Soft treated tissue having improved hand protection

Abstract

The multi-ply tissue products are treated on one or more of their outer surfaces with a softening composition comprising a polysiloxane and a wetting-agent, such as a non-ionic surfactant. The amount of polysiloxane, which is preferably hydrophobic, and wetting-agent in the softening composition are such that composition provides the tissue product with a surprisingly balance of hand protection, in the form of relatively slow liquid strike-through, and good softens. The strike-through time may be measured using the Hercules Size Test (HST) and softness may be measured using the tissue softness analyzer (TSA). In certain instances, the tissue products may have a HST value from about 15 seconds to about 35 seconds and a TS7 value less than about 10.0. Generally, the foregoing physical properties are achieved by treating the tissue products with a softening compositing comprising at least 8 wt % wetting agent.

Description

BACKGROUND

[0001] In the manufacture of tissue products, including facial and bathroom tissues, the industry has applied considerable efforts to improve the tactile characteristics to meet the consumer's desire for “soft” tissues. There are two primary methods for improving the softness of tissues via chemical additives. First, there are chemicals softening agents that can be added to the furnish prior to the forming process to reduce the basesheet stiffness and / or deliver improved surface feel characteristics. Second, there are chemistries that can be applied to the tissue surface after the sheet has been formed to provide improved surface feel.

[0002] However, in addition to softness, another desirable attribute for both facial and bathroom tissue is the ability to keep the hand protected during use. Therefore, since both softness and hand protection are key consumer benefits for consumer tissue products, there is a need for a single chemistry system that can deliver both attributes.SUMMARY

[0003] It has now been discovered that the liquid repellency of a silicone treated tissue product, generally referred to as wet-through and measured using the Hercules size test (HST), may be controlled by altering the amount of welling agent in the silicone emulsion. This is important because it enables rapid, fine tuning of wet-through properties and expands the number of potentially useful silicones to include silicones that may previously have been too hydrophobic. For example, by increasing the wetting agent concentration in a silicone emulsion from 4 wt % to 8 wt % the HST may be decreased from 135 seconds to 35 seconds. Surprisingly, the improvement in wet-through does not come at the expense of handfeel. Thus, treated tissue products of the present invention protect the user's hands from becoming wet during normal use and, at the same time, have a soft handfeel. The combination of softness and liquid repellency provided by the inventive treated tissue products is unique and beneficial to consumers.

[0004] Thus, in certain embodiments, the desired balance between hand protection and softness can be achieved by altering the amount of wetting agent in the softening composition in the range from about 2 wt % to 20 wt %, more preferably from about 6 wt % to 12 wt % and still more preferably from about 8 wt % to 10 wt %. Generally, within this range the hydrophobicity of the tissue may be controlled such that the tissue product has a HST (Hercules Size Test, measured as described in the Test Methods section below) of less than about 60 seconds, such as from about 10 seconds to about 60 seconds, such as from about 15 seconds to about 40 seconds and more preferably from about 20 seconds to about 35 seconds. At the same time the softness of the tissue product may be maintained such that the tissue has a TS7 Value (measured as described in the Test Methods section below) less than about 10, such as a TS7 value ranging from about 7.50 to about 10.00, such as from about 8.00 to about 9.00. Generally, a lower TS7 Value is indicative of a softer feeling tissue.

[0005] Hence, in one embodiment, the present invention provides a soft tissue product having two or more treated tissue plies, the tissue product having a geometric mean tensile (GMT) ranging from about 800 to about 1,000 g / 3″, and HST ranging from about from about 10 seconds to about 40 seconds and TS7 value less than about 10.0, such as from about 7.50 to about 9.00. The foregoing tissue product provides good in-use strength, has as soft handfeel and keeps the user's hands protected from liquids during use.

[0006] In another embodiment the present invention provides a surface treated tissue product having two or more plies and two outwardly facing surfaces topically treated with softening composition comprising at least one polysiloxane and a welling agent wherein the wetting agent comprises at least about 8 wt % of the softening composition, such as from about 8 wt % to 15 wt %, more preferably from about 8 wt % to 12 wt % and still more preferably from about 8 wt % to about 10 wt %. The foregoing surface tissue product preferably has a GMT ranging from about 800 to about 1,000 g / 3″, and HST ranging from about from about 10 seconds to about 40 seconds and TS7 value from about 7.50 to about 10.0.

[0007] In certain embodiments the softening composition comprises a polysiloxane having the general formula:wherein the R1-R8 moieties can be independently any organofunctional group including C1 or higher alkyl groups, ethers, polyethers, polyesters, amines, imines, amides, or other functional groups including the alkyl and alkenyl analogues of Such groups and y is an integer >1. Preferably the R1-R8 moieties are independently any C1 or higher alkyl group including mixtures of said alkyl groups. The polysiloxane is preferably mixed with a wetting agent and water to provide silicone oil-in-water emulsion that may be topically applied to a tissue product. In certain preferred embodiments the wetting agent comprises one or more nonionic surfactants and the weight percentage of the wetting agent in the silicone oil-in-water emulsion is at least about 2 wt %, more preferably at least about 4 wt % and still more preferably at least about 8 wt %.In another embodiment the present invention provides a method of making soft, controlled absorbency multi-ply tissue product comprising: a) forming an aqueous suspension of papermaking fibers; b) depositing the aqueous fiber suspension onto a forming fabric to form a web; c) drying the web to form a tissue sheet; d) combining the tissue sheet with one or more like tissue sheets to form a multi-ply tissue basesheet having two outer surfaces; and (e) topically treating both outer surfaces of the tissue surface with an aqueous emulsion comprising 8 wt % to 10 wt % welling agent and a polysiloxane to form a tissue product, the tissue product having a GMT ranging from about 800 to about 1,000 g / 3″, and HST ranging from about from about 10 seconds to about 40 seconds and TS7 value from about 7.50 to about 10.0.Definitions

[0009] As used herein, the term “tissue product” refers to products made from tissue webs and includes, bath tissues, facial tissues, paper towels, industrial wipers, foodservice wipers, napkins, medical pads, and other similar products. Tissue products may comprise one, two, three or more plies.

[0010] As used herein, the terms “tissue web” and “tissue sheet” refer to a fibrous sheet material suitable for forming a tissue product.

[0011] As used herein, the term “ply” generally refers to a discrete product element. Individual plies may be arranged in juxtaposition to each other. The term may refer to a plurality of web-like components in facing arrangement with one another such as in a multi-ply facial tissue, bath tissue, paper towel, wipe, or napkin.

