as a protective layer to protect the surface of the substrate from external punctures, impacts, and the like. When the printing film layer 11 is used as a receptor layer of printing ink, from the viewpoint of printability, solvent resistance (such as alcohol resistance), and the like, the printing film layer 11 can be made of polyvinyl chloride or polyurethane A film of esters. In order to impart flame retardancy to the graphic sheet 10, the print film layer 11 may contain polyvinyl chloride.

The printed film layer 11 may be transparent or opaque or may be colored. In one embodiment, the printed film layer 11 may be colored white in view of the color development and sharpness of images produced by the printed layer disposed directly or indirectly on the printed film layer.

The printing film layer 11 may be a single layer or a laminate of multiple layers. When the printing film layer 11 includes a plurality of layers, the printing film layer 11 may have a structure as shown in FIG. 2 , that is, a structure including a supporting layer. Printed film layer 11 can also contain strengthening agent (such as plasticizer, filler, and glass fiber), pigment (such as zinc oxide and oxide Titanium), and additives (such as antioxidants, UV absorbers, heat stabilizers, and non-combustible additives).

The printing film layer 11 may include a brightness enhancing layer. As a brightening layer, the printing film layer 11 may also contain a metal film formed by vacuum deposition, sputtering, ion plating, electroplating, or the like, and the metal film contains a metal such as aluminum, nickel, gold, platinum, etc. , chromium, iron, copper, tin, indium, silver, titanium, lead, zinc, or germanium, or their alloys or compounds.

The printing film layer 11 may include a surface protection layer covering the printing surface 11a. The surface protection layer can be obtained by laminating a resin film (such as polyester, such as polyethylene terephthalate (PET), polyvinyl chloride, polyimide, polyamine) on the printing surface 11a directly or via a bonding layer. formate, acrylic resin, epoxy resin, or fluororesin) or by applying a resin composition to the printing surface 11a and drying it. Depending on the intended application, a gloss finish or a matte finish can be applied to the surface protection layer.

The printed film layer 11 may have recesses and protrusions formed by embossing or debossing. The pattern or design of the recesses and protrusions may be regular or irregular without particular limitation, and examples thereof include parallel lines, wood grain, grainy texture, cobblestone, cloth texture, pear skin, leather dyed pattern, matte surface, Thin lines, spins, words, symbols, and geometric forms.

The thickness of the printing film layer 11 is not limited, for example, the lower limit of the thickness can be 0.05 mm, and the upper limit of the thickness can be 0.4 mm, 0.35 mm, 0.3 mm, or 0.2 mm. The thickness of the printed film layer 11 can be determined in consideration of the ease of handling of the graphic sheet 10 or the printed film layer 11 .

The graphic pattern 80 can be formed on the printing surface 11a by using a colorant such as toner or ink. Techniques and equipment for printing the graphic pattern 80 are not limited, and examples thereof include inkjet printing, gravure printing, electrostatic printing, screen printing, or offset printing. As printing inks, solvent-based inks or UV-curable inks can be used. Printed layers of various thicknesses can be used. When solvent-based inks are used, generally, the lower thickness limit can be about 1 μm or about 2 μm, and the upper thickness limit can be about 10 μm or about 5 μm. When using UV curable inks, the lower thickness limit can be about 1 μm or about 5 μm, and the upper thickness limit can be about 50 μm or about 30 μm.

The structure of the fastener layer 12 and the adhesive layer 13 is the same as that of the sheet 1 . With the fastener layer 12, the graphic sheet 10 can be adhered to where a graphic pattern 80 is applied. It should be noted that "place for posting" is an example of a tangible object to which the sheet is adhered. Printed graphic sheet 10 can be adhered to a surface of any physical object indoors or outdoors, and can be adhered, for example, to a surface of an exterior wall, interior wall, ceiling, floor, pillar, glass, bulletin board, or other structure. The duration of the graphic sheet 10 posting is not limited and may be a short or long period of time.

Also with respect to the graphic sheet 10, the attachment of the second hook and loop fastener member to the support surface 90 is not limited. In addition, the shape and area of each of the first hook-and-loop fastener (loop material 21 ) and the second hook-and-loop fastener (hook material 22 ) are not limited. In addition, the positional relationship of the first hook-and-loop fastener (loop material 21 ) and the second hook-and-loop fastener (hook material 22 ) is not limited. As indicated by arrow A in FIG. 5, the graphic sheet 10 can be attached and detached at will. The 90° peel adhesion strength (90° peel strength) of graphic sheet 10 is similar to that of sheets 1 and 1A.

The method of providing the graphic sheet 10 is not limited. For example, the graphic sheet 10 may be provided alone or may be provided as a graphic kit with the second hook and loop fastener member (hook material 22). A graphic kit is an article comprising at least a graphic sheet 10 and a second hook and loop fastener member (hook material 22).

second embodiment

Likewise, in a second embodiment, the sheet according to an embodiment of the present disclosure is used in a graphic sheet. The structure of the graphic sheet 10A is described with reference to FIG. 6 . Fig. 6 is a cross-sectional view of the graphic sheet 10A. The graphic sheet 10A differs from the graphic sheet 10 according to the first embodiment in that the graphic sheet 10A does not include a loop material but includes a hook material as a first hook and loop fastener member.

