Textile finishing method

Abstract

The invention relates to a textile finishing method. The textile finishing method comprises the following steps: providing continuous supply of textiles; piezoelectric drop ink jet printing of one or more textile finishing compositions on the face of the textile or on one or more regions of the face of the textile; drying the textile; and calendaring the dried textile; and to a finished textile obtained by said method.

Description

Technical Field

[0001] The present invention relates to the technical field of methods for chemical textile finishing. Background Art

[0002] Today, the textile industry uses many industrial finishing processes. Therefore, textiles frequently undergo a finishing process that gives the textile its final appearance and properties. The finishing process or method can be performed mechanically (e.g., corundum napping, compression shrinking, shearing) or chemically.

[0003] Chemical finishing involves the modification of textile fibers through chemical action. Chemical finishing is typically performed by padding, during which the textile is completely immersed in a textile finishing composition and then undergoes repeated cycles of drying, fixing, and condensation. Typically, the drying step is performed by exposure to infrared (IR) light, while the fixing step is performed by exposure to hot air (e.g., 120°C for 60 seconds) using high-temperature fixing frames. The padding process consumes a large amount of resources (e.g., finishing composition, water, and energy). Typically, the finished textile must be endowed with a variety of properties (e.g., softness, water repellency, improved wicking properties, UV blocking properties, flame retardancy) to meet customer expectations. Consequently, a variety of textile finishing compositions and multiple independent textile padders (one for each textile finishing composition) along with corresponding IR dryers and high-temperature frames are required. Because each finishing process must be performed separately in independent equipment, the textile finishing process requires a relatively large area, typically distributed across different room areas, and requires extensive manual intervention.

[0004] To overcome the shortcomings of padding-based finishing methods, U.S. Patent Application Publication No. US20090298368A1 proposes a finishing composition that can be printed using continuous inkjet printing and a method for textile finishing based on continuous inkjet printing. The method comprises providing a continuous supply of textile substrate, providing an array of continuous-flow inkjet nozzles, supplying a finishing composition to the nozzles, and selectively dispensing the composition from the nozzles to deposit a predetermined distribution of droplets on the substrate. An exemplary finishing composition comprises 10% by weight of a finishing agent, 15% by weight of polyethylene glycol, 10% by weight of polyvinyl pyrrolidone, 64.75% by weight of water, a surfactant, a biocide, and a defoamer. Prior to the finishing method, the textile is coated with one or more coatings (thin functional layers to protect or enhance the durability of the substrate and to receive the finishing composition). To affect the coating and / or finishing, US20090298368A1 recommends drying the textile by exposure to infrared light after each coating step and before the finishing step. To impart a variety of properties to the finished product, US20090298368A1 proposes the use of multiple continuous-flow inkjet nozzle arrays, each of which is supplied with a finishing composition. The number of continuous-flow inkjet nozzle arrays required to apply the coating and finishing composition results in high equipment purchase and maintenance costs. The method described in US20090298368A1 appears to reduce water, finishing composition, and energy consumption compared to finishing methods that include a padding step. However, this method requires coating the textile before continuous inkjet printing the finishing composition, which results in increased chemical consumption. In addition, due to the high droplet volume (800 pL) and droplet generation mechanism of continuous inkjet (which causes the viscosity of the finishing composition to increase during printing), the resulting finish is thick and uneven (due to overlapping deposited droplets and increased viscosity during printing), and the air permeability of the finished textile is compromised due to complete coverage of the open pores between fibers.

[0005] In view of the drawbacks of known textile finishing methods, there is an urgent need for an environmentally friendly process in terms of water, chemical and energy consumption, which meets industrial requirements in terms of quality of the finished textile, finishing speed, space required for finishing equipment, acquisition and maintenance costs and human intervention. Summary of the Invention

[0006] Summary of the Invention

[0007] Therefore, the object of the present invention is to provide a method for finishing textiles, which method comprises the following steps, preferably consists of the following steps:

[0008] a) provide a continuous supply of textiles;

[0009] b) piezoelectric drop-on-demand inkjet printing one or more textile finishing compositions onto the side of the textile provided in step a) or onto one or more areas of the side of the textile provided in step a);

[0010] c) drying the textile obtained in step b) by exposing to air at a temperature of about 120° C. to about 140° C. to provide a dried textile; and

[0011] d) calendering the dried textile obtained in step c) at a temperature of about 180° C. to about 220° C. for at least 10 seconds to provide a finished textile, and preferably at a pressure of 2-4 bar.

[0012] Preferably, steps a), b), c) and d) are performed continuously and / or in step b) at least two, preferably at least three, more preferably at least four textile finishing compositions are applied using a single piezoelectric drop-on-demand inkjet print head.

[0013] Another aspect according to the present invention relates to a finished textile obtained by the process described and claimed herein, and to a garment comprising the finished textile.

[0014] Detailed description of the invention

[0015] The object of the present invention is therefore to address the need for a textile finishing method that is environmentally friendly with respect to water, chemical, and energy consumption, does not require cost-intensive and bulky equipment and continuous human intervention, and provides finished textiles with a uniform and wash-resistant finish in a time-efficient manner that meets the requirements of the textile industry. This object is achieved by a textile finishing method according to claim 1. Preferred embodiments are described in the description and claims.