[0012] As used here, the term “HST” generally refers to the Hercules Size test value of a treated tissue prepared according to the present invention, measured as set forth in the Test Methods section below. Generally, the treated tissue products of the present invention have a HST values of less than about t 60 seconds, such as from about 10 seconds to about 60 seconds, such as from about 15 seconds to about 40 seconds and more preferably from about 20 seconds to about 35 seconds.

[0013] As used herein the term “basis weight” generally refers to the conditioned weight per unit area of a tissue and is generally expressed as grams per square meter (gsm). Basis weight is measured as described in the Test Methods section below. While the basis weights of tissue products prepared according to the present invention may vary, in certain embodiments the products have a per ply basis weight (product basis weight divided by the total number of product plies) from about 10 to about 45 gsm, such as from about 12 to about 42 gsm, such as from about 14 to about 40 gsm. The tissue products may have a basis weight greater than about 20 gsm, such as greater than about 30 gsm, such as greater than about 40 gsm, such as from about 20 to about 80 gsm, such as from about 30 to about 60 gsm, such as from about 45 to about 55 gsm.

[0014] As used herein, the term “caliper” refers to the thickness of a tissue product, web, sheet, or ply, typically having units of microns (μm) and is measured as described in the Test Methods section below. Tissue products prepared according to the present invention may have a caliper of at least about 200 microns.

[0015] As used herein, the term “sheet bulk” refers to the quotient of the caliper (μm) divided by the bone-dry basis weight (gsm). The resulting sheet bulk is expressed in cubic centimeters per gram (cc / g). Tissue products prepared according to the present invention may, in certain embodiments, have a sheet bulk greater than about 5.0 cc / g, more preferably greater than about 6.0 cc / g, and still more preferably greater than about 8.0 cc / g.

[0016] As used herein, the term “Slope” refers to the slope of the line resulting from plotting tensile versus stretch and is an output of the MTS TestWorks™ in the course of measure tensile properties as described in the Test Methods section herein. Slope is reported in the units of grams (g) per unit of sample width (inches) and is measured as the gradient of the least-squares line fitted to the load-corrected strain points falling between a specimen-generated force of 70 to 157 grams (0.687 to 1.540 N) divided by the specimen width.

[0017] As used herein, the term “geometric mean slope” (GM Slope) generally refers to the square root of the product of machine direction slope and cross-machine direction slope. While the GM Slope may vary amongst tissue products prepared according to the present disclosure, in certain embodiments, tissue products may have a GM Slope less than about 18.00 kg, more preferably less than about 16.00 kg and still more preferably less than about 14.00 kg, such as from about 10.0 to about 18.0 kg, such as from about 12.0 to about 16.0 kg.

[0018] As used herein, the term “geometric mean tensile” (GMT) refers to the square root of the product of the machine direction tensile strength and the cross-machine direction tensile strength of the web. The GMT of tissue products prepared according to the present invention may vary, however, in certain instances the GMT may be about 800 g / 3″ or greater, such as about 900 g / 3″ or greater, such as about 1,000 g / 3″ or greater, such as from about 800 g / 3″ to about 1,250 g / 3″, such as form about 800 g / 3″ to about 1,000 g / 3″.

[0019] As used herein, the term “Stiffness Index” refers to the quotient of the geometric mean tensile slope, defined as the square root of the product of the MD and CD slopes (having units of kg), divided by the geometric mean tensile strength (having units of grams per three inches).Stiffness⁢ Index=MD⁢ Tensile⁢ Slope⁢ (kg)×CD⁢ Tensile⁢ Slope⁢ (kg)GMT⁢ (g / 3″)×1<semantics definitionURL="">,<annotation encoding="Mathematica">TagBox[",", "NumberComma", Rule[SyntaxForm, "0"]]< / annotation>< / semantics>000While the Stiffness Index of tissue products prepared according to the present disclosure may vary, in certain instances the Stiffness Index may be less than about 20.0, such as less than about 18.0, such as less than about 16.0, such as from about 12.0 to about 20.0, such as from about 12.0 to about 18.0, such as from about 12.0 to about 16.0.As used herein, the term “TS7” generally refers to the softness of a tissue product surface measured using an EMTEC Tissue Softness Analyzer (“EMTEC TSA”) (EMTEC Electronic GmbH, Leipzig, Germany) interfaced with a computer running EMTEC TSA software (version 3.19 or equivalent). The units of the TS7 are dB V2 rms, however, TS7 values are often referred to herein without reference to units. Generally, the TS7 is the magnitude of the peak occurring at a frequency between 6 and 7 kHz which is produced by vibration of the tissue product during the test procedure. Generally, a peak in this frequency range having a lower amplitude, and hence a lower TS7 value, is indicative of a softer tissue product. In certain instances, multi-ply treated tissue products prepared according to the present invention may have a TS7 value of about 10.00 or less, more preferably 9.50 or less, more preferably 9.00 or less, such as from about 7.50 to about 10.0, such as from about 8.00 to about 9.00.DETAILED DESCRIPTION

[0021] In general, the present invention is directed to a tissue product, particularly a tissue product comprising multiple plies, such as two, three, or four plies where one or more of the plies have been treated with a softening composition comprising a polysiloxane and a wetting agent, wherein the amount of wetting agent, based upon the total neat weight of the softening composition ranges from about 8.0 wt % to about 10.0 wt %. The tissue products generally offer good hand protection, such as a HST of less than about 60 seconds, such as from about 10 seconds to about 60 seconds, such as from about 15 seconds to about 40 seconds and more preferably from about 20 seconds to about 35 seconds yet are both soft and sufficiently strong to withstand use.

[0022] While tissue products of this invention can have two, three, four or more plies, in certain embodiments it may be preferable to form the product from three tissue plies. Three plies may be preferred because the two outer plies can each have their outwardly facing surface treated with a softening compositing comprising one more polysiloxanes and a wetting agent in accordance with this invention. The resulting three-ply product has two soft, liquid repellent outer surfaces and an inner absorbent ply. This allows liquid to not only be absorbed by the inner ply, but also to be entrapped in the space between the plies, which further reduces the likelihood of the user experiencing wet through of the tissue during use.

