JP2015525310A - Processed nonwoven fabric containing functional additives and method for producing the processed nonwoven fabric - Google Patents

Abstract

Provided are processed nonwovens having improved tactile properties. A product comprising the processed nonwoven is also provided. A method of making a processed nonwoven fabric is provided.

Description

  In the following background discussion, references are made to specific structures and / or methods. However, the following references should not be construed as an admission that these structures and / or methods constitute prior art. Applicant specifically has the right to specify that such structures and / or methods are not considered prior art.

  Products including nonwovens or materials intended to come into contact with the skin are known in the art. Such products include absorbent products such as diapers, adult incontinence pads or briefs, feminine hygiene products (eg, sanitary napkins), bandages, and the like. Personal care and household wipes are also typically made of non-woven fabrics. Prolonged skin contact with the nonwoven fabric can result in discomfort due to irritation due to contact with the nonwoven fabric, for example.

  For products containing nonwoven surfaces intended to come into contact with the skin, such as wipes, diapers, adult incontinence products, and feminine hygiene products with non-woven surfaces having improved tactile properties in the art There are currently unmet requests in progress. The present disclosure addresses this need.

  The following summary is not an extensive overview. It is not intended to identify key or critical elements of the various embodiments, nor is it intended to delineate their scope.

  A processed non-woven fabric having improved tactile properties is provided. Processed nonwovens include nonwovens that contain an appropriate amount of functional additives to improve tactile properties. Also provided is a non-woven product for use in contact with the skin, the product comprising a non-woven fabric that contacts the skin. Nonwovens are processed nonwovens having improved tactile properties. Exemplary nonwoven products are diapers, adult incontinence products, feminine hygiene products, and wipes. Also provided is a method for producing a processed nonwoven fabric having improved tactile properties. The method includes contacting the surface of the nonwoven with an aqueous surface modification composition comprising a functional additive and drying the contacted surface to produce a processed nonwoven. Contacting the surface includes spraying, brushing, spinning, dipping, or other methods of applying the surface modifying composition to the nonwoven surface.

  The functional additives are additive A, additive B, additive C, additive D, additive E, additive F, additive G, additive H (each listed in columns 2 and 3 of Table 1). ), A mixture of additives G and F (“additive BA”), a mixture of additives F and B (“additive BB”), and a mixture of additives F and H (“additive BC”) ). The nonwoven can include a plastic selected from the group consisting of polyester, polyamide, and polyolefin. Exemplary polyolefins are polypropylene and polyethylene. An exemplary polyester is polylactide.

  In one embodiment, the functional additive can be present substantially on the surface of the nonwoven and optionally in the gaps present on the surface of the fabric. In another embodiment, the nonwoven is partially or fully impregnated with the functional additive.

  In one embodiment, the functional additive on the nonwoven is additive A, and the nonwoven is i) about 0.007 to about 0.054 g of additive A per square meter of nonwoven, or ii) about 0.05 to About 0.040% by weight of additive A (based on the weight of the dry green fabric).

  In another embodiment, the functional additive on the nonwoven is additive B, and the nonwoven is i) about 0.095 to about 0.135 g of additive B per square meter of nonwoven, or ii) about 0.70. ˜about 1.0% by weight of additive B (based on the weight of the dry green fabric).

  In another embodiment, the functional additive on the nonwoven is additive C, and the nonwoven is i) about 0.068 to about 0.135 g of additive C per square meter of nonwoven, or ii) about 0.50. ˜about 1.0% by weight of additive C (based on the weight of the dry green fabric).

  In another embodiment, the functional additive on the nonwoven is additive D, and the nonwoven is i) about 0.081 to about 0.135 g of additive D per square meter of nonwoven, or ii) about 0.60. ˜about 1.0% by weight of additive D (based on the weight of the dry green fabric).

  In another embodiment, the functional additive on the nonwoven is additive E, and the nonwoven is i) about 0.081 to about 0.135 g of additive E per square meter of nonwoven, or ii) about 0.60. ˜about 1.0% by weight of additive E (based on the weight of the dry green fabric).

  In yet another embodiment, the functional additive on the nonwoven is additive F, and the nonwoven is i) about 0.203 to about 0.324 g of additive F per square meter of nonwoven, or ii) about 1. 5 to about 2.4% by weight of additive F (based on the weight of the dry green fabric).

