JP2002535060A - Perforated sheet material - Google Patents

Abstract

  (57) [Summary] The present invention relates to a sheet of substance (1), preferably a wet wipe used for surface wiping in homes and factories, as well as its use on baby skin and makeup removers. The wet wipe is provided in an improved perforated configuration (20) that is easy for the consumer to see and that allows the wet wipes to be easily separated from one another without compromising strength.

Description

DETAILED DESCRIPTION OF THE INVENTION

TECHNICAL FIELD The present invention relates to a sheet material, preferably a wet wipe, that provides an improved perforated shape that is easy for the consumer to see and that allows the wet wipes to be easily separated from one another without compromising strength.

BACKGROUND OF THE INVENTION Wet wipes are typically pre-moistened disposable mini towels that can be utilized for a variety of applications, both domestic and industrial, and that can perform a variety of functions.
Wet wipes are typically used to wipe living and inanimate surfaces and can provide a number of benefits, such as cleaning, cleaning, disinfection and skin care benefits. One particular application is the use of wet wipes to wipe parts of the human body, especially when wash water is not available, for example during travel. Wipes are commonly used for human cleansing and wiping, such as face and hand cleansing, and for anal, perineal, and genital cleansing, such as female wet wipes It is a direct sanitary wipe. Wet wipes can also be used for application of substances to the body, including makeup, skin conditioners and drug removal and application. Another use for wipes is in the treatment of adult and infant dermatitis caused by diaper and incontinence device use, in part during diaper changes. In addition, wet wipes can be used to clean and / or clean other surfaces or surfaces such as kitchen and bathroom surfaces, glasses, shoes, and other surfaces that require cleaning in the industry,
It is also applicable, for example, for the application of the composition to a machine or motor vehicle surface. Wet wipes also include articles used for cleaning or grooming pets.

[0003] Wet wipes are commonly derived from combinations of synthetic and natural fibers, such as polyolefins, viscose fibers and cotton fibers, which are commonly moistened with aqueous compositions containing, inter alia, surfactants, preservatives, oils and fragrances. Is built on. In that case, the wet wipes are typically provided in a folded, stacked configuration within a coated container, such as a tab-like container having a lid. Alternatively, the wipe may be provided in a tub having a dispensing opening. In both cases, this allows for easy transport and storage of the wipe. Typically, the wipe is packaged in a plastic foil to protect the wet wipe before use.

It is highly desirable to provide a wipe with perforations to assist in dispensing and to allow the consumer to select the desired size of the wipe. The use of perforations is well known in the paper, tissue and towel art. For example, U.S. Pat. No. 5,704,566 discloses a roll paper towel dispensed from a dispenser that can be separated into towel segments by pulling along a perforation tear line. The perforation tear line includes a plurality of slits that are longer than the center towards the side edges of the paper to aid in dispensing. Similarly, DE 27 06 234 discloses the use of a perforated line of variable holes formed in a paper sheet whose diameter increases towards the edge of the paper in order to facilitate the tearing of the paper with one hand.

[0005] The use of perforations for wet wipes is particularly beneficial not only for dispensing, but also for allowing consumers to select the length or amount of wet wipe material needed to perform a particular cleaning activity. is there. Thus, for a small and easy cleaning operation, just one wipe may be selected, while for a large and very dirty cleaning operation, multiple wipes may be used. It is therefore important not only that the consumer can easily dispense the required wipe size, but it is equally important that the perforations are strong enough so that the perforations do not break or tear in the larger wipe during the cleaning process. . This problem of piercing strength is further exacerbated during storage of wet wipes, which are generally found to weaken piercing. Yet another important factor for the convenient use of such wipes is that the location of the perforations in the wipe support can be easily ascertained by the consumer. Perforation visibility is
In connection with the length of the perforations or slits in the support, the larger the perforations or slits, the more easily recognized by the consumer. However, a problem with such larger perforations is that the strength of the perforations is reduced, which, as mentioned above, is highly undesirable. This problem is exacerbated by certain dispensing methods. For example, a method that produces a continuous dispense through a container opening where mechanical friction is used to dispense and separate the wipe.

[0006] It is therefore desirable to provide a wet wipe stack shape that is durable, flexible, absorbable, and suitable for a number of applications such as infant wipes and hard surface cleaning wipes that provide improved cleaning. . Further, while providing sufficient strength that the perforations in the wipe do not tear or break during use, they are easily visible and easy to allow the consumer to select the desired length of wipe required. It is desirable to provide a wet wipe wherein the wipe support is provided with a perforated tear line that can separate the wipes from each other.

SUMMARY OF THE INVENTION [0007] The present invention therefore relates to a sheet material, preferably a wet wipe, for cleaning parts of the human body, such as baby wipes, and other inanimate surfaces. In particular, the invention relates to a sheet material (such as a wet wipe) comprising at least one transverse perforation line (20), said perforation line (20) having at least one repeating perforation pattern (21).
1) wherein each of said repeating patterns (21) has at least one first perforated slit (22), at least one second perforated slit (23) and at least two coupling regions (24) Wherein the length ratio of one of the first perforated slits (22) to one of the second perforated slits (23) is 100: 1 to 1
1.5: 1 and the ratio of the total length of the coupling region (24) of the perforation line to the total length of the first (22) and second (23) perforation slits is 1: 1 to 1: 6. Sheet material.

DETAILED DESCRIPTION OF THE INVENTION Description of the Drawings (FIG. 1a) is a plan view of a sheet material, such as a wet wipe, showing perforation lines of the present invention. (FIG. 1b) is a cross-sectional view of the sheet material of FIG. 1 including a perforation line according to the present invention. FIG. 2 is a partial plan view of a sheet of material having a preferred perforation line of the present invention.

According to the invention, the sheet material is preferably coated or impregnated with a liquid composition.
Support. Sheet material can be woven or non-woven, foam, sponge, stuffed
Cotton, ball, puff, film or tissue paper, most preferably non-woven
Consisting of natural or synthetic fibers or mixtures thereof. Preferably,
The composition of the fibers may include a hydrophilic fiber material, such as viscose, cotton or flax, and loose fibers.
Aqueous fibrous materials such as polyethylene tetraphthalate (PET) or polypropylene
10% to 90% hydrophilic substance and 90% to 10% hydrophobic by weight of pyrene (PP)
It is a mixture of active substances. Particularly preferred compositions are 50% viscose, 50% PP
And 50% viscose, 50% PET, and 70% cellulose, 15
% PET and 15% latex. The sheet material is preferably at least
20gm^-2And preferably 150 gm^-2Has a base weight of less than
, Most preferably a basis weight of 20 gm^-2~ 100gm^-2, More preferably 50 gm ^-2 ~ 95gm^-2Range. The sheet material has any thickness. Typically
If the sheet material is manufactured by the air laying method, the average sheet material thickness is 1
. It is less than 0 mm. More preferably, the average thickness of the sheet material is between 0.1 mm and 0 mm.
. 9 mm. Sheet material thickness is based on standard EDANA nonwovens industry law, reference method # 30
. 4-89.