[0023] Accordingly, in certain embodiments the invention provides a three-ply treated tissue product comprising three superposed tissue plies—two outer plies and one inner ply, the inner ply being located between two the two outer plies. The outer plies form the two outer most surfaces of the product which may be brought into contact with a user's skin in-use. To maximize the softness of the user contact surface, as well as the absorption of liquid wiped from the user the outer plies are generally treated with a softening composition such that much of the softening composition is disposed outer surface of the two outer plies.

[0024] Regardless of the number of plies used to form the tissue products, they are sufficiently strong to withstand use. In certain embodiments the tissue products may have a geometric mean tensile (GMT) strength of about 800 g / 3″ or greater, such as about 900 g / 3″ or greater, such as about 1,000 g / 3″ or greater, such as from about 800 g / 3″ to about 1,250 g / 3″. In certain embodiments it may be preferable for the tissue product to comprise three plies and have a GMT ranging from about 800 g / 3″ to about 1,000 g / 3″.

[0025] While the tissue products are sufficiently strong to withstand use, they also have good handfeel and a sufficiently soft so as not irritate a user's skin in-use. Accordingly, in certain embodiments, at the foregoing tensile strengths, the inventive tissue products may have a TS7 value (as measured using a Tissue Softness Analyzer as set forth in the Test Methods section, where a lower value is indicative of a softer feel) of about 10.00 or less, more preferably 9.50 or less, more preferably 9.00 or less, such as from about 7.50 to about 10.0, such as from about 8.00 to about 9.00.

[0026] The tissue products may be produced at a range of basis weights, such as from about 20 to about 80 gsm, such as from about 30 to about 60 gsm, such as from about 45 to about 55 gsm. In certain instances, the inventive tissue products may also be produced at relatively high basis weights, such as per-ply basis weights of about 14.0 grams per square meter (gsm) or greater, such as about 14.25 gsm or greater, such as about 14.50 gsm or greater, such as from about 14.0 to about 16.0 gsm per-ply, such as from about 14.0 to about 15.0 gsm per-ply.

[0027] In certain embodiments the tissue products may comprise three plies and have a basis weight of about 42.0 gsm or greater, such as about 42.5 gsm or greater, such as about 43.0 gsm or greater, such as from about 42.0 to about 46.0 gsm, such as from about 42.0 to about 45.0 gsm, such as from about 42.0 to about 44.0 gsm.

[0028] In certain instances, in certain embodiments, the tissue product may be treated with a softening composition without overly stiffening the product. For example, the inventive tissue products may comprise three plies, where each of the plies is a creped, wet-pressed tissue ply, and the two outer-most plies are treated with a softening composition according to the present invention and have a Stiffness Index of about 20.0 or less. In other instances, the products may have a Stiffness Index of about 20.0 or less, such as about 18.0 or less, such as about 16.0 or less, such as from about 10.0 to about 20.0, more preferably from about 12.0 to about 16.0.

[0029] In other instances, the inventive tissue products may have a Stiffness Index of about 20.0 or less, such as about 18.0 or less, such as about 16.0 or less, such as from about 10.0 to about 20.0, more preferably from about 12.0 to about 16.0 and a geometric mean slope (GM Slope) less than about 18.00 kg, more preferably less than about 16.00 kg and still more preferably less than about 14.00 kg, such as from about 10.0 to about 18.0 kg, such as from about 12.0 to about 16.0 kg.

[0030] The decrease in stiffness may also be accompanied by a commensurate improvement in softness, such as the products having a Stiffness Index of about 20.0 or less, such as about 18.0 or less, such as about 16.0 or less, such as from about 10.0 to about 20.0, more preferably from about 12.0 to about 16.0, and a TS7 value of about 10.00 or less, more preferably 9.50 or less, more preferably 9.00 or less, such as from about 7.50 to about 10.0, such as from about 8.00 to about 9.00.

[0031] Further, the foregoing tensile, stiffness and softness may be balanced with good hand protection such that the inventive tissue products have a HST value of less than about t 60 seconds, such as from about 10 seconds to about 60 seconds, such as from about 15 seconds to about 40 seconds and more preferably from about 20 seconds to about 35 seconds.

[0032] In other embodiments tissue products made according to the present disclosure may possess a desirable water absorption rate, such as wet out times that facilitate the absorption of liquids, such as nasal discharge, while balancing hand protection. The inventive tissue products may have a Wet-Out time ranging from about 10 to about 30 seconds (measured as described below in the Test Methods section). By contrast the Wet-Out times of untreated facial tissue products may be about 6 seconds or less. Accordingly, in certain embodiments the inventive tissue products may a HST value of less than about 60 seconds, such as from about 10 seconds to about 40 seconds, such as from about 15 seconds to about 35 seconds and more preferably from about 20 seconds to about 30 seconds and a Wet-Out Time from about 10 to about 30 seconds, such as from about 10 to about 25 seconds.

[0033] Tissue webs, also referred to herein as basesheets, useful in forming tissue products according to the present invention may be manufactured using a variety of wet-laid papermaking processes known in the art. For example, a papermaking process of the present disclosure can utilize wet-pressing, air pressing, through-air drying, creped through-air drying, uncreped through-air drying, as well as other steps in forming the tissue web. Examples of papermaking processes and techniques useful in forming tissue webs according to the present invention include, for example, those disclosed in U.S. Pat. Nos. 5,048,589, 5,399,412, 5,129,988 and 5,494,554, all of which are incorporated herein in a manner consistent with the present disclosure. In one embodiment the tissue web is wet-laid, through-air dried and uncreped.

[0034] In general, any process capable of forming a tissue web may be utilized in the present invention. For example, an endless traveling forming fabric, suitably supported, and driven by rolls, receives the layered papermaking stock issuing from the headbox. Once retained on the fabric, the layered fiber suspension passes water through the fabric. Water removal is achieved by combinations of gravity, centrifugal force and vacuum suction depending on the forming configuration. Forming multi-layered paper webs is also described and disclosed in U.S. Pat. No. 5,129,988, which is incorporated herein by reference in a manner that is consistent herewith.

[0035] In certain preferred embodiments the tissue products of the present invention comprise one or more tissue plies, where an individual tissue ply comprises multiple layers of fiber furnish using manufacturing techniques well-known in the art, such as stratified headbox. Layered webs produced by any means known in the art, however, are within the scope of the present invention, including those disclosed in U.S. Pat. No. 5,494,554, which is incorporated herein by reference in a manner consistent with the present disclosure.