  In another embodiment, the functional additive on the nonwoven is additive G, and the nonwoven is i) about 0.3513 to about 0.378 g of additive G per square meter of nonwoven, or ii) about 2.6. ˜about 2.84% by weight of additive G (based on the weight of the dry green fabric).

  In another embodiment, the functional additive on the nonwoven is additive H, and the nonwoven is i) about 0.230 to about 0.270 g of additive H per square meter of nonwoven, or ii) about 1.7. ˜about 2.0% by weight of additive H (based on the weight of the dry green fabric).

  In yet another embodiment, the functional additive on the nonwoven is a mixture BA and the ratio of additive G to additive F is about 1: 1.

  In another embodiment, the functional additive on the nonwoven is admixture BB and the ratio of additive F to additive B is about 10: 3.

  In another embodiment, the functional additive on the nonwoven is Mixture BC and the ratio of Additive F to Additive H is about 1: 1.

  For the purpose of illustrating various compositions and methods, certain embodiments are depicted in the drawings. However, the compositions and their methods of use are not limited to the exact arrangement and means of the embodiments depicted in the drawings.

  The drawing is a chart depicting a paired comparison of a series of processed nonwoven samples compared to a control group (unprocessed nonwoven samples) for sensory evaluation (softness / smoothness). The product used for processing is listed next to the relevant data. The weight percent of the product on the nonwoven sample is shown in parentheses. Respondents (n = 3) should make each test sample 0 similar to the control group, with −1 being “very bad” and +1 being “very good” relative to the control group. , -1 to 1, and -0.5 and +0.5 were used to distinguish "slightly bad" and "slightly good" relative to the control group. The black code is Wilcoxon test, P value ≧ 0.1. The white sign is the lower limit 90% confidence value (lcb) towards zero value> 0.66667.

DESCRIPTION As envisioned in the present disclosure for the disclosed methods and compositions, in one aspect, embodiments of the present disclosure include the chemical components and / or steps disclosed therein. In another aspect, embodiments of the present disclosure consist essentially of the chemical components and / or steps disclosed therein. In yet another aspect, embodiments of the present disclosure consist of the chemical components and / or steps disclosed therein.

  There is a need in the art for nonwovens with improved tactile properties and products having nonwovens. Provided herein are processed nonwovens having improved tactile properties, products comprising the processed nonwovens, and methods of producing processed nonwovens that meet these requirements.

Definitions As used herein, each of the following terms has the meaning associated with it in this section.

  As used herein, the articles “a” and “an” are used to refer to one or more (ie, at least one) of the grammatical objects of the article. By way of example, “an element” means one element or more than one element.

  The term “about” will be understood to some extent by those skilled in the art and will vary to some extent on the context in which it is used. As used herein, “about” is a variation of ± 20%, more preferably ± 10%, more preferably ± 5%, even more preferably ± 1%, and even more preferably ± 0.1%. Is meant to be included.

  As used herein, “woven fabric” generally refers to a material having two-dimensional characteristics, ie, a material whose length and width are much greater than its thickness. The surface of a fabric is generally defined by length and width dimensions as used herein.

  As used herein, “nonwoven” fabric or material refers to a woven fabric or material that is combined from woven double-sided fibers that are not double-sided by weaving. Nonwoven fabrics are typically made of plastic resin. The plastic resin fibers are combined by mechanical, chemical and / or thermal methods to form a nonwoven. Exemplary methods of manufacturing the nonwoven fabric or material include melt blowing, spin bonding, air laying, and spunlace.

  As used herein, “nonwoven product” refers to a product that includes a nonwoven surface. The product can consist of a nonwoven / material, or the product can include a non-woven surface, such as a nonwoven, as part or all of the outer surface of the product. Exemplary nonwoven products include, but are not limited to, diapers, adult incontinence products, feminine hygiene products, and wipes such as baby wipes.

  As used herein, a “functional additive” refers to a novel property when added, coated, sprayed, brushed, and / or otherwise applied to a nonwoven / material. Refers to a composite or composition of compositions that results in, improves existing desirable properties of the nonwoven / material and / or reduces existing undesirable properties.

  As used herein, a “surface modification composition” refers to a composition that includes or consists of a functional additive.

  As used herein, a “processed with a surface modification composition” surface is the surface modification composition added, coated, sprayed, brushed, and / or otherwise applied to the surface. ing.