[0010] In addition to the fibers used to make the sheet material, the sheet material can have other components or materials added thereto known in the art. The type of additive desired depends on the particular end use of the intended support. For example, in wet wipe products, such as moist toilet paper, paper towels, facial tissues, baby wipes and other similar air-laid products, high wet strength is a desirable attribute. Accordingly, it is often desirable to add chemicals known in the art as wet strength resins, especially for cellulose-based materials. A general paper on the types of wet strength resins used in the paper industry can be found in TAPPI monogr.
aph series No. 29, Wet Strength in Paper and Paperboad, Technical Associ
ation of the Pulp and Paper Industry (New York, 1965). Particularly preferred resins are polyamide epichlorohydrin, polyacrylamide, styrene-butylene latex, dialdehyde starch and mixtures thereof. In addition to wet strength additives, it may also be desirable to include certain dry strength and lint control additives known in the art, such as starch binders. In addition, the substance may also contain an agent that improves the optical characteristics of the substance, such as an opacifier, such as titanium dioxide.

[0011] According to the present invention, the sheet material may be manufactured by any method known in the art. For example, a nonwoven material support can be formed by a dry molding method, such as air laying or wet laying, for example, on a paper machine. Other nonwoven manufacturing techniques,
For example, melt blowing, spunbonding, needle punching and spunlaced methods can also be used. A preferred method is air laying. According to the present invention, the sheet material is provided in a stacked form, which may include multiple sheets. Typically, the stack is 3-150, more preferably 5-100,
Most preferably, 10 to 60 sheet materials are included. Further, the sheet may be provided in any shape, folded or unfolded. Most preferably, the wipes are stacked in a folded configuration. In an alternative embodiment, the sheet material is provided as a roll, which comprises a continuous material providing individual sheets connected end-to-end by perforation lines according to the present invention. The invention is described below with reference to a preferred embodiment of the invention, namely a wet wipe. However, the description is equally applicable to alternative sheet materials and shapes.

The folded wipes 1 each extend longitudinally in the machine direction from a first leading edge 2 to a second trailing edge 3. The folded web also has a first leading edge 2 to a second trailing edge 3
Have side edges 4 and 5 extending longitudinally. Each of the folded wipes 1 has a leading edge 2
And a first panel fold 6 which is generally parallel to the side edges 4,5. The first panel fold 6 is spaced longitudinally from the leading edge 2 to provide a leading edge panel 9 extending between the first panel fold 6 and the leading edge 2.
As used herein, a panel is a portion of a wipe that extends between two folds or between a fold and an edge. The folded wipe has a second panel fold 7 as well as a first central panel 8
And a trailing edge panel 10. The second panel fold 7 is generally parallel to and longitudinally spaced from the first panel fold 6. The first central panel 8 is joined to the leading edge panel 9 at the first panel fold 6 and extends between the first panel fold 6 and the second panel fold 7.

The trailing edge panel 10 is joined to the first center panel 8 at a second panel fold 7. The trailing edge panel 10 extends between the second panel fold 7 and the trailing edge 3. The wipe is folded at the first panel fold 6 and the second panel fold 7 and
The leading edge panel 9, the first center panel 8 and the trailing edge panel 10 are provided in a Z-folded configuration, as best shown in FIG. In the z-folded configuration, panel 9 is adjacent to and overlies a portion of panel 8 and panel 10 is adjacent to and underneath a portion of panel 8. However, other fold shapes, such as C-fold or J-fold folds with more or less panels, are equally applicable.

[0014] In addition to the panels described herein above, the present wipes may have additional panels. In particular, the leading and / or trailing edge panels may be provided with additional folds to provide leading or trailing panel lips. Such a lip is formed by providing a leading or trailing panel with a panel lip fold adjacent to and spaced from the leading or trailing edge of the folded support to provide a panel lip fold and A lip extending between the edges is provided. The panel lip fold may be folded over the lower surface of the leading edge panel such that the leading edge is below the leading edge panel. This shape is particularly useful for promoting edge gripping. Alternatively, the leading edge panel may be folded such that the leading edge rests on the upper surface of the leading edge panel. The lip may also be located on the upper or lower surface of the trailing edge panel.

According to the invention, the overall dimensions of the support material depend on the intended use of the wipe and can be selected accordingly. In one illustrative embodiment, where the wipe may be utilized as a hard surface cleaning wipe, the folded wipes 1 each have an unfolded length of 10 cm to 40 cm, measured vertically from the leading edge 2 to the trailing edge 3. And 10
cm, but may be, but not limited to, 25 cm. Folded wipe 1
, The length of the leading edge panel 9 and the trailing edge panel 10 are between 2 cm and 7 cm
Can be In a preferred embodiment, the spacing between the first panel fold 6 and the leading edge 2 and between the second panel fold 7 and the trailing edge 3 is preferably between 3 cm and
6 cm. The spacing between the first panel fold 6 and the third panel fold 12 and between the second panel fold 7 and the tertiary panel fold 12 is preferably between 3 cm and 12 cm, more preferably between about 8 cm and 12 cm.

According to the present invention, the wet wipe comprises at least one transverse perforation line (20). The perforation lines include perforated slits or cuts that are joined by a wet support material that intervenes between each perforated slit, and is also referred to hereinafter as a bond area. Transverse perforation lines are typically provided at regular intervals. For the non-limiting example described herein above, this is between 9 cm and 20 cm, preferably between 12 cm and 16 cm. It has now been found that providing perforation lines (20) having at least one repeating pattern (21) as described herein provides a wet wipe stack with perforations that are robust and easy to see. Was done.

