KR20010053192A - Waste management device with adhesive flange - Google Patents

Abstract

The present invention relates to a disposable human body waste disposal apparatus such as a urine disposal apparatus and a faeces treatment apparatus (10) having a local adhesive for attaching a disposable human body waste disposal apparatus to a skin. In particular, the present invention relates to an adhesive (20) which provides a fixed attachment, which gives satisfaction to the skin during application and which does not cause discomfort when removed. This is accomplished by selecting the chemical composition and rheological characteristics of the adhesive, in particular by selecting the viscosity coefficient G " in combination with the thickness C of the adhesive layer applied to the flange 12 of the device 10 for attachment to the skin It is accomplished.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a waste management apparatus,

The urine and feces treatment devices are known to be designed to be worn primarily by incontinence patients, and especially by laying patients. These body excretory processing devices are attached to the human anatomical region or the anus or the genital area of the wearer and collect and immediately accept the faeces and other body excreta.

These devices are designed to be worn by laying patients, as is now commonly known. These devices are composed of a relatively long and narrow viewframe so that at one end thereof there is a hole and a skin attachment device to which an adhesive can be applied.

An example of such a bag is disclosed in U.S. Patent No. 3,577,989, which discloses a disposable excretion trap bag for incontinent patients, comprising, for example, a container member having an open top and an expandable flange secured to the container member about the open top, . The flange may include an adhesive layer on the surface of the flange as a means of attaching the bag to the wearer or, alternatively, the use of an elastic strap to attach the bag to the wearer. In addition, U.S. Patent No. 4,784,656 describes a container for collecting faeces from incontinence patients. The faucet collector includes a gasket, a conduit means or a cylinder and a vessel; The container and the conduit means are each formed of two odorless thermoplastic films which are heat sealed along each of their lateral edges, the sides of the gasket being coated with an adhesive layer; GB 2 152 387 teaches a stool collector for incontinence patients, including a ring with an adhesive and a collection bag. The faecal collector includes a pair of panels of thermoplastic sheet material joined at their edges to form an elongated bag having openings at one end. GB 1 078 588 describes a urine collector comprising a tubular liquid-tight bag having an opening surrounded by an adhesive means in the form of an adhesive.

Another type of catheter device bag having a platter shape is known from EP 245 064. EP 245 064 discloses a bag having a front and a rear wall, wherein the front wall comprises a hole and means for attachment to the body. This attachment means is a waterproof material suitable for the skin, such as hydrocolloids and water-insoluble viscoelastic binders.

Due to their typical elongate shape and dimensions, these devices can be easily twisted around the thighs of the wearer, especially when worn by infants or non-lying incontinence patients, and / or the formation of folding and twisting of these devices themselves ≪ / RTI > Under such circumstances, the pressure and stress exerted on the bag will naturally increase due to the movement of the wearer and the pressure of the wearer's body. As a result, the likelihood that the faeces once exhaled and contained in the bag exerts pressure on the attachment surface of the device will increase, and as a result the storage capacity of the device is adversely affected, and more importantly, The device can be accidentally separated from the wearer. This situation causes unacceptable painful consequences for both the wearer and the caregiver.

It is therefore essential to design this treatment device so that the urine and / or feces handling device is fixedly attached to the wearer's skin and is not accidentally separated during all use situations.

In order to provide a desired level for attaching the device to the wearer, the prior art typically discloses the use of adhesives with very high adhesive strength, such as, for example, rubber base adhesives and acrylic resins. These adhesives are applied as a thick layer over the entire surface of the flange of the device to maximize the adhesive force that causes the device to be secured to the wearer's skin. In fact, for adhesives designed for use in these devices and in patients who are lying alone, and in particular, for use in a stool treatment device used by patients with an artificial anus, the maximum adhesive force takes precedence over other conditions, such as patient comfort.

However, adhesives should have a composition that is suitable for the skin, should not be harmful or aggressive to the skin, or cause skin irritation or inflammation. It is also desirable if the adhesive is softer to the wearer's skin that maximum surface contact between the adhesive and the skin is achieved. Moreover, it is also desirable to have an adhesive so that the device can be easily removed from the wearer without suffering unacceptable pain. This is particularly important to ensure that the device is misplaced and that such device is applied to a wearer group such as an infant and sensitive skin under circumstances where removal and relocation of the device is required once or several times. However, although there is no pain, the desired level of adhesion must of course be maintained during this many applications of the device.

The problem of achieving the desired adhesion level is exacerbated under wet skin conditions. Typically, prior to placement of the device, the skin is cleaned and, as a result, is generally wetted. However, currently compatible adhesives, such as hydrocolloids, often do not attach readily to the skin immediately, and may need to be held in place until sufficient minimal adhesion has occurred. Moreover, the overall adhesive force of such adhesives tends to be considerably reduced on the wet skin surface, so that the device is not adhered to the skin during wear, for example by movement of the wearer, or when pressure is applied on the device during defecation do.

However, moisture and moist skin are not only a widespread problem in this device application step, because a significant amount of moisture also occurs during use of the device from the wearer and from the feces contained in the bag by the divergence of perspiration. The resulting moist environment naturally increases further when this device is used in combination with a diaper. Under such circumstances, the present adhesive is usually unable to absorb this moisture, and the adhesive strength is reduced to such an extent that the device is often separated by the application of pressure during wear. Therefore, it is important to provide an adhesive that maintains the adhesive strength on the wet skin.

None of the prior arts in the field of the disposable diapers have recognized or explained the problem of having these devices with adhesives satisfying these conditions.

In contrast, prior art in the conventional field of adhesive for skin attachment has been further developed in the field of products such as band-aids, plasters and bandages. However, these products are typically applied in emergency situations, such as where incision of the wearer ' s skin occurs and absorption of body fluids from the wound is required. In such a situation, the performance aspects of the product, such as ease of application and use of the product, comfortable wear and painless removal, and separation, may in this case be secondary to the sterility of the wound, to be.

WO 97/42985 discloses an wound dressing comprising a layer of an absorbent foam material coated with a layer of a skin-adhesive hydrophobic gel having a low specific adhesive strength.

Another area in which the use of such adhesives is disclosed is in absorbent materials such as, for example, sanitary napkins, as described in US Provisional Patent Application No. H1602 or WO 96/33683 and WO 95/16424. The latter discloses a sanitary napkin having a local adhesive applied over the wearer contact side of the sanitary napkin along its entire periphery. WO 96/13238 discloses a local adhesive which is described in terms of frequency relationship. EP-638 303 discloses the use of a local adhesive on the side cuff of a sanitary napkin to hold the cuff in a vertical position. Swiss Publication No. CH-643730 discloses the use of a very long menstrual napkin with a chamfered outer edge containing a local adhesive at the four corners of the outer edge to better provide a localized adhesive area outside the region of pubic bone growth .

However, all of these references are designed to be used in combination with the undercoat, disclosing products that are not designed to withstand very high pressure and very low adhesive strength actually provided. Moreover, the adhesive is described only in terms of the concentration on the area to which the adhesive is applied to the product or from a conventional point of view. The nature of the adhesive itself, rather than the basic physical conditions such as pressure sensitivity, is not specifically discussed with reference to chemical composition or bonding conditions.