  As used herein, “processed nonwoven product” refers to a nonwoven product having a nonwoven surface processed with a surface modifying composition.

  As used herein, “tactile properties” refers to properties that are sensed by touch. Exemplary haptic properties include, but are not limited to, softness and smoothness.

  As used herein, an “improved haptic property” of a processed nonwoven product refers to a haptic property that is judged better than the corresponding raw nonwoven product. The improvement may be the introduction of new properties, the improvement of existing desirable properties of the raw nonwoven / material, and / or the reduction of existing undesirable properties. The review can be qualitative or quantitative. Methods for reviewing haptic properties commonly used in the art are known to those skilled in the art. Exemplary and non-limiting methods are described in the examples.

  It is to be understood that all or partial integers that fall between any range described herein are included herein.

DETAILED DESCRIPTION A processed nonwoven fabric with improved tactile properties is provided. Processed nonwoven products are also provided. The processed nonwoven product includes a nonwoven product that includes a nonwoven surface, and the nonwoven surface includes a functional additive. The functional additive can be present substantially only on the surface as a coating. Optionally, the surface coating may also include functional additives that are partially present in gaps that may be present on the surface. Alternatively, the nonwoven can be impregnated with functional additives, and thus can include functional additives to a significant depth of the fabric thickness in addition to the functional additives on the surface. This impregnation can be over part or all of the thickness of the fabric. As used herein, the phrase “contacting a non-woven surface” encompasses all of these embodiments, unless otherwise specified.

  The functional additive can be present on substantially the entire non-woven two-dimensional surface or can be present on only a small portion of the non-woven two-dimensional surface. For example, in a product where only a portion of the nonwoven surface is intended to come into contact with the skin, the functional additive may be on the nonwoven surface portion and / or the nonwoven that is intended to substantially contact the skin. It can be present only in the surface portion. Nonwoven fabrics may contain functional additives on one or both sides of the two-dimensional surface. If both sides of the two-dimensional surface of the nonwoven include functional additives, the additives can be the same or different on both surfaces.

  Table 1 is a list of functional additives AH that have been found to improve the tactile properties of nonwovens and provides an explanation of the chemical components of the additives. An exemplary product for Additive A is sold under the trademark COSMEDIA® SP (BASF). An exemplary product for additive B is sold under the trademark COSMEDIA® Triple C (BASF). An exemplary product for additive C is sold under the trademark RHEOCARE® HSP-1180 (BASF). An exemplary product for additive D is sold under the trademark SALCARE® SC96 (BASF). An exemplary dispersion product for additive E is sold under the trademark TINOVIS® CD (BASF). An exemplary product for additive F is sold under the trademark LAMESOFT (TM) TM BENZ (BASF). An exemplary product for additive G is sold under the trademark PLANTASIL® Micro (BASF). An exemplary product for additive H is sold under the name Advanced Moisture Complex W (BASF). These are exemplary commercial products and chemical descriptions for each product are also included in Table 1.

  Functional additives can be added, sprayed, coated, brushed, and / or otherwise applied to the nonwoven in the form of a surface modification composition. The surface modification composition may consist of a functional additive and water, or may contain additional compatible chemical components. As used herein, a “compatible chemical component” does not adversely affect the application of the surface modification composition to the nonwoven, but does not adversely affect the improved tactile properties provided by the functional additive. There are no chemical components. The surface modification composition can be substantially aqueous or can include a hydrophobic or oily chemical component, such as an emulsion.

  The surface modification composition has a functional additive in an amount ranging from about 0.05% to about 2.0% by weight or a functional additive ranging from about 0.1% to about 1.0% by weight. May be included. Exemplary weight percent ranges for each additive in the surface modification composition are shown in Table 2. The surface modification composition is typically aqueous. For water-soluble functional additives, the surface modification composition can be made by simple mixing. For functional additives that are partially or completely insoluble in water, the surface modification composition can be made using, for example, hot water and mixing equipment sufficient to make an emulsion.

  The resulting processed nonwoven is applied to the nonwoven surface with a surface modification composition containing a sufficient amount of functional additive to provide an appropriate amount of additive to obtain improved tactile properties. An exemplary range of appropriate amounts of each functional additive for the processed nonwoven is presented in Table 3. An appropriate amount for the dry raw nonwoven is provided in weight percent functional additive. Alternatively, an appropriate amount for the surface area of the nonwoven is also provided in the weight percent functional additive. Exemplary suitable amounts for each additive are described.

