KR19980701223A - TEAR RESISTANT DISPOSABLE BIB - Google Patents

Abstract

The present invention provides a bib 20 having a filamentous network 60 positioned between a paper top sheet 40 and a plastic film back sheet 80. The filamentary network structure 60 may include a polymeric net having an opening sized to prevent a portion of the topsheet or backsheet from tearing from the bib. In an aspect, the filamentous network can include a nylon net having an opening with a maximum width of less than about 0.25 cm.

Description

Tear-resistant disposable bib

Disposable bibs are well known in the art. Such a bib may be provided for use when feeding the baby, for example. The disposable bib can have a laminated structure that includes multiple layers. For example, the disposable bib can include an absorbent paper topsheet for receiving spilled food, and a plastic film backsheet that prevents spilled liquid from penetrating through the bib into the baby's clothing.

The art also discloses a bib with three layers, such as a layer of thermoplastic material between two layers of paper. Other bib designs shown in the art include bibs having a multi-layered structure comprising a gauze decorative layer, and bibs having a front panel formed of a plastic film having grooves and perforations for capturing and retaining food. The art also discloses that it is known to coat a paper bib with an opening net or a reticular material to hold the paper together.

The following references illustrate various bib structures. US Patent No. 3,286,279, issued April 1, 1964 to Brown; US Patent No. 3,329,969, issued July 15, 1965 to Farber et al .; US Patent No. 3,608,092, filed September 28, 1971 to Taranto; US Patent No. 3,979,776, issued September 14, 1976 to Gruenwald; US Patent No. 4,416,025, issued to Moret et al. On November 22, 1983; US Patent No. 4,441,212 to Ahr; US Patent No. 4,445,231 to Noel, issued May 1, 1984; And US Pat. No. 4,884,299, issued December 5, 1989 to Rose.

One problem with known disposable bibs with paper and plastic layer structures is that babies can tear the bib in pieces. Tearing off the bib is undesirable because it reduces the ability to effectively cover the child's clothing and also creates additional waste needed for disposal.

Efforts to prevent tearing of the bib with only the design of the plastic film forming the waterproof backsheet are generally not satisfactory. Such plastic films are generally inherently traded in strength and flexibility. For example, stronger polymers are less flexible, while the strength obtained by increasing the thickness also loses flexibility.

Alternatively, by adding a protective layer on the back, the garment facing side of the bib does not provide the desired support to the paper top sheet. Adding a protective layer on the outer front surface of the bib does not provide support to the plastic backsheet, affects the aesthetics of the front front surface of the bib, and also impedes the absorption of liquid spilled on the outer front surface of the bib. Can be.

Alternatively it is an object of the present invention to provide a disposable bib that does not tear well without damaging the absorption, aesthetics or flexibility of the bib.

Another object of the present invention is to provide a disposable diaper having a multilayer structure.

It is another object of the present invention to provide a disposable bib with a polymer net layer located between and connected to the paper topsheet layer and the plastic film backsheet layer.

It is another object of the present invention to provide a disposable bib with a reinforced network having an opening sized to absorb the liquid spilled on the outer layer of the bib while preventing the bib from tearing.

It is another object of the present invention to provide a disposable bib with a reinforced interlayer comprising an absorbent paper topsheet, a plastic film backsheet, and a polymerizable net, wherein the reinforcement layer delivers the pull load applied by the wearer. To have a tensile strength at least greater than either the top sheet or the back sheet, wherein the opening of the net is sized to prevent the wearer from tearing the top sheet into separate pieces.

Summary of the Invention

The present invention provides a disposable bib with a composite structure. In one embodiment, the bib comprises an absorbent, liquid permeable outer topsheet; A garment facing backsheet layer that is liquid impermeable to the topsheet; And a filamentous network structure positioned between the back sheet and the top sheet for transferring the load.

The filamentary network layer may be connected oppositely to the opposite surfaces of the topsheet and the backsheet and may have a plurality of openings therethrough, wherein the filamentous network may have an opening area ratio of at least about 50%. The opening in the filamentous network is preferably sized to prevent the baby's finger from passing through the opening of the network and tearing a small piece of bib out of the bib body.