Similarly, it is known from the field of urine treatment devices, for example, in WO 92/11825, to have a urine incontinence pad with an elastic body to which an adhesive layer, such as hydrogel adhesive, is applied to the external surface. However, the urine absorbing device must also meet a different overall functional criteria than the present invention. In particular, the defecation treatment apparatus can easily move within the range of the bag and receive a solid or semi-solid waste which exerts pressure on the orifice thereby separating the device from the wearer. In contrast, such a urine pad can easily absorb liquid, so that this liquid does not flow out of the absorber, so that such a device is not designed to withstand the pressures typically encountered in a feces handling device.

Accordingly, there is a need to provide a body excretion treatment device having an adhesive for fixed attachment and painless removal of the device to the skin between the buttocks of the wearer so as to be suitable for the sensitive skin use of the infant. And to provide such a device.

Another object of the present invention is to provide an adhesive that allows painless removal, for example, when the device is misplaced, the ability to reapply, especially the ability to adhere to the skin upon multiple reapplications. Still another object of the present invention is to provide an adhesive which, after removal, does not leave any residue on the skin.

It is a further object of the present invention that the adhesive is attached to wet or moist skin, irrespective of whether the device is applied directly to the moisture generated on the surface of the skin during wear of the device or onto the wet skin.

In addition to the above objects of the present invention, it is desirable for the adhesive to provide additional benefits such as delivery or dispersion of the compound or composition beneficial to the skin or to the body in general.

Surprisingly, it has been found that these drawbacks have been substantially alleviated by providing an adhesive to the flange of the apparatus as described below. This adhesive provides a fixed attachment, which is refreshing on application and does not cause any discomfort when removed. This is achieved in particular by selecting the properties of the local adhesive in terms of the viscosity (G ") of the local adhesive and the thickness (C) of the local adhesive layer applied to the device.

In a more preferred embodiment of the present invention, the overall performance of the device is improved when the bag is provided in a specific shape, so that in addition to a laying adult incontinence patient, a plurality of wearer groups, such as infants, children and active adult incontinence patients, Lt; / RTI >

In another aspect of the present invention, a device for treating feces with a particular adhesive may be advantageously used in combination with a reusable undergarment and / or preferably a disposable diaper.

The present invention relates to a disposable human body waste disposal apparatus such as a urine disposal apparatus and a feces disposal apparatus for infants, children, or adults, which is directly attached to the wearer's skin. The device can easily detach the device from the wearer without pain, using an improved adhesive with a particular rheology and application thickness of the wearer to attach the device to the wearer ' s skin, while the wearer is active While maintaining the device at the desired location, especially on wet or moist skin during the entire wear period, including the environment or period of wear during which the wearer does not lay down.

1 is a perspective view of a feces processing apparatus according to the present invention;

Fig. 2 is a perspective view of a feces processing apparatus combined with a disposable fryer. Fig.

3 is a partially cutaway perspective view of a disposable machine basin embodying the present invention;

4 is a plan view of the disposable urine treating apparatus of the present invention.

A body excretion treatment apparatus such as a urine treatment apparatus or a feces treatment apparatus known in the art can be provided with the adhesive according to the present invention. Typically, these devices include a bag 11 having a hole 21 and a flange 12 surrounding the hole, for adhesive attachment to the genitals region or perianal area of the wearer, as can be seen in Fig. . The adhesive is capable of attaching the device to the wearer's skin, which is typically provided as a layer having a constant thickness or caliper (C) measured in millimeters (mm) on at least a portion of the wearer's contact surface of the flange.

A detailed analysis of a series of typical situations that take place from the application of the body excretion treatment apparatus to the removal of this apparatus is preferably carried out in such a way that the particular adhesion properties are optimized so as to achieve the desired performance objectives, And to achieve painless elimination after wearing. The features considered in the text are the elastic modulus describing the elastic behavior of the material and the viscosity coefficient describing the viscous behavior of the adhesive material.

The viscous behavior of the adhesive can be interpreted to indicate an indication of the ability of the adhesive to adhere rapidly and stick to a particular surface quickly. The elastic behavior can be interpreted as an indicator of the " hardness " behavior of the adhesive. These combinations are considered to be indicators of the force required for removal. The relationship between the elasticity and the viscosity coefficient is considered as an index of the fact that a part of the elimination energy is dispersed in the adhesive and a part causes actual removal.

The relationship between the modulus of elasticity and the viscosity coefficient and its dynamic behavior is also important, in order to have a local adhesive for initial and extended fastening.

The adhesive elastic modulus at a temperature 37 ℃ (100 ℉) (G '37) a, 37 ℃ (100 ℉) viscosity of temperature (G' ₃₇₎ and 25 ℃ (77 ℉) viscosity (G the temperature _"25) I have.

Preferably, the adhesive according to the present invention satisfies the following conditions.

_{G '37 (1 rad / sec} ) is in the range 1500 Pa to 20000 Pa,

Preferably in the range of 1500 Pa to 15000 Pa,

Most preferably in the range of 3000 Pa to 10000 Pa.

G " ₃₇ (1 rad / sec) is in the range of 100 Pa to 15000 Pa,

Preferably in the range of 100 Pa to 10000 Pa,

Most preferably in the range of 300 Pa to 5000 Pa.

Then, the ratio of _{G '37 (1 rad / sec} ) / G "37 (1 rad / sec) is in the range of 1 to 30.

In addition, the rheological behavior can be related to the glass transition temperature (Tg). For the local adhesive according to the invention, preferably the Tg is less than -15 DEG C, more preferably less than -20 DEG C, most preferably less than -25 DEG C.

In addition, the rheological behavior and acceptability of the adhesive may be related to specific heat. Preferably, the specific heat of the adhesive is 4 J / g / K, more preferably 3 J / g / K, and most preferably 2 J / g / K.

In addition, the rheological behavior and tolerance of the local adhesive may be related to the specific heat conductivity of the adhesive. Preferably, the non-thermal conductivity is as low as possible, preferably between 1 and 0.1 W / m / K, and most preferably between 0.6 and 0.1 W / m / K.

If the rheological condition is satisfied, the adhesive also satisfies such conditions as the condition for the application of such an adhesive and sufficient cohesion (to prevent residues of adhesive on the skin) which is obvious to the person skilled in the art. Adhesive compositions meeting the above conditions may be used as adhesives for flanges provided that the composition meets the usual conditions safe for use on human or animal skin during use and typically after deployment of the device.

Often, as a hygienic contour, the adhesive composition is preferably transparent or white when applied.

The rheological conditions and other considerations include polymers that form a three-dimensional matrix and include a medically inhaled substantially water-insoluble polymer comprising an adhesive of the hydrocolloid of less than 10 wt%, preferably less than 5 wt% Can be satisfied by an adhesive composition which is a pressure sensitive adhesive. Preferably, the compound or composition is selected from the group consisting of an acrylic resin, a sulphonated polymer, vinyl alcohol, vinyl pyrrolidine, polyethylene oxide, or a combination thereof. Also preferably, the adhesive comprises a plasticizer. Preferably, the plasticizer compound or composition is selected from the group consisting of water, an alcohol (preferably glycerol), a glycol, a polyglycol, or a combination thereof.

