KR19990064035A - Products that release volatiles - Google Patents

Abstract

The present invention provides a portable disposable insect repellent product. The product includes a fibrous substrate that can be impregnated with an insect repellent. In one embodiment, the fibrous substrate comprises fibers having an outer capillary located between the porous cover and the barrier layer. The porous cover may comprise a perforated plastic film having taper openings. Insect repellents may be contained in a breakable packet, where the breakable packet breaks through the fibrous substrate and is released through the perforated film.

Description

Products that release volatiles

Personal insect repellents have historically been used by a number of different methods. For example, the insect repellent may be sprayed or applied to a person's skin, sprayed around a person and sprayed onto a person's clothing. Insect repellent solutions are typically volatile, releasing vapors that drive insects out of the human body.

The absorbent base in patch form, saturated with the volatile solution of the insect repellent, was volatile for application to the garment. Typically patches containing volatile solutions should be packaged so that the solution does not evaporate before the patch is applied. U.S. Patent Application No. 08, filed January 5, 1995, entitled "Package for Containing and Applying a Bug Repellent Patch," entitled "Package for Containing and Applying a Bug Repellent Patch." / 369,068 discloses a package containing a patch impregnated with an insect repellent. The disclosed package allows the user to apply the patch to the desired surface without touching the patch.

Such patches may have a barrier between the substrate and a desired surface, such as a user's garment. The barrier allows for greater protection from insects by allowing greater amounts of volatile solution to be used. However, as the amount of solution increases, certain solutions may flow out of the substrate in liquid form and be absorbed into the user's skin or transferred from the finger to the user's eyes or mouth. Therefore, the amount of solution that can be released in the vapor form by a given amount initially from the product of a certain surface area over a period of time should be limited to the amount such that the volatile solution does not come into contact with the user's skin.

It is therefore an object of the present invention to provide a portable disposable product for releasing volatiles such as liquid repellents.

Another object of the present invention is to provide a product having a barrier layer, a porous cover layer and a substrate impregnated with a volatile liquid repellent, at least a portion of which is located between the barrier layer and the porous cover layer.

Summary of the Invention

The present invention encompasses disposable portable products for controllably releasing volatiles such as insect repellents from a substrate.

The present invention includes a substrate supported on an article and a crushable container supported on the article for receiving and releasing volatile liquid substrates. The crushable container contains a volatile liquid substance. The container may be broken by the user so that the volatile liquid material flows out to the substrate. In one embodiment, the thumb and index finger are pressed to break the vessel. In another embodiment, the product may include a penetrating element for breaking the container.

The substrate may comprise a fibrous material. In one embodiment, the substrate comprises fibers that are non-absorbent for volatile liquid materials. The fibers can be formed from polyolefin materials. In one embodiment, the substrate comprises capillary fibers having an outer capillary.

In one aspect of the invention, the article comprises a barrier layer and a porous cover layer, and a substrate impregnated with a volatile liquid material. The article may also include an adhesive fastener for securing the article to a target surface, such as a wearer's garment. The porous cover layer may comprise a perforated plastic film having an open area ratio of at least about 10%, more preferably at least about 20%.

The present invention relates to portable disposable products for providing products which release volatiles, more particularly insect repellents.

Although the specification concludes with the claims, which specifically point to and specifically claim the invention, it is believed that the invention will be understood in greater detail in connection with the accompanying drawings.

1 is a cross-sectional view of an embodiment of the invention in which the product is sealed in a sealed package.

FIG. 2 is a top view of the article of FIG. 1 showing the substrate having a relatively low density region with the sealed package removed and the porous cover layer partially cut to extend between the relatively high density regions.

3 is an enlarged cross-sectional partial view of the article of FIG. 1 showing a porous cover having a generally conical perforation.

4 shows a cross section of capillary fibers generally having an I-shaped cross section.

5 is a cross-sectional view of another embodiment of the present invention having a crushable container containing a volatile liquid repellent positioned between the porous cover layer and the barrier layer.

6 is a cross-sectional view of another embodiment of the present invention having a breakable packet of volatile liquid located in an elongated package having a removable end and a substrate formed of generally parallel capillary fibers.

FIG. 7 is a cross-sectional view of FIG. 6 showing the end of the extended package removed to provide a relatively dense portion of the substrate extending from the package.

8 is another embodiment of the present invention having a substrate formed from a breakable vessel and strands of woven polyolefin fibers that are connected to the substrate through a fluid conduit.