[0016] Hereinafter, the present invention will be described in more detail.

[0017] When the present specification mentions “preferred” embodiments / features, combinations of these “preferred” embodiments / features are also considered to be disclosed, as long as the specific combination of “preferred” embodiments / features makes technical sense.

[0018] Unless otherwise stated, the following definitions apply to this specification:

[0019] As used herein, the terms “a,” “an,” “the” and similar referents used in the context of the invention (especially in the context of the claims) are to be construed to cover both the singular and the plural, unless otherwise indicated herein or clearly contradicted by context.

[0020] As used herein, the term "and / or" means that all or only one of the elements of the group may be present. For example, "A and / or B" means "only A, or only B, or both A and B." In the case of "only A," the term also encompasses the possibility that B is not present, i.e., "only A, but not B."

[0021] As used herein, the terms "including," "containing," and "comprising" are used herein in their open, non-limiting sense. It is understood that the various embodiments, preferences, and ranges can be combined in any manner. Thus, for example, a solution comprising compound A may contain other compounds in addition to A. However, the term "comprising," as a specific embodiment thereof, also encompasses the more restrictive meanings of "consisting essentially of" and "consisting of," so that, for example, a "solution comprising A, B, and optionally C" may also consist (essentially) of A and B, or (essentially) of A, B, and C. As used herein, the transition phrase "consisting essentially of" (and grammatical variations) is to be interpreted as encompassing the recited materials or steps as well as those that do not materially affect the basic and novel characteristics of the claimed invention. Thus, the term "consisting essentially of" should not be interpreted as being equivalent to "comprising."

[0022] As used herein, the term "about" means that the amount or value in question can be the specified specific value or some other value in its vicinity. Generally, the term "about" indicating a value is intended to indicate a range within ±5% of that value. As an example, the phrase "about 100" indicates a range of 100 ± 5, i.e., a range from 95 to 105. Preferably, the range indicated by the term "about" indicates a range within ±3%, preferably within ±1%, of the value. Generally, when the term "about" is used, it is expected that similar results or effects according to the present invention can be obtained within a range of ±5% of the indicated value.

[0023] Surprisingly, it was found that a process comprising, preferably consisting of, the following steps leads to a finished textile having a uniform and wash-resistant finish:

[0024] a) provide a continuous supply of textiles;

[0025] b) piezoelectric drop-on-demand inkjet printing one or more textile finishing compositions onto the side of the textile provided in step a) or onto one or more areas of the side of the textile provided in step a);

[0026] c) drying the textile obtained in step b) by exposing to air at a temperature of about 120° C. to about 140° C. to provide a dried textile; and

[0027] d) calendering the dried textile obtained in step c) at a temperature of about 180° C. to about 220° C. and preferably at a pressure of 2-4 bar for at least 10 seconds to provide a finished textile.

[0028] As used herein, the term "textile" is intended to encompass all forms of textile substrates, including weaving, knitting and nonwoven textile substrates. The term is intended to exclude fiber substrates with two-dimensional rigidity, such as carpets, paper and cardboard. Although this fiber substrate is sometimes also referred to as textiles, its internal connection mode makes it remain substantially fixed in two-dimensional form. Even if they may be flexible in the third dimension, they cannot be freely stretched or deformed in the fiber layer plane usually, and this is inherent to real textiles. Preferably, the length of this textile is greater than 100 meters (such as 500 meters), and can be provided on a roll greater than 1 meter in width. Preferably, this textile is woven, knitted or nonwoven fabric. This fabric preferably comprises synthetic and / or natural fibers, preferably selected from cellulose fibers, elastic fibers, polyamide fibers and polyester fibers. In one embodiment, this fabric comprises synthetic and / or natural fibers, selected from cellulose fibers, elastic fibers and polyamide fibers. The textile that step a) provides can be uncolored (i.e., this textile and its fiber have not yet been contacted with colorant before) or colored. Since colored textiles are more in line with consumer preferences, the textile provided in step a) is colored, i.e., the fibers constituting the textile have been previously dyed, or the textile itself has been previously contacted with one or more colorants (e.g., dyes or pigments) in a dyeing and / or printing process. The textile provided in step a) of the method described and claimed herein does not require a coating pretreatment as is the case in the method of US20090298368A. To be compatible with currently commercially available industrial textile printing presses, the textile is supplied in step a) from a textile roll.