The bib includes a tissue paper topsheet having a first outer facing surface and a second opposite facing surface, and a polymerizable net connected to the second surface of the topsheet. The polymerizable net may comprise a plurality of first filaments generally parallel extending in a first direction, and a plurality of second filaments generally parallel extending in a second direction angled relative to the first direction. The maximum spacing between adjacent parallel filaments can be less than or equal to about 2 cm, and in one embodiment is less than or equal to 1 cm to prevent the wearer from slipping the bib into small pieces by sandwiching fingers between the filaments.

The present invention relates to a disposable bib, and more particularly to a bib that does not tear well.

While the specification particularly points out and specifically claims what this invention claims, the present invention will be better understood by reference to the following specification in conjunction with the accompanying drawings, in which similar markings are used to refer to substantially the same components.

1 is a front plan view of a disposable bib of the present invention in which a portion of the top sheet is cut to show a reinforced filamentous network structure positioned between the top sheet and the back sheet, wherein the filament of the filamentary network structure is generally Extend in the longitudinal and transverse directions.

FIG. 2 is a rear plan view of the disposable bib of the present invention with a portion of the backsheet cut away to show a reinforced filamentous network positioned between the topsheet and the backsheet, wherein the filaments of the filamentary network generally It extends diagonally with respect to the longitudinal direction.

FIG. 3 is a partial cross-sectional view taken along line 3-3 of FIG. 1, showing a filamentous network structure located between the top sheet and the back sheet.

4 is an enlarged schematic view showing a part of a filamentous network structure.

5 is a wearing diagram of a disposable bib.

1 to 5 illustrate a disposable bib 20 according to the present invention. The bib 20 includes a bib body 22 and a pair of shoulder extensions 24 and 26 extending from the bib body 22 on one side of the bib longitudinal centerline 21. By longitudinal is meant a direction or axis generally parallel to the line extending from the wearer's head to the wearer's waist when wearing the bib. By axial direction is meant a direction or axis perpendicular to the longitudinal direction when wearing the bib and generally parallel to a line extending across the wearer's chest.

Bib 20 may include two lateral edges 32 and 34 generally extending in the longitudinal direction, a lower edge 36 and a neck opening 38 generally extending laterally. The neck opening 38 is located midway between the shoulder extensions 24 and 26 and accommodates the wearer's neck when wearing the bib. The neck opening 38 is generally a U-shaped opening in FIG. 1, but it should be understood that other neck openings may be used, including various openings and occluded shapes. The following U.S. patents are incorporated herein by reference for the purpose of demonstrating various bib morphologies: U.S. Patent 4,416,025, issued 22 November 1983 to Morett et al., U.S. Patent 4,441,212 and Noel, issued to Ahr US Patent No. 4,445,231, issued May 1, 1984.

Bib 20 according to the invention comprises a composite structure having multiple stacks. In the figure, the bib is an absorbent, liquid permeable outer topsheet layer 40, a garment facing backsheet layer 80 that is liquid impermeable to the topsheet 40, and a backsheet layer 80 and a topsheet layer ( And a filamentary network structure 60 for transmitting a load located between 40). The topsheet 40 has a first outer surface 41 and a second inner surface 44 for receiving spilled food. The backsheet 80 has a first garment facing surface 82 and a second surface 84. The surface 84 of the back sheet 80 and the surface 44 of the top sheet 40 are opposed to each other. The filamentary network structure 60 has a plurality of openings 70 extending therethrough and can be connected to opposing surfaces 44 and 84 opposite the top sheet 40 and the back sheet 80.

The filamentary network structure 60 may have tensile strength and tensile extension properties to transfer loads acting on the bib 20 to prevent the bib 20 from tearing well. In one aspect, the filamentous network 60 includes a plurality of first filaments 62 generally parallel and a plurality of second filaments 64 generally parallel. As shown in FIG. 1, filament 62 generally extends longitudinally and filament 64 generally extends laterally. However, it should be understood that the filaments 62 and 64 need not extend longitudinally and laterally, nor do they generally need to be parallel or mutually perpendicular. For example, in the embodiment shown in FIG. 2, the filaments 62 and 64 may extend diagonally with respect to the longitudinal axis 21 and form an angle of about 45 ° with respect to the axis 21. have.