Thus, the perforation line (20) comprises at least one repeating pattern (21). According to a preferred embodiment of the present invention, the perforation line (20) comprises at least one repeating pattern (21). However, the perforation line (20) may include any number of repeating patterns. Each of said repeating patterns (21) comprises at least one first perforated slit (22) and at least one, preferably 1-20,
More preferably it comprises 2 to 10 second perforated slits (23). The exact number utilized can be readily selected by one skilled in the art depending on the type of material support and the intended use, given certain parameters are appropriate. The length ratio between the first (22) and second (23) perforated slits is 100: 1 to 1.5: 1, preferably 50: 1 to 2: 1, more preferably 25: 1 to 2 : 1, most preferably 1
0: 1 to 3: 1. The presence of the first slit (22), which is substantially longer than the second slit (23), provides an easy recognition means for the consumer to find the perforation line along the wipe. The perforated slits, whether first (22) or second (23), are separated from each other by a wet wipe support material. This support material is
Called binding region (24). Typically, the ratio of one length of the coupling region (24) to one length of the second perforated slit (23) is 10: 1 to 1:10, preferably 5: 1 to 1: 5. , Most preferably from 1: 2 to 1: 1. The exact number utilized can be readily selected by one of ordinary skill in the art depending on the type of support material and the intended use, provided that certain parameters are appropriate. Typically, each perforation line (20) comprises at least one repeating pattern (21), which depends on the length of the repeating pattern and the width of the wipe, at least once, preferably 1-50 times, It is more preferably repeated 5 to 25 times, most preferably 10 to 20 times.

To ensure the desired tensile strength of the wet wipe, the total length of the bonding area (24) along the perforation line (20) versus the total length of the first (22) and second (23) perforation slits Is 1: 1 to 1: 6, preferably 1: 1.5 to 1: 4, more preferably 1
: 2-1: 3.5 was identified. Typically, the ratio of the width of the wipe to the length of the total bonding area (24) along the perforation line (20) is between 10: 1 and 1:10, preferably between 5: 1 and 3: 1. With respect to the non-limiting example wet wipes described herein above, the length of each first perforated slit (22) is between 3 mm and 10 mm, preferably between 3 mm and 8 mm, more preferably between 3.5 mm and 6. 5 mm. The length of each second perforated slit (23) is between 0.5 mm and 2.5 mm, preferably between 1 mm and 2 mm. The length of each coupling region (24) is 0.5 mm to 10 mm, preferably 0.5 mm to 3 mm, more preferably 0.5 mm to 1.5 mm.

In order to provide the desired tensile strength, the perforation line for materials within 24 hours of manufacture is preferably at least 0. 0, as described in the EDANA 30 test method.
7 N / inch (0.28 N / cm) to 5 N / inch (1.97 / cm), more preferably 1 N / inch (0.39 N / cm) to 4.5 N / inch (1.77 N / cm).
/ Cm), most preferably 1.8 N / inch (0.70 N / cm) to 4.0 N / cm.
It should show a tensile strength of inches (1.57 N / cm). According to the invention, the support material of the wipe is typically impregnated or coated with a liquid composition. The composition may be aqueous, alcohol-based or emulsion,
It may be a water-in-oil or oil-in-water or multiple emulsion. Preferably, the emulsion is an oil-in-water emulsion.

Typically, the composition contains 2% to 50% of the active substance by weight of the composition and 50% to 98% of water, preferably deionized or distilled water. Of the active constituents, preferably 2% to 20% are present in the oily phase and the balance is present in the aqueous phase. Liquid compositions, when released, can provide a number of different benefits. For example, in a wet-like cleaning wipe for perianal cleaning, the water component is released, thereby providing a primary cleaning action for these wipes.

In a preferred embodiment of the invention, the liquid composition (preferably containing water as a main component) comprises an antimicrobial compound, preferably an essential oil or its active substance, and a bleach, preferably a peroxygen bleach. Includes disinfecting components that it includes. Disinfecting wipes containing such liquid compositions provide effective disinfecting performance to the surface while being safe for the surface being treated. By "effective disinfecting performance" is meant herein that the disinfecting wipe of the present invention allows for a significant reduction in the amount of bacteria on the infected surface. Indeed, effective disinfection is possible for a variety of microorganisms, including Gram-positive bacteria, eg, Staphylococcus aureus, and Gram-negative bacteria, eg, Pseudomonas aeruginosa, present on infected surfaces, and for more resistant microorganisms, eg, fungi (eg, Candida albicans )can get.

Another advantage of the infectious wipes of the present invention is that, in addition to the disinfecting properties delivered, good disinfection is also provided because the disinfecting polar phase may further comprise surfactants and / or solvents. is there. The essential component of such a disinfecting liquid composition is an antimicrobial compound typically selected from the group consisting of essential oils and their actives, parabens (eg, methylparaben, ethylparaben), glutaraldehyde and mixtures thereof. Essential oils or actives thereof are the preferred antimicrobial compounds used herein.

[0023] Suitable essential oils or active substances thereof as used herein are essential oils which exhibit antibacterial activity, in particular antibacterial activity. By "active substance of an essential oil" is meant herein any component of an essential oil that exhibits antibacterial / antibacterial activity. A further advantage of the said essential oils and their active substances is that they impart a pleasant scent to the disinfecting wipes of the present invention without the need to add perfume. In fact, the disinfecting wipes of the present invention deliver good odor as well as excellent disinfecting performance on infected surfaces.

[0024] Such essential oils include thyme, lemongrass, citrus, lemon, orange, anise, clove, anise seed, cinnamon, fuurosou, rose, mint, lavender, kouyugaya, eucalyptus, peppermint, camphor, sandalwood and himalaya Examples include, but are not limited to, those obtained from cedar and mixtures thereof. Actives of essential oils as used herein include thymol (eg, present in thyme), eugenol (eg, present in cinnamon and cloves), menthol (eg, present in mint), geraniol (eg, fuerosou and rose ), Velbenone (e.g., present in black pine), eucalyptol and pinocone (e.g., present in eucalyptus), cedrol (e.g., present in cedar), anethole (e.g., present in anise), carvacrol,
Examples include, but are not limited to, hinokitiol, berberine, terpineol, limonene, methyl salicylate, and mixtures thereof. Preferred actives of the essential oils used herein are thymol, eugenol, verbenone, eucalyptol, carvacrol, limonene and / or geraniol. Thymol is commercially available, for example, from Aldrich, and eugenol is, for example, Sig
ma, commercially available from Systems-Bioindustries (SBI) -Manheimer Inc. Typically, the antimicrobial compound or mixture thereof is 0.001% by weight of the liquid composition.
% To 5%, preferably 0.001% to 3%, more preferably 0.005% to 1%.
% In the liquid composition.