According to the present invention, the thickness or caliper (C) measured in millimeters (mm) of the layer on which the adhesive is provided, typically on at least a portion of the wearer's contact surface of the flange, The relationship between the coefficient G " ₂₅ provides for easy and painless removal of the local adhesive from the wearer ' s skin applied on at least a portion of the wearer contact surface of the feces treatment apparatus for attaching the apparatus to the wearer & It is related to the category.

The adhesive of the present invention is provided as a layer having a thickness (C) such that a viscosity coefficient G " ₂₅ (100 rad / sec) and a thickness (C) satisfy the following empirical formula:

G " ₂₅ ? [(7.00 + C) 3000] Pa

Also preferably, the following empirical formula is satisfied:

G? ₂₅ ? [(5.50 + C) 1700] Pa

BRIEF DESCRIPTION OF THE DRAWINGS The present invention will be better understood from the following description taken in conjunction with the accompanying drawings.

According to the present invention, the adhesive can be used on the feces processing apparatus 10 applied to the perianal region of the wearer as seen in Fig. 1 and on the urine treatment apparatus as shown in Fig. The " skin " according to the present invention not only relates to a particular dermis of the user but also includes hair and mucous tissue which are usually found in the genital area.

The adhesive is preferably provided with a desired pattern on the wearer contact surface 23 of the flange 12 of the device 10, preferably as a layer with a constant thickness or caliper C. [ This layer can be, for example, in the form of a dot, spiral or strip, preferably continuously or variably discontinuous.

Although the adhesive is used as a pressure-sensitive adhesive on human skin hair and mucous tissue, it is believed that the local adhesive composition is considered as a typical pressure-sensitive adhesive (hereinafter referred to as PSA) based on the most characteristic rheological behavior of identifying these materials It is understood to be difficult.

In fact, as is known to those skilled in the art of adhesives, the most distinctive feature of distinguishing PSA from other materials that can temporarily adhere the object (e.g., water between two glass sheets) And especially the modulus of elasticity (G ') vary greatly with the frequency of the applied stress. Moreover, while the frequency of the applied stress varies from a typical coupling frequency to a typical separation frequency, i. E., From 1 rad / s to 100 rad / s as indicated below, the G 'of the PSA increases by a multiple order magnitude .

As a first result, therefore, it is unacceptable to form the material to be used as the " adhesive " by the value of the rheological parameter and in particular by G 'at the fixed frequency value. This can be misleading because, in the absence of other properties, it contains materials that do not have practical values. Therefore, rheological properties should be based on dynamic considerations. This applies not only to the modulus of elasticity (G ') but also to the viscosity coefficient (G "), and thus also to tan (d) = G" / G'.

PSA not only has a high variance of G 'over the frequency considered, but also has a variance that is closer to or even greater than the value of G', that is to say, tan (d) It is known that it is approximately 1 or more.

Without being bound by theory, this can be interpreted as meaning that much of the energy applied for unbonding dissipates into the adhesive (thus, it is not effective at disengagement) and through the adhesive-skin interface.

As indicated above, materials useful as adhesives according to the present invention have rheological properties that are measured within the range of the reference temperature and frequency of 37 ° C (which is the same as the normal human body temperature). Upon application of the adhesive to the body excretion treatment device, it is found that the contact of the adhesive is formed at a low frequency, while the disengagement takes place at the rate of removing the device. It is known that this speed is expressed as a frequency of 100 rad / s, while the low frequency that forms the adhesive bond is of the order of 1 rad / s. Thus, the frequency range for use in accordance with the present invention is between 1 and 100 rad / s.

It is contemplated that adhesive bonding properties are best selected at body temperature. Since the adhesive according to the present invention is used directly on the skin and a person skilled in the art selects an adhesive composition having a small specific heat (e.g., preferably less than 4 J / g / K), the actual temperature of the adhesive can reach 37 [ It is even warmed by people before application.

The absolute value of the modulus of elasticity should not be too great, in order to have a good coupling condition, i.e. a frequency of about 1 rad / s, or the adhesive will become too rigid so that close bonding or molding to the surface I will not. It is also important that the material has a low absolute value of G " so that it remains flexible and can adhere smoothly to the skin while having a good cohesion that is particularly valuable for use in a feces handling device.

G ratio of _'37 (1 rad / sec) vs. _{G "37 (1 rad / sec} ) is important to ensure that a balance of these two values when bonded to the skin.

Importantly , The ratio

It is necessary to be large enough to ensure that the dynamic behavior of both the elastic and viscous modulus is maintained in relation to providing a fixed adhesion and no pain and easy removal.

Finally, those skilled in the art will also appreciate that the glass transition temperature (Tg), specific heat and non-thermal conductivity of the adhesive composition are useful parameters to more fully define the group of adhesives that are useful.

Preferably, the following features should be satisfied for the adhesive of the present invention.

_{G '37 (1 rad / sec} ) is in the range of 1500 Pa to 20000 Pa,

Preferably in the range of 1500 Pa to 15000 Pa,

Most preferably in the range of 3000 Pa to 10000 Pa.

G " ₃₇ (1 rad / sec) is in the range of 100 Pa to 15000 Pa,

Preferably in the range of 100 Pa to 10000 Pa,

Most preferably in the range of 300 Pa to 5000 Pa.

G ratio of _{'37 (1 rad / sec)} / G "37 (1 rad / sec) is in the range of 1 to 30.

Is in the range of less than 0.5, preferably in the range of 0.7 to 3, and most preferably in the range of 1 to 1.8.

The value of G _'37 / G " ₃₇ for frequencies in the range of at least 1 rad / s to 100 rad / s does not exceed about 30, preferably not more than 20, Should be not less than 3.3, more preferably not less than 5, and most preferably not less than 10.

In addition, the rheological behavior may be related to the value of the glass transition temperature (Tg). For the local adhesive according to the invention, the Tg should preferably be below -15 DEG C, more preferably below -20 DEG C, most preferably below -25 DEG C.

In addition, the rheological behavior and acceptability of the adhesive may be related to specific heat. Preferably, the specific heat of the local adhesive is less than 4 J / g / K, more preferably less than 3 J / g / K, and most preferably less than 2 J / g / K.

In addition, the rheological behavior and acceptability of the local adhesive may be related to the specific heat conductivity of the adhesive. Preferably, the specific heat conductivity is as low as possible, but more preferably between 1 and 0.1 W / m / K, and most preferably between 0.6 and 0.1 W / m / K.

In order to provide an adhesive composition that meets the conditions of the rheological and physical properties of the adhesive, it is preferred to include these adhesives of a hydrocolloid consisting of a three-dimensional matrix and less than 10% by weight, preferably less than 5% A suitably medically compatible, substantially water-insoluble, pressure-sensitive adhesive may be used.

The hydrocolloids used herein include, but are not limited to, colloidal absorbing materials and modified starches such as starch, modified starches such as dextrin, cellulose esters such as carboxymethylcellulose, pectin carya, gelatin, gum, gum arabic, locust bean gum and carboxypoly Refers to a mixture of colloidal materials selected from natural gums such as methylene.