9 is a top view of another embodiment of the present invention having a breakable container and a substrate sealed to a cut container with a portion of the top surface of the container.

10 is a cross sectional view of the product shown in FIG. 9 taken along lines 10-10.

1 and 2 show a portable disposable product 20 for releasing volatiles comprising one or more components. The product 20 includes a substrate that can be impregnated with a volatile liquid material, such as an insect repellent. The term "disposable" refers to a product intended for disposal after one use. The term “portable” refers to being conveniently and reliably carried in a pocket, purse or handbag. The term "volatile liquid material" refers to a liquid material comprising a component having a vapor pressure of at least about 0.001 mm at 50 ° C.

1 to 2, the article 20 includes a barrier layer 30, a porous cover layer 40, and a substrate 50. The article 20 may also include fasteners 60, such as a pressure sensitive adhesive. Fasteners 60 may be used to support product 20 on a target surface, such as a wearer's garment. The product 20 is sealed in a wrapper 22 to prevent the repellent from evaporating before use. In FIG. 2, the packaging material 22 is omitted to show the internal structure of the product 20.

The product according to the invention comprises a shredable container 90. The breakable container contains a predetermined amount of volatile liquid substance 100 for impregnating the substrate 50. The vessel 90 is shown in FIG. 5.

Looking at the components of the product 20 of the present invention in more detail, the barrier layer 30 is generally impermeable to volatile liquid materials. The blocking layer 30 prevents the volatile liquid substance in the substrate 50 from contacting the target surface on which the product 20 is supported. In one embodiment, the barrier layer 30 is a flexible film, such as a polymeric film; Flexible foil; Composites such as foil / polymeric film laminates. Flexibility means that the barrier layer 30 is flexible and easily adapted to the shape and curvature of the human body.

Suitable barrier layer 30 may comprise a woven or nonwoven or polymeric film such as a thermoplastic film of polyethylene or polypropylene. Suitable thermoplastic films are polyethylene films having a thickness of about 0.012 mm to about 0.051 mm. Suitable films are those produced by P18-0401 by Clopay Corporation, Cincinnati, OH and XP-39385 by Ethyl Corporation, Terre Haute, IN. Alternatively, the barrier layer 30 comprises a laminate of foil and polymeric film, such as Type M2077 foil / film laminate made by the American Can Co. of Minnesota, Minnesota. can do.

As shown in FIG. 1, the fastener 60 may be directly or indirectly connected to the blocking layer 30. Suitable fasteners 60 include, but are not limited to, adhesive fasteners and mechanical fasteners (eg, VELCRO brand fasteners). Suitable pressure sensitive adhesives from which fasteners 60 can be prepared include: Century A-305-IV brand adhesive manufactured by Century Adhesives Corp., Columbus, Ohio; And Instant Lock 34-2823 branded adhesive manufactured by National Starch and Chemical Company, Bridgewater, NJ.

The packaging 22 may include a thermoplastic film that introduces a release liner for covering the fastener 60 while the product 20 is sealed in the packaging 22. Suitable release liners for adhesive fasteners are disclosed in US Pat. No. 4,917,697, which is incorporated herein by reference. Non-limiting examples of suitable release liners are BL30MG-A Silox E1 / 0 and BL30MG-A Silox 4P / 0 manufactured by Akrosil Corp., Menasha, WI. .

The porous cover layer 40 releases an effective amount of volatiles from the product 20. The porous cover layer 40 may include a film made of a liquid impermeable material. Multiple openings 41 extend through the film. In one preferred embodiment, the porous cover layer may comprise a perforated shaped plastic film comprising an outwardly facing surface 44, and an inwardly facing surface 42. In one embodiment, the perforated shaped plastic film is generally preferred because it is non-absorbent compared to the volatile liquid material and prevents the volatile liquid material from passing through the cover layer 40 and contacting the wearer's skin or clothing.

Porous cover layer 40 may be connected directly or indirectly to barrier layer 30 by a number of suitable methods. In one embodiment shown in FIG. 1, the perimeter of the cover layer 40 can be secured directly to the barrier layer 30 by adhesive, heat and / or pressure sealing, ultrasonic bonding, or the like. Suitable heat sealing methods are disclosed in US Pat. No. 5,382,245, issued January 17, 1995 to Thompson et al.