An important element of the internal disinfection polar phase is the bleach or a mixture thereof. Any bleach known to those of skill in the art, including any chlorine bleach, as well as any peroxygen bleach, is suitable for use herein. The presence of a bleach, preferably a peroxygen bleach, in the disinfecting wipe of the present invention contributes to the disinfecting properties of the wipe. Suitable chlorine bleaches for use herein include any compound that can release chlorine when contacted with water. Suitable chlorine bleaches include alkali metal dichloroisocyanurates and alkali metal hypohalites, such as hypochlorite and / or hypobromite. The preferred chlorine bleach is alkali metal hypochlorite. Various forms of alkali metal hypochlorite are commercially available, such as sodium hypochlorite.

Preferred bleaches for use herein are peroxygen bleaches, especially hydrogen peroxide or a water-soluble source thereof, or mixtures thereof. Hydrogen peroxide is particularly preferred. Peroxygen bleaches, such as hydrogen peroxide, are preferred herein because they are generally well tolerated from an environmental point of view. For example, the decomposition products of hydrogen peroxide are oxygen and water. As used herein, a hydrogen peroxide source refers to any compound that produces perhydroxyl ions when contacted with water. Suitable aqueous sources of hydrogen peroxide for use herein include percarbonates, persilicates, persulfates such as monopersulfate, perborate, peroxyacid,
Examples include diperoxide decanedioic acid (DPDA), magnesium perphthalic acid, dialkyl peroxides, diacyl peroxides, performed percarboxylic acids, organic and inorganic peroxides and / or hydroperoxides and mixtures thereof.

[0027] Typically, the bleach or mixture thereof will comprise from 0.001% to the weight of the liquid composition.
15%, preferably 0.001% to 5%, more preferably 0.005% to 2%
Exist at the level of. The liquid composition may further include a detersive surfactant or a mixture thereof. Typically, the surfactant or mixture thereof comprises from 0.001% to 4% by weight of the total internal polar phase.
It is present at 0%, preferably 0.01-10%, more preferably 0.05% -2%. Suitable detersive surfactants for use in the present invention include any surfactant known to those skilled in the art, such as non-ionic, anionic, cationic, amphoteric and / or zwitterionic surfactants. No. Preferred detersive surfactants used herein are amphoteric and / or zwitterionic surfactants.

Suitable amphoteric surfactants for use herein include those of the formula R ¹ R ² R ³ NO (
Wherein R ¹ , R ² and R ³ are each independently a saturated, substituted or unsubstituted linear or branched hydrocarbon chain having 1 to 30 carbon atoms).
Preferred amine oxide surfactants used according to the present invention are of the formula R ¹ R ² R ³ N
O (wherein, R ¹ has 1 to 30 carbon atoms, preferably 6 to 20, more preferably 8 to
16, most preferably 8 to 12 hydrocarbon chains, and R ² and R ³ are independently substituted or unsubstituted linear or branched C 1-4 carbon atoms, preferably 1-3. A hydrogen chain, more preferably a methyl group). R ¹ can be a saturated, substituted or unsubstituted, linear or branched hydrocarbon chain.
Suitable amine oxides for use herein are, for example, natural blend C ₈ -C _{1 0} amine oxide, as well as amine oxides of C ₁₂ -C _16, commercially available from Hoechst. Amine oxides are preferred herein because they deliver effective cleaning performance and are further involved in the disinfecting properties of the disinfecting wipes herein.

[0029] Suitable zwitterionic surfactants for use herein contain both cationic and anionic hydrophilic groups on the same molecule at a relatively wide range of pHs. A typical cationic group is a quaternary ammonium group, but other positively charged groups such as phosphonium, imidazolinium and sulfonium groups may be used. Typical anionic hydrophilic groups are carboxylate and sulfonate, but other groups such as sulfate, phosphonate and the like may be used. The general formula for several zwitterionic surfactants used herein are shown ^{below: R 1 -N + (R 2} ) (R 3) R 4 X - ( wherein, R ¹ is a hydrophobic R ² and R ³ are each a C ₁ -C ₄ alkyl, hydroxyalkyl or other substituted alkyl group which together can form a ring structure with N, wherein R ⁴ is a cationic nitrogen atom And a moiety which forms a hydrophilic group together with, typically, an alkylene, hydroxyalkylene or polyalkoxy group having 1 to 10 carbon atoms, and X is a hydrophilic group, preferably a carboxylate or sulfonate group. Is). Preferred hydrophobic groups R ¹ are alkyl groups having 1 to 24 carbon atoms, preferably less than 18, and more preferably less than 16 carbon atoms. Hydrophobic groups include unsaturated and / or substituents and / or linking groups, such as aryl groups,
It may contain an amide group, an ester group and the like. In general, simple alkyl groups are preferred for cost and stability reasons.

Highly preferred zwitterionic surfactants include betaine and sulfobetaine surfactants, their derivatives or mixtures thereof. The aforementioned betaine or sulfobetaine surfactants are preferred herein because they increase the permeability of the bacterial cell wall, thereby helping disinfect by allowing other active ingredients to enter the cells. In addition, because of the low-irritant action profile of the aforementioned betaine or sulfobetaine surfactants, they are particularly suitable for cleaning delicate surfaces, for example hard surfaces in contact with food and / or infants. Betaine and sulfobetaine surfactants are also very mild to the skin and / or surface to be treated.

[0031] Suitable betaine and sulfobetaine surfactants for use herein include:
Betaine / sulfobetaine and betaine-like detergents in which the molecule forms an internal salt that provides both cationic and anionic hydrophilic groups to the molecule over a wide range of pH values. Contains both acidic and acidic groups. Some common examples of these detergents are described in U.S. Pat. Nos. 2,082,275, 2,702.
, 279 and 2,255,082, the contents of which are incorporated herein by reference. Preferred betaines and sulfobetaines surfactants herein have the formula:

[0032]

Embedded image

(Wherein R ¹ has 1 to 24 carbon atoms, preferably 8 to 18, more preferably 12 carbon atoms)
, R ² and R ³ are a hydrocarbon chain having 1 to ³ carbon atoms, preferably 1 carbon atom, and n is an integer of 1 to 10, preferably 1 to 6, and more preferably 1, Y is selected from the group consisting of carboxyl and sulfonyl groups;
And the total carbon number of the R ¹ , R ² and R ³ hydrocarbon chains is 14 to 24) or a mixture thereof. Examples of particularly suitable betaine surfactants include alkyl dimethyl betaines C ₁₂ -C _18, for example coconut - alkyl dimethyl betaine betaine and C ₁₀ -C _16, for example, lauryl betaine. Coconut betaine is Amonil 2
It is commercially available from Seppic under the trade name 65 (TM). Lauryl betaine is commercially available from Albright & Wilson under the trade name Empigen BB / L ™.