According to the present invention, a three-dimensional matrix referred to herein as a gel comprises a polymer that can be physically or chemically crosslinked as an essential component. The polymer can be obtained either naturally or synthetically. The uncrosslinked polymer may be selected from the group consisting of vinyl alcohol, vinyl esters and copolymers thereof, carboxyvinyl monomers, vinyl ester monomers, esters of carboxyvinyl monomers, vinyl amide monomers, amine or cationic vinyl monomers including 4 groups, N-vinyl lactam monomers, Acrylic resins such as polyvinyl pyrrolidone, polyvinyl pyrrolidone (PVP), hydroxyethyl methacrylate, methoxydiethoxyethyl methacrylate and hardoxydiethoxyethyl methacrylate, and sulfonic acid salts such as acrylamide sulfonate polymer Polymers and mixtures thereof. Alternatively, the uncrosslinked polymer may be a homopolymer or a copolymer of a copolymer of polyvinyl ether, or a half ester of a maleic ester. Similarly, other suitable polymer monomer units may be used, for example, as polyvinyl alcohol and polyacrylic resin acids or copolymers such as ethylene and vinyl acetate.

As in yet another variation, the polymer may be a block copolymer thermoplastic elastomer such as an ABA block copolymer such as an ethylene-propylene block copolymer or a styrene-olefin-styrene block copolymer. More specifically, such polymers include grades of hydrogenated styrene / ethylene-butylene / styrene (SEBS), styrene / isoprene / styrene (SIS), and styrene / ethylene-propylene / styrene (SEPS).

Particularly preferred polymers are acrylic resins, sulfonic acid salt polymers such as acrylamide sulfonic acid salt polymers, vinyl alcohol, vinyl pyrrolidine, polyethylene oxide, and mixtures thereof.

According to the invention, the three-dimensional adhesive matrix also essentially comprises a plasticizer which is preferably liquid at ambient temperature. This material is selected so that the polymer can be dissolved or dispersed within the plasticizer. For embodiments in which irradiation bridging is carried out, the plasticizer should also be a suitable irradiation bridging so as not to inhibit the irradiation bridging treatment of the polymer. The plasticizer may be hydrophilic or hydrophobic.

Suitable plasticizers include, but are not limited to, water, alcohols, polyhydric alcohols such as glycerol and sorbitol, and glycols, ether glycols such as mono- or diesters of polyalkylene glycols, mono- or diether polyalkylene glycols, Amide, polyamides, quaternary ammonium compounds, polyethyleneimine and epimers, to the molecular weight of about 600, to about 600 molecular weight), glycolates, glyceryl, sorbitan esters, esters of citric acid and tartaric acid, imidazoline derived amphoteric surfactants, Condensation products of chlorohydrin, liquid polybutanes, esters such as phthalates, adipates, stearates, palmitates, sebacates or natural and synthetic oils such as myrrh, vegetable oils, mineral oils, and combinations thereof . Polyhydric alcohols, polyethylene glycols (having a molecular weight of up to about 600), glycerol, sorbitol, water and mixtures thereof are particularly preferred.

Typically, the adhesive comprises a ratio of polymer to plasticizer in a molecular weight of from 1: 100 to 100: 1, more preferably from 50: 1 to 1:50. However, the exact amount and ratio of polymer and plasticizer follows a great extent to the exact nature of the polymer and plasticizer used and can be readily selected by one skilled in the art. For example, high molecular weight polymer materials require larger amounts than lower molecular weights.

In addition to the components of the adhesive polymer and the plasticizer, the adhesive may comprise a number of optional additional components, for example the composition may comprise from 0% to 50% by weight of a sticky resin composition . These sticky resins are particularly useful in combination with the ABA block copolymer adhesive component. Suitable sticky resins include, for example, resin derivatives, terpenes, and hydrocarbon resins such as terpene-phenol resins, C ₅ and C ₅ / C ₉ resins, aromatic resins and hydrogenated resins.

Other suitable optional ingredients include 0 to 10 wt.%, More preferably 0 to 5 wt.% Of materials for facilitating and stabilizing the three-dimensional matrix and matrix forming process. For example, for hydrophobic adhesive compositions, they include C ₈ to C ₂₂ fatty acids, their metal salts and their polyoxo derivatives; Lanolin derivatives; Silica; Bentonite, montmorillonite, and derivatives thereof; Waxes or mixtures thereof.

Other conventional additives known in the art, such as preservatives, antioxidants, anti-UV agents, colorants, mineral fillers, and mixtures thereof, may also be included in the adhesive compositions quantitatively up to 10% each.

According to the present invention, the polymer component of the adhesive can be physically or chemically crosslinked to form a three-dimensional matrix. Physical crosslinking refers to a polymer that includes crosslinking with physical properties such that there is no chemical covalent bond, a region within the three-dimensional matrix with high crystallinity, or a region with a high glass transition temperature. Chemical crosslinking refers to polymers that are joined by chemical bonds. Preferably, the polymer is chemically crosslinked by a spinning technique such as thermal-, E-beam-, UV-, gamma- or microwave radiation.

Also, when chemical cross-linking is formed in this system, a polyfunctional crosslinker and / or a free radical initiator may appear in the premix to initiate crosslinking upon irradiation. Such initiators may preferably appear quantitatively up to 5% by weight.

The resulting adhesive composition can be divided into three types; This is a composition of hydrophilic, hydrophobic and mixed phases depending on the nature of the composition of the adhesive.

The hydrophilic adhesive is a composition in which the plasticizer is water or a mixture of glycerol or glycol and / or a mixture thereof, and the polymer phase is synthetic (for example, a polyacrylic resin). Alternatively, these compositions may comprise up to 10% by weight of a natural rubber in colloidal state.

The hydrophobic adhesive is a composition in which the plasticizer is typically a blend or mineral of an oil or vegetable oil, and the polymer is usually a synthetic polymer, preferably an elastomer that is soluble or dispersible in such oils.

The mixed phase adhesive forms two or more separate phases, both in the hydrophobic and hydrophilic components, possibly in both the plasticizer and the polymer. In this case, the emulsifier preferably appears at an appropriate level to form a stable emulsion between the unsuitable phases.

A preferred adhesive composition for use in the present invention is hydrophilic, which is particularly effective on wet skin.

Adhesives suitable for use herein include " Promeon Division of Medtronic, Inc. ", Minneapolis, Minn. Products "Promeon" and "3M" products, including hydrogel adhesives.

The adhesive is provided on the part of the wearer's contact surface of the flange, usually as a layer having a thickness or caliper (C) which can be varied, preferably constantly or variably, with respect to the surface concerned by the application of this adhesive .

Particularly when considering the removal phase of the adhesive composition for adhering to the skin of the wearer, the adhesive does not cause pain to the wearer and therefore does not adhere too strongly when removed to the skin and hair of the wearer, A good removal condition of the local adhesive applied to at least a portion of the wearer contact surface of the flange, i.e. a frequency of about 100 rad / sec, is achieved when it can be easily removed from the hair normally located on this area of the skin Is normally recognized. Moreover, good removal suggests that the adhesive does not leave residues on the skin or hair.

According to the present invention, the thickness or caliper (C) measured in millimeters (mm) of the layer on which the adhesive is provided, on at least a part of the wearer contact surface of the flange of the feces handling apparatus, The relationship between the viscosity coefficient (G " ₂₅ ) at about 100 rad / sec provides an indication of the painless and easy removal of the adhesive from the skin.

Without being bound by theory, the high value of G " ₂₅ at 100 rad / sec, which corresponds globally to the high adhesion of this composition, ensures that the energy applied for removal is more evenly distributed within the mass of the adhesive, In other words, a thinner layer of adhesive may have a lower G " ₂₅ of less than 100 rad / sec to reduce pain upon removal of the device in need.