The graphic sheet 10A includes a printing film layer 11 , a fastener layer 12A, and an adhesive layer 13 . FIG. 6 schematically shows the graphic pattern 80 printed on the printing surface 11 a of the printing film layer 11 .

The structures of the fastener layer 12A and the adhesive layer 13 are the same as those in the sheet 1A. Also for the graphic sheet 10A, the shape and area of each of the first hook-and-loop fastener (hook material 22 ) and the second hook-and-loop fastener (loop material 21 ) are not limited. In addition, the positional relationship of the first hook-and-loop fastener (hook material 22 ) and the second hook-and-loop fastener (loop material 21 ) is not limited. As indicated by arrow A in FIG. 6, the graphic sheet 10A can be attached and detached at will. The 90° peel adhesion strength of Graphic Sheet 10A is similar to that of Sheets 1 and 1A.

The method of providing the graphic sheet 10A is not limited. For example, graphic sheet 10A may be provided separately. Alternatively, a graphic kit comprising at least the graphic sheet 10A and the second hook and loop fastener member (loop material 21 ) may be provided.

third embodiment

In a third embodiment, a sheeting according to an embodiment of the present disclosure is used in a projector screen. FIG. 7 is a diagram showing an example of use of the projector screen 31 according to this embodiment. Projector screen 31 is an item onto which an image from projector 200 is projected. The image projected onto the projector screen 31 can be a moving image or a still image. Image content is not limited. Projector screen 31 has the same structure as sheet 1 or sheet 1A, and is adhered to support surface 90 . As an example, the film layer 2 may include a white PVC film, the surface of which has been matted, and a supporting layer for supporting the PVC film and is formed of PET. As the PVC film, Scotchcal (trade name) film available from 3M can be used. Of course, the structure of the film layer 2 is not limited to the above, as long as it has light reflection properties or the like to be used as a film of the projector screen 31 . The image irradiated from the projector 200 is projected on the surface 2 a of the film layer 2 .

(fourth embodiment)

In a fourth embodiment, a sheet according to an embodiment of the present disclosure is used in a whiteboard sheet. FIG. 8 is a diagram showing a usage example of the whiteboard sheet 32 according to this embodiment. A whiteboard sheet 32 is attached to which a writing instrument (such as a marker) can record One of the items written. The written content on the whiteboard sheet 32 can be erased. Whiteboard sheet 32 has the same structure as Sheet 1 or Sheet 1A, and is adhered to support surface 90 . Examples of film layer 2 include whiteboard film PWF-500 and WH-200 available from 3M; A film with writeability, erasability, and anti-glare properties. The written content is recorded on the surface 2 a of the film layer 2 .

(fifth embodiment)

In a fifth embodiment, a sheet according to an embodiment of the present disclosure is used in a sheet for post-it notes. FIG. 9 is a diagram showing an example of use of the sheet 33 for post-it notes. The sheet 33 for post-it notes is an item on which post-it notes are posted. The sheet 33 for post-it notes has the same structure as the sheet 1 or the sheet 1A, and is adhered to the supporting surface 90 . Examples of the film layer 2 include Scotchcal (trade name) graphic film IJ1220N available from 3M; however, as described above, the structure of the film layer 2 is not limited as long as it is a post-it note (such as various Post-it notes available from 3M). -it (trade name) a film to which it (trade name) sticky note) can be adhered. The surface 2a of the film layer 2 is used as a surface for pasting post-it notes.

The sheet according to an embodiment of the present disclosure may have two functions of a whiteboard sheet 32 and a sheet 33 for post-it notes. That is, one sheet 1 or sheet 1A can be used to perform both recording of content written by a writing instrument and posting of post-it notes.

(sixth embodiment)

In the sixth embodiment, an example is described in which a graphic sheet 10 is adhered to a support surface 90 which can withstand sewing. More specifically, graphic sheet 10 is adhered to clothing or fabric. FIG. 10 is a diagram illustrating an example of use of the graphic sheet 10 . In this example, support surface 90 is garment 220 constructed of fabric. The hook material 22 used as the second hook and loop fastener member is secured to the support surface 90 (ie, clothing or fabric) by sewing. Graphic sheet 10 is adhered to hook material 22 . In the example of FIG. 10, the graphic sheet 10 is used as a number bib for a race; however, the function of the graphic sheet 10 is not limited. An example of the film layer 2 includes Scotchlite (trade name) reflective graphic film 780mC-10R available from 3M; however, as described above, the structure of the film layer 2 is not limited thereto.