The disposable bib 20 may optionally have a pocket 100 capable of capturing and containing food. The pocket 100 may have an opening 110 and a lower edge 120 (FIG. 2). U. S. Patent No. 4,445, 231, listed above, is incorporated herein by reference for the purpose of disclosing a structure suitable for the pocket 100.

The bib 20 may also have a fastening assembly for securing the bib 20 to the wearer. 5 shows the bib 20 worn by the wearer. 1 and 2, the securing assembly includes securing members 202 and 204 positioned on the garment facing surface 82 of the backsheet 80. The fixation members 202 and 204 may include protrusions 206 positioned on the shoulder extensions 24 and 26 and engaged with a plurality of fabrics, which may be in the form of prongs or hooks. The protrusion 206 extends from the face of the bib 20. In one aspect, the protrusions 206 on each shoulder extension 24 and 26 engage the fabric of the wearer's garment to hold the bib 20 in position.

In another aspect, the bib can also include one or more landing surfaces 210 that are engaged by the protrusions 206. The landing surface 210, which may include a nonwoven fabric, is connected to the outer surface 42 of the topsheet 40 and positioned on the shoulder extension 24. The shoulder extension 26 is positioned to span the shoulder extension 24 behind the wearer's neck to secure the bib to the wearer, and the protrusion on the fixation member 202 engages the landing surface 210. Suitable securing members 202 and 204 are MC-6, code KN0513 / KN0514, manufactured by 3M Company, Minnesota. Suitable landing surface 210 is a non-woven web of polypropylene fiber of P-14, supplier grade # 9324369, manufactured by Veratech Division of International Paper Corporation, Walpole, Massachusetts. Suitable hook and loop type fasteners are also available from VELCRO USA, New Hampshire. Other suitable fastening members having protrusions are disclosed in the following U.S. patents, incorporated herein by reference: US Pat. No. 4,846,815, issued July 11, 1989 to Scripps; US Patent No. 4,894,060, issued January 16, 1990 to Nestor; US Patent No. 4,946,527 to Batrell, dated August 7, 1990; US Patent No. 5,019,065 to Scripps, issued May 28, 1991; US Patent No. 5,058,247, issued October 22, 1991 to Thomas et al .; US Patent No. 5,116,563, issued May 26, 1992 to Thomas et al .; US Patent No. 5,180,534, issued 19 January 1993 to Thomas et al .; 5,318,741, issued July 7, 1994 to Thomas et al .; U.S. Patent No. 5,325,569 to Goulait et al. On July 5, 1994; And US Pat. No. 5,326,415, issued July 5, 1994 to Thomas et al. Alternatively, ties, tapes or other adhesive fasteners can be used to secure the bib to the wearer.

Examining the laminated structure of the bib 20 in more detail, the topsheet 40 may comprise a paper web having a basis weight of about 10 to about 50 pounds per 3000 square feet. The following U.S. patents are incorporated herein by reference for the purpose of disclosing methods for making tissue papers suitable for use in the manufacture of the topsheet 40: U.S. Patents 4,191,609, 4,440,597, 4,529,480, 4,637,859 5,223,096 and 5,240,562. Suitable topsheet 40 may be formed from single or multi-ply paper towels, such as bounty paper towels manufactured by The Procter & Gamble Company, Cincinnati, Ohio.

The backsheet 80 may comprise a liquid impermeable film. In one aspect, the backsheet 80 may comprise a polyethylene film having a thickness of about 0.0076 to about 0.0508 mm. The polyethylene film from which the backsheet 80 can be formed is made by Tredegar Industries, Ter Haute, Indiana.