According to the present invention, the adhesive of the present invention, which is provided as a layer having a thickness C measured in millimeters (mm), has a viscosity (G " ₂₅ (100 rad / sec) Satisfies the empirical equation of:

G " ₂₅ ? [(7.00 + C) 3000] Pa

Preferably, the following empirical formula is satisfied:

G? ₂₅ ? [(5.50 + C) 1700] Pa

In the preferred embodiment of the present invention, the thickness C of the adhesive layer is constant, but if the above-mentioned relationship between C and G " ₂₅ is satisfied in any case, then this adhesive layer also has a different part of the wearer contact surface of the flange to which it is applied As shown in FIG.

In order to evaluate the influence of the thickness C of the adhesive layer in relation to the viscosity (G " ₂₅ (100 rad / sec)) of the local adhesive of the present invention when removing the local adhesive used for attaching the disposable absorbent to the wearer's skin , Removal Pain Grade Test is carried out. In this test, on the skin of the forearm part of the member of the sensory panel, the same local adhesive is applied to the layers of the different thicknesses and the adhesion of the standard substrate is achieved, The pain upon removal is assessed in terms of pain as described below.

According to the present invention, any disposable human body waste disposal apparatus known in the art can be provided with the adhesive according to the present invention.

Typically, the apparatus 10 for treating urine will preferably have a hole 21 and a flange 12 surrounding the hole for adhesive attachment to the wearer's perianal area, as can be seen in FIG. And a bag (11). Any catheter or urine treatment device known in the art may be provided in accordance with the present invention.

The bag 11 used here is a flexible container for accommodating feces waste. The bag 11 may be of any shape or size depending on its intended use, that is to say, whether it is used for a patient who is lying alone or whether it is for an active patient or an infant who is suffering from incontinence, Can be provided. For example, elongated bag, which is mainly tubular or rectangular, is usually used by patients who are lying down and those who are older. For more active wearers, such as infants and adults, this disposable human body excretion treatment device is preferably formed in an anatomical shape that allows the device to follow the contours of the thighs and be worn inconspicuously under normal clothing Do.

Particularly preferred shapes include a flat circular bag, a conical bag, a frusto-shaped bag, and a pyramid or truncated pyramid or a conical bag. In the most preferred embodiment of the feces treatment apparatus of the present invention, the bag 11 has a substantially frusto-conical shape. A preferred shape of the urine bag is shown in Fig. Typically, the bag has a wearer contact portion 16 and a garment contact portion 17. The wearer contact portion 16 of the feces treatment apparatus 10 is disposed close to the wearer's buttocks. As such, the wearer contact portion 16 sufficiently covers the buttocks of the wearer and is not caught between the thighs of the wearer.

Also preferably, the bag 11 is shaped to allow the bag to be at least partly inserted and held in the middle of the wearer's buttocks, thereby ensuring good contact between the flange and the skin of the wearer. For example, the bag 11 may be provided with a neck or a conduit.

Preferably, the bag 11 is designed to have a sufficient volume for excretion, under various wearing conditions, and even when the patient is free to move, not only in a lying patient. For example, by sitting on the bag 11, a considerable volume is reduced in some areas of the bag. Therefore, it is preferable that the bag 11 is formed so as to have a sufficient volume in an area which is not subjected to much pressure under wearing conditions such as sitting.

The bag 11 safely receives any trapped material and is typically designed such that the bag is liquid impermeable but breathable. The bag 11 is designed to have sufficient strength at the time of use and also to withstand rupture even when the pressure on the bag 11 is exerted under normal wearing conditions such as sitting.

According to the present invention, depending on the shape of the bag 11 required, the bag 11 may be made of a single piece of material, or made of a plurality of separate pieces of material, And is sealed at the outer edge of each of them.

In a preferred embodiment, the bag has a wearer contact portion 16 comprising a separate piece of material and a garment contact portion 17. The wearer contact portion 16 and the garment contact portion 17 are sealed at the outer edge of the bag 11 to form the bag outer rim 18. As shown in Figure 1, the wearer contact portion 16 of the bag 11 has two (2) pieces fixed to one another by means known to those skilled in the art, such as an adhesive, And another portion 19. The rim 18 may also be inside the bag so that it has the same width as the inner surface 15 of the bag 11 rather than the outer surface 30 of the bag 11. Preferably, the bag 11 is asymmetric with respect to the transverse axis so that the distance measured in the longitudinal direction from the center of the hole 21 to the front end of the bag 11 is less than the distance measured to the rear end of the bag 11 short.

According to the invention, the bag 11 may comprise one or more layers, preferably two or three layers. The layer on the inside of the bag 11, which at least partly comes into contact with the excreta, is called the inner layer. The outermost layer of the bag, which is at least partially in contact with the wearer ' s skin and the wearer ' s garment, is referred to as an outer layer.

The layers of backing material may preferably be made of a material such that the bag is liquid impermeable. These layers are particularly made of a material such as a nonwoven fabric or a film. In a preferred embodiment of the present invention, the laminate may be formed of a nonwoven layer and a film. The laminate can be formed by means known to those skilled in the art.

Any non-woven layer may be formed of a woven fabric, a spunlaced fabric, fluid jet entangled fabrics, air-laid fabrics, wet-laid fabrics, dry-laid fabrics, Meltblown fabrics, staple fiber carded fabrics, spoon bonded fabrics, stitch bonded fabrics, apertured fabrics, combinations of such fabrics, and the like.

Preferably, a suitable film material of the layers comprises a thermoplastic material. The thermoplastic material may be selected from all types of hot melt adhesives, polyolefins, especially polyethylene, polypropylene, amorphous polyolefins, and the like; Materials containing soluble elements include natural fibers such as cellulose-wood pulp, cotton, jute, and hemp; Synthetic fibers such as glass fiber, rayon, polyester, polyolefin, acrylic resin, polyamide, aramid, polytetrafluoroethylene metal, polyimide; A fiber or polymer comprising a material comprising a high temperature dissolving / cold melting polymer, a copolymeric polyester, a polyvinyl chloride, a polyvinyl acetate / chloride copolymer, a copolymer polyamide, A binder; Air and vapor permeable materials include microporous membranes supplied by "EXXON Chemical Co., III, US" under the trade name "EXXAIRE" or microporous membranes supplied by "Mitsui Toatsu Co., Japan" under the trade name "ESPOIR NO" ; These materials include monolithic breathable materials such as "Hytrel ™" supplied by "DuPont" and "Pebax ™" supplied by ELF Atochem, France.

In a preferred embodiment, the membrane composed of any layer is preferably permeable to vapors such as gas and water vapor, such as air, such that moisture vapors exiting the wearer ' s body are trapped and condensed, resulting in a hot, Thereby avoiding the problem of uncomfortable conditions.

Preferably, a nonwoven layer is provided on the outer layer of the bag. These layers of material exhibit a non-flat surface to the wearer's skin, significantly reducing the problem of closure and significantly improving skin health.

In a preferred embodiment of the present invention, the bag comprises two layers. Preferably, the outer layer comprises a nonwoven layer and the inner layer comprises a membrane.