By attaching the sheet according to an embodiment of the present disclosure to clothing or fabric in a manner in which the sheet can be attached and detached, the sheet can be attached and detached more easily than when using safety pins. material. In addition, since safety pins are not used, loss of comfort when the garment is worn is avoided. Furthermore, by using the sheet according to an embodiment of the present disclosure, the sheet adhered to the fabric can be reused.

Although Figure 10 depicts a graphic sheet 10, a graphic sheet 10A may be used.

(seventh embodiment)

In a seventh embodiment, a sheet according to an embodiment of the present disclosure is used in a decorative sheet 34 for interior and exterior, which can be used for at least one of the interior or exterior of a building Ornamental sheet. This decorative sheet 34 for interior and exterior can be used to decorate at least one of the inside and outside surfaces of a building A piece of one. The decorative sheet 34 for the interior and exterior can be used as a cover to hide at least a part of the recesses and protrusions formed on an interior or exterior trim. FIG. 11 is a diagram showing an example in which a decorative sheet 34 for interior and exterior is used as a cover. In this example, the support surface 90 has a recessed portion 91 and a raised portion 92 . The decorative sheet 34 for interior and exterior has the same structure as sheet 1 or sheet 1A, and is adhered to a support surface 90 such as a wall. The decorative sheet 34 for the interior and exterior may have a size necessary to cover the concave portion 91 or the protruding portion 92 . The decorative sheet 34 for the interior and exterior can be adhered to the second hook and loop fastener member by securing at least a portion of the peripheral edge portion of the second hook and loop fastener member at the recessed portion 91 and the protruding portion 92 , to hide the concave portion 91 and the protruding portion 92 . Examples of the film layer 2 for interior and exterior decorative sheets include DI NOC (trade name) film available from 3M; however, the structure of the film layer 2 is not limited thereto. For example, the film layer 2 may be a decorative film by subjecting a chlorinated vinyl resin layer or an olefin-based resin layer to decorative printing by screen printing or gravure printing, and then subjecting the surface to emboss processing and the like. formed by.

FIG. 12 shows hidden diagrams of the concave portion 91 and the protruding portion 92 and corresponds to the XII-XII line cross-section of FIG. 11 . Figure 12 shows an example where the sheet 1 is used as the decorative sheet 34 for the interior and exterior, and the hook material 22 is used as the second hook and loop fastener member. By the first hook-and-loop fastener member and the second hook-and-loop fastener member, the decorative sheet 34 for the interior and exterior can be used for the interior and exterior. The decorative sheet 34 is not concave along the shape of the concave portion 91. Adheres to the support surface 90 in an inward manner. Due to the decorative sheet 34 adhered to the supporting surface 90 for the interior and exterior to maintain In a flat state, the presence of the concave portion 91 can be concealed by the decorative sheet 34 for the interior and exterior. Furthermore, a space is formed between the support surface 90 and the housing by the first hook and loop fastener member and the second hook and loop fastener member. Therefore, the decorative sheet 34 for the interior and exterior can be adhered to the support in such a manner that the decorative sheet 34 for the interior and exterior does not protrude along the shape of the protruding portion 92 while containing the protruding portion 92 in this interval. Surface 90. Since the decorative sheet for interior and exterior 34 adhered to the support surface 90 maintains a flat state, the presence of the protruding portion 92 can be concealed by the decorative sheet for interior and exterior 34 .

Figures 11 and 12 illustrate an example where the decorative sheet 34 for the interior and exterior is used to hide the recesses and protrusions on the support surface 90; however, the decorative sheet 34 for the interior and exterior can be adhered To a support surface 90 that has no recesses and no protrusions. In this case, the second hook and loop fastener member may be secured to substantially all of the support surface 90 .

(eighth embodiment)

As noted above, a kit for a sheet of material according to an embodiment of the present disclosure may be provided that includes the sheet of material and a second hook and loop fastener member. The kit for a sheet of material may further include an adhesive layer having low tack and provided between the second hook and loop fastener member and a support surface. In the eighth embodiment, a set for a sheet provided with an adhesive sheet having an adhesive layer having low adhesiveness is described.

It often happens that a second hook and loop fastener member secured to a support surface must be detached after use. However, when the supporting surface is a wall on which wallpaper of polyvinyl chloride foam or the like is adhered, the supporting surface is very easily damaged. Therefore, when the second hook and loop fastener is peeled off, the wallpaper is often peeled off together, and the wall surface is often damaged. The eighth embodiment relates to a structure for a set of sheets provided with an adhesive sheet including an adhesive layer having low adhesiveness, the adhesive layer allowing The second hook and loop fastener member is stripped without damaging this vulnerable support surface.

A set 100 for a sheet according to the eighth embodiment includes: a sheet 1; a hook material 22, which is a second hook and loop fastener member; and an adhesive sheet 40, which includes a Adhesive layer 40b. FIG. 13 is a diagram illustrating an example of a structure of a set 100 for sheets.