[0036] Multilayered webs may be formed using a headbox designed to form a multilayered stratified pulp furnish and may comprise dividers that that separate the papermaking furnish into three fiber stock layers. Each of the fiber layers comprises a dilute aqueous suspension of papermaking fibers, which may differ amongst the layers. For example, the middle layer may contain softwood kraft fibers either alone or in combination with other fibers. The outer layers, on the other hand, many contain short, low coarseness cellulosic fibers, such as hardwood kraft pulp fibers and more preferably Eucalyptus kraft pulp fibers.

[0037] Preferably the formed web is dried by transfer to the surface of a rotatable heated dryer drum, such as a Yankee dryer. In accordance with the present invention, the creping composition may be applied topically to the tissue web while the web is traveling on the fabric or may be applied to the surface of the dryer drum for transfer onto one side of the tissue web. In this manner, the creping composition is used to adhere the tissue web to the dryer drum. In this embodiment, as the web is carried through a portion of the rotational path of the dryer surface, heat is imparted to the web causing most of the moisture contained within the web to be evaporated. The web is then removed from the dryer drum by a creping blade. Creping the web, as it is formed, further reduces internal bonding within the web and increases softness. Applying the creping composition to the web during creping, on the other hand, may increase the strength of the web.

[0038] In another embodiment the formed web may be transferred to the surface of the rotatable heated dryer drum, which may be a Yankee dryer, with the aid of a pressure roll. The pressure roll may comprise a suction pressure roll. To adhere the web to the surface of the dryer drum, a creping adhesive may be applied to the surface of the dryer drum by a spraying device. The web is adhered to the surface of the dryer drum and then creped from the drum using the creping blade. If desired, the dryer drum may be associated with a hood. The hood may be used to force air against or through the web.

[0039] In certain preferred embodiments tissue products are prepared from webs that have been creped using conventional creping compositions. Not only may the tissue products be prepared using conventional creping compositions, but the desirable physical properties may also be achieved without the use of surface modifiers, such as thermoplastic resins and more particularly the non-fibrous olefin polymers disclosed in U.S. Pat. No. 7,807,023. The use of thermoplastic resins as components of the creping composition typically increases the cost of manufacture, introduces manufacturing complexities, and may compromise one or more important physical properties such as rate of absorbency. Thus, in particularly preferred embodiments, the tissue products of the present invention are manufactured by partially dewatering the tissue web with a press felt and then pressing the partially dewatered web onto a dryer surface. Preferably the dryer surface is treated with a conventional creping composition comprising an adhesive and a release agent.

[0040] Regardless of the method of manufacturing the basesheet, the creped, dried basesheet is post-treated with a softening composition to achieve the desired balance of softness and absorbency. Generally, the foregoing treatments are applied to at least one outer surface of the tissue web after the web has been finally dried and creped, i.e., post-treated. Post treatment may be performed using any one of a number of well-known methods including, for example, by printing, spraying, coating, or the like.

[0041] The softening composition generally comprises one or more of polysiloxane, one or more wetting agents and optionally glycerin, a formulation aid or skin beneficial agent (hereinafter referred to as “actives”). Hence in one aspect, the present invention provides a tissue product comprising a topically applied softening composition, the softening composition comprising from about 1 to about 40 wt %, more specifically from about 10 to about 40 wt %, more specifically from about 20 to about 40 wt % and still more specifically from about 30 to about 40 wt % polysiloxane.

[0042] The softening composition is preferably prepared as a silicone-in-water emulsion that is formed with the aid of a wetting agent. The wetting agent not only aids in the formation of the emulsion, but it may also improve the liquid absorption of the treated tissue product. Thus, in certain embodiments it may be preferable that the softening composition comprise from about 2 wt % to 20 wt % wetting agent, more preferably from about 6 wt % to 12 wt % and still more preferably from about 8 wt % to 10 wt % wetting agent.

[0043] In addition to a polysiloxane and a wetting agent, the softening composition may comprise other actives such as glycerin, a formulation aid or skin beneficial agent. For example, the softening composition may comprise from about 0 to about 80 wt % glycerin. In other embodiments the softening composition may comprise from 0 to about 10 wt % formulation aids and / or skin beneficial agents.

[0044] Generally, the softening composition may comprise one or more polysiloxanes. Polysiloxane treated tissue sheets are described in U.S. Pat. No. 4,950,545 issued to Waller et al. on Aug. 21, 1990; U.S. Pat. No. 5,227,242 issued to Walter et al. on Jul. 13, 1993; U.S. Pat. No. 5,558,873 issued to Funk et al. on Sep. 24, 1996; U.S. Pat. No. 6,054,020 issued to Goulet et al. on Apr. 25, 2000; and in U.S. Pat. No. 6,231,719 issued to Garvey et al. on Apr. 25, 2000, the disclosures of which are incorporated herein in a manner consistent with the present inventions, Polysiloxanes encompass a very broad class of compounds generally characterized in having a backbone structure:wherein R′ and R″ may be a broad range of organo and non-organo groups including mixtures of such groups and where n is an integer≥2.The scope of the present invention should not be construed as limited by a particular polysiloxane structure, so long as that polysiloxane structure delivers the necessary tissue product benefits to the tissue web and / or the final tissue product. The term “polydialkylsiloxanes” as used herein refers to the portion of the polysiloxane molecule as defined above wherein R′ and R″ are C1-C30 aliphatic hydrocarbon groups. In one embodiment of the present invention, R′ and R″ may be methyl groups forming so called polydimethylsiloxane units. Functionalized polysiloxanes containing polydialkylsiloxane units may be used for the purposes

[0046] In other instances, polysiloxanes useful in the present invention may have the following general formula:Wherein the R1-R8 moieties can be independently any organofunctional group including C1 or higher alkyl groups, ethers, polyethers, polyesters, amines, imines, amides, or other functional groups including the alkyl and alkenyl analogues of Such groups and y is an integer >1. Preferably the R1-R8 moieties are independently any C1 or higher alkyl group including mixtures of said alkyl groups.Polysiloxanes useful for purposes of this invention can have one or more pendant functional groups such as amine, quaternium, aldehyde, epoxy, hydroxy, alkoxyl, polyether and carboxylic acid and its derivatives, such as amides and esters.

[0048] To further optimize and balance the softness, hand protection and absorbency benefits of the polysiloxane treatment, blends of two or more polysiloxane materials can be applied to the surface of the tissue. In one particular example, a blend of a hydrophobic amino-polysiloxane and a hydrophilic polyether-polysiloxane can be used. The ratio of the amino-polysiloxane to the polyether-polysiloxane can be from 100 percent to about 10 percent, more specifically from 100 percent to about 50 percent.