In one embodiment, the porous cover layer has a caliper 45 of at least about 0.005 inches. Caliper 45 is measured under a compressive load of 95 g / inch ² using a circular load foot of 2.00 inch diameter. The caliper 45 isolates the liquid in the substrate 50 from the outwardly facing surface 44 of the porous cover layer 40. This caliper 45 restricts the liquid in the substrate 50 from reaching the surface 44 and possibly not in contact with the wearer's skin or clothing. In one embodiment, the caliper 45 may be at least about 0.010 inches, more preferably at least about 0.015 inches. For example, a suitable porous cover layer 40 may have a caliper 45 of about 0.015 to about 0.025 inches.

The opening 41 may also be shaped to restrict the flow of liquid from the substrate 50 to the outer surface 44. As shown in FIG. 3, the opening 41 is tapered from a relatively wide base opening 46 in the outwardly facing surface 44 to a relatively small vertex opening 48 in the inwardly facing surface 42. Can lose. U.S. Patent No. 3,929,135, issued to Thomson on December 30, 1975, which is incorporated herein by reference, discloses a suitably shaped film with tapering openings. Although not shown in alternative embodiments, opening 41 may taper from a relatively large opening in inner surface 42 to a relatively small vertex in outer surface 44.

Each opening 46 may have a surface area of about 0.015 to about 32 mm 2. The porous cover layer 40 may have an opening area ratio of about 10% or more. In one embodiment, porous cover layer 40 has an aperture area ratio of at least about 20%. For example, a suitable porous cover layer 40 can have an opening area ratio of about 20 to about 50%. This aperture area ratio is suitable for efficiently releasing volatiles from the substrate.

As shown in FIG. 2, the opening area ratio including the area of the opening 46 is determined by measuring the total surface area of the porous cover layer 40 once. In the cover layer 40, the surface areas of all the openings 46 may be measured and added. The surface area of the opening 46 is measured at the outer surface 44. The opening area ratio is a ratio obtained by dividing the total of the areas of the openings 46 by the total surface area of the cover layer 40.

Although porous cover layer 40 appears to have tapering openings 41 in FIGS. 1-3, other molded films may be volatiles, while limiting the flow of liquid volatiles from substrate 50 to surface 44. Will be used to release the product 20. Other molded films suitable for use as cover layer 40 are disclosed in US patents incorporated herein by reference (US Pat. No. 4,324,246 to Mullane et al .; US Patent No. 4,342,314 to Radel et al .; US Patent No. 4,463,045 to Ahr et al .; US Patent No. 4,629,643 to Curro et al .; And US Pat. No. 5,006,394 to Baird. A suitable porous cover layer 40 is commercially available as a sanitary napkin called DRI-WEAVE by The Procter & Gamble Company.

The substrate 50 may be a fiber and may be a woven or nonwoven patch, batt, tow, tuft or packet of fibers that are nonabsorbent for volatile liquid materials. The term " non-absorbent " means that when the substrate 50 is submerged in a volatile liquid material, the individual fibers absorb less amount of volatile material than the weight of their own (volatile liquid absorbed by the fiber per gram of fiber weight G of material is less than 1 g). Thus, the volatile liquid material is stored between the fibers or along the fiber surface rather than inside the fiber itself, thus improving the release of the volatile liquid material from the substrate 50.

In one embodiment, the substrate can include fibers formed from a polymer such as polyolefin. Suitable fibers include, but are not limited to, polyethylene, polypropylene, and polyester fibers. Substrate 50 may be directly or indirectly connected to barrier layer 30. In an embodiment as shown in FIG. 1, the substrate 50 is directly attached to the inner facing surface of the barrier layer 30 with a layer of adhesive 35. Suitable adhesives 35 include Findley Adhesive # 2120 or Findlay H2031 Advanced (purchased from Findlay Advanced, El Grove, Wisconsin) and Century 5227 Advanced (Ohio, USA). Century International Adhesive and Coating Corp., Columbus.

In another aspect, the substrate 50 can include a plurality of capillary fibers 55. Capillary fibers 55 are fibers comprising one or more channels formed therefrom, preferably contained on their outer surface. 4 shows capillary fibers 55 having a general I-shaped cross section. It will be appreciated that suitable capillary fibers 55 may include any of a variety of forms including, but not limited to, cross sections of the I, H, C, V, and U shapes. The channel 57 of the outer surface of the fiber 55 has a width of W and a depth of D. The value of W may be about 10 μm to about 100 μm. The value of D may be about 10 μm to about 100 μm. Capillary fibers 55 may have a denier of about 10 g / fiber length 9000 m to about 450 g / fiber length 9000 m. Suitable capillary fibers 55 are described in U. S. Patent No. 5,382, 245 to Thomson et al. On Jan. 17, 1995, and U. S. Patent No. 5,200, 248 to April 6, 1993, incorporated herein by reference. Is disclosed.