Other specific zwitterionic surfactants have the general formula: R¹-C (O) -N (R^Two)-(C (R^Three)_Two)_n-N (R^Two)_Two ⁽⁺⁾-(C (R^Three)_Two)_n-SO_Three ^(-) Or R¹-C (O) -N (R^Two)-(C (R^Three)_Two)_n-N (R^Two)_Two ⁽⁺⁾-(C (R^Three)_Two)_n-COO^(-) (Where R¹Each have up to 8-20 carbon atoms, preferably up to 18, more preferably
Up to 16 hydrocarbons, for example alkyl groups,^TwoIs hydrogen (amide
Short-chain alkyl or substituted alkyl having 1 to 4 carbon atoms,
Preferably methyl, ethyl, propyl, hydroxy-substituted ethyl or propyl,
And a group selected from the group consisting of
R^ThreeAre each selected from the group consisting of hydrogen and a hydroxy group, and n is each
1-4, preferably 2-3, and more preferably 3, any (C (R ^Three )_Two) Moiety has no more than one hydroxy group). R¹The groups can be branched and / or unsaturated. R^TwoThe groups are connected to a ring
A structure can be formed. This type of surfactant is referred to as "Barion CAS Sulfobetaine
C available from Sherex Company under the trade name "Trademark"_Ten~ C₁₄Fat reed
Luamidopropylene- (hydroxypropylene) sulfobetaine.

[0035] Suitable non-ionic surfactants for use herein are fatty alcohol ethoxylates and / or propoxylates that are commercially available at various fatty alcohol chain lengths and various degrees of ethoxylation. In fact, the HLB value of such alkoxylated nonionic surfactants depends essentially on the chain length of the fatty alcohol, the nature of the alkoxylation and the degree of alkoxylation. A surfactant catalog is available that lists a number of surfactants, including non-ionics, along with their respective HLB values. Particularly suitable herein as non-ionic surfactants are hydrophobic non-ionic surfactants having an HLB (hydrophilic-lipophilic equilibrium) of less than 16, more preferably less than 15. These hydrophobic nonionic surfactants have been found to provide good grease cutting properties.

Preferred nonionic surfactants for use herein are those of the formula RO- (C ₂
During _{H 4 O) n (C 3} H 6 O) m H ( wherein, R is an alkyl chain or benzene chain of C ₆ -C _{2 8} of C ₆ ~C _22, n + m is 0 to 20, And n is 0-15
M is 0-20, preferably n + m is 1-15, and n and m are 0.5-15, more preferably n + m is 1-10, n
And m is from 0 to 10). Preferred R chains for use herein are alkyl chains of C ₈ -C _22. Accordingly, suitable hydrophobic nonionic surfactants for use herein are Dovanol R9
1-2.5 (HLB = 8.1; R is a mixture of C ₉ -C ₁₁ alkyl chains, n
Is 2.5 and m is 0), or Lutensol R TO3 (HLB = 8
R is a C ₁₃ alkyl chain, n is 3 and m is 0), or rutensol R AO3 (HLB = 8; R is a mixture of C ₁₃ and C ₁₅ alkyl chains; n is 3 and m is 0), or Tergitol R 25L3 (HLB
= 7.7; R is in the range of C ₁₂ and C ₁₅ alkyl chain lengths, n is 3, m
Is 0), Dobanol R23-3 (HLB = 8.1; R is a mixture of alkyl chains of C ₁₂ and C _13, n is 3, m is 0), Dobanol R23
-2 (HLB = 6.2; R is a mixture of alkyl chains of C ₁₂ and C _13, n is 2, m is 0), or Dobanol R45-7 (HLB = 11.6;
R is a mixture of C ₁₄ and C ₁₅ alkyl chains, n is 7 and m is 0), or dovanol R23-6.5 (HLB = 11.9; R is C ₁₂ and C ₁₃ a mixture of alkyl chains, n is 6.5, m is 0), or Dobanol R25-7 (HLB = 12; R is a mixture of alkyl chains of C ₁₂ and C _15, n represents 7 And m is 0) or dovanol R91-5 (HLB =
11.6; R is a mixture of C ₉ and C ₁₁ alkyl chains, n is 5, m
Is 0), or dovanol R91-6 (HLB = 12.5; R is a mixture of C ₉ and C ₁₁ alkyl chains, n is 6 and m is 0), or donovanol R91-6. 8 (HLB = 13.7; R is a mixture of C ₉ and C ₁₁ alkyl chains, n is 8 and m is 0), or dovanol R91-10 (
HLB = 14.2; R is a mixture of C ₉ and C ₁₁ alkyl chains and n is 10
And m is 0) or a mixture thereof. Preferred herein are Dovanol R91-2.5 or Lutensol R TO3 or Lutensol R AO3 or Tergitol R 25L3 or Dovanol R23-3 or Dovanol R23-2 or Dovanol R23-10 or mixtures thereof. Dovanol® surfactant is commercially available from SHELL. Lutensol R surfactant is commercially available from BASF, and Tergitol R surfactant is commercially available from UNION CARBIDE.

Suitable anionic surfactants used herein include those of the formula ROSO_Three
M wherein R is preferably C₆~ C_{twenty four}A hydrocarbyl, preferably C₈~ C ₂₀ Alkyl or hydroxyalkyl having an alkyl component of
Or C₈~ C₁₈And M is H
Or a cation, such as an alkali metal cation (eg, sodium, potassium
, Lithium), or ammonium or substituted ammonium (eg, methyl
-, Dimethyl- and trimethylammonium cations, and quaternary ammonium
Cations such as tetramethyl-ammonium and dimethylpiperidini
Cations, as well as alkylamines such as ethylamine, diethylamine
Quaternary ammonium cations obtained from, for example, triethylamine and mixtures thereof.
Water-soluble salts or acids).