[0049] The amount of polysiloxane in the softening composition can be from about 1 to about 40 wt %, more specifically from about 10 to about 40 wt %, more specifically from about 20 to about 40 wt % and still more specifically from about 30 to about 40 wt %.

[0050] The amount of polysiloxane(s) applied to the surface of the tissue will depend on the particular polysiloxane. However, suitable add-on amounts are from about 0.1 to about 5 wt % based on the dry weight of the tissue product, more specifically from about 0.5 to about 3 wt %, and still more specifically from about 0.7 to about 2 wt %. While the polysiloxane(s) preferentially resides on the surface of the tissue to which applied, polysiloxanes inherently migrate such that even the center ply of a three-ply tissue product may contain some of the silicone material. However, such amounts are much less than the amount on the outer surface of the tissue so that the center ply remains substantially hydrophilic and can wick and absorb liquid.

[0051] In addition to one or more polysiloxanes, the softening composition comprises a wetting agent. A wetting agent generally refers to a composition that reduces the surface tension of liquids or reduces interfacial tension between two liquids or a liquid and a solid. The softening composition may comprise a single wetting agent, or a mixture of two or more wetting agents.

[0052] Preferably the wetting agent has a hydrophilic-lipophilic balance (HLB) value from 6 to 15. In certain instances, the wetting agent may comprise a fatty alcohol such as lauryl alcohol, myristyl alcohol, stearyl alcohol, behenyl alcohol, or cetyl alcohol. In other instances, the wetting agent may comprise polyoxyethylene alkylamines, trialkylamine oxides, triethanol amine fatty acid esters and partial fatty acid esters, polyoxyethylene alkyl ethers such as those obtained by ethoxylation of long chain alcohols, polyoxyethylene alkenyl ethers, alkylphenyl ethoxylates, polyoxyethylene polystyriphenyl ethers, polypropylene glycol fatty acid esters and alkyl ethers, polyethylene glycol fatty acid esters and alkyl ethers, polyhydric alcohol fatty acid partial esters and alkyl ethers, glycerin fatty acid esters, polyglycerin fatty acid esters, polyoxyethylene polyhydro alcohol fatty acid partial esters and alkyl ethers, polyoxyethylene sorbitan fatty acid esters, polyoxyethylene glycerin fatty acid esters, polyoxyethylene fatty acid esters and alkyl ethers, polyglycerin fatty acid esters, ethoxylated / propoxylated vegetable oils and the like including mixtures of the foregoing wetting agents.

[0053] In other instances, the wetting agent may comprise a nonionic surfactant selected from a fatty alcohol ethoxylate, an alkyl phenol ethoxylate, a fatty acid alkoxylate or a combination thereof. In certain preferred embodiments the welling agent comprises an alcohol ethoxylate. Suitable alcohol ethoxylates have a range of alkyl chain lengths, alkyl branching and lengths of the polyethylene glycol chain.

[0054] Commercially available nonionic surfactants useful in the softening compositions of the present invention include, for example, 9-EO ethoxylated tridecylalcohol, Ceteth-10, Ceteth-12 (12-EO ethoxylated cetyl alcohol) and Ceteth-20. More particularly, suitable commercially available fatty alkyl derivatives include Pluraface A-38, Macol CSA 20 and Macol LA 12 from BASF; Armeen 16D, Armeen 18D, Armeen HTD, Armeen 2C, Armeen M2HT, Armeen 380, Ethomeen 18 / 15 Amid 0, Witconate 90, Witconate AOK, and Witcolate C from Akzo Nobel, and Tergitol 15-S-9, Tergitol 15-S-7, Tergitol 15-S-12, Tergitol TMN-6, Tergitol TMN-10, Tergitol XH, Tergitol XDLW, and Tergitol RW-50 from Dow Chemical.

[0055] The amount of wetting agent in the softening composition may range from 2 wt % to 20 wt %, more preferably from about 6 wt % to 12 wt % and still more preferably from about 8 wt % to 10 wt %. In certain embodiments the softening composition comprises a nonionic surfactant selected from a fatty alcohol ethoxylate, an alkyl phenol ethoxylate, a fatty acid alkoxylate or a combination thereof wherein the weight percentage of surfactant ranges from 8 wt % to 15 wt %, more preferably from about 8 wt % to 12 wt % and still more preferably from about 8 wt % to 10 wt %.

[0056] The softening composition can be applied to the tissue sheet in the form of a neat blend, an aqueous solution, or an aqueous emulsion. When applied as an aqueous solution or an aqueous emulsion, the concentration of active components in the aqueous solution or aqueous emulsion can be from about 20 to about 50 wt %, such as from about 30 to about 45 wt %. Accordingly, the softening composition may be provided as an aqueous emulsion comprising from about 50 wt % to about 80 wt % water, such as from about 55 wt % to about 70 wt % water.

[0057] The amount of the softening composition actives disposed on the tissue product may be, based on the dry weight of the tissue, from about 0.2 to about 20 wt %, more specifically from about 0.2 to about 10 wt %, more specifically from about 0.5 to about 5 wt % and still more specifically from about 1 to about 3 wt %. As used herein, the term “dry” wt % in reference to a composition or tissue sheet containing a composition means that the amount of free water or other volatile components in the composition or tissue product are ignored. Stated differently, the “dry” wt % is intended to represent the amount of “active components” in the composition. Therefore, for tissue sheets, all recited dry wt % amounts refer to tissue sheets that have been aged for at least three (3) weeks and therefore have equilibrated with ambient conditions. The dry wt % amounts can be determined by chemical extraction and analysis of the extract or, if the basis weight of the tissue sheet prior to treatment is known, by subtracting the basis weight of the untreated tissue from the basis weight of the treated tissue and dividing the difference by the basis weight of the treated tissue and multiplying by 100.

[0058] In the papermaking industry, manufacturers have employed various methods to apply chemical additives, such as softening compositions and other beneficial agents, to the surface of a tissue web. Suitable methods of applying the softening composition to the surface of the tissue include spraying, printing, and coating. Gravure printing is preferred because of the control it offers with respect to the amount of softening composition added to the tissue surface. Another method of applying the softening composition to the surface of a tissue web is spray atomization. Other suitable methods of applying the softening composition to the surface of a tissue webs are set forth in U.S. Pat. No. 7,396,593 the contents of which are incorporated herein in a manner consistent with the present disclosure.