An adhesive layer 40b having low tack may be provided on the side of the second hook and loop fastener member that is in contact with the support surface 90 . "Low tackiness (Low tackiness)" indicates that when the adhesive layer 40b is peeled off from the support surface 90, the support surface 90 is not damaged by the adhesive sheet 40, that is, it indicates that there is no damage between the support surface 90 and the adhesive sheet. Low adhesive strength to the extent that 40 peels off together.

The adhesive sheet 40 includes: a base material layer 40a; an adhesive layer 40b having low adhesiveness and provided on the first main surface of the base material layer 40a; and an adhesive layer 40c provided on the base material layer 40a on the second main face. The adhesive layer 40b is in contact with the support surface 90 when the kit for sheets 100 is used. The hook material 22 is fixed on the adhesive layer 40c.

The material of the base material layer 40a is not limited. For example, the base material layer 40a may be made of polyethylene terephthalate (PET), polyurethane, ethylene vinyl acetate (EVA), polyethylene (unoriented), oriented polypropylene (OPP), paper material, or fabric.

The material of the adhesive layer 40b is not limited. For example, the adhesive layer 40b may be formed of an acrylic-based, rubber-based, or silicone-based adhesive. Among them, silicone-based adhesives exhibit low adhesive strength, while the necessary holding properties can be achieved by high wettability, albeit with low adhesive strength. Therefore, by forming the adhesive layer 40 b using a silicone-based adhesive, the adhesive sheet 40 can be peeled off from the supporting surface 90 without damaging the supporting surface 90 .

One example of a method of manufacturing the adhesive sheet 40 is described. For example, to manufacture the adhesive sheet 40, a water-based polyetherurethane primer or a solvent-based polyetherurethane primer is used as the primer. As a water-based polyetherurethane primer, HYDRAN WLI-602 (commercially available from DIC Corporation) was diluted to a concentration of 10 wt.% using ultrapure water for use. As a solvent-based polyether urethane primer, polyurethane 3552 (commercially available from Arakawa Chemical Industries, Ltd.) was diluted to a concentration of 10 wt.% using methyl ethyl ketone for use.

As the material of the adhesive layer 40b, PDMS having a functional group or not having a functional group at the terminal (such as PDMS described in US 8,541,481) and silicone resin having an MQ structure are used. As an example, TSF451-100M (available from Momentive Performance Materials Japan LLC) can be used as a Silylethyl was used as the terminal PDMS, and MQ803TF (available from Wacker Chemie AG) was used as the polysiloxane resin with the MQ structure.

For example, a silicone adhesive is prepared by dissolving 30 parts by weight of silicone resin in 100 parts by weight of PDMS having trimethylsilylethyl as the terminal. The adhesive layer 40b is fabricated by applying a silicone adhesive to the primed substrate layer 40a. As an example, the thickness of the adhesive layer 40b is 50 μm. The adhesive layer 40b applied on the substrate layer 40a was cured by electron beam radiation (40 kGy; acceleration voltage: 210 KeV).

The material of the adhesive layer 40b, the material of the base material layer 40a, and the method of manufacturing the above-mentioned adhesive sheet 40 are examples. The adhesive layer 40b and the substrate layer 40a can be manufactured by using other materials or other manufacturing methods.

The material of the adhesive layer 40c is not limited. For example, a pressure-sensitive adhesive or a heat-sensitive adhesive may be used as the adhesive layer 40c. The structure of the adhesive layer 40c may be the same as or different from the aforementioned adhesive layer 13 .

It should be noted that the eighth embodiment describes a set 100 for sheets comprising hook material 22 and an adhesive sheet 40 which is the second hook and loop fastener member; An adhesive layer 40b may be provided on the back of the hook material 22, which is the second hook and loop fastener member. That is, it is not necessary to use the adhesive sheet 40 including the base material layer 40a.

The shape and size of the adhesive sheet 40 may be such that the entirety of the second hook and loop fastener member is positioned on the substrate layer 40a and at least a portion of the adhesive sheet 40 is on the outer side around the circumference of the second hook and loop fastener member. Set the mode of extension. For example, The shape and size of the adhesive sheet 40 may be set in such a manner that the adhesive sheet 40 extends in the outer side around the entire circumference of the second hook-and-loop fastener member. By manufacturing the adhesive sheet 40 in this way, the adhesive sheet 40 to which the second hook-and-loop fastener member is adhered can be easily peeled off from the support surface 90 .

FIG. 14 shows an example of use of the kit 100 for sheets. The operator adheres the adhesive sheet 40 to the supporting surface 90 in a state where the adhesive layer 40 b of the adhesive sheet 40 faces the supporting surface 90 . By this operation, the hook material 22 adhered to the base material layer 40 a of the adhesive sheet 40 is fixed to the supporting surface 90 . It should be noted that the hook material 22 may not be pre-adhered to the adhesive sheet 40 , and in this case, the operator may adhere the hook material 22 to the adhesive sheet 40 . The sheet 1 may be adhered to the support surface 90 after the operator adheres the sheet 1 to the hook material 22 on the support surface 90 . As described above, the operator can detach the sheet 1 from the hook material 22 .