[0029] In step b) of the method described and claimed herein, one or more textile finishing compositions are applied to the face of the textile, or to one or more regions of the face of the textile, by piezoelectric drop-on-demand inkjet printing. As used herein, the term "textile finishing composition" refers to a ready-to-use, aqueous, colorless composition that can be printed by piezoelectric drop-on-demand inkjet printing and contains one or more finishing agents (i.e., substances that change the properties of the textile other than its color). The textile finishing composition imparts a variety of properties to the textile, including but not limited to water repellency, softness, and improved wicking performance. The ready-to-use finishing composition does not need to be prepared on-site and before each finishing process, as is required in finishing methods that include a padding step. The textile finishing compositions described herein are colorless, i.e., they do not contain pigments and / or dyes having a color detectable by the naked eye. In other words, the textile finishing compositions described and claimed herein are pigment-free and solvent-free. Furthermore, in step b), only the textile finishing composition is printed by piezoelectric drop-on-demand inkjet printing. As is known in the art, the term "face" refers to the front or back side of the textile. Advantageously, the use of piezoelectric drop-on-demand inkjet printing enables the selective deposition of one or more textile finish compositions onto one or more areas (regions) on the surface of a textile or substrate. This selective finish cannot be achieved using padding. The low droplet volumes (5 pL, 7 pL, 12 pL, 18 pL) and precise deposition achieved by the piezoelectric drop-on-demand inkjet printhead provide a uniform finish on the textile without affecting the textile's breathability. This uniform finish cannot be achieved using known finishing methods using continuous-flow inkjet nozzle arrays, as the large droplet volumes (800 pL) ejected result in overlapping deposited droplets and an increase in the viscosity of the finish composition during printing. Due to the precise dosing and low droplet volumes of the textile finish composition achieved by piezoelectric drop-on-demand inkjet printing, the volume of textile finish composition applied is significantly lower than that required by padding (4-6 times lower), and a constant deposit of the finish composition is applied across the entire surface to be treated, resulting in a high-quality finish that cannot be achieved using padding or continuous inkjet printing methods. In addition, the volume of wastewater generated by this finishing method is reduced by 4-6 times compared to the padding finishing method. In addition, the use of this finishing method significantly reduces energy consumption.

[0030] Preferably, the one or more textile finishing compositions are present at 10 g / m 2 Up to 30g / m 2 , preferably 10g / m 2 Up to 25g / m 2 Thus, in a preferred finishing method according to the invention, 10 g / m2 of the one or more finishing compositions is printed on the textile. 2 Up to 30g / m2 , preferably 10g / m 2 Up to 25g / m 2 The wet deposit is deposited on the surface of the textile, or on one or more areas of the surface of the textile. Using the finishing method and finishing composition described herein, as low as 10g / m 2 The total amount (wet deposition) of the textile finishing composition is sufficient to impart the desired properties to the textile. These amounts are significantly lower than the wet deposition required for finishing methods known in the art.

[0031] Advantageously, the finishing method described and claimed herein enables the simultaneous application of multiple finishing compositions to an area (region) of a textile using a single piezoelectric drop-on-demand inkjet print head. Consequently, the required equipment is significantly less expensive, more compact, and more reliable than finishing methods using a continuous-flow inkjet nozzle array or a standalone padder. Furthermore, the present finishing method is more convenient than padding-based finishing methods. Preferably, in step b) of the present method, at least two (e.g., a textile softening composition and a water-repellent textile finishing composition), preferably at least three (e.g., a textile softening composition, a water-repellent textile finishing composition, and a textile finishing composition for improving wicking properties), and more preferably at least four different textile finishing compositions are applied using a single piezoelectric drop-on-demand inkjet print head. The wet deposits of the at least two, preferably at least three, and more preferably at least four textile finishing compositions may be the same or different.

[0032] In step c) of the present finishing method, the textile obtained in step b) is dried to evaporate the water contained in the textile finishing composition and provide a dried textile. This step is achieved by exposing the printed textile to air at a temperature of about 120° C. to about 140° C. A drying temperature of about 120° C. to about 140° C. allows for the removal of the solvent (e.g., water) contained in the finishing composition in a time-efficient manner. The exposure time depends on the surface density (g / m 2) of the deposited finishing composition. 2 ) and the temperature used, and is preferably less than 3 minutes, more preferably less than 2 minutes, very preferably about 1 minute, and is consistent with the speed requirements of industrial production processes for textiles.

[0033] The dried textile obtained in step c) is then calendered at a temperature of about 180°C to about 220°C for at least 10 seconds, preferably about 30 seconds. Preferably, the dried textile is calendered for less than 60 seconds. The calender pressure can be adjusted between 0 and 6 bar so that the calender rollers are in contact with the dried textile. Preferably, the pressure applied during the calendering step is 2 to 4 bar, for example about 3 bar. This step ensures that the finish is fixed to the textile fibers and improves wash durability (i.e., the properties imparted to the textile are retained for at least 20 washes). This calendering step is faster than the fixing step conventionally used in padding-based finishing methods using high-temperature (HT) fixing frames, which typically require about 60 seconds at 120°C. HT frames / machines currently used in the textile industry are large devices (heating tunnels of 10-20 meters in length) and require a large amount of space. Therefore, the calender used in the present method (rotating hot-pressing roll-to-roll) takes up significantly less space than industrially available HT frames / machines.

[0034] Preferably, steps a), b), c), and d) of the method described and claimed herein are performed continuously. In this embodiment, the units for continuous textile supply, piezoelectric drop-on-demand inkjet printing, drying, and fixing are installed one after the other, and the textile to be finished passes through them continuously. The units for steps a)-d) can also be combined in a single machine. The textile is continuously conveyed through the machine and is thus in a finished state when it leaves the machine.