[0059] One particularly preferred method of applying a softening composition to the surface of a tissue web is the rotogravure printing process. A rotogravure printing process utilizes printing rollers to transfer chemicals onto a substrate. Chemicals that are applied to webs using the rotogravure printing process typically require the addition of water, in combination with, surfactants, in order to prepare an emulsion capable of being applied onto the substrate using conventional technologies. Such additions are not only costly but also increase wet-out time, drying time, and add process complexity.TEST METHODSHercules Size Test (HST)

[0060] The “Hercules Size Test” (HST) is a test that generally measures how long it takes for a liquid to travel through a tissue sheet. Hercules Size Test data was collected on a TAF 310-Series HST tester (commercially available from The Aderhold Firm, Inc., Lawrenceville, GA) using white and green calibration tiles and the black disk provided by the manufacturer. A 2.5% Naphthol Green B Dye solution, diluted with distilled water to yield a 1% solution, was used as the dye.

[0061] Tests were performed generally in accordance with the recommendations of the manufacturer of the HST tester at room temperature (23±2° C.).

[0062] Six (6) tissue sheets (18 plies for a 3-ply tissue product, 12 plies for a two-ply product, 6 plies for a single ply product, etc.) form the specimen for testing. All specimens were conditioned for at least 4 hours at 23±1° C. and 50±2 percent relative humidity prior to testing. Specimens are cut to an approximate dimension of 2.5×2.5 inches (63 mm×63 mm). The specimen is placed in the sample holder with the outer surface of the plies facing outward and the machine direction of the specimen aligned parallel to the handle of the specimen holder. The specimen is then clamped into the specimen holder. The specimen holder is then positioned in the retaining ring on top of the optical housing. Using the black disk provided by the manufacturer, the instrument zero is calibrated. The percent reflectance for the desired endpoint is set to 85% using the “Reflectance Set Point” knob. The black disk is removed and 10±0.5 ml of dye solution is dispensed into the retaining ring and the timer started while placing the black disk back over the specimen. The test time in seconds (sec.) is recorded from the instrument.Wet-Out Time

[0063] The “Absorbency Rate (Wet-Out Time) Test” is used to determine the absorbency wet out time (“Wet Out Time”). To carry out the test, the test product is first equilibrated to ambient conditions for at least four hours at 23±3.0° C. and 50±5% relative humidity. Twenty (20) sheets are stacked and cut to a 60×60 mm (±3 mm) square using a device capable of cutting to the specified dimensions such as a Hudson Machinery. The square is then fixed in each corner by staples delivered by a standard, commercially available manual office stapler. The staples are placed diagonally across each corner far enough into the sheet so that the staples are completely contacting the tissue sheets, staples should not wrap the corner of the sample. The sample is then held horizontally and approximately 25 mm (1 inch) over a container containing distilled or de-ionized water at 23.0±3.0° C. The container should be of sufficient size and depth to ensure that the saturated specimen does not contact the sides, bottom of the container, and the top surface of the water at the same time. The container should contain a minimum depth of 51 mm of water to ensure complete saturation of the test specimen and this depth should be maintained throughout the testing. The specimen is then dropped flat onto the water surface and a timing device is started when the specimen contacts the water surface. As soon as the specimen is completely saturated, stop the timing device and record the absorbency wet out time in seconds.Tissue Softness Analyzer

[0064] Softness and surface smoothness were measured using an EMTEC Tissue Softness Analyzer (“TSA”) (Emtec Electronic GmbH, Leipzig, Germany). The TSA comprises a rotor with vertical blades which rotate on the tissue sample applying a defined contact pressure. The blades are pressed against the sample with a load of 100 mN and the rotational speed of the blades is two revolutions per second. Contact between the vertical blades and the tissue sample creates vibrations, which are sensed by a vibration sensor. The sensor transmits a signal to a PC for processing and display. The signal is displayed as a frequency spectrum. The frequency spectrum is analyzed by the associated TSA software to determine the amplitude of the frequency peak occurring in the range between 200 to 1000 Hz. This peak is generally referred to as the TS750 value (having units of dB V2 rms) and represents the surface smoothness of the tissue sample. A high amplitude peak correlates to a rougher surface, while a low amplitude peak correlates to a smoother surface. A further peak in the frequency range between 6 and 7 KHZ represents the softness of the sample. The peak in the frequency range between 6 and 7 KHZ is herein referred to as the TS7 value (having units of dB V2 rms). The lower the amplitude of the peak occurring between 6 and 7 kHZ, the softer the sample.

[0065] Tissue product samples were prepared by cutting a circular sample having a diameter of 112.8 mm. All samples were allowed to equilibrate at TAPPI conditions for at least 24 hours prior to completing the TSA testing. After conditioning each sample was tested as is, i.e., multi-ply products were tested without separating the sample into individual plies. The sample is secured, and the measurements are started via the PC. The PC records, processes, and stores all of the data according to standard TSA protocol. The reported TS750 and TS7 values are the average of five replicates, each one with a new sample.Basis Weight

[0066] Prior to testing, all samples are conditioned under TAPPI conditions (23±1° C. and 50±2 percent relative humidity) for a minimum of 4 hours. Basis weight of sample is measured by selecting twelve (12) products (also referred to as sheets) of the sample and making two (2) stacks of six (6) sheets. In the event the sample consists of perforated sheets of bath or towel tissue, the perforations must be aligned on the same side when stacking the usable units. A precision cutter is used to cut each stack into exactly 10.16×10.16 cm (4.0×4.0 inch) squares. The two stacks of cut squares are combined to make a basis weight pad of twelve (12) squares thick. The basis weight pad is then weighed on a top loading balance with a minimum resolution of 0.01 grams. The top loading balance must be protected from air drafts and other disturbances using a draft shield. Weights are recorded when the readings on the top loading balance become constant. The mass of the sample (grams) per unit area (square meters) is calculated and reported as the basis weight, having units of grams per square meter (gsm).Caliper

[0067] Caliper is measured in accordance with TAPPI test methods Test Method T 580 pm-12 “Thickness (caliper) of towel, tissue, napkin, and facial products.” The micrometer used for carrying out caliper measurements is an Emveco 200-A Tissue Caliper Tester (Emveco, Inc., Newberg, OR). The micrometer has a load of 2 kilopascals, a pressure foot area of 2,500 square millimeters, a pressure foot diameter of 56.42 millimeters, a dwell time of 3 seconds and a lowering rate of 0.8 millimeters per second.Tensile