[0038] Other suitable anionic surfactants for use herein include alkyl-diphenyl-ether-sulfonates and alkyl-carboxylates. Other anionic surfactants include salts of soaps (e.g., sodium, potassium, ammonium and substituted ammonium salts, e.g., mono-,
Di- and triethanolamine salts), C ₉ -C ₂₀ linear alkylbenzene sulfonates, C ₈ -C ₂₂ primary or secondary alkane sulfonates, C ₈ -C ₂₂
C olefin sulfonate _24, for example, British Patent sulfonated polycarboxylic acids prepared by sulfonation of an alkaline earth metal citrates pyrrole product as described in No. 1,082,179, C ₈ -C ₂₄ alkyl polyglycol ether sulfates (containing up to 10 moles of ethylene oxide): alkyl ester sulfonates such as C ₁₄ -C ₁₆ methyl ester sulfonates, acyl glycerol sulfonates, fatty oleyl glycerol sulfates,
Alkylphenol ethylene oxide ether sulfates, paraffin sulfonates, alkyl phosphates, isethionates such as acyl isethionates, N-acyl taurates, alkyl succinates and sulfosuccinates,
Sulfosulfuron monoesters of succinate (especially monoesters of saturated and unsaturated C ₁₂ ~C _18), diesters of sulfosuccinate (especially saturated and unsaturated C ₆ -C ₁₄
Disulfates), acyl sarcosinates, sulfates of alkyl polysaccharides, such as sulfates of alkyl polyglucosides (nonionic non-sulfated compounds are described below), branched primary alkyl sulfates, alkyl polyethoxycarboxylates Rate, for example of the formula RO (CH ₂ CH ₂ O) _k CH ₂ COO ⁻ M ⁺ , where R is C ₈
Alkyl of -C _22, k is an integer of 0, and M include those of a soluble salt-forming cation). Resin acids and hydrogenated resin acids such as rosin, hydrogenated rosin, and resin acids and hydrogenated resin acids present in or obtained from tall oil are also suitable. A further example is “Surface Active Agents
and Detergents "(Vol. I and II by Schwartz, Perry and Berch). Various such surfactants are also disclosed in U.S. Pat. No. 3,929,678 (Laughl).
in et al., issued December 30, 1975, column 23, line 58 to column 29, line 23, which is hereby incorporated by reference. Preferred anionic surfactants for use herein are alkyl benzene sulfonates, alkyl sulfonates, alkyl alkoxylated sulfates, paraffin sulfonates and mixtures thereof.

The internal disinfection polar phase of the present invention has a pH of 1 to 12, preferably 1.5 to 10, more preferably 2 to 9. pH can be adjusted by using an alkalizing agent or an acidifying agent. Examples of alkalizing agents are alkali metal hydroxides, for example potassium and / or sodium hydroxide, or alkali metal oxides, for example sodium and / or potassium oxide. Examples of acidifying agents are organic or inorganic acids, such as citric acid or sulfuric acid.

[0040] Solvents may be present in the liquid compositions of the present invention. These solvents advantageously provide cleaning enhancement to the disinfecting wipes of the present invention. Suitable solvents for incorporation herein include propylene glycol derivatives such as n-butoxypropanol or n-butoxypropoxypropanol, a water-soluble CARBITOL solvent, or a water-soluble CELLOSOLVE solvent. Water-soluble CARBITOL solvents are compounds of the class 2- (2-alkoxyethoxy) ethanol where the alkyl group is derived from ethyl, propyl or butyl. A preferred water-soluble carbitol is 2- (2-butoxyethoxy) ethanol, also known as butyl carbitol. The water-soluble CELLOSOLVE solvent is a compound of the type 2-alkoxyethoxyethanol, with 2-butoxyethoxyethanol being preferred.
Other suitable solvents are benzyl alcohol, methanol, ethanol, isopropyl alcohol and diols such as 2-ethyl-1,3-hexanediol and 2,2,4-trimethyl-1,3-pentanediol and mixtures thereof. is there. Preferred solvents for use herein are n-butoxypropoxypropanol, butyl carbitol and mixtures thereof. The most preferred solvent for use herein is butyl carbitol.

The liquid composition may contain other optional ingredients, such as radical scavengers, chelating agents, thickeners, builders, buffers, stabilizers, bleach activators, soil sedimentation inhibitors, transfer agents, brighteners. , A dustproofing agent, an enzyme, a dispersant, a dye transfer inhibitor, a pigment, a fragrance and a dye.

Suitable radical scavengers for use herein include the well-known substituted mono- and dihydroxybenzenes and their derivatives, alkyl- and arylcarboxylates and mixtures thereof. Preferred radical scavengers for use herein include di-tert-butylhydroxytoluene (BHT), p-hydroxy-toluene, hydroquinone (H
Q), di-tert-butylhydroquinone (DTBHQ), mono-tert-butylhydroquinone (MTBHQ), tert-butyl-hydroxyanisole,
p-hydroxy-anisole, benzoic acid, 2,5-dihydroxybenzoic acid, 2,
5-dihydroxyterephthalic acid, toluic acid, catechol, t-butylcatechol, 4-allyl-catechol, 4-acetylcatechol, 2-methoxy-phenol, 2-ethoxy-phenol, 2-methoxy-4- (2-propenyl) Phenol, 3,4-dihydroxybenzaldehyde, 2,3-dihydroxybenzaldehyde, benzylamine, 1,1,3-tris (2-methyl-4-hydroxy-5-tert-butylphenyl) butane, tert-butyl-hydroxy- Examples include aniline, p-hydroxyaniline, and n-propyl-gallate. Highly preferred for use herein is di-tert-butylhydroxytoluene, which is available, for example, under the trade name Ionol CP ™ from SHELL.
It is commercially available from. Typically, the radical scavenger or mixture thereof is a liquid composition at a level of up to 5% by weight, preferably at a level of 0.001% to 3% by weight, more preferably at a level of 0.001% to 1.5% by weight. Present in things.

Suitable chelators for use herein are any chelators known to those skilled in the art, such as phosphonate chelators, aminocarboxylate chelators or other carboxylate chelators, Alternatively, it may be selected from the group consisting of polyfunctionally substituted aromatic chelators and mixtures thereof. Such phosphonate chelating agents include etidronic acid (1-hydroxyethylidene-bisphosphonic acid or HEDP) and aminophosphonate compounds such as aminoalkylene poly (alkylene phosphonate), alkali metal ethane 1-hydroxydiphosphonate, nitrilotrimethylene phosphonate, Ethylenediaminetetramethylenephosphonate and diethylenetriaminepentamethylenephosphonate may be mentioned. The phosphonate compounds may exist in their acid form or as salts of different cations on some or all of their acid functions. The preferred phosphonate chelator used herein is diethylenetriaminepentamethylenephosphonate. Such phosphonate chelators are commercially available from Monsanto under the trade name DEQUEST.