[0035] The present finishing method can be carried out using a commercially available industrial textile printing press (e.g., Panthera D8 or Panthera S4 from Swiss Performance Chemicals; LaRIO from MS Printing Solutions) and a calender (rotating hot press roll-to-roll). The industrial textile printing press (e.g., Panthera D8) and calender require significantly less space than currently available industrial textile padding machines and corresponding HT fixing frames.

[0036] Using the method described and claimed herein, finishing speeds of approximately 50 m / min can be achieved.

[0037] Preferably, the one or more finishing compositions are selected from water-repellent finishing compositions, softening compositions, flame-retardant treatment compositions, antimicrobial treatment compositions, wrinkle-resistant treatment compositions, UV-enhancing finishing compositions, finishing compositions for moisture management, and finishing compositions for improving wicking properties. The composition preferably comprises biodegradable ingredients that are harmless to humans and the environment. Organosilicones (polysiloxanes), including epoxy and / or amino-modified polysiloxanes, polyether-modified polysiloxanes comprising polyether reactive groups grafted onto the side chains of the polysiloxane chain, and linear multi-block polysiloxane copolymers, can be widely used as softening agents or softening agents in textile softening compositions to impart softness to the treated textiles and improve the wearing feel. Organosilicon softeners are synthetic compounds whose synthesis generally requires a large amount of energy. Moreover, the production of textile softening compositions using organosilicon softeners has a high carbon footprint because a large amount of energy is required to obtain the desired emulsion. In addition, organosilicon softeners are non-biodegradable and accumulate in the environment. Fluorinated compounds (particularly perfluoro or polyfluoroalkyl substances (PFAS)) are commonly used in water-repellent finishing compositions. Fluorinated compounds are known to accumulate in the environment, drinking water, and food and are harmful to the environment and humans. In a preferred embodiment, the textile finishing composition described herein does not contain silicone and fluorinated compounds, i.e., it is silicone-free and fluorine-free, and preferably contains only biodegradable ingredients.

[0038] The one or more textile finishing compositions preferably comprise, more preferably consist of:

[0039] i) from about 10.0% to about 30.0% by weight of 1,2,3-propanetriol, preferably of plant origin;

[0040] ii) from about 0.05% to about 10.0% by weight of a surfactant, preferably a biodegradable surfactant;

[0041] iii) from about 1.0% to about 10% by weight of a finish selected from the group consisting of plant-derived oils, plant-derived waxes, beeswax, and esterquats, provided that if the finish is a plant-derived wax or beeswax, the composition may further comprise a wax extender;

[0042] iv) optionally, a thickener and / or a biocide and / or a pH adjuster; and

[0043] v) water, made up to 100% by weight; wherein the % by weight is based on the total weight of the composition. This type of textile finishing composition can be used to impart softness, water repellency and / or improved wicking properties to textiles. The properties imparted to the textiles depend on the finishing agent contained in the finishing composition. In these finishing compositions, the finishing agent is a fatty acid ester-containing finishing agent (i.e., a finishing agent comprising one or more fatty acid esters) and is selected from plant-derived oils, plant-derived waxes, beeswax and ester quaternary ammonium compounds. Advantageously, most of the ingredients contained in the composition are natural and biodegradable. In addition, the composition does not contain silicones and fluorinated compounds, which are known to be non-biodegradable and even toxic. In one embodiment, the textile finishing composition does not contain a wax extender. In a more preferred embodiment, the textile finishing composition contains a wax extender.

[0044] The finishing compositions described herein may include up to 1.0% by weight of a thickener. As is well known to those skilled in the art, a thickening agent or thickener is a substance that increases the viscosity of a liquid without substantially changing the other properties of the liquid. Those skilled in the art have the ability to adjust the amount of the thickener to obtain the viscosity required for the textile finishing composition. Preferably, the thickener is a polysaccharide of plant origin (e.g., starch, plant gum). Examples of suitable thickeners include, but are not limited to, carob gum (also known as locust bean gum or carob gum, which contains at least 75% galactomannans), such as commercially available Swiss HEIQ's Carob EXC 25, guar gum, carrageenan, and algin. Advantageously, the thickener is commercially available and can be easily dispersed in water when mixed.

[0045] In addition, the finishing composition may contain up to 0.5% by weight of a biocide. The biocide prevents biological deterioration of the textile, helps prevent the spread of infectious diseases without the need for frequent sterilization, and ensures the stability of the textile finishing composition for at least 12 months. Any biocide conventionally used in the textile industry is suitable for use in the textile finishing composition according to the present invention. Such biocides include, but are not limited to, 1,2-benzisothiazolin-3-one (commercially available from Zeneca Specialties in the form of a solution sold under the trade name Proxel GXL), organocopper compounds, organotin compounds, chlorinated phenols, silver-based microbial agents, and metal-based inorganic compounds such as zinc oxide, zinc salts, and copper salts.