[0068] Tensile testing is conducted on a tensile testing machine maintaining a constant rate of elongation and the width of each specimen tested is 3 inches. Testing is conducted under TAPPI conditions. Prior to testing samples are conditioned under TAPPI conditions (23±1° C. and 50±2 percent relative humidity) for at least 4 hours and then cutting a 3±0.05 inches (76.2±1.3 mm) wide strip in either the machine direction (MD) or cross-machine direction (CD) orientation using a JDC Precision Sample Cutter (Thwing-Albert Instrument Company, Philadelphia, PA, Model No. JDC 3-10, Serial No. 37333) or equivalent. The instrument used for measuring tensile strengths was an MTS Systems Sintech 11S, Serial No. 6233. The data acquisition software was MTS TestWorks® for Windows Ver. 3.10 (MTS Systems Corp., Research Triangle Park, NC). The load cell was selected from either a 50 Newton or 100 Newton maximum, depending on the strength of the sample being tested, such that the majority of peak load values fall between 10 to 90 percent of the load cell's full-scale value. The gauge length between jaws was 4±0.04 inches (101.6±1 mm) for facial tissue and towels and 2±0.02 inches (50.8±0.5 mm) for bath tissue. The crosshead speed was 10±0.4 inches / min (254±1 mm / min), and the break sensitivity was set at 65 percent. The sample was placed in the jaws of the instrument, centered both vertically and horizontally. The test was then started and ended when the specimen broke. The peak load was recorded as either the “MD tensile strength” or the “CD tensile strength” of the specimen depending on direction of the sample being tested. Ten representative specimens were tested for each product or sheet and the arithmetic average of all individual specimen tests was recorded as the appropriate MD or CD tensile strength having units of grams per three inches (g / 3″). Tensile energy absorbed (TEA) and slope are also calculated by the tensile tester. TEA is reported in units of g·cm / cm2 and slope is recorded in units of kilograms (kg). Both TEA and Slope are directionally dependent and thus MD and CD directions are measured independently.

[0069] Wet tensile strength measurements are measured in the same manner as described above, but the previously conditioned sample strip is saturated with distilled water immediately prior to loading the specimen into the tensile test equipment. Preferably, prior to performing a wet tensile test, the sample is aged to ensure the wet strength resin has cured. Artificial aging may be used for samples that were to be tested immediately after or within days of manufacture. For artificially aging, sample strips are heated for 4 minutes at 105±2° C. For natural aging, the samples are held at 22±2° C. and 50 percent relative humidity for a period of 12 days prior to testing.

[0070] Following aging the samples are wetted individually and tested. Sample wetting is performed by first laying a single test strip onto a piece of blotter paper (Fiber Mark, Reliance Basis 120). A pad is then used to wet the sample strip prior to testing. The pad is a green, Scotch-Brite brand (3M) general purpose commercial scrubbing pad. To prepare the pad for testing, a full-size pad is cut approximately 2.5 inches long by 4 inches wide. A piece of masking tape is wrapped around one of the 4-inch long edges. The taped side then becomes the “top” edge of the wetting pad. To wet a tensile strip, the tester holds the top edge of the pad and dips the bottom edge in approximately 0.25 inches of distilled water located in a wetting pan. After the end of the pad has been saturated with water, the pad is then taken from the wetting pan and the excess water is removed from the pad by lightly tapping the wet edge three times across a wire mesh screen. The wet edge of the pad is then gently placed across the sample, parallel to the width of the sample, in the approximate center of the sample strip. The pad is held in place for approximately one second and then removed and placed back into the wetting pan. The wet sample is then immediately inserted into the tensile grips, so the wetted area is approximately centered between the upper and lower grips. The test strip should be centered both horizontally and vertically between the grips. (It should be noted that if any of the wetted portion comes into contact with the grip faces, the specimen must be discarded, and the jaws dried off before resuming testing.) The tensile test is then performed, and the peak load recorded as the wet tensile strength of this specimen. As with the dry tensile test, MD and CD directions are measured independently and ten representative specimens were tested for each product or sheet and the arithmetic average of all individual specimen tests was recorded as the appropriate MD or CD tensile strength.

[0071] The tensile properties of the products were tested in their product forms without separating into individual plies.EXAMPLES

[0072] Samples were made using a conventional wet-pressed tissue-making process on a commercial tissue machine. The tissue products consisted of three, substantially identical tissue plies. Each individual ply consisted of three layers with machine broke and eucalyptus hardwood kraft (EHWK) making up the fabric contacting layer, Northern softwood kraft (NSWK) making up the center layer and EHWK making the dryer layer. Strength additives were added to the NSWK making up the center layer. The amount of Kymene™ 920A added to the NSWK. FennoBond™ 3000 was also added to the NSWK.

[0073] The pulp fibers from the machine chests were pumped to the headbox at a consistency of about 0.02 percent. Pulp fibers from each machine chest were sent through separate manifolds in the headbox to create a 3-layered tissue structure. The fibers were deposited onto an S-Wrap Twin Wire type of former.

[0074] The formed, wet tissue web, having a consistency of about 10 percent, was vacuum dewatered and then transferred to a Tissue Flex V3 press felt (Voith Fabric & Roll Systems Inc., Appleton, WI). The partially dewatered tissue web, supported by the press felt, was passed through the nip of a pressure roll, to increase the consistency of the web to about 40 percent. The tissue web was then adhered to the Yankee dryer, which had been treated with a creping composition by spraying the creping composition onto the dryer surface using a spray boom situated underneath the dryer.

[0075] The creping compositions generally comprised a mixture of Bubond™ 2653 (adhesive agent) and Busperse™ 2097 (release agent) (Buckman Laboratories International Inc., Memphis, TN). Creping compositions were prepared by dissolution of the solid polymers into water followed by stirring until the solution was homogeneous. Individual polymers were diluted depending on the desired spray coverage on the Yankee dryer.

[0076] The sheet was dried to about 98 percent consistency as it traveled on the Yankee dryer and to the creping blade. The Yankee dryer was heated with 105 psi of steam pressure to dry the sheet to a target sheet temperature of 230° F. before the creping blade. The Yankee dryer was traveling at about 5300 FPM, unless otherwise noted. The creping blade (75 Softcrepe™ commercially available from BTG, Eclepens, Switzerland) with a 15 degree grind angle was loaded against the dryer surface and subsequently scraped the tissue sheet off of the Yankee dryer. The crepe ratio was 1.30. The creped tissue base sheet was then wound onto a core for converting.