[0044] Polyfunctionally substituted aromatic chelators may also be useful herein (eg,
See U.S. Pat. No. 3,812,044 (Connor et al., Issued May 21, 1974). Preferred compounds of this type in the acid form are dihydroxydisulfobenzenes, such as 1
, 2-dihydroxy-3,5-disulfobenzene. Preferred biodegradable chelating agents for use herein are ethylenediamine N, N'-disuccinic acid, or an alkali or alkaline earth metal thereof,
Ammonium or substituted ammonium salts, or mixtures thereof. Ethylenediamine N, N′-disuccinic acid, especially the (S, S) isomer, is disclosed in US Pat.
No. 704,233 (Hartman and Perkins, Nov. 3, 1987). Ethylenediamine N, N'-disuccinic acid is commercially available, for example, from Palmer Research Laboratories under the trade name ssEDDS.

Suitable aminocarboxylate chelators useful herein include ethylenediaminetetraacetate, diethylenetriaminepentaacetate, diethylenetriamine in their acid form or in the form of alkali metal, ammonium and substituted ammonium salts. Examples include pentaacetate (DTPA), N-hydroxyethylethylenediaminetriacetate, nitrilotriacetate, ethylenediaminetetrapropionate, triethylenetetraaminehexaacetate, ethanoldiglycine, propylenediaminetetraacetic acid (PDTA) and methylglycinediacetic acid (MGDA). Can be Particularly suitable for use herein are diethylenetriaminepentaacetic acid (DTPA), such as propylenediaminetetraacetic acid (PDTA) commercially available from BASF under the trade name Trilon FS
, And methylglycine diacetate (MGDA). Still other carboxylate chelating agents used herein include:
Includes malonic acid, salicylic acid, glycine, aspartic acid, glutamic acid, dipicolinic acid and derivatives thereof and mixtures thereof. Typically, the chelating agent or mixture thereof comprises from 0.001% to 5%, preferably from 0.001% to 3%, more preferably from 0.001% to 1.5% by weight. Present in the liquid composition at a level of.

The disinfecting wipes of the present invention can be used on a variety of surfaces, such as biological surfaces (eg, human skin),
Also suitable for disinfecting inanimate surfaces, for example any hard surfaces. Other water-soluble or water-dispersible substances that may be present in the liquid composition include thickeners and viscosity modifiers. Suitable thickeners and viscosity modifiers include polyacrylic and hydrophobically modified polyacrylic resins such as carbopol and pemulene, starches such as corn starch, potato starch, tapioca, gums such as guar gum, gum arabic And cellulose ethers such as hydroxypropylcellulose, hydroxyethylcellulose and carboxymethylcellulose. These thickeners and viscosity modifiers are typically included in concentrations ranging from 0.05 to about 0.5% of the liquid composition.

Further, when water is the main component of the liquid composition, water-soluble or water-dispersible substances that may be present in the internal phase include polycations that provide steric stabilization at the polar-liquid phase interface. And nonionic polymers that stabilize the emulsion. Suitable polycationic polymers include Reten 201, Kimen ™ 557H and Akko 711. Suitable non-ionic polymers include polyethylene glycol (PEG) such as carbowax and poly (propylene glycol) butyl ether. These polycationic and non-ionic polymers are typically included at concentrations ranging from about 0.05% to about 1.0% of the liquid composition.

According to the present invention, for wet wipe applications specifically intended for use on human skin, such as baby wipes, the composition may be aqueous, alcohol-based or emulsion, water-in-oil or oil-in-water. Emulsions, or multiple emulsions, preferably the emulsion is an oil-in-water emulsion. Typically, the composition contains from 2% to 50% of the active substance by weight of the composition, and from 50% to 98% water, preferably deionized or distilled water. Those with active components are preferably present in the oil phase at 2% to 20%, the remainder being in the aqueous phase.

According to the present invention, the wet wipe may comprise from 1% to 20%, preferably 2%, by weight of the composition.
An emulsion composition is provided that includes an oil phase in the range of 10% to 10%. Advantageously,
The oil-based phase may be obtained from a natural source, such as a vegetable or animal oil, or may be synthetic, or any mixture thereof. Suitable vegetable and animal oils for use herein include waxes, such as beeswax, lanolin, candelilla, and oils, such as glycerin esters and ethers, fatty alcohols, fatty acid esters and fatty acid ethers, such as caprylic acid, capric acid Triglycerides, as well as octyl palmitate. Suitable mineral oils include petroleum based oils such as paraffin and petroleum jelly. Synthetic oils for use herein include ethylene-based polymers such as polyethylene wax or silicone-based oils. Suitable silicone oils include:
Polydimethylsiloxane, volatile cyclomethicone, dimethiconol, siloxysilicate, and amino- and phenyl derivatives of siloxane, and mixtures thereof. Examples include dimethicone (Dow Corning 200 Flui
ds), cyclomethicone and dimethiconol (Dow Corning 1401 Fluid), cetyl dimethicone (Dow Corning 2502 Fluid), dimethicone and trimethylsiloxysilicate (Dow Corning 593 Fluid), cyclomethicone (Dow Corni
ng 244, 245, 344 or 345 Fluid), phenyltrimethicone (Dow Corning 5
56 Fluid) or a combination thereof.

Oil-in-water emulsions typically require an emulsifier. The emulsifier that can be used in the present invention is preferably capable of primary emulsification of an oil-in-water emulsion. The emulsifier is present in the range from 0.02% to 5.0%, preferably from 0.02% to 3.0% by weight of the composition. In a preferred embodiment, emulsifier, polymer emulsifiers, for example alkyl acrylates of C ₁₀ -C _30, 1, one or more acrylic acid, monomer methacrylic acid or allyl ethers or pentaerythritol allyl ether of sucrose, And copolymers with one of their simple esters cross-linked. Thus, emulsifiers useful in the present invention include Ceteareth-12, Ceteareth-20 or Pemulen TR1 and TR2, which are BF Goodric of the United States.
Available from Company h. However, other known emulsifiers, such as ethoxylated fatty alcohols, glycerin esters of fatty acids, soaps, sugar-derived agents, are also suitable for use herein. Other useful emulsifiers include EP-A-
328355 include those disclosed in detail.

According to the present invention, the composition may contain stabilizers or preservatives. Suitable stabilizers for use herein include phenoxyethanol, sodium benzoate, potassium sorbate, methylparaben, propylparaben, ethylparaben, butylparaben, preferably present in the range of 0.1-1.0%. Examples include sodium benzoate, potassium sorbate, benzalkonium chloride, and the disodium salt ethylenediaminetetraacetic acid (hereinafter referred to as EDTA) or other EDTA salts (sequestering agents). Sequestrants are a range of complexing agents, as well as metal complexes of ethylenediaminetetraacetic acid and salts. The total amount of stabilizer should range from 0.1% to 4.0% by weight of the composition. The composition of the present invention may further contain an emollient or humectant by 0.02% to 0.5% by weight of the composition. Preferably, the emollient is water-soluble, examples include, for example, polyhydric alcohols such as propylene glycol, glycerin, and also water-soluble lanolin derivatives.