  Certain individual additive admixtures have also been found to improve the tactile properties of nonwovens. The admixture may comprise two additives in a ratio of 3:10 to 10: 3. The ratio can be 1: 1. The individual additive mixtures shown in Table 4 are useful as functional additives to improve the tactile properties of the nonwoven. Table 4 also includes an exemplary but non-limiting weight percent of the individual additives in the surface modification composition in an appropriate amount to improve exemplary but non-limiting tactile properties.

  A method for producing a processed nonwoven fabric is also provided. Briefly, the disclosed method includes contacting a nonwoven with a surface modification composition that includes a functional additive. As described elsewhere herein, contacting the nonwoven surface can result in a surface coating that can penetrate into gaps that may be present on the surface, a portion within the thickness of the fabric. Impregnation, and complete impregnation over the thickness of the fabric. It is within the prior art by those skilled in the art to control the contact to obtain the desired embodiment. Functional additives can be added to the nonwoven by any method in the art. Conventional methods include, but are not limited to, spraying, brushing, dipping, spinning, and the like. Functional additives can be added to the nonwoven during the manufacture of the fabric, such as on airlaid or spunlace lines. Alternatively, the functional additive can be added to the nonwoven after the nonwoven has been manufactured, or both during and after manufacture. Functional additives can be added to manufactured products having a non-woven surface after the manufacture of the product. Alternatively, the nonwoven can be processed with the surface modification composition before or during the manufacture of the nonwoven product, or any combination before, during, and after the manufacture of the nonwoven product.

  Exemplary non-woven plastics include, but are not limited to, polyesters, polyolefins, and polyamides. Polypropylene and polyethylene are exemplary polyolefins. Polylactide is an exemplary polyester. Nylon is an exemplary polyamide.

  Any product having a surface comprising a non-woven intended to come into contact with the skin may contain the functional additive of the present disclosure. Exemplary products are wipes such as household wipes, personal care wipes, and industrial wipes. Another exemplary nonwoven product is a diaper. A typical diaper core consists of a top sheet that touches the baby, an absorbent core, and a back sheet that is intended to provide leakage protection. The top sheet can be a nonwoven fabric such as a polypropylene nonwoven fabric or a polyethylene nonwoven fabric. The surface of the topsheet intended to touch the baby's skin can be treated with a surface modification composition comprising functional additives to improve tactile properties, as described herein. Optionally, the backsheet can also be processed with a surface modification composition comprising functional additives. The functional additive can be the same as or different from that on the top sheet. Improved tactile properties can improve the comfort of the baby. For example, softer and / or smoother surfaces can reduce skin irritation and other unpleasant sensations.

  The use of products, compositions and methods is described in more detail by reference to the following experimental examples. These examples are provided for purposes of illustration only, and are not intended to be limiting unless otherwise specified. Accordingly, the products, compositions, and methods of the present disclosure should not be construed as limiting in any way to the following examples, and any and all that will become apparent as a result of the teachings provided herein. It should be construed to encompass all variations.

  Candidate selection: Twenty-one commercial products were selected for experimentation as potential functional additives for nonwoven products. Twenty-one compositions (shown in Table 5) were identified as candidates for compositions for hair and skin applications based on the technical aspects and properties of the compositions to provide improved sensory / tactile properties. Parameters considered in the identification of these 21 compositions included composition components, component ratios, charge density, and molecular weight.

  Candidate products were tested using the following procedure.

  Candidate test solution preparation: Each product was tested for water solubility. Next, a solution or dispersion (hereinafter “test solution”) for each candidate composition was made in water. For water-soluble candidates, the test solution was mixed with a stirrer on a stir plate for 5 minutes. For water-insoluble or partially water-insoluble candidates, the test solution is made using warm water (~ 60 ° C) and mixed for 20 seconds with a homogenizer (Cuisinart® hand blender model number CSB-76). An aqueous dispersion was prepared. If the dispersion was not fully mixed after 20 seconds, additional mixing time was added. For most candidates, the test solution made was generally a 1% solution made in, for example, 100 ml of water or the amount of water necessary to obtain a 1% solution. However, for some candidates, the test solution had a reduced ratio of candidate products because the viscosity of the 1% test solution was too high to allow fine spraying. Data regarding the physical state and solubility of the candidate product and the concentration of the test solution prepared are listed in Table 6.