In another preferred embodiment of the present invention, the bag 11 comprises three layers, preferably one layer and two nonwoven layers. In a more preferred embodiment, the membrane is sandwiched between two nonwoven layers. This series of layers results in a closed fiber structure, which results in a particularly pleasant texture when in contact with the skin of the wearer. In another preferred embodiment, the inner layer comprises a film and the other two layers comprise a nonwoven.

The nonwoven fabric layer or the nonwoven fabric layers included in the bag 11 may be hydrophobic or hydrophilic. If the bag 11 does not comprise a film layer, preferably at least one of the nonwoven layers has hydrophobicity. As a result, the passage of the fluid is resisted through the wearer contact portion 16 of the body excretion treatment device and the wear contact portion 17. If the backing layer comprises a hydrophobic nonwoven layer, the other nonwoven layers may have hydrophilicity.

Typically, the nonwoven layer is treated with a surface active material, such as a fluorochemical or other hydrophobic finish, to provide the necessary hydrophobicity. However, the nonwoven layer may be treated equally with a coating of a liquid impermeable material, such as a hot melt adhesive, or with a coating of hydrophobic compounds such as silicon or rubber and vegetable and mineral waxes, or may be applied, for example, using a nanoparticle or plasma coating technique It can be physically processed.

In addition, the nonwoven layer can be treated with a medicament to enhance the tactile softness of the wearer contact portion 16 and the garment contact portion 17. Such agents include, but are not limited to, vegetables, animal or synthetic oils, silicone oils, and the like. It is known that the use of this agent imparts silk or flannel feel to the nonwoven fabric layer without feeling slippery or greasy with the user's touch. In addition, surfactant materials comprising anionic, non-ionic, cationic and amphoteric surfactants may be added to further improve smoothness and surface smoothness.

Moreover, the nonwoven layer can be impregnated with the lotion, so that it can have the advantages of the desired therapeutic or protective coating lotion. The lotion coating on the wearer contact portion 16 and the wear contact portion 17 is movable to the wearer ' s skin by vertical contact and movement of the wearer and / or body heat. Typically, mineral oils in the form of lotions are recognized by imparting a smooth protective coating to the wearer ' s skin. It is also possible to impregnate the nonwoven fabric layer with a solid oil phase of the cream process, or with pressure- or heat- or hydrorupturable capsules containing, for example, baby oil.

In one embodiment of the present invention, the bag 11 may comprise an absorbent material. The absorbent material may include any absorbent material capable of absorbing and retaining the liquid. The absorbent material may include a wide variety of liquid absorbent materials commonly used in disposable containers there and other absorbent materials such as pulverized wood pulp called air felts. Examples of other suitable absorbent materials include creped cellulose wadding; A meltblown polymer comprising coform; Cellulosic fibers that are chemically rigid, deformed or crosslinked; A tissue comprising a tissue wrap and a tissue laminate; Absorbing foam; Absorbent sponge; Superabsorbent polymer; Absorbent gel material; Or any other known absorbing material or combination of materials.

The absorbent material can be positioned in the bag 11 in a suitable manner. For example, the absorber may be loosely arranged in the bag or fixed to the inner layer of the bag 11. [ Known techniques for securing the absorber to the nonwoven fabric and the membrane substrate can be used to secure the absorber to the inner layer of the bag. The absorber can also be arranged to have any desired shape or shape (e.g., rectangular, elliptical, circular, etc.).

In the embodiment shown in Fig. 4, an adhesive patch 40 is provided on the outer surface of the bag 11 to fix the bag 11 to the wearer's body. Preferably, the adhesive patch 40 is located on the outer surface of the bag 11 and is secured to the abdomen of the wearer in use. The number, size, and shape of any adhesive patches 40 may be used depending on the intended use of the apparatus.

The apparatus for treating human excreta according to the present invention, in particular the apparatus for urine treatment, preferably further comprises an additional acquisition layer. The acquisition layer is typically fixed to the inner surface of the bag. However, the acquisition layer may also be secured to the flange, or to both the flange and the inner surface of the bag. Preferably, the acoustic layer is positioned to prevent or prevent the wearer's genitalia from coming into direct contact with the absorbent material. The acquisition layer is fluid permeable so that the urine can easily pass through, so that this urine can be absorbed by the absorber.

The acquisition layer is a porous foam; Delusional foams; Perforated plastic film; Or woven or nonwoven webs of natural fibers (e.g., wood or cotton fibers), or a combination of natural and synthetic fibers. If the acquisition barrier layer comprises fibers, the fibers may be spoon bonded, fired, wet laid, melt blown, hydroentangled, or otherwise treated as known in the art.

The acquisition layer is designed to have a pore size that prevents the absorbent material from passing therethrough and contacting the skin of the wearer. Although it is designed not to have a large pore size that allows the passage of the absorbing material, preferably the acquisition layer has a pore size that is larger than the pore size of the absorbing material.

Preferably, the acquisition layer has a smaller hydrophilicity than the absorbent material. The acquisition layer may be treated with a surfactant to increase the initial wetting. However, when treated with a surfactant, the acquisition layer should be less hydrophilic than the absorbent layer. Suitable methods of treating the acquisition layer with a surfactant include spraying the surfactant to the acquisition layer and soaking the material in the surfactant. Alternatively, the surfactant can be combined with the acquisition layer.

As shown in Fig. 1, the bag 11 is provided with a hole 21, whereby the excrement is accommodated from the human body before being stored in the back cavity. The hole 21 is surrounded by the flange 12 and may be of any shape or size, for example circular, elongated, or heart-shaped, and may be symmetrical or asymmetric, And has an elongated shape in the longitudinal direction, the transverse direction, or both directions, and the contour of the hole portion is two elliptical shapes in which each main axis is substantially vertical.

The flange 12 is attached to the bag 11 according to any means known to those skilled in the art that can provide a permanent or removable attachment. Preferably, however, the flange is attached to the bag by an adhesive. Typically, the bag is attached to the flange to the outer periphery of the flange so as not to interfere with the entry of the excreta.

The flange may be provided in its size depending on the wearer group using the apparatus. Similarly, the flange may be provided in its shape and preferably has a symmetrical shape including a plurality of lobes 13. [ The flange 12 may include a forward protrusion 28 and a back protrusion 29 at the wearer's perineum and biceps region.

The flange includes a garment contact surface (22) and a wearer contact surface (23). In the preferred embodiment, these are two large planes that are substantially flat, but the flange also includes protrusions designed to fit in the perineum or bony area of the wearer.

The flange 12 should be made of a soft, flexible, and adaptable material to facilitate placement of the flange in the perianal region. Typical materials include nonwoven materials, woven fabrics, open celled thermoplastic foams, composite materials of open-cell foam and stretch nonwoven fabrics, and membranes and combinations thereof. It is known that the closed-cell foam of polyethylene is effective, but open-cell foam is more preferably used. Preferably, the foam has a thickness in the usual range of 0.1 to 5 mm and a basis weight of 5 to 250 g / m ² , more preferably 50 g / m ² . In addition, other suitable plastic sheet materials having other thermoplastic foam materials, or the above-described characteristics of such foam (i. E., Softness, flexibility, stretchability and shrinkage) can be used. Preferably, the material of the garment abutment surface 22 of the flange 12 extends into the formed hole to form a skirt or flap of material that prevents unintentional adhesion of the surface edges of the flanges that form holes in each other during use can do.