When detaching the hook material 22 from the support surface 90 , the operator needs to peel off the adhesive sheet 40 from the support surface 90 . Thereby, the set 100 for sheets can be detached from the supporting surface 90 without damaging the supporting surface 90 .

The structure of the kit for one sheet is not limited to this embodiment. For example, a kit for a sheet may include: sheet 1A; loop material 21 , which is the second hook and loop fastener member; and adhesive sheet 40 . The adhesive layer 40c may not be a component of the adhesive sheet, but may be a component of the second hook and loop fastener member.

As described above, a sheet of material according to an aspect of the present invention includes: a film layer having a front side and a back side; and a fastener layer including at least a portion of the back side secured to the film layer A first hook-and-loop fastener member on; the first hook The loop fastener member includes at least one of a loop material or a hook material; a thickness of the hook material is 600 μm or less; and the loop material includes a nonwoven or knitted fabric engageable with the hook material.

In this aspect, since a hook and loop fastener member is provided on the back side of the film layer, the sheet can be easily attached or detached. For example, even when wrinkling or deliquescence occurs on the sheet during initial adhesion of the sheet to the support surface, the operator may temporarily peel off part or all of the sheet and then reattach the sheet. Since the sheets can be repeatedly attached and detached, the sheets can be posted by a small number of operators. Furthermore, easy reuse is also possible, such as adhering a sheet that has been adhered to one place to another.

By setting the thickness of the hook material to 600 μm or less, the bulkiness of the sheet fixed on the supporting surface can be suppressed. When the hook material is used as the first hook and loop fastener member, the sheet material also becomes thinner and lighter because the hook and loop fastener member becomes thinner and lighter. Therefore, the portability and handleability of the sheet can be further enhanced.

In a sheet of material according to another aspect, the 90° peel adhesion strength relative to a second hook and loop fastener member engageable with the first hook and loop fastener member may range from 0.5N/25.4mm to 8N/ 25.4mm. By setting the 90° peel adhesion strength of the sheet in this way, it is possible to maintain the engaging force while the sheet is attached, and at the same time achieve easy detachment of the sheet.

In a sheet according to another aspect, the film layer may include a support layer comprising polyester. With this structure, the strength of the film layer and the sheet can be enhanced.

In a sheet according to another aspect, the first hook and loop fastener member may be secured to the entirety of the rear surface of the film layer. By providing the first hook and loop fastener structure in this way With such a member, the operator can easily adhere the sheet to the support surface without critical attention to the positional relationship of the second hook and loop fastener member provided on the support surface with respect to the sheet.

In a sheet according to another aspect, the engaging surface of the loop material may have a region that does not include the loop. By providing this region, the sheet can be easily detached by suppressing the peel adhesion strength of the sheet. In addition, the sheet can be reliably adhered to the support surface while avoiding or inhibiting a phenomenon in which a portion of the loop layer is peeled off and transferred to a second hook and loop fastener member (such as hook material) during detachment of the sheet (i.e., transfer).

In a sheet according to another aspect, the film layer is a printed film layer, and the sheet can be used as a graphic sheet. In this case, the graphic sheet can be easily attached or detached. In addition, easy reuse of graphic sheets is also possible.

In a sheet of material according to another aspect, the first hook and loop fastener component is engageable with a second hook and loop fastener component secured to the garment or fabric. In this case, the graphic sheet can be easily attached to or detached from the garment or fabric. In addition, easy reuse of graphic sheets is also possible.

A sheet of material according to another aspect can be used as a projector screen. In this case, the projector screen can be easily attached or detached. In addition, easy reuse of projector screens is also possible.

A sheet according to another aspect can be used as a whiteboard sheet. In this case, the whiteboard sheet can be easily attached or detached. In addition, easy reuse of whiteboard sheets is also possible.

The sheet according to another aspect can be used as a sheet for post-it notes. In this case, the sheet for post-it notes can be easily attached or detached. In addition, easy reuse of the sheet for post-it notes is also possible.

The sheet according to another aspect may be used as a decorative sheet for interior or exterior. In this case, decorative sheets for interior or exterior can be easily attached or detached. Furthermore, easy reuse of decorative sheets for interior or exterior is also possible.

In a sheet according to another aspect, the decorative sheet for interior and exterior can be used as a cover to hide at least a part of recesses and protrusions formed on an interior or exterior decoration. In this case, the recesses and protrusions can be easily covered or exposed. Furthermore, easy reuse of the cover is also possible.

A kit for a sheet of material according to an aspect of the present invention comprising the above sheet of material and a second hook and loop fastener member engageable with the first hook and loop fastener member And can be fixed to a supporting surface. In this aspect, since a hook and loop fastener member is provided on the back side of the film layer, the sheet can be easily attached or detached. For example, even when wrinkling or deliquescence occurs on the sheet during initial adhesion of the sheet to the support surface, the operator may temporarily peel off part or all of the sheet and then reattach the sheet. Since the sheets can be repeatedly attached and detached, the sheets can be posted by a small number of operators. Furthermore, easy reuse is also possible, such as adhering a sheet that has been adhered to one place to another.