  Candidate test sample preparation: Immediately after preparation of the test solution, the test solution was added by spraying onto the hydrophilic surface of a 4 inch x 8 inch sample of an exemplary nonwoven as follows.

  The exemplary nonwoven used in this study was manufactured by AVGOL Ltd. Non-woven fabric weight: 13.5 grams per square meter (gsm), width: 20.00 cm, length: 11,500 rmt, rotating area: 2,300.00 sqmt, customer item number: 200000553, PR date: 05/01 / 2010, lot number 23/10, shaft number 1, roll number 3 \ 13. The nonwoven material was cut into 4 "x 8" sections using a paper cutter. The initial weight ("initial fabric sample weight") of each piece of nonwoven was measured and recorded.

  Each nonwoven sample was tested for hydrophilicity by pipetting small droplets of water on each side of the fabric sample. As soon as the hydrophilic surface was determined for the fabric sample, the fabric sample was hung using a binder clip and oriented so that the hydrophilic surface of the sample was facing the sprayer. The test solution was sprayed onto the hydrophilic surface of the sample using a Paasche Painter's Airbrush. The sprayed sample was then weighed to obtain the wet weight of the sample. Two replicates were made for each test solution. The wet weight of the sample was obtained in the range of 0.09 to 1.2 grams. The addition ratio of the combined weight of the test liquid and the nonwoven fabric sample to the weight of the dry nonwoven fabric sample was maintained between 3 and 4 for all samples prepared.

  The wet processed nonwoven sample was air dried overnight on a watch glass. Upon drying, the final dry weight of each processed sample was measured. Each dried processed sample was stored in a sealed plastic ziplock bag. The amount of test product applied to the nonwoven sample was recorded as the weight percent of the product.

  Sensory data collection: Sensory evaluation of processed nonwoven samples was performed by respondents (3 or 4 individuals). The sensory evaluation was performed in comparison with the raw nonwoven fabric. The examination was performed on the palmar forearm. The palmar forearm is the part of the skin between the wrist and elbow on the palm side of the arm, and the skin at this part is very sensitive. Non-processed or processed nonwoven samples were contacted by rubbing the palm side forearm in a circle. To prevent respondents from visually distinguishing between processed and non-processed nonwovens, respondents were asked not to look at the sample during the evaluation. Smoothness / softness was the sensory characteristic that respondents were required to evaluate. Respondents assumed that each test sample was -1 to 1, with 0 being similar to the control group, -1 being "very bad" and +1 being "very good" relative to the control group. Asked to score, -0.5 and +0.5 were used to distinguish "slightly bad" and "slightly good" relative to the control group. The test was performed at room temperature.

  Statistics: To evaluate sensory data, the median for each parameter, as well as the mean absolute deviation from the median, was calculated as a measure of the variability of the individual values for each parameter. A Wilcoxon test was performed to calculate the statistical significance of pairwise calculations.

  The non-woven sample weight percent product data and sensory data for the 21 candidate products are summarized in Table 7.

  A statistical analysis of the data in Table 7 is depicted in the diagram in the figure. In the chart, the position of the code indicates the median value. The mean absolute deviation from the median value changes to a weighted deviation from the median value and is shown in the chart as a transition line.

  The data indicate that the majority of candidate products did not improve or deteriorated the tactile properties of the nonwoven compared to the raw nonwoven. These results were surprising because all of the candidate products were selected for a known function for improving tactile properties in hair and skin applications. Candidates that have improved the tactile properties of the nonwoven fabric are C1 (COSMEDIA® SP), C2 (COSMEDIA® Triple C), C5 (RHEOCARE® HSP-1180), C6 (SALCARE®). SC96), C7 (TINOVIS (R) CD), C10 (LAMESOFT (TM) TM BENZ), and C20 (Advanced Moisture Complex W). Although the median score for candidate C13 (PLANTASIL® Micro) was 0, the weighted deviation suggests that this composition can also improve the tactile properties of the nonwoven. In some cases, improved tactile properties were observed in only one of the two weight percent products tested. Specifically, COSMEDIA® SP is 0.18% by weight, COSMEDIA® Triple C is 0.81% by weight, TINOVIS® CD is 0.77% by weight, and LAMESOFT ( TM BENZ improved softness / smoothness at 2.1% by weight, PLATASIL® Micro at 2.66% by weight, and Advanced Moisture Complex W at 1.88% by weight. RHEOCARE (R) HSP-1180 improves tactile properties at 0.66 wt% and 0.73% wt, and SALCARE (R) SC96 at 0.94 wt% and 0.82 wt%, nonwoven fabric tactile properties Improved.