According to the present invention, preferably, the adhesive 20 is covered with separating means (not shown) for protecting the adhesive 20, such as paper made of silicone. The adhesive 20 may cover the entire wearer contact surface of the flange or may have at least one, preferably two to six non-adhesive portions. These portions may include an adhesive-free or an inert or concealed adhesive. 1, the adhesive is not applied to the entire wearer contact surface area of the flange 12, so that it has lobes 13 on either side of the non-adhesive flange 12, Can be used to facilitate placement and removal of the device while avoiding contact with the adhesive. However, it is also preferred that these lobes are covered with separating means. Before applying the feces treating apparatus 10 to the skin of the wearer, the separating means, if any, is removed.

The adhesive 20 may be applied to the wearer contact surface 23 of the flange 12 by any means known in the art such as slot coating, spiral, or bead application or transfer. Typically, the adhesive 20 will have a basis weight of 20 g / m ² to 2500 g / m ² , more preferably 500 g / m ² to 2000 g / m ² , most preferably 700 g / m 2 basis of ² to 1500 g / m ² is applied to the weight. For example, for a human excreta disposal apparatus 10 used for infants, the amount of glue may be less than for a human excreta disposal apparatus 10 designed for active adult incontinence patients.

It will be appreciated that the disposable human body excretion processing apparatus 10 of the present invention is particularly useful and beneficial when used in conjunction with a garment, or a diaper 50, preferably a disposable diaper (see FIG. 2). Preferably, the body exudate treatment apparatus 10 is located in the perianal region of the wearer before the disposable diaper 50 is applied. In particular, the diaper 50 is located on the body waste disposal apparatus 10 and is fixed in a conventional manner around the wearer's body. In addition, the composite human body waste disposal apparatus 10 and the diaper 50 may be separated from each other if the separation between the urine and the feces is excellent, because the group of ordinary wearers includes very old, very young, It can be seen that the system can actually reduce skin irritation, which can sometimes occur. In fact, the use of the body excretion treatment device 10 allows a separation layer between the wearer ' s teeth and the diaper 50, i. E. Forming part of the absorbent core 58 of the diaper 50. [ The diaper 50 can be applied to accommodate the body waste disposal apparatus 10 according to the teachings of the present invention in an effective and comfortable manner, or in a conventional form (an example not limited by other means but described below) have.

As used herein, a " disposable diaper " refers to a product that absorbs and accepts body exudates; More particularly, absorbs and accommodates a variety of emissions disposed on or proximate to the body of the wearer and discharged from the body and is discarded after a single use (i.e., not washed or otherwise restored or reused) Refers to products that are to be recycled, fertilized, or otherwise disposed of in an environmentally friendly manner. As used herein, the term " diaper " refers to a garment normally worn by infants or incontinence patients who are pulled up between their legs and secured around the wearer's waist.

Fig. 3 is a partially cutaway perspective view of a diaper 50 embodying the present invention before the diaper is placed on the wearer above the stool processing apparatus 10. Fig. 3, the preferred diaper 50 includes a body portion 52 and a resilient mechanical fastening device 54. As shown in Fig. The preferred body portion 52 includes a liquid pervious topsheet 56, an absorbent core 58, a liquid impervious lower sheet 60, and an elastically retractable leg cuff 62; Preferably, each leg cuff 62 includes a side flap 64 and one or more resilient members 66. For the sake of simplicity, only one elastic member 66 is shown in the side flap 64. On the other hand, the topsheet 56, the absorbent core 58, the bottom sheet 60, the side flaps 64, and the resilient member 66 can be assembled in a variety of known shapes. Preferred disposable diaper shapes are described in US 3,860,003, and more preferred disposable diaper shapes are described in WO 93/16669. In this preferred diaper configuration, the lower sheet 60 is joined to the upper sheet 56; The absorbent core 58 is positioned between the top sheet 56 and the bottom sheet 60; The side flaps 64 extend outwardly from each side edge of the absorbent core 58 along these side edges; The elastic members 66 are then operatively engaged with the respective side flaps 64.

3 shows a body portion 52 having an equal width of the top sheet 56 and the bottom sheet 60 and having a length and width dimension greater than the length and width of the absorbent core 58. [ The upper sheet 56 overlaps the lower sheet 60 to form an outer edge 68 of the body portion 52.

Body portion 52 has an inner surface 74 and an outer surface 76. When the lower sheet 60 is used, this lower sheet typically forms an outer surface 76 of the body portion 52. The inner surface 74 is the surface of the diaper 50 facing the outer surface 76 and is typically formed by the top sheet 56 in this embodiment. In general, the inner surface 74 of the diaper 50 is a surface having the same area as the outer surface 76, and is mainly in contact with the wearer when the diaper 50 is worn.

The absorbent core 58 of the body portion 52 is compressible to the wearer's skin and is comfortable and non-irritating, and any absorbent means is possible that can absorb and retain liquids and other body exudates such as urine. The absorbent core 58 can be fabricated from a wide variety of liquid absorbent materials commonly used in disposable diapers in a variety of sizes and shapes (e.g., rectangular, hourglass, "T", asymmetric, And other absorbing materials such as pulverized wood pulp. Examples of other suitable absorbent materials include crepe cellulose wadding, melt blown polymeric materials including coform, absorbent sponge, superabsorbent polymer, absorbent gel material, or other equivalent materials or combinations of these materials. In addition, the shape and configuration of the absorbent core 58 can be modified (e.g., the absorbent core 58 has a variable caliper area, a hydrophilic gradient, a superabsorbent gradient, or a low average density and a low average basis weight acquisition zone And may comprise more than one layer or structure). In addition, the size and absorbent capacity of the absorbent core 58 may be varied to accommodate wearers ranging from infants to adults.

The lower sheet 60 is impermeable to liquid (e.g., urine), and this lower sheet is made of a thin plastic film, preferably a thermoplastic film, although other flexible liquid impermeable materials can also be used. As discussed herein, " flexible " refers to a material that is flexible and can readily conform to the approximate shape and contours of the body. The lower sheet 60 prevents the effluent absorbed and received in the absorbent core 58 from fouling the product in contact with the diaper 50, such as underwear and bedding. Thus, the lower sheet 60 may comprise a polymeric film, such as a thermoplastic film of polyethylene or polypropylene, or a composite material, such as a film-coated nonwoven material. Typical membranes are manufactured by Tredegar Industries, Inc. of Terre Haute, Ind. Or " BP-Chemical PlasTec " of Lotte Henschlast 1, Germany de-8000.

Preferably, the lower sheet 60 is made to have a more garment outline. Further, the lower sheet 60 may be provided with, for example, a micro-hole, so that the steam is discharged from the absorbent core 58, while the exhaust does not pass through the lower sheet 60. The size of the lower sheet 60 is determined by the size of the absorbent core 58 and the precise diaper design chosen.