The kit for a sheet of material according to another aspect may further include an adhesive having low tack between the second hook and loop fastener member and a support surface layer. Since the adhesive layer with low adhesiveness is interposed between the second hook and loop fastener member and the support surface, the support surface can be prevented from being damaged when the adhesive layer is peeled off from the support surface. This is particularly effective, for example, where the supporting surface is a easily damaged wallpaper or the like.

In the kit for a sheet according to another aspect, the adhesive layer with low adhesiveness may be a silicone-based adhesive layer. Silicone-based adhesives exhibit low adhesive strength, while the necessary holding properties can be achieved by high wettability despite low adhesive strength. Therefore, by forming the adhesive layer using a silicone-based adhesive, the adhesive layer can be peeled off without damaging the support surface.

example

Hereinafter, the present invention is described more specifically based on examples, but the present invention is not limited to those examples in any way.

Example 1

Manufacture of graphic sheets and printing

A solution was prepared in which, on a solids basis, 35% of an acrylic-based adhesive having a monomer composition containing 55% n-butyl acrylate (BA), 25% of 2-ethylhexyl acrylate (2-EHA), 12.5% of vinyl acetate (VAc), and 7.5% of acrylic acid (AA). To 100 g of this solution, 1 g of bisamide crosslinker (5% solids content) was added and stirred, and the solution was then applied on a silicone coated paper liner. Next, apply the The added solution was continuously dried at 65° C. for 3 minutes, and then at 95° C. for 2 minutes to obtain an adhesive layer having a thickness of 20 μm. Next, a white PVC film (JP-90P, available from Tatsuta Chemical Co., Ltd.) having a thickness of 90 μ and which had been subjected to calender molding was laminated on the adhesive layer. The components obtained in this series of procedures are referred to as "Part A".

On the other hand, a solution was prepared in which two types of polyurethane adhesives TAKELAC A-969V and TAKENATE A-5 (available from Mitsui Chemicals, Inc.) were contained in ethyl acetate at a mass ratio of 3:1. in esters. This solution was applied on a corona-treated biaxial polypropylene (BOPP) film (commercially available from Shuangliang) with a thickness of 12 μ so that the dry mass of the coating was 5.2 g/m ² to form an adhesive layer. Next, a knitted fabric (BMWV-001, available from Maruha Co., Ltd.) prepared as a loop material was laminated on the adhesive layer. The components obtained in this series of procedures are referred to as "Part B". For knitted fabrics, the basis weight is 21.5 g/m ² , the warp count is 3.7 W/cm, and the weft count is 8 C/cm. It should be noted that the number of warp turns shows the loop density in the longitudinal direction of the knitted fabric, and the number of weft turns shows the loop density in the transverse direction of the knitted fabric.

Subsequently, Part A and Part B were combined by adhering the biaxial polypropylene film to the adhesive layer of the PVC film, thereby obtaining a graphic sheet.

On one side of the film of this graphic sheet, a motorized selected graphics.

For attaching the printed graphic sheet, an aluminum plate having dimensions of 210 mm x 150 mm x 1 mm was prepared. On the peripheral edge of the aluminum plate, the adhesion consists of an adhesive A hook material (NC-2141, available from 3M; width 25mm). Next, the printed graphic sheet was adhered to the aluminum plate by using a hand ink roller. The dimensions (length and width) of the printed graphic sheet are the same as the aluminum sheet.

90° peel adhesion strength

A sample piece was prepared by cutting a graphic sheet to a width of 25 mm. Furthermore, a hook material (NC-2141, available from 3M; width 25 mm) was adhered to an aluminum plate with dimensions 30 mm x 150 mm x 1 mm by using a hand ink roller. Next, the sample piece was adhered to the aluminum plate by a method specified in JIS Z 0237, and left overnight. Perform this series of procedures on two sample pieces. Thereafter, the 90° peel adhesion strength of each of the two samples was measured by the method specified in JIS Z 0237, and the average value (unit: N/25.4mm) was determined.

Transfer area of loop material to hook material

A sample piece was prepared by cutting a graphic sheet to a width of 25 mm. Furthermore, a hook material (NC-2141, available from 3M; width 25 mm) was adhered to an aluminum plate with dimensions 30 mm x 150 mm x 1 mm by using a hand ink roller. For this hook material, the thickness of the base is 85 μm, the height of the hook is 285 μm, the thickness of the hook material is 370 μm, and the maximum width of the cap part (cover) of the hook is 420 μm.

A step in which the sample piece was adhered to the aluminum plate and then peeled off was repeated 10 times, and the transfer area of the loop material (the knitted fabric in Example 1) to the hook material was determined (unit:%). For example, a transfer area of 90% indicates that the loop material is transferred in an area of 90% of the entire area of the hook material.