The filamentary network structure 60 is a surface 44 and 84 of the topsheet 40 and backsheet 80 by any suitable means, including but not limited to mechanical bonding, adhesive bonding, and ultrasonic bonding. Is connected to. The filamentous network 60 is preferably connected to the surfaces 44 and 84 along substantially the entire longitudinal length of the bib 20 and substantially across the entire lateral width. Suitable adhesives for connecting the filamentary network structure 60 to the top sheet 40 and the back sheet 80 may be found in the Findley Adhesives, Elm Grove, Wisconsin. Hot melt adhesives such as H2031. About 3 mg of H2031 adhesive per square inch of the bib region can be used to connect the filamentous network 60 to the topsheet 40 and backsheet 80.

The filamentary network structure 60 increases the tensile strength of the bib 20 to prevent the bib from tearing well. The filamentous network 60 has a maximum tensile strength greater than either the top sheet 40 or the back sheet 80 (the tensile strength measured along the direction in which the tensile strength of the filamentous network 60 is maximum). Can have Tensile strength can be measured using a constant rate stretch tensile test machine as described below.

Different net materials, such as different polymeric materials, can be chosen to provide a bib with different strength, stretch and flexibility. In general, the higher the strength, the lower the flexibility. The cross sectional dimension of the filament and the spacing between adjacent filaments may be selected depending on the strength and flexibility of the material from which the filament is made. For materials with relatively high strength and relatively low flexibility, filaments with relatively small cross sectional dimensions can be used, and the spacing between adjacent filaments is relatively large. For materials with relatively low strength and relatively high flexibility, filaments with relatively large cross sectional dimensions can be used, and the spacing between adjacent filaments can be relatively small.

The opening 70 between adjacent filaments of the filamentous network 60 is such that the wearer's baby grabs the unreinforced area of the top sheet 40 covering the opening 70 from the bib and the upper sheet 40 from the bib. It is sized to prevent tearing the hardened area. The opening 70 may preferably be smaller than the wearer's fingertips to prevent the wearer from sticking a finger through the topsheet 40. Thus, opening 70 may have a maximum width 74 of less than about 2 cm (FIG. 4). In one preferred embodiment, the opening 70 may have a maximum width 74 that is about 1 cm or less, preferably about 0.5 cm or less, most preferably about 0.25 cm or less.

The filamentous network structure preferably does not substantially increase the stiffness of the bib 20 and substantially does not affect the ability of the topsheet 40 to absorb spilled food, and the material necessary to construct the bib. It does not tear well without substantially increasing the amount of. Some materials, such as thermoplastics, exhibit both relatively high strength and relatively high flexibility. Thus, for the range of widths 74 listed above, the filaments may have relatively small cross sectional dimensions 72 (FIG. 4). For example, the cross sectional dimension 72 is less than about 2 mm, and in one embodiment the cross sectional dimension 72 is less than about 0.25 mm, such that the filamentous network 60 has a relatively large opening area ratio. The opening area ratio increases as the spacing between adjacent filaments increases, and the opening area ratio decreases as the cross-sectional dimension 72 of the filament increases.

The opening area ratio of the filamentous network 60 is measured by measuring the opening area in 10 square cm of the sample of the filamentous network 60, and dividing the opening 70 area in the sample by the sample size (100 square cm). do. For the ranges of widths 74 and dimensions 72 listed above, the open area ratio of the filamentous network 60 is at least about 50%, in one embodiment at least about 75%.

The filamentous network 60 may comprise a net of thermoplastics, wherein the thermoplastics may be polyethylene, polypropylene, polyvinyl chloride, polyvinyl acetate, nylon, polyester, polyethylene vinyl acetate, polyethylene methyl methacrylate, Selected from the group comprising polyethylene acrylic acid, polypropylene methylmethacrylate, polypropylene acrylic acid, polyvinylidene chloride, polyvinyl alcohol, cellulose acetate, cellulose butyrate, polycarbonate and alkyl cellulose; It is not intended to be limited only. Alternatively, the filamentous network can comprise a web made from natural fibers, synthetic fibers, or a combination thereof. Suitable natural fibers include, but are not limited to, cotton, flax, wool and silk. Suitable synthetic cellulose, synthetic modified cellulose or synthetic mineral fibers include, but are not limited to, rayon, acetate, lyocell and fiber glass.