[0046] Preferably, the textile finishing composition has a pH of 5 to 9. The pH value depends on the intended use (e.g., softening, water repellency) and stability conditions of the finishing composition, as well as the properties and effects achieved on the fabric. If desired, the textile finishing composition may further comprise up to 0.5% by weight of a pH adjuster, preferably a pH adjuster of plant origin. Preferably, the pH adjuster is selected from acetic acid, citric acid, ascorbic acid, malic acid, and the like. Preferably, citric acid is used to adjust the pH of the composition to a pH range of 5-7, while acetic acid is used to adjust the pH of the composition to a pH range of 7-9.

[0047] The one or more finishing compositions are heated at 25°C and a shear rate of 200-400s -1 The composition preferably has a viscosity of 5 cP to 9 cP, more preferably 6 to 7 cP, as measured using a Brookfield DVN viscometer, flat plate cone, at 50 RPM. To avoid printhead clogging, the particle size of any solid components present in the textile finishing composition is preferably less than 1 μm. As used herein, a particle size of less than 1 μm means a D99 diameter of less than 1 μm.

[0048] In a preferred textile finishing composition, the finishing agent is an oil of plant origin. Such a composition preferably comprises:

[0049] iii-1) from about 1.0% to about 6.0% by weight of said plant-derived oil. Such textile finishing compositions are particularly useful for imparting improved softness and / or wicking properties to textiles. The term "plant-derived oil" encompasses any oil or triglyceride extracted from a plant (e.g., a fruit or seed). Examples of suitable oils include, but are not limited to, almond oil, babassu oil, borage oil, canola oil, coconut oil, corn oil (maize oil), cottonseed oil, flaxseed oil, grapeseed oil, hazelnut oil, oat oil, olive oil, palm oil, palm kernel oil, peanut oil, rapeseed oil, safflower oil, sesame oil, linseed oil, soybean oil, star palm oil, sunflower oil, walnut oil, apricot oil, sweet almond oil, avocado oil, baobab oil, blueberry seed oil, calendula oil, camellia oil, cherry kernel oil, cranberry seed oil, hemp oil, jojoba oil, kukur nut oil, macadamia nut oil, manketti oil, melon seed oil, moringe oil, peach kernel oil, pistachio oil, raspberry oil, rice bran oil, rosehip oil, soya bean oil, oil), wheat germ oil, yanggu oil, algae oil; their hydrogenated derivatives, and mixtures thereof. In a preferred embodiment, the oil of plant origin is selected from rapeseed oil, linseed oil, algae oil; their hydrogenated derivatives, and mixtures thereof.

[0050] In an alternative textile finishing composition, the finishing agent is a wax of vegetable origin or beeswax. Such a composition preferably comprises:

[0051] iii-2) about 6.5% by weight to about 10% by weight of the plant-derived wax or beeswax. This finishing composition is particularly useful for imparting water repellency to textiles. Advantageously, the composition does not contain paraffin wax, which is a non-biodegradable ingredient widely used in water-repellent textile finishing compositions. This composition may further comprise a wax extender to improve the performance of the wax by increasing the water repellency and / or washability imparted to the textile by the wax. Therefore, a preferred water-repellent finishing composition comprises about 6.5% by weight to about 10% by weight of plant-derived wax or beeswax and about 1.5% by weight to about 4.5% by weight of a wax extender. The term "plant-derived wax" encompasses all plant-derived waxes. Examples of suitable plant waxes include, but are not limited to, carnauba wax, soy wax, jojoba wax, candelilla wax, rice bran wax, sugarcane wax, and mixtures / blends thereof. As is well known in the art, carnauba wax (also known as palm wax) is a common type of plant wax harvested from plant leaves by drying palm leaves and beating them to loosen the wax. The carnauba wax comprises aliphatic esters (approximately 40 wt%), 4-hydroxycinnamic acid diesters (approximately 21.0 wt%), ω-hydroxycarboxylic acids (approximately 13.0 wt%), and fatty alcohols (approximately 12 wt%). The compounds are primarily derived from acids and alcohols in the C26-C30 range. In a particular water repellent finish composition, the plant-derived wax is carnauba wax and the finish composition does not contain a wax extender.

[0052] Preferably, the plant-derived wax is candelilla wax. Candelilla wax is derived from the small leaves of the Candelilla shrub, which is native to northern Mexico and the southwestern United States. It is harvested by immersing the entire plant in acidified boiling water. The wax then floats to the surface of the boiling water.

[0053] As is known in the art, wax extenders are substances used in combination with waxes to improve the properties of the wax, for example by increasing the water repellency or wash resistance of the treated textile. Preferably, the wax extender is selected from carbamates, blocked isocyanates, and mixtures thereof. The wax extender is preferably a mixture of two or more carbamates, or a mixture of two or more blocked isocyanates. Suitable carbamates are described in WO2015191326A1 and are prepared by reacting:

[0054] - at least one isocyanate group-containing compound selected from isocyanates, diisocyanates, polyisocyanates or mixtures thereof; and

[0055] - at least one isocyanate-reactive compound of formula (IIa), (IIb) or (IIc):

[0056]

[0057]

[0058] Wherein in the formula:

[0059] Each R 5 independently -H; -R 6 ;-C(O)R 6 ;-(CH2CH2O) n (CH(CH3)CH2O) m R 7 ; or -(CH2CH2O) n (CH(CH3)CH2O) m C(O)R 6 ;