The value of W can be equal to or greater than the value of D. In one embodiment, the ratio of W / D may be at least about 1.5, more preferably at least about 2.0. This relatively shallow channel 57 with a relatively high W / D ratio improves the release of the material from the substrate 50 compared to the release provided by the fiber 55 having a lower channel ratio 57 of W / D. While volatiles can be transported. In one embodiment, the value of D can be about 15 μm to about 30 μm and W can be about 40 μm to about 70 μm.

The substrate 50 may include a relatively high density region and a relatively low density region. Relatively high density regions can quickly move volatile fluids through the substrate, while relatively low density regions can promote the release of volatile liquid material relatively quickly from the substrate. The fibers in at least some portion of the substrate 50 may be laid in a predetermined direction, and in one embodiment the fibers in at least some portion of the substrate 50 are generally laid in parallel to allow the volatile liquid to soak up in the predetermined direction. .

Referring to FIG. 2, the substrate 50 may include a relatively low density zone 54 extending between and connecting the two relatively high density zones 52A and 52B. The fibers of the relatively high density zones 52A and 52B may be aligned in a generally parallel manner to provide wicking of volatile liquid materials into the relatively low density zone 54. The substrate shown in FIG. 2 may be formed from lengths of generally capillary fibers 55 in parallel. In general, the length of the parallel capillary fibers may be compressed to tighten portions of the radially outward fibers to form a relatively low density zone 54.

In another embodiment, the substrate 50 may comprise natural or synthetic sponge materials, or open cellized foam materials. Suitable open cellized foams (e.g., foams prepared by polymerizing high discontinuous emulsions) are disclosed in the U.S. Patent Document, which is hereby incorporated by reference. See, filed Jan. 10, 1995 by Stone et al. US patent application Ser. No. 08 / 370,695 entitled "Absorbent Foams Made From High Internal Phase Emulsions Useful for Acquiring and Distributing Aqueous Fluids" for use in capturing and dispensing aqueous fluids; "Absorbent Foams Made From High Internal Phase Emulsions Useful for Acquiring Aqueous Fluids," filed August 30, 1995 by DesMarais, filed on August 30, 1995. United States patent of the name; US Patent No. 5,147,345 entitled "High Efficiency Absorbent Articles for Incontinence Management," issued September 15, 1992 to Young et al.

In FIG. 5, the product 20 according to the present invention comprises a liquid impermeable crushable container 90 containing a predetermined amount of volatile liquid 100. The crushable container 90 can be broken by the user and can send the volatile liquid 100 to the substrate 50. The crushable container holds the volatile liquid material away from the substrate 50 until the product 20 is ready for use. Thus, the tendency for the volatile liquid substance to be volatilized from the product 20 before the product is located to the user is reduced.

The material with the injected substrate 50 preferably includes one or more components effective for insect repellent, including but not limited to insects (eg mosquitoes). In one aspect, the substrate 50 may be infused with a liquid material comprising one or more organic compounds. Such an organic compound may have 1 to 20 carbon atoms (C ₁ to C ₂₀ organic compound), more preferably 6 to 12 carbon atoms (C ₆ to C ₁₂ organic compound). In one embodiment, the substrate 50 is infused with a liquid material comprising one or more C ₆ to C ₁₂ organic compounds. Such organic compounds may be saturated, unsaturated or aromatic and may have a straight chain carbon, a branched carbon chain or a cyclic structure.

Examples of suitable organic compounds include, but are not limited to, alcohols (syntronolol), aldehydes (citronellal), ketones, esters, lactones and amides. Suitable mixtures into which the substrate 50 can be implanted are CITRONELLA CEYLON, Flt FDG, FP 138, manufactured by International Flavors and Fragrances, NJ. Other suitable materials into which the substrate 50 can be implanted include, but are not limited to, ethyl butylacetylaminopropinate, N, N-diethyl-M-toluamide (DEET) and dimethyl phthalate.

The product of the present invention may have a substrate 50 injected at an initial load of about 2.0 g or less of the volatile liquid material transferred to the shredable container 90. In an embodiment, the crushable container can contain up to about 1.0 g of volatile liquid material. In addition, the weight ratio of the volatile liquid substance to the weight of the substrate is at least about 0.1. In one embodiment, the weight ratio of the volatile liquid material contained in the crushable container 90 to the weight of the dry substrate 50 is preferably at least about 2.0, more preferably at least about 4.0. In the illustrated example, the substrate 50 may have a dry weight of about 0.22 g injected with about 2.0 g of liquid comprising citronella oil (eg, citronella ceylon mentioned above).