The filamentary network structure 60 schematically illustrated in FIG. 4 may be formed by a number of suitable techniques, including but not limited to casting, moulding, weaving, and knitting. Each of the filaments 62 and 64 may comprise one or more strands or two or more strands twisted together. Essentials of Textiles, 3rd edition, Marjory L. Joseph (1984), p237, discloses a net structure and is incorporated herein by reference.

In one aspect, the filamentous network 60 is a plurality of generally parallel first filaments 62 extending in a first direction and generally parallel extending in a second direction forming an angle with respect to the first direction. It may comprise a knitted nylon net comprising a plurality of second filaments 64. Each filament 62 and 64 includes two nylon strands. The individual strands have a diameter of about 0.02 mm to about 0.10 mm, and the filaments 62 and 64 have a maximum cross-sectional width dimension 72 of about 0.04 mm to about 0.20 mm (about twice the diameter of the individual strands). Have The maximum width 74 of the opening 70 is about 0.05 cm to about 0.20 cm. Adjacent filaments of a plurality of parallel first filaments 62 generally provide about 6 to about 14 filaments 62 per cm apart from each other, and generally adjacent filaments of a plurality of parallel second filaments 64 Provided about 6 to about 14 filaments 64 per cm apart from each other, the nylon net has about 25 to about 200 openings 70 per square cm. The nylon net has a basis weight of about 10.8 g per square meter and a caliper of about 0.17 mm under a defined pressure of 0.1 psi. Suitable nylon nets are commercially available as nylon chops from fabric wholesalers and retailers. This nylon net is marketed as SKU 040-1703 at Fabri-Centers of America, Hudson, Ohio.

1, 2 and 4 show a filamentous network 60 that generally comprises a uniform rectangular filament lattice. In another aspect, the filamentous network 60 may comprise filaments arranged in a non-uniform manner.

Test Methods

The following method is used to measure the tensile strength, flexural hardness and impact resistance of a basic bib sample having a top sheet and a back sheet. The same method is used to measure the comparability of the bib sample of the present invention having the same top sheet and back sheet as the basic bib but with a nylon net incorporated between the top sheet and the back sheet. The topsheet comprises a Bounty brand paper towel and the backsheet comprises a polyethylene film having a thickness of about 0.025 mm. The filamentary network structure 60 includes the nylon nets disclosed above sold by Fabry-Centers of America as SKU 040-1703. In both the basic bib and the bib with the nylon net according to the invention, about 3 mg of H2031 adhesive per square inch of bib is used between the topsheet and the backsheet to join the bib components together. In the bib with the nylon net according to the invention, the filaments 62 and 64 are oriented diagonally at an angle of about 45 ° with respect to the longitudinal axis 21 as shown in FIG. 2. Bib samples are conditioned at 50% RH and 73 ° F for at least 2 hours before testing.

Tensile test

Tensile strength of bib and filamentous networks is measured with reference to the INDA Standard Test IST 110.1-92 of the Association of the Nonwoven Fabrics Industry, which is incorporated herein by reference. Bib samples are cut into 1.00 inch wide sample strips. The sample is placed squarely on the jaw of a constant rate stretch tensile tester Instron Model 4201. Use a 1 inch, line-contact grating to avoid slipping any sample. Samples are pretensioned to zero load at a 1.0 inch gauge length. The force is measured using a 100N load cell and is recorded continuously as the sample extends at a crosshead speed of 12.0 inches per minute so that the sample ruptures completely. In all cases, the local maximum is issued at the first inch of height. This initial peak is referred to as the tensile strength of the bib. This peak, when present, typically occurs concurrently with rupture of the topsheet or filamentous network. In some cases, the load on the polyethylene film just before the polyethylene film bursts exceeds the initial peak. The strength values reported are reported in grams per inch wide strip (g / inch). Properties are reported as the average of two or more measurements.

The results of tensile testing of the bib with the basic bib and nylon net oriented as shown in FIG. 2 are listed in FIG. 1. Sample cut from the bib so that the sample gauge length is generally perpendicular to the bib axis 21 (gauge length 45 ° with respect to the filament in the bib with nylon net), and also about 45 ° with respect to the bib axis 21 Properties are reported for samples cut to an angled gauge length (gauge lengths arranged parallel and perpendicular to the filament in bib with nylon net).