Example 2

Manufacture of graphic sheets and printing

The difference from Example 1 is the structure of part B. As a loop material, a nonwoven fabric (Laurel 2, available from Fibervision Suzhou) was prepared. In this nonwoven fabric, 33% of the entire area has been heat-sealed by heat pressing, and the acyclic region formed by heat-sealing is arranged in a plurality of lines extending in parallel. The basis weight of this nonwoven fabric is 35 g/m ² . The facing laminate on the opposite side of the heat cover is laminated to the adhesive layer of Part A.

Example 3

Example 3 differs from Examples 1 and 2 in that the graphic sheet includes hook material and the loop material is adhered to the aluminum plate. The difference with respect to Part A from Example 1 is that it does not contain BOPP film. To obtain Part B, a hook material (NC-2141, available from 3M) having a width of 600 mm was prepared and laminated on the adhesive layer formed by the same technique as in Example 1. Then adhering the adhesive layer of part A and the adhesive layer of part B to obtain a graphic sheet. A motorized graphic was printed on the PVC film side of the graphic sheet by the same technique as Example 1.

To attach the printed graphic film, an aluminum plate having dimensions of 210 mm x 150 mm x 1 mm was prepared. On the peripheral edge of this aluminum plate, a loop of material (NC-2841, available from 3M; width 25 mm) including an adhesive was adhered. For the loop material, the basis weight is 78 g/m ² , the warp turns are 14.6 W/cm, and the weft turns are 15.7 C/cm. The printed graphic sheet was adhered to the aluminum plate by using a hand ink roller. The dimensions (length and width) of the printed graphic sheet are the same as the aluminum sheet.

90° peel adhesion strength

The 90° peel adhesion strength was determined by the same technique as Example 1, except that a loop of material (NC-2841, available from 3M; width 25mm) was adhered to an aluminum plate with dimensions 30mm x 150mm x 1mm by using a hand ink roller.

Transfer area of loop material to hook material

The transfer area of the loop material to the hook material was determined by the same technique as in Example 1, except that a loop material (NC-2841, purchased from 3M; width 25 mm) was adhered to a 30 mm x 150 mm x 1 mm size by using a hand ink roller. Except aluminum plate.

Comparative example 1

When extruding a polyethylene/polypropylene mixture resin with a thickness of 70 μ by using a T-die, the polyethylene/polypropylene mixture resin and a nonwoven fabric (PRX-40, available from Hattori Takeshi KK) were subjected to Inline adhesion. This provides a sheet having a thickness of 200[mu] as part B. No heat sealing was performed on the nonwoven, and therefore the area to which the heat seal was applied was 0%. Next, the polyethylene/polypropylene mixture resin of Part B and the adhesive of Part A prepared in the same manner as in Example 1 were adhered to obtain a graphic sheet.

Comparative example 2

When extruding a polyethylene/polypropylene mixture resin having a thickness of 70 μ by using a T-die, the polyethylene/polypropylene mixture resin and a nonwoven fabric (ELEVES (trade name) T0403WDO, available from Unitika Ltd .) Subject to in-line adhesion. This provides a sheet having a thickness of 140[mu] as part B. In the nonwoven fabric used, 85% of the entire area was heat-sealed, and loop portions were distributed in a grid-like manner. Next, the polyethylene/polypropylene mixture resin of Part B and the adhesive of Part A prepared in the same manner as in Example 1 were adhered to obtain a graphic sheet.

Test Results

Table 1 shows the results of the 90° peel adhesion strength (N/25.4 mm) and the transfer area (%) of the loop material to the hook material for each of the above three examples and two comparative examples.

The foregoing is a detailed description of the present invention for its embodiments and examples. However, the present invention is not limited to the embodiments described above. Various modifications can be made to the invention without departing from its gist.

With respect to the present disclosure, the invention may be provided as described below.

item 1

A graphic sheet comprising: a printed film layer having a printed side and a back side; and a fastener layer having a first hook and loop secured to at least a portion of the back side of the printed film layer Fastener member; the first hook and loop fastener member has at least one of a loop material or a hook material, the loop material comprising a non-woven fabric or a knitted fabric.

item 2

The graphic sheet of item 1, wherein the 90° peel adhesion strength relative to a second hook and loop fastener member engageable with the first hook and loop fastener member is from 0.5N/25.4mm to 8N/25.4mm .

item 3

Graphic sheet as in item 1 or 2, wherein The first hook and loop fastener member is secured to an entirety of the back side of the printed film layer.

item 4

The graphic sheet according to any one of items 1 to 3, wherein one engaging surface of the loop material has an area without loops.

item 5

A graphic kit comprising: the graphic sheet according to any one of items 1 to 4; and a second hook and loop fastener member engageable with the first hook and loop fastener member.

A graphic sheet according to an aspect of the present invention includes: a printed film layer having a printed surface and a back side; and a fastener layer including fasteners secured to at least a portion of the back side of the printed film layer A first hook and loop fastener member; the first hook and loop fastener member comprising at least one of a loop material or a hook material, the loop material comprising a non-woven fabric or a knitted fabric.