The structure of the present invention can provide an effective release ratio of the insect repellent with a relatively small amount of insect repellent. Without wishing to be bound by theory, the performance of the structure of the present invention to provide an effective release ratio with a small amount of insect repellent is at least in part due to having a relatively high initial weight ratio of the insect repellent to dry substrate weight.

The crushable container 90 may comprise a packet formed from a liquid impermeable layer material. For example, the container 90 may comprise a packet formed from a polymer film (eg, a thermoplastic film). Such packets can also be formed from foil stacks and polymer films. As described above, suitable materials that may be formed from the container 90 include films and laminates that may be formed from the barrier layer 30. In one embodiment, the vessel 90 may be formed from a film (having a thickness of about 0.028 mm) made by Tredegar Industries, Terre Hota, Indiana under the tradename C-8570.

The shredded container 90 and the at least some substrate 50 may be disposed in a fluid conduit. The fluid conduit is directed from the vessel 90 to the substrate 50 with a predetermined amount of volatile liquid 100, where the vessel 90 is crushed. In FIG. 5, the fluid conduit includes a sleeve 80 having a closed end 82 and an open end 84. The container 90 is disposed in a sleeve 80 adjacent the closed end 82. At least a portion of the relatively high density region 52A of the substrate 50 extends to the open end 84 of the sleeve 80. In general, parallel capillary fibers 55 in region 52A extend into sleeve 80 to weaken fluid from fractureable container 90 to relatively low density region 54.

Sleeve 80 may be coupled to the substrate to form a fluid seal. For example, the open end 84 of the sleeve 80 is bonded to the substrate 50 with an adhesive to prevent a predetermined amount of liquid 100 from flowing between the substrate 50 and the sleeve 80. The sleeve may be formed from a liquid impermeable film (eg, a polymer film) that is substantially nonabsorbent for volatile liquid materials. Suitable materials that can be formed from the sleeve include films and laminates that can be formed from the barrier layer 30. Another suitable film that can be formed from the sleeve 80 is a SARAN brand wrap manufactured by Dow Brands, Inc. of Indianapolis, Indiana.

6 is a cross-sectional view of another embodiment of the present invention. In FIG. 6, the product 220 according to the present invention consists of a crushable container 90 containing a substrate 50 consisting entirely of parallel capillary fibers 55 and a predetermined amount of volatile liquid 100. The substrate 50 and the shredable container 90 are disposed in the elongated package 235. Fastener 60 may be disposed on an outer surface of package 235.

Package 235 may be generally cylindrical and may have a first end 237 and a second removable end 239. The second removable end 239 may be separated from the package 235 at the weak line along the same line as the perforation line 238. Package 235 preferably includes a liquid impermeable film, such as a plastic film, which is substantially nonabsorbable for volatile liquid materials. Suitable materials from which package 235 may be formed include films and laminates capable of forming barrier layer 30.

The crushable container 90 may be disposed adjacent to the first end 237 in the package 235. The fibers 55 may extend generally parallel from the vessel 90 toward the second end 239. The fibers 55 may be laterally constrained by the sheath 245. The sheath 245 may include one or more layers of paper surrounding the fibers 55 and retaining the fibers 55 in a generally cylindrical form, compressed radially. It is desirable to orient the fibers 55 in a substantially parallel form and to keep the fibers 55 in a radially compressed form along at least a portion of their length. This fiber form is preferred for drawing up volatile liquid material from the vessel 90 toward the second end 239.

FIG. 7 is a cross-sectional view of the product 220 of FIG. 6 showing the removable end 239 detached from the elongated package 235. When the removable end 239 is removed from the package, a portion of the sheath 245 adjacent to the end 239 may be peeled off, as shown in FIG. 7, to free the end of the fiber 55. Once the ends of the fibers 55 are freed, the ends of the fibers extend in the transverse direction (eg, in the radial direction) indicated by the arrow 154 of FIG. 7 to form a relatively low density region 54 of the substrate 50. can do. A portion of the substrate 50 that remains surrounded by the sheath 245 includes a region 52 of relatively high density. The container 90 can be broken by applying a compressive force to each side of the package 235 as indicated by arrow 236 (eg, picking up the package 235 with two fingers).