[0077] Individual tissue webs were plied together to form a 3-ply tissue product, which was calendered with two steel rolls and crimped to mechanically join the plies together. The calendered and crimped 3-ply tissue product was then subjected to topical treatment with a softening composition, which was applied by offset gravure printing. Various softening compositions were prepared as aqueous emulsions as described in Table 1, below.TABLE 1SiliconeWettingAmineSiliconeAgent%FormulationSilicone(meq / g)(Wt %)Wetting Agent(wt %)SolidsViscosityAWR11000.1412Nonionic Surfactant8209.72cPEWR16000.612Nonionic Surfactant82023.52cPInventiveWR11000.1436Nonionic Surfactant844104.4cP

[0078] The rotogravure printer had four rolls, in which two were electronically engraved gravure rolls engraved to 1.25 cubic billion microns per square inch. The two engraved gravure rolls were in contact with separate doctor chambers through which passed the silicone emulsion chemistry. A doctor blade scraped away the excess silicone so that only the silicone contained within the engraved cells on the gravure rolls is carried. Each of the two gravure rolls came in contact with a rubber transfer roll. The nip between each gravure roll and transfer roll pairs was maintained at approximately % inch across the web path. The two transfer rolls were set-up to a 0.003 inch gap between the two rubber transfer rolls.

[0079] The resulting 3-ply treated tissue products were subject to physical testing as described above, the results of which are summarized in Tables 2 and 3, below.TABLE 2Gravure RollBasis Wt.GMTMD SlopeGM SlopeFormulation(BCM)(gsm)(g / 3″)(kg)(kg)A1.2541.992114.9313.2E1.2541.790013.5211.9Inventive1.2541.584016.3912.4TABLE 3Gravure RollStiffnessWet-OutHSTFormulation(BCM)IndexTS7(sec.)(sec.)A1.2514.48.559.612.78E1.2513.28.715.28.64Inventive1.2514.78.2427.321.48

Claims

1. A multi-ply treated facial tissue product comprising a first, a second and a third tissue ply, wherein the first and second plies form a first and a second outer surface of the tissue product, a softening composition comprising a polysiloxane and a wetting agent disposed on the first and the second outer surfaces, wherein the tissue product has a HST value from about from about 10 seconds to about 40 seconds and TS7 less than about 10.0.

2. The multi-ply treated facial tissue product of claim 1 having a geometric mean tensile strength (GMT) of at least about 800 g / 3″ and a geometric mean slope (GM Slope) less than about 15.0 kg.

3. The multi-ply treated facial tissue product of claim 1 having a GMT from about 800 g / 3″ to about 1,200 g / 3″ and a GM Slope from about 10.0 kg to about 15.0 kg.

4. The multi-ply treated facial tissue product of claim 1 wherein the tissue product has a Stiffness Index less than about 20.0.

5. The multi-ply treated facial tissue product of claim 1 wherein the tissue product has a TS7 from about 7.50 to about 9.00.

6. The multi-ply treated facial tissue product of claim 1 wherein the wetting agent comprises a nonionic surfactant.

7. The multi-ply treated facial tissue product of claim 6 wherein the nonionic surfactant is selected from a fatty alcohol ethoxylate, an alkyl phenol ethoxylate, a fatty acid alkoxylate or a combination thereof.

8. The multi-ply treated facial tissue product of claim 1 having a Wet-Out time ranging from about 10 to about 30 seconds.

9. The multi-ply treated facial tissue product of claim 1 wherein the first, second and third tissue plies are creped, wet-pressed tissue plies.

10. The multi-ply treated facial tissue product of claim 1 wherein the polysiloxane comprises an amino functional moiety selected from a primary amine, a secondary amine, a tertiary amine, a quaternary amine, an unsubstituted amide, and mixtures thereof.

11. A treated tissue product having a first and a second outwardly facing surface, the tissue product comprising a first, a second and third tissue ply and a softening composition disposed on the first or the second outwardly facing surface, the softening composition comprising at least one polysiloxane and a wetting agent wherein the wetting agent comprises from 8 wt % to 15 wt % of the softening composition, the tissue product having a GMT ranging from about 800 to about 1,000 g / 3″, a HST ranging from about from 10 seconds to 40 seconds and a TS7 value from 7.50 to about 10.0.

12. The treated facial tissue product of claim 11 having a GM Slope from about 10.0 kg to about 15.0 kg.

13. The treated facial tissue product of claim 11 wherein the tissue product has a Stiffness Index less than about 20.0.

14. The treated facial tissue product of claim 11 wherein the wetting agent comprises a nonionic surfactant.

15. The treated facial tissue product of claim 14 wherein the nonionic surfactant is selected from a fatty alcohol ethoxylate, an alkyl phenol ethoxylate, a fatty acid alkoxylate or a combination thereof.

16. The treated facial tissue product of claim 11 having a Wet-Out time ranging from about 10 to about 30 seconds.

17. The multi-ply treated facial tissue product of claim 11 wherein the first, second and third tissue plies are creped, wet-pressed tissue plies.

18. The multi-ply treated facial tissue product of claim 11 wherein the polysiloxane comprises an amino functional moiety selected from a primary amine, a secondary amine, a tertiary amine, a quaternary amine, an unsubstituted amide, and mixtures thereof.

19. A method of manufacturing a tissue product comprising the steps of:a. forming an aqueous suspension of papermaking fibers;b. depositing the aqueous fiber suspension onto a forming fabric to form a web;c. drying the web to form a tissue sheet;d. combining three tissue sheets form a multi-ply tissue basesheet having a first and a second outer surface; ande. topically treating the first and the second outer surfaces with an aqueous emulsion comprising 8 wt % to 10 wt % of a wetting agent and a polysiloxane to form a treated tissue product20. The method of claim 19 wherein the treated tissue product has a GMT ranging from about 800 to about 1,000 g / 3″, an HST ranging from about from about 10 seconds to about 40 seconds and TS7 value from about 7.50 to about 10.0.

21. The method of claim 19 wherein the wetting agent comprises a nonionic surfactant.

22. The method of claim 19 wherein the polysiloxane comprises an amino functional moiety selected from a primary amine, a secondary amine, a tertiary amine, a quaternary amine, an unsubstituted amide, and mixtures thereof.

23. The method of claim 19 wherein the treated tissue product has a Wet-Out time ranging from about 10 to about 30 seconds.

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