A graphic kit according to an aspect of the present invention includes the aforementioned graphic sheet and a second hook-and-loop fastener member engageable with the first hook-and-loop fastener member.

In this aspect, due to the printing film layer used, a certain quality or more can be ensured for graphic printing. In addition, since the hook-and-loop fastener member is provided on the back side of the printed film layer through the adhesive layer, it can be easily attached or The graphics sheet is detached. For example, even when wrinkling or deliquescence occurs on the graphic sheet during initial adhesion of the graphic sheet to the support surface, the operator can temporarily peel off part or all of the graphic sheet and then reattach the graphic Sheet. Since the graphic sheet can be repeatedly attached and detached, the graphic sheet can be posted by a small number of operators. In addition, easy re-use is also possible, such as adhering a graphic sheet that has been adhered to one place to another.

In a graphic sheet according to another aspect, the 90° peel adhesion strength relative to a second hook and loop fastener member capable of engaging the first hook and loop fastener member may range from 0.5N/25.4mm to 8N /25.4mm. By setting the 90° peel adhesive strength of the graphic sheet in this way, the engaging force can be maintained while the graphic sheet is attached, and easy detachment of the graphic sheet can be achieved at the same time.

In a graphic sheet according to another aspect, the first hook and loop fastener member may be secured to an entirety of the back side of the printed film layer. By providing the first hook and loop fastener member in this way, the operator can easily adhere the graphic sheet to the support surface without paying close attention to the first hook and loop fastener member provided on the support surface relative to the graphic sheet. The positional relationship of two hook and loop fastener components.

In a graphic sheet according to another aspect, the engaging surface of the loop material may have an area that does not include loops. By providing this region, the graphic sheet can be easily detached by suppressing the peel adhesive strength of the graphic sheet. In addition, the graphic sheet can be reliably adhered to the support surface while avoiding or inhibiting a portion of the loop layer from being peeled off and transferred to the second hook and loop fastener member (such as hook material) during detachment of the graphic sheet. ) of a phenomenon (ie, transfer).

List of component symbols

1, 1A... sheet

2...film layer

2a...Front

2b...Back

12, 12A...fastener layer

13...Adhesive layer

111...film

112...support layer

113...Adhesive layer

10, 10A... graphic sheet

11...Printed film layer

11a...printing side

11b...back

21...ring material

22...Hook material

31...projector screen

32...whiteboard sheet

33...sheets for sticky notes

34...Decorative sheets for interior and exterior

40...adhesive sheets

40a...Base material layer

40b...adhesive layer

40c...adhesive layer

80...graphic patterns

90...support surface

91...Concave part

92...Protrusions

100...sets for sheets

1‧‧‧sheet

2‧‧‧film layer

2a‧‧‧Front

2b‧‧‧back side

12‧‧‧Fastener layer

13‧‧‧adhesive layer

21‧‧‧ring material

21a‧‧‧base

21b‧‧‧ring layer

22‧‧‧Hook material

90‧‧‧support surface

Claims (14)

A sheet for printing with solvent ink comprising: a film layer having a front side and a back side and comprising a support layer comprising polyester; and a fastener layer having the a first hook and loop fastener member on at least a portion of the back; the first hook and loop fastener member has at least one of a loop material or a hook material; a thickness of the hook material is 600 μm or less; and the loop The material includes a non-woven or knitted fabric capable of engaging the hook material. The sheet material of claim 1, wherein the 90° peel adhesion strength is from 0.5N/25.4mm to 8N/25.4mm relative to a second hook-and-loop fastener member engageable with the first hook-and-loop fastener member . The sheet material of claim 1 or 2, wherein the first hook and loop fastener member is secured to an entirety of the back side of the film layer. The sheet according to claim 1 or 2, wherein one of the mating surfaces of the loop material has an area without loops. The sheet according to claim 1 or 2, wherein the film layer is a printed film layer, and the sheet is used as a graphic sheet. 6. The sheet material of claim 5, wherein the first hook and loop fastener member is engaged with a second hook and loop fastener member secured to clothing or fabric. The sheet according to claim 1 or 2, wherein the sheet is used as a projector screen. The sheet according to claim 1 or 2, wherein the sheet is used as a whiteboard sheet. The sheet according to claim 1 or 2, wherein the sheet is used as a sheet for post-it notes. The sheet according to claim 1 or 2, wherein the sheet is used as a decorative sheet for interior and exterior. The sheet according to claim 10, wherein the decorative sheet for interior and exterior is used as a cover to hide at least a part of recesses and protrusions formed on an interior or exterior. A kit for a sheet of material, comprising: the sheet of any one of claims 1 to 11; and a second hook and loop fastener member engageable with the first hook and loop fastener member and Can be fixed to a supporting surface. The kit for a sheet of claim 12, further comprising an adhesive layer having low adhesiveness between the second hook and loop fastener member and the support surface. The set for a sheet of claim 13, wherein the adhesive layer with low adhesiveness is a silicone-based adhesive layer.

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