  A series of admixtures of a subset of candidate products was also made. Mixture test solutions were made by simple mixing using stirrers and stir plates. For each test liquid mixture shown in Table 8, the first candidate product is mixed in water and then the second product is added to obtain the desired weight percent of each mixture in the final mixture. It was. For example, Mixture B1 mixes candidate C13 in water, and then adds the appropriate amount of candidate C10 to obtain a test liquid mixture consisting of 0.5 wt% C13 and 0.5 wt% C10. Made by. A summary of the admixture and data for the fabricated processed fabric samples is shown in Table 8.

  Nonwoven samples processed with a series of test liquid admixtures were made and tested by two individual respondents. Sensory data for the mixture is summarized in Table 9.

  This data demonstrates that only three of the admixtures improved the tactile properties of the nonwoven. The three admixtures are B1, B2, and B5. All three of these admixtures contained candidate C13 (LAMESOFT® TM BENZ).

  Additional replicas of some processed nonwoven samples of candidate products and admixtures were made for testing by two additional respondents. Candidate products were C2, C6, C7, C10, C13, and C20. The admixtures were B1, B2, and B5. The sensory test was performed using a scale of 1 to 5, with 5 being “best felt”. Two respondents were asked to score the samples for tactile characteristics, as well as other performance parameters typically tested for diapers. The hydrophobic / hydrophilicity of the processed nonwoven samples was also examined using a deionized water drop penetration test for chemical coatings on the nonwoven sheets (n = 3 drops). In brief, a drop of deionized water dropped from the height of about 1 cm onto the sample surface. If water droplets remain on the surface of the nonwoven sample for more than 10 seconds, the surface is considered hydrophobic. If water drops remain on the surface of the nonwoven sample for less than 3 seconds, the surface is considered hydrophilic. If water drops remain on the surface of the nonwoven sample for more than 3 seconds and less than 10 seconds, it is considered stagnation. The water surface tension is about 72 dynes / cm at room temperature. The data is presented in Table 10.

  Both respondents commented that the nonwoven fabric sample processed with additive C2 was exceptionally comfortable among the nine samples evaluated.

  The disclosure of each and every patent, patent application, and publication mentioned in this specification is hereby incorporated by reference in its entirety for all purposes.

  Although products, methods of making them, and methods of using them have been disclosed with reference to particular embodiments, other embodiments and variations can be made without departing from the true spirit and scope of the described products and methods. Obviously, it can be devised by those skilled in the art. It is intended that the appended claims be construed to include all such embodiments and equivalent variations.

Claims (24)