The topsheet 56 of the diaper is smooth to the wearer's skin, has a soft touch, and does not cause inflammation. In addition, the topsheet 56 is liquid permeable to allow liquid (e.g., urine) to readily pass through its thickness. Suitable topsheet 56 may include porous foams, reticulations, apertured membranes; Or from a wide range of materials such as woven or nonwoven webs of natural fibers (e.g., wood or cotton fibers) or from a combination of natural and synthetic fibers. Preferably, the top sheet is made of a material that isolates the wearer ' s skin from the liquid held in the absorbent core 58. [

There are many manufacturing techniques that can be used in the manufacture of the topsheet 56. For example, the topsheet 56 may be a nonwoven web of fibers. The typical topsheet 56 is thermally bonded to the surface shape by means well known to those skilled in the art. Suitable topsheet 56 may be, for example, " Veratec Inc. ", which is a division of International Paper Company, Walpole, Mass. . In particular, the top sheet 56 suitable for incontinence garments comprises a molded thermoplastic film.

According to the present invention, adhesives that match the rheological properties defined above can be found in addition to these uses in the feces treatment apparatus, and also in applications where other products are applied to the skin. Suitable products may be disposable absorbent articles such as sanitary napkins and panty liners. The invention also relates to a skin or wear protection product, such as a genital-, knee- or elbow protector or band; Clothing such as brass, surgical gowns, or parts of garments during work in a tailor; Nasal plasters; Prosthetic inserts such as humidification replacements or wigs; For example, heat labs, pads and / or packs for local pain relief or simply to provide heat; For example, a cold pack for pain relief of bruises and for reducing swelling; hearing aid; Face mask; Decorative products such as jewelry, earrings, dresses, tattoos; Goggles or other eyes. These products have non-absorbency to body fluids.

Test pain relief

The pain relief test is provided as a layer of glue and is used to assess pain while removing a sample already attached to the wearer ' s skin from the wearer ' s skin. This test specifically assesses the pain at the time of removal of each sample as compared to the pain obtained by removing the reference sample constituted by a commercially strong medical plaster.

sample preparation

This test was carried out by using the "Effegidi SpA of Colorno" (Parma, Italy), which is provided on one side with a continuous layer of local adhesive having a selected thickness, to which an Acumeter model LH-1 ejector is applied Is carried out on a rectangular sample of 60 x 20 mm made of the same 23 탆 polyester film.

Test method

A panel of six evaluators is selected for this test. This test is performed in a climate controlled laboratory room maintained at a temperature of 23 ° C and a relative humidity of 50%. The special treatment of any wearer's skin is not required beyond normal cleaning / washing with water and soap. Next, the skin is dried for at least 2 hours before testing so that the skin is in equilibrium with the indoor conditions. Different adhesives were evaluated in this test compared to the reference sample (R). Each sample is centered between the wrist and the elbow at the medial side of the evaluator's forearm and is applied with the operator's hand while the short side of the sample is aligned with the length of the arm. The operator exerts the same pressure on each sample with the palm of the hand, which is usually applied to the bottom to attach the medical plaster to the skin. Each sample is worn for a predetermined period of time, after which the sample is slowly and smoothly pulled away from the evaluator ' s skin.

One row of reference samples R and four rows of test samples are each applied, worn and removed to the skin of the wearer; Each sample is worn for one minute with a delay of five minutes between two consecutive samples of the same rows and a delay of 15 minutes between two different consecutive rows. The reference sample R is always applied as a first sample of each row and is worn and removed. The subsequent application / wear / removal of the test sample in each of the first three columns becomes random if the repetition of each column is not allowed and no sequence is repeated in the first three columns. In the fourth column, one of the test samples is tested twice and the reference sample R is the first sample. Overall, each sample should be tested with the same number of runs (24 times).

The evaluators are asked to evaluate each sample using a pain scale ranging from 0 to 10, where 0 corresponds to no pain and 10 corresponds to pain at the time of removal of the mood sample (R). The pain values for each sample were obtained by averaging 24 observations.

The results obtained from this test were interpreted by the statistical analysis program "Comparison of Population Means-Paired Samples", and the difference between the pain values of the samples is statistically significant.

Claims (14)

A disposable human body waste disposal apparatus (10) comprising a bag (11), the bag (11) having a hole and a flange (12) surrounding the hole (21) (23) and a garment abutment surface (22), wherein the adhesive is provided as a layer having a thickness (C) measured in millimeters (mm) The adhesive has a viscosity coefficient (G " ₂₅ ) at a temperature of 25 DEG C (77 DEG F) The viscosity (G " ₂₅ (100 rad / sec)) of the adhesive and the thickness (C) G " ₂₅ ? [(7.00 + C) 3000] Pa (10). ≪ / RTI > The method according to claim 1, wherein the viscosity (G " ₂₅ (100 rad / sec)) and the thickness (C) G? ₂₅ ? [(5.50 + C) 1700] Pa (10). ≪ / RTI > 3. A method according to claim 1 or 2, wherein the adhesive viscosity (G _"37) at a temperature of 37 ℃ (100 ℉) Young's modulus _{(100 ℉) (G '37} ) has a, 37 ℃ at a temperature of , The following items: a) 1500 Pa to 20000 Pa range, preferably 1500 Pa to 15000 Pa range, and most preferably G _'37 (1 rad / sec is in the range of 3000 Pa to 10000 Pa in); b) G " ₃₇ (1 rad / sec) in the range of 100 Pa to 15000 Pa, preferably in the range of 100 Pa to 10000 Pa, most preferably in the range of 300 Pa to 5000 Pa; and c) 1 to 30 G _'37 in the range of (1 rad / sec) / G "37 (1 disposable human excreta treatment device (10) for being selected to have a ratio of the rad / sec). 4. A composition according to any one of claims 1 to 3, wherein the adhesive (20) comprises a polymer forming a three-dimensional matrix and comprises less than 10% by weight, preferably less than 5% by weight, of the hydrocolloid Wherein the pressure-sensitive adhesive is a substantially water-insoluble pressure-sensitive adhesive. The disposable human body waste disposal apparatus according to claim 4, characterized in that the adhesive (20) comprises a polymer selected from acrylic resin, sulfonate polymer, vinyl alcohol, vinylpyrrolidine, polyethylene oxide or mixtures thereof 10). 5. The disposable human body waste disposal apparatus (10) according to claim 4, wherein the adhesive (20) further comprises a plasticizer. The disposable human body excreta treatment apparatus (10) according to claim 6, wherein the plasticizer is selected from polyhydric alcohol, polyethylene glycol, sorbitol, water or a mixture thereof. 5. The disposable human body waste disposal apparatus (10) according to claim 4, wherein the adhesive (20) is a hydrophilic or hydrophilic-hydrophobic mixed adhesive. 9. A disposable human body waste disposal apparatus (10) according to any one of claims 1 to 8, characterized in that the wearer contact surface (23) of the flange (12) comprises at least one non- . 10. The disposable human body waste disposal apparatus (10) according to any one of claims 1 to 9, characterized in that the adhesive (20) is provided as a continuous layer. 11. A disposable human body waste disposal apparatus (10) according to any one of claims 1 to 10, wherein the adhesive (20) is applied to the wearer contact surface by slot coating. 12. The apparatus (10) according to any one of claims 1 to 11, characterized in that the bag (11) has a substantially truncated conical shape. The use of the disposable human body waste disposal apparatus (10) according to any one of claims 1 to 12 in combination with the disposable diaper (50). The disposable diaper 50 is first placed between the buttocks of the wearer, and then the disposable diaper 50 is placed on the feces processing apparatus 10 to be fixed in the conventional manner around the wearer's waist Use of the device (10) according to claim 13.