The results in FIG. 1 show that the tensile strength of the laminated bib with nylon net does not exceed the tensile strength of the basic bib. The laminated bib according to the present invention may have a tensile strength of at least about 2000 g / inch, more particularly at least about 2500 g / inch and in the tested embodiments at least about 3000 g / inch.

Impact Resistance Test (Drop Injection)

Impact resistance provides a measure of the resistance of the bib to perforation. The impact resistance of the bib sample measures the impact on the round sample of the bib by dropping an extrudate of known weight at a known distance. The bib sample is positioned and fitted into the clamp to conform to an annular compressed air grip with an internal command of 3.0 inches to form a 3 inch diameter bib sample supported by the extruded air grip. Allow an injection of a particular mass and shape to free fall from the height of 15.0 inches to the center of the 3.0 inch diameter bib sample, with a distance of 15.0 inches from the sample surface to the center of the injection mass. 100 g of stainless steel injection weight has a 19 mm diameter circular end, has a total length of 67 mm, the center of injection mass is located about half along its length, and the round end of the circular end has a distance of about 348 from the surface of the sample. Mm. Five samples are impacted against the basic bib structure and the bib according to the present invention. Each impacted sample is checked for puncture (any visible hole through the entire thickness of the bib). The bib structure is considered to have an impact resistance equal to the square of the rate of the injection impacting the sample, which is 2/1 of the mass of the injection if none of the five samples are perforated by the injection. When the basic bib was tested with this impact test, five bib samples were each drilled. When testing the bib with the nylon net according to the invention, none of the five samples are perforated. The speed of the injection is calculated using the injection movement for a dropping distance of 15 inches and it is assumed that there is no air resistance. When the 100 g mass falls 15 inches (38.1 cm), the impact resistance is reported as 1860000 g · cm 2 / s ² or 186 g · m 2 / s ² . Thus, the bib with nylon net according to the invention has an impact resistance of at least about 186 g · m 2 / s ² .

Flexural Hardness (Inverse to Flexibility)

The relative flexibility of the sample of the basic bib and the sample of the bib according to the present invention is measured using the INDA standard test IST 90.1-92, which standard is incorporated herein by reference. This test measures the bending hardness of a sample in terms of drape strength. A 2.54 cm × 20 cm sample is cut from the bib and slipped by hand at a speed of about 4.75 inches per minute in a direction parallel to its long dimension so that its front edge protrudes from the edge of the surface of the horizontal platform. When the tip of the sample falls by the weight of the sample itself to the point where the line connecting the edge of the platform and the tip of the sample is 41.5 ° to the horizontal line, the length of the suspended sample is measured. The bending hardness of a sample is this hanging length x the basis weight of a sample. Flexural hardness is reported as a unit of g cm as an average of two or more measurements. The flexibility of the sample is inversely proportional to the reported bending hardness. The results of the flexural hardness test of the bib with the basic bib and the nylon net oriented as disclosed in FIG. 2 are shown in Table 2. Flexural hardness is about the sample of the bib cut to have a long dimension generally perpendicular to the axis 21 of the bib (the major axis has a 45 ° angle to the filament in a bib with a nylon net), and about the axis 21. A sample of a bib cut to a long dimension with a 45 ° angle is reported for the bib with a nylon net (the major axis is parallel and perpendicular to the filament).

The results of FIGS. 1 and 2 show that the laminated bib of the present invention has only slightly larger flexural hardness than the basic bib, but at the same time the tensile strength and puncture resistance can be increased as mentioned above. The laminated bib according to the present invention may have a bending hardness of less than about 20 g · cm, more specifically less than about 15 g · cm, and in embodiments tested, less than about 12 g · cm. Thus, the laminated bib according to the present invention has a relatively high tensile strength (not tearing well) and a relatively low bending hardness (which provides softness and a comfortable fit of the bib to the wearer's body).