[0060] Each n is independently 0 to 20;

[0061] Each m is independently 0 to 20;

[0062] m+n is greater than 0;

[0063] Each R 6 is independently a linear or branched alkyl group having 5 to 29 carbons, optionally containing at least one unsaturated bond;

[0064] Each R 7 is independently -H, or a linear or branched alkyl group having 6 to 30 carbon atoms, optionally containing at least one unsaturated bond; provided that when the compound has formula (IIa), then R 5 or R 7 At least one of them is -H;

[0065] Each R 8 independently -H; -R 6 ;-C(O)R 6 ;

[0066] -(CH2CH2O) n` (CH(CH3)CH2O) m` R 7 ;

[0067] or -(CH2CH2O) n’ (CH(CH3)CH2O) m’ C(O)R 6 ;

[0068] Each R 9 independently -H, a linear or branched alkyl group having 6 to 30 carbon atoms, optionally containing at least one unsaturated bond; -(CH2CH2O) n` (CH(CH3)CH2O) m’ R 7 ; or -(CH2CH2O)n’ (CH(CH3)CH2O) m’ C(O)R 6 ;

[0069] each n' is independently 0 to 20;

[0070] Each m' is independently 0 to 20;

[0071] m'+n' is greater than 0; provided that when the compound has formula (IIb), at least one R 7 、R 8 or R 9 is -H;

[0072] and

[0073] Each R 10 -H, -C(O)R 6 or -CH2C[CH2OR 5 ]3; provided that when the compound has formula (IIc), at least one R 10 or R 5 is -H.

[0074] For the isocyanate-reactive compounds of formula (IIa), (IIb), or (IIc), -(CH2C2O)- represents an oxyethylene group (EO) and -(CH(CH3)CHO)- represents an oxypropylene group (PO). These compounds may contain only EO groups, only PO groups, or a mixture thereof. These compounds may also exist as triblock copolymers, for example, represented by PEG-PPG-PEG (polyethylene glycol-polypropylene glycol-polyethylene glycol).

[0075] In one embodiment, the carbamate is prepared by reacting:

[0076] - at least one isocyanate, diisocyanate, polyisocyanate or mixture thereof containing isocyanate groups; and

[0077] - a compound of formula (IIa). In one embodiment, at least one R 5 -C(O)R 6 or R 6 . At least one of the R 5 -H and at least one R 5 Selected from -C(O)R 6 Compounds of formula (IIa) are often referred to as alkyl sorbitans. These sorbitans may be -C(O)R 6 Known commercially available sorbitans such as SPAN include those ranging from those in which each R is H (unsubstituted) to those in which each R is -C(O)R6 A mixture of various sorbitans of (fully substituted) sorbitan; wherein R 6 is a linear or branched alkyl group having 5 to 29 carbon atoms; and mixtures of various substituents thereof. Commercially available sorbitan may also contain a certain amount of sorbitol, isosorbide or other intermediates or by-products.

[0078] In a preferred embodiment, at least one R 5 -C(O)R 6 , and R 6 is a linear or branched alkyl group having 5-29 carbon atoms, more preferably 7-21 carbon atoms, and most preferably 11-21 carbon atoms. Preferred compounds include mono-, di-, and tri-substituted sorbitans derived from caprylic acid, capric acid, lauric acid, myristic acid, palmitic acid, stearic acid, arachidic acid, behenic acid, lignoceric acid, and mixtures thereof. Particularly preferred compounds include mono-, di-, and tri-substituted sorbitan stearates or sorbitan behenates.

[0079] Optionally, R 6 is a linear or branched alkyl group having 5 to 29 carbon atoms and containing at least one unsaturated bond. 5 Selected from -C(O)R 6 And R 6 Examples of compounds of formula (IIa) containing at least one unsaturated bond include, but are not limited to, sorbitan trioleate (ie, wherein R 6 -C7H 14 CH=CHC8H 17 Other examples include, but are not limited to, mono-, di-, and tri-substituted sorbitans derived from palmitoleic acid, linoleic acid, arachidonic acid, and erucic acid.

[0080] In one embodiment, a compound of formula (IIa) is used, wherein at least one R 5 -(CH2CH2O) n (CH(CH3)CH2O) m R 7 or -(CH2CH2O) n (CH(CH3)CH2O) m C(O)R 6 . At least one of the R 5 is -(CH2CH2O) n (CH(CH3)CH2O) m R 7 or -(CH2CH2O) n (CH(CH3)CH2O) m C(O)R6 Compounds of formula (IIa) wherein each m is independently 0 to 20, each n is independently 0 to 20 and n+m is greater than 0 are known as polysorbates and are commercially available under the trade name TWEEN. These polysorbates can be substituted with an alkyl group R 6 or R 7 Monosubstituted, disubstituted or trisubstituted. Known commercially available polysorbates include those ranging from 7 H (unsubstituted) to each R 6 is a mixture of various polysorbates of polysorbates having linear or branched alkyl groups (fully substituted) with 5-29 carbon atoms; and mixtures of various substituents thereof. Examples of compounds of formula (IIa) include polysorbates such as polysorbate tristearate and polysorbate monostearate. wherein m+n is greater than 0 and wherein R 6 Examples of compounds of formula (IIa) containing at least one unsaturated bond include, but are not limited to, polysorbate trioleate (wherein R 6 C7H 14 CH=CHC8H 17 ), and is commercially sold under the name Polysorbate 80. The reagent may include a 5 、R 6 and R 7 A mixture of compounds having a value of and may also include compounds wherein R 6 Compounds containing at least one unsaturated bond and wherein R 6 A mixture of completely saturated compounds.