  A processed nonwoven fabric having improved tactile properties, including a nonwoven fabric containing an appropriate amount of a functional additive to improve tactile properties, said functional additive comprising additive A, additive B, Additive C, Additive D, Additive E, Additive F, Additive G, Additive H (each listed in the second and third rows of Table 1), Mixture of Additives G and F Selected from the group consisting of additives ("Additive BA"), additives F and B ("Additive BB"), and additives F and H ("Additive BC") A featured non-woven fabric.   The processed nonwoven fabric according to claim 1, wherein the nonwoven fabric comprises a plastic selected from the group consisting of polyester, polyamide, and polyolefin.   The processed nonwoven fabric according to claim 2, wherein the nonwoven fabric comprises a polyolefin selected from the group consisting of polypropylene and polyethylene.   The processed nonwoven fabric according to claim 2, wherein the nonwoven fabric includes polyester, and the polyester is polylactide.   The processed nonwoven fabric according to claim 1, wherein the functional additive is substantially present on the surface of the fabric and optionally in a gap present on the surface of the fabric.   The processed nonwoven fabric according to claim 1, wherein the fabric is impregnated partially or entirely with the functional additive.   The functional additive is Additive A, and the nonwoven is i) about 0.007 to about 0.054 g of additive A per square meter of nonwoven, or ii) about 0.05 to about 0.040% by weight. The processed nonwoven fabric according to any one of claims 1 to 6, comprising the additive A (based on the weight of the dry raw fabric).   The functional additive is additive B and the nonwoven is i) from about 0.095 to about 0.135 g of additive B per square meter of nonwoven, or ii) from about 0.70 to about 1.0% by weight. The processed nonwoven fabric according to any one of claims 1 to 6, comprising the additive B (based on the weight of the dry raw fabric).   The functional additive is Additive C, and the nonwoven is i) about 0.068 to about 0.135 g of additive C per square meter of nonwoven, or ii) about 0.50 to about 1.0% by weight. The processed nonwoven fabric according to any one of claims 1 to 6, comprising the additive C (based on the weight of the dry raw fabric).   The functional additive is additive D, and the nonwoven is i) about 0.081 to about 0.135 g of additive D per square meter of nonwoven, or ii) about 0.60 to about 1.0% by weight. The processed nonwoven fabric according to any one of claims 1 to 6, comprising the additive D (based on the weight of the dry raw fabric).   The functional additive is additive E and the nonwoven is i) about 0.081 to about 0.135 g of additive E per square meter of nonwoven, or ii) about 0.60 to about 1.0% by weight. The processed non-woven fabric according to any one of claims 1 to 6, comprising an additive E (based on the weight of the dry raw fabric).   The functional additive is additive F, and the nonwoven is i) from about 0.203 to about 0.324 g of additive F per square meter of nonwoven, or ii) from about 1.5 to about 2.4% by weight. The processed nonwoven fabric according to any one of claims 1 to 6, comprising the additive F (based on the weight of the dry raw fabric).   The functional additive is additive G, and the nonwoven is i) about 0.3513 to about 0.378 g of additive G per square meter of nonwoven, or ii) about 2.6 to about 2.84% by weight. The processed nonwoven fabric according to any one of claims 1 to 6, comprising the additive G (based on the weight of the dry raw fabric).   The functional additive is Additive H, and the nonwoven is i) about 0.230 to about 0.270 g of additive H per square meter of nonwoven, or ii) about 1.7 to about 2.0 wt%. The processed nonwoven fabric according to any one of claims 1 to 6, comprising the additive H (based on the weight of the dry raw fabric).   The processed nonwoven fabric according to any one of claims 1 to 6, wherein the functional additive is a mixture BA, and the ratio of the additive G to the additive F is about 1: 1.   The processed nonwoven fabric according to any one of claims 1 to 6, wherein the functional additive is a mixture BB, and the ratio of the additive F to the additive B is about 10: 3.   The processed nonwoven fabric according to any one of claims 1 to 6, wherein the functional additive is a mixture BC, and the ratio of the additive F to the additive H is about 1: 1.   The nonwoven product used in contact with skin, including a nonwoven fabric in contact with skin, wherein the nonwoven fabric is the processed nonwoven fabric according to any one of claims 1 to 17.   19. The nonwoven product of claim 18, wherein the product is selected from the group consisting of diapers, adult incontinence products, feminine hygiene products, and wipes. A method of producing a processed nonwoven fabric having improved tactile properties comprising:
Contacting the surface of the nonwoven fabric with an aqueous surface improving composition containing a functional additive, and drying the contacted surface to produce the processed nonwoven fabric,
The functional additives are additive A, additive B, additive C, additive D, additive E, additive F, additive G, and additive H (each in columns 2 and 3 of Table 1). ), A mixture of additives G and F (“additive BA”), a mixture of additives F and B (“additive BB”), and a mixture of additives F and H (“addition”). Selected from the group consisting of agent BC "),
The process nonwoven fabric comprises an appropriate amount of the functional additive to improve tactile properties.   21. The method of claim 20, wherein contacting the surface of the nonwoven comprises spraying the aqueous surface modifying composition comprising a functional additive on the surface.   21. The method of claim 20, wherein the nonwoven comprises a plastic selected from the group consisting of polyester, polyamide, and polyolefin.   23. The method of claim 22, wherein the nonwoven comprises a polyolefin selected from the group consisting of polypropylene and polyethylene.   23. The method of claim 22, wherein the nonwoven fabric comprises polyester, and the polyester is polylactide.

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