8 is a partially cut away top view of an article 320 according to another embodiment of the present invention. The article 320 includes a barrier layer 30, a porous barrier layer 40 connected to the barrier layer 30, and a substrate 50 disposed between the barrier layer and the porous barrier layer 40. The substrate 50 includes strands of twisted polyolefin fibers. The strand of twisted fibers may have two ends disposed in the sleeve 80 positioned adjacent to the crushable container 90 containing the volatile liquid material. In another embodiment, the substrate 50 may comprise a woven or nonwoven web of nonabsorbent fibers in the form of a patch. Such patches may comprise polypropyrene fibers, have a basis weight of about 5-6 ounces per yard ² and calipers may be about 0.05 to about 0.10 inches.

In another embodiment, the substrate 50 may comprise a nonwoven web of paper fibers, including conventional papermaking techniques as well as paper web manufacture by aeration drying techniques. Suitable webs capable of forming the substrate 50 include, but are not limited to, US Pat. Nos. 4,528,239, issued July 9, 1985 to Trokhan, which is incorporated herein by reference; US Patent No. 5,277,761, issued January 11, 1994 to Phan et al .; And US Pat. No. 5,245,025, issued to September 4, 1993 to Trocan et al. In another embodiment, the substrate 50 may have a weight of about 0.25 g and may include two or more fragments of a two-ply paper towel cut from a Bounty brand paper towel manufactured by The Procter & Gamble Company. .

9 and 10 show an article 420 according to another embodiment of the present invention. Product 420 includes container 425. The container 425 can include a shell 440 having an opening 441 therein. Shell 440 may be directly or indirectly connected to base 430 by adhesive, intermediate joints, or other suitable means. A crushable container 90 containing a fibrous substrate 50 and a predetermined amount of volatile liquid 100 appears to be disposed between shell 440 and base 430 within the container. Shell 440 and base 430 may be thermoformed from a thermoplastic.

Perforated element 443 may be connected to or integrally extend from the inner surface of shell 440. The crushable container 90 may be located below the puncture element 443. The substrate 50 may at least partially surround the container 90 such that the fibers 55 of the substrate 50 extend generally parallel around the container 90.

Shell 440 may be elastically or plastically deformed with respect to the base by applying compression force 436 to shell and base 430 (eg, pressing the shell and base with two fingers). Deformation of the shell relative to the base causes the puncturing element 443 to penetrate the vessel 90 such that volatile liquid is released to impregnate the substrate 50. Vapor of volatile liquid material is then discharged past opening 441 in shell 440.

In the described embodiment, the substrate 50 is injected with an effective insect repellent material. In other embodiments, the substrate 50 may be infused with a substance that is effective to provide a desired perfume (eg, perfume) or a mixture of such substances.

While certain aspects of the invention have been illustrated and described, those skilled in the art will clearly appreciate that various changes and modifications can be made without departing from the spirit and scope of the invention. All such modifications and uses are understood to be included in the appended claims.

Claims (10)

A substrate supported on the product for receiving and releasing volatile liquid substances and Containers containing volatile liquid material, supported by the product, and crushable by the user for flowing the volatile liquid material into the substrate An article for controllably releasing a volatile liquid substance comprising a. The method of claim 1, An article comprising a porous cover, a barrier layer relatively impermeable to volatile liquids, and a substrate at least partially positioned between the porous cover and the barrier layer. The method according to claim 1 or 2, Further comprising a fluid conduit capable of flowing volatile fluid from the breakable container into the substrate when the container is broken. The method according to any one of claims 1 to 3, An article in which the fibrous substrate comprises regions of relatively low density and regions of relatively high density. The method of claim 4, wherein A relatively high density region of the substrate transfers the volatile liquid material from the crushable container into a relatively low density region of the substrate. The method according to any one of claims 1 to 5, Wherein the substrate comprises non-absorbent fibers and preferably comprises capillary fibers having an outer capillary. The method according to any one of claims 1 to 6, An article comprising a fastener for securing a product to a target surface. The method according to any one of claims 1 to 7, An article comprising a container comprising a piercing element for a crushable container for holding a fibrous substrate and a crushable container. The method according to any one of claims 1 to 8, The total amount of volatile liquid materials contained in the shredable container is about 2.0 g or less, more preferably about 1.0 g or less, and the ratio of the total weight of the volatile liquid materials to the weight of the substrate in the one or more shredable containers is preferably about 2.0 or more. At least one shredable container. The method according to any one of claims 1 to 9, A product in which the breakable container contains a repellent.