[0081] In another embodiment, compounds of formula (IIb) are used, also known as alkyl citrates. These citrates can be substituted with alkyl R 6 or R 7 The commercially available citric acid esters include various citric acid esters and citric acid esters wherein R 8 and each R 9 The citric acid form of -H to which each R 9 A mixture of citric acid esters having a linear or branched alkyl group with 6 to 30 carbon atoms and optionally containing at least one unsaturated bond, and mixtures of various substituents thereof. 6 、R 7 、R 8 、R 9 A mixture of citric acid esters having a value of 6 Compounds containing at least one unsaturated bond and wherein R 6Mixtures of fully saturated compounds. Alkyl citrates are also commercially available where m'+n' is greater than 0 and R 9 -(CH2CH2O) n’ (CH(CH3)CH2O) m’ R 7 or -(CH2CH2O) n’ (CH(CH3)CH2O) m’ C(O)R 6 , and from which R 8 and each R 7 For H to each R 6 and / or R 7 Various substitutions exist for linear or branched alkyl groups having 5 to 30 carbon atoms and optionally containing at least one unsaturated bond. Examples of compounds of formula (IIb) include, but are not limited to, trialkyl citrates.

[0082] In another embodiment, compounds of formula (IIc) are used, which are known as pentaerythritol esters. These pentaerythritol esters may be substituted with an alkyl radical R 6 or R 7 The preferred compound of formula (IIc) is dipentaerythritol ester, wherein R 10 -CH2C[CH20R 5 ]3. Known commercially available pentaerythritol esters include those wherein R 10 and each R 5 For -H to each R 5 -C(O)R 6 And R 6 A mixture of various pentaerythritol esters of pentaerythritol esters having a linear or branched alkyl group with 5 to 29 carbon atoms and optionally containing at least one unsaturated bond; and mixtures of various substituents thereof. The pentaerythritol ester may also contain a pentaerythritol ester having a linear or branched alkyl group with 5 to 29 carbon atoms and optionally containing at least one unsaturated bond; 5 The pentaerythritol ester may also contain compounds with specific R 5 A compound of a mixture of different chain lengths, or wherein R 6 Compounds containing at least one unsaturated bond and wherein R 6 A mixture of completely saturated compounds.

[0083] The compounds of formula (IIa), (IIb) and (IIc) can all be bio-derived. "Biosuccessfully derived" means that at least 10% of the material can be produced from non-crude oil sources such as plants, other vegetation, and animal fats. In one embodiment, the compounds of formula (IIa), (IIb) and (IIc) are about 10% to 100% bio-based. In one embodiment, the compounds of formula (IIa), (IIb) and (IIc) are about 35% to 100% bio-based. In one embodiment, the compounds of formula (IIa), (IIb) and (IIc) are about 50% to 100% bio-based. In one embodiment, the compounds of formula (IIa), (IIb) and (IIc) are about 75% to 100% bio-based. In one embodiment, the compounds of formula (IIa), (IIb) and (IIc) are 100% bio-based. At least one R of each of formula (IIa), (IIb) and (IIc) 5 、R 8 、R 9 、R 10 is -H to allow reactivity with isocyanate groups.

[0084] To make the urethane wax extender, a compound of formula (IIa), (IIb) or (IIc) or a mixture thereof is reacted with an isocyanate, diisocyanate, polyisocyanate or mixture thereof containing isocyanate groups. The term "polyisocyanate" is defined as a difunctional or higher functional isocyanate, and the term includes oligomers. Any monoisocyanate or polyisocyanate having predominantly two or more isocyanate groups or any isocyanate precursor of a polyisocyanate having predominantly two or more isocyanate groups is suitable for use in preparing the urethane extender. For example, hexamethylene diisocyanate homopolymer is suitable for use herein and is commercially available. It will be appreciated that small amounts of diisocyanate may remain in products having multiple isocyanate groups.

[0085] Isocyanurate trimers derived from hydrocarbon diisocyanates are also suitable for use as polyisocyanate reactants. DESMODUR N-100 (based on hexamethylene diisocyanate, available from Bayer Corporation, Pittsburgh, Pennsylvania) is preferred. Other suitable triisocyanates are those obtained by reacting three moles of toluene diisocyanate. Isocyanurate trimers of toluene diisocyanate and isocyanurate trimers of 3-isocyanatomethyl-3,4,4-trimethylcyclohexyl isocyanate are other examples of triisocyanates useful for the purposes of the present invention, as is methane-tris-(phenyl isocyanate). Precursors of polyisocyanates such as diisocyanates are also suitable for use as substrates for the polyisocyanates in the present invention. Also suitable are DESMODUR N-3300, DESMODUR N-3600, DESMODUR Z-4470, DESMODUR H, DESMODUR N3790, and DESMODUR XP2410 from Bayer Corporation of Pittsburgh, Pennsylvania, and bis-(4-isocyanatocyclohexyl)methane.