When preparing a wet wipe product according to the present invention, the composition is applied to at least one surface of a support material. The composition may be applied at any time during the manufacture of the wet wipe. Preferably, the composition can be applied to the support after the support has been dried. Any of a variety of methods for uniformly distributing the lubricating material having a molten or liquid consistency can be used. Suitable methods include spraying, where the composition is forced through a tube in contact with a support, but the support passes across the tube, printing (eg, flexographic printing), coating (eg, gravure coating). Or sink application)
Extrusion or a combination of these application techniques. For example, when the composition is sprayed on a rotating surface, for example a calender roll, the composition is then transported to the surface of the support. The composition may be applied to one or both surfaces of the support, preferably to both surfaces. The preferred method of application is extrusion coating.

The composition may further be applied uniformly or non-uniformly to the surface of the support. Non-uniform means that, for example, the amount and distribution pattern of the composition can vary on the surface of the support. For example, certain surfaces of the support may have more or less of the composition. For example, some of the surfaces have no composition thereon. Preferably, however, the composition is applied uniformly to the surface of the wipe. The composition is typically applied in an amount of about 0.5 g to 10 g per gram of support, preferably 1.0 g to 5 g, most preferably 2 g to 4 g per gram of dry support.

Preferably, the composition may be applied to the support at any point after it has been dried. For example, the composition may be applied before calendering or after calendering and before being wound on a parent roll. Typically, the application is performed on an unwound support having a width equal to the substantial number of wipes intended to be manufactured. The support having the composition applied thereto is then perforated using standard techniques to create the desired perforation line.

Example 1 A) Carrier Preparation The carrier is an airlaid nonwoven support containing 70% pulp, 15% PET and 15% latex. The support has a basis weight of 73 g / m ² . B) Preparation of liquid composition A liquid composition is prepared from the components shown in Table 1.

[0056]

[Table 1]

To formulate the composition, all components are mixed together and mixed at 140 ° F. (
45.8 ° C). C) Applying the liquid composition to the carrier The liquid composition prepared in step B is applied to the carrier by spraying. 1 g of support material
3.25 g of lotion are applied to the carrier. Next, the coated carriers are perforated, folded and stacked. Next, the stack is sealed to produce the final product wipe. Example

[0058]

[Table 2]

[Brief description of the drawings]

FIG. 1a is a plan view of a sheet material, such as a wet wipe, showing perforation lines of the present invention.

FIG. 1b is a cross-sectional view of the sheet material of FIG. 1 including a perforation line according to the present invention.

FIG. 2 is a partial plan view of a sheet of material having a preferred perforation line of the present invention.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 sheet material 2 first leading edge 3 second trailing edge 4 side edge 5 side edge 6 panel fold 7 panel fold 8 center panel 9 leading edge panel 10 trailing edge panel 20 perforated line 21 repeating pattern 22 perforated slit 23 perforated Slit 24 coupling area

──────────────────────────────────────────────────続 き Continuation of front page (81) Designated country EP (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE ), OA (BF, BJ, CF, CG, CI, CM, GA, GN, GW, ML, MR, NE, SN, TD, TG), AP (GH, GM, KE, LS, MW, SD, SL, SZ, TZ, UG, ZW), EA (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM), AE, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, CA, CH, CN, CR, CU, CZ, DE, DK, DM, EE, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID , IL, IN, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, NO, (72) Invention of NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TR, TT, UA, UG, US, UZ, VN, YU, ZA, ZW Pitchini, Andrea Italy, 00151 Rome, Vu, Les, Dei, Colli, Portuzien 10 (72) Inventor Pucci, Maurizio Italy, 00168 Rome, Via, Pascare, Seconds 232 (72) Inventor Syrianni, Giuseppe Italy, 00655 Rome, Esse, Maria, Alle, Fornaci 8/7 F-term (reference) 2D034 AB00 CC02

Claims (10)

[Claims] 1. A piercing line (2) comprising at least one transverse piercing line (20).
0) is a sheet material (1) having at least one first repeating pattern (21)
Wherein each of said repeating patterns (21) has at least one first perforated slit (22), at least one second perforated slit (23) and at least two coupling regions (24). And the first perforated slit (2
2) the ratio of the length of the second perforated slit (23) to the length of the perforated line (20) along the perforation line (20) is from 100: 1 to 1.5: 1, and Sheet material (1) wherein the ratio of the total length of the first (22) and second (23) perforated portions is 1: 1 to 1: 6. 2. The sheet material according to claim 1, wherein the length ratio of the first perforated slit (22) to the second perforated slit (23) is 50: 1 to 2: 1.
1). 3. The ratio of the total coupling area (24) along the perforation line (20) to the total length of the perforation slit is from 1: 1.5 to 1: 4. 2. The sheet material (1) according to item 1. 4. The length of the first perforated slit (22) is 3 mm to 10 mm.
The length of the second perforated slit (23) is 0.5 mm to 2.5 mm, and the length of the coupling region (24) is 0.5 mm to 10 mm. A sheet material (1) according to any one of the preceding claims. 5. The length of said first perforated slit (22) is between 3 mm and 8 mm, the length of said second perforated slit (23) is between 1 mm and 2 mm, and said coupling area (24). The sheet material (1) according to any one of claims 1 to 4, wherein the length of the sheet material is 0.5 mm to 3 mm. 6. Sheet material (1) according to any of the preceding claims, wherein the perforated line (20) has a tensile strength of between 0.7 N / inch and 5 N / inch. 7. The sheet material (1) according to claim 6, wherein the perforated line (20) has a tensile strength between 1 N / inch and 4.5 N / inch. 8. The repeating pattern (21) comprises at least one of the first perforation sites (22), at least four of the second perforation sites (23) and at least five of the connection regions (24). Sheet material (1) according to any of the preceding claims. 9. The sheet material (1) according to claim 1, wherein the material is an air-laid nonwoven fabric containing hydrophilic and hydrophobic fibers. 10. The sheet material (1) according to any of the preceding claims, wherein the sheet comprises from 0.5g to 10g of liquid composition per gram of material.