The tensile strength Gauge length perpendicular to the bib shaft 21 45 ° Engage Length with Bib Shaft (21) Initial Peak Load (g / inch) Initial Peak Load (g / inch) Basic bib average 1690 1810 1610 1700 1490 1750 1470 1800 1380 1900 1528 1792 Laminated Bib with Nylon Net Average (One) (2) 3000 3250 3030 3310 3300 3170 2950 3090 3280 (1) Filament and 45 ° gauge length in laminated bib with nylon net (2) Gauge lengths parallel and perpendicular to the filaments in laminated bibs with nylon nets

Flexural hardness Base weight (mg / cm 2) Suspended length (cm) of the sample whose long length is perpendicular to the bib shaft 21 Suspended length (cm) of the sample whose long length is 45 ° relative to the bib shaft 21 Flexural hardness (gcm) of the sample whose long length is perpendicular to the bib shaft 21 Flexural hardness (gcm) of the sample whose long length is 45 ° to the bib shaft 21 Basic bib 7.1 10.8 11.0 8.94 9.45 7.1 11.5 10.8 10.80 8.94 7.1 11.3 11.0 10.24 9.45 7.1 10.1 10.5 7.32 8.22 7.1 11.7 10.6 11.37 8.46 Mean standard deviation 9.73 8.90 1.62 0.56 Laminated Bib with Nylon Net (One) (2) (One) (2) 8.7 10.3 10.4 9.51 9.79 8.7 10.4 10.9 9.79 11.27 8.7 11.0 11.58 10.29 10.35 Mean standard deviation 1.12 1.05 (1) suspended length of 45 ° to filament in laminated bib with nylon net (2) suspended length parallel and perpendicular to filament in laminated bib with nylon net

While certain aspects of the invention have been illustrated and disclosed, it will be apparent to those skilled in the art that various other changes and modifications can be made without departing from the spirit and scope of the invention. All such changes and modifications within the scope of the invention are intended to be included in the appended claims.

Claims (10)

An outer topsheet that is absorbent and liquid permeable; A garment facing backsheet layer that is liquid impermeable to the topsheet; And a filamentous network structure located between the backsheet and the topsheet. The method of claim 1, Disposable bib, characterized in that the filamentous network layer is connected to the surface of the topsheet. The method according to claim 1 or 2, Disposable bib, characterized in that the filamentous network is connected to the surface of the backsheet. The method according to any one of claims 1 to 3, A disposable bib characterized in that the filamentous network includes a plurality of openings through it, and the filamentous network has an opening area ratio of about 50% or more. The method according to any one of claims 1 to 4, A filamentous network comprises a plurality of openings therethrough, wherein the opening has a maximum width of about 2 cm or less, more preferably about 1.0 cm or less, most preferably about 0.5 cm or less. bib. The method according to any one of claims 1 to 5, Disposable bib, characterized in that the maximum cross-sectional dimension of the filament is less than about 0.25 mm. The method according to any one of claims 1 to 6, A disposable bib, wherein the filamentous network comprises a polymeric material. The method according to any one of claims 1 to 6, And a web made from a fiber selected from the group consisting of natural fibers, synthetic cellulose fibers, synthetic modified cellulose fibers, synthetic mineral fibers, and mixtures thereof. The method according to any one of claims 1 to 4, 7 and 8, Wherein the filamentous network comprises a plurality of generally parallel first filaments extending in a first direction, and a plurality of generally parallel second filaments extending in a second direction forming an angle with the first direction, wherein Disposable bib, characterized in that the maximum spacing between adjacent parallel filaments is about 1 cm or less and the maximum cross-sectional dimension of the filaments is about 0.25 mm or less. An absorbent, liquid-permeable topsheet layer having a first outward side and a second opposite side, and a plurality of generally parallel first filaments extending in the first direction, and a second direction forming an angle with the first direction A polymerizable net comprising a plurality of generally parallel second filaments extending to the filaments, wherein the filaments are connected to a second surface of the topsheet layer and the maximum spacing between adjacent parallel filaments is about 1 cm or less. Disposable bib with a composite structure.