[0086] Preferred polyisocyanate reactants are aliphatic / aromatic polyisocyanates containing biuret structures, or polydimethylsiloxanes containing isocyanates. Such polyisocyanates may also contain both aliphatic and aromatic substituents.

[0087] Particularly preferred as (poly)isocyanate reactants are commercially available hexamethylene diisocyanate homopolymers, such as DESMODUR N-100, DESMODURN-75 and DESMODUR N-3200 from Bayer Corporation of Pittsburgh, Pennsylvania; 3-isocyanatomethyl-3,4,4-trimethylcyclohexyl isocyanate, available, for example, as DESMODUR I (Bayer Corporation); bis-(4-isocyanatocyclohexyl)methane, available, for example, as DESMODUR W (Bayer Corporation); and diisocyanate trimers of the formulae (IIIa), (IIIb), (IIIc), (IIId) and (IIIe):

[0088]

[0089]

[0090] Diisocyanate trimers (IIIa-e) are available, for example, as DESMODUR Z4470, DESMODUR IL, DESMODUR N-3300 and DESMODUR XP 2410 and DESMODUR N100, respectively, from Bayer Corporation.

[0091] In a preferred embodiment, the wax extender is a blocked isocyanate, preferably selected from the group consisting of blocked isocyanates having a molecular weight of less than 2000 g / mol. Blocked isocyanates are well known in the art and are commercially available. Suitable blocked isocyanates are based on isocyanate chemistry, in which a polyfunctional isocyanate has been reacted with a blocking agent, as described below, to produce a product that is inert at room temperature and lacks isocyanate functionality. Isocyanate functionality can be restored by heating the blocked isocyanate to above its activation temperature, at which point the blocking effect is released and the isocyanate groups become available to react with suitable functional groups. During the textile finishing process, increasing the surface temperature of the textile can trigger this activation and subsequent crosslinking reactions within the polymer produced after activation and between the polymer produced after activation and the fiber surface in the textile.

[0092] Blocking agents for isocyanates are known per se and include organic compounds having at least one active hydrogen; they can be selected by a person skilled in the art. Advantageously, the blocking agent is selected from compounds such as alcohols, lactams, phenols, oximes and pyrazoles. The blocking agent can also be selected from plant-based phenolic compounds to provide a system with an increased biocarbon content and a higher degree of sustainability. This type of blocking agent includes cardanol (3-pentadeca-dienylphenol), which can be derived from cashew nut shell liquid.

[0093] Advantageously, the isocyanate is selected from the class of aliphatic isocyanates including hexamethylene diisocyanate, isophorone diisocyanate, trimethylhexamethylene diisocyanate, hydrogenated diphenylmethane diisocyanate. Thus, in a preferred embodiment, the wax extender is an aliphatic blocked isocyanate, preferably selected from the group consisting of aliphatic blocked isocyanates having a molecular weight below 2000 g / mol.

[0094] The blocked isocyanates described herein are preferably obtained by reacting an isocyanate, preferably an isocyanate selected from aliphatic isocyanates (having a molecular weight below 2000 g / mol), with a reagent selected from alcohols, lactams, phenols, oximes and pyrazoles, preferably 3,5-dimethylpyrazole.

[0095] Commercial examples of suitable blocked isocyanates include: blocked isocyanate TTL (available from Beyond Surface Technologies AG), blocked isocyanates EXT-SYN 1.0 (for synthetic fibers) and EXT-CEL 1.0 (for cellulosic fibers) (available from Beyond Surface Technologies AG), Baygard EDW and Baygard FBI (available from Tanatex). The blocked isocyanates are generally insoluble in water and are typically supplied as dispersions in water.

[0096] In another alternative textile finishing composition suitable for use in the methods described and claimed herein, the finishing agent is an esterquat, and the composition comprises:

[0097] iii-3) from about 4.0% to about 7.5% by weight of the esterquat. This textile finishing composition is particularly suitable for providing long-term softness and improved wicking properties to treated textiles (i.e., maintaining softness / wicking properties after multiple washes, such as for fashion apparel). As known to those skilled in the art, an "esterquat" refers to a quaternary ammonium salt of an alkanolamine and / or alkylamine esterified with an average of two fatty acid molecules per molecule. In the compositions described and claimed herein, the esterquat is preferably a compound of formula (I):

[0098]

[0099] in:

[0100] RC(O) represents the residue of a fatty acid having from about 12 to about 24, preferably from about 14 to about 22, more preferably from about 16 to 20 carbon atoms;

[0101] R 1 is an alkyl group of 1 to 4 carbon atoms;

[0102] R 2 is an alkyl group of 1 to 4 carbon atoms or a hydroxyalkyl group of 1 to 4 carbon atoms;

[0103] -L- is an alkylene group of 1 to 4 carbon atoms; and X- is a salt-forming anion. The salt-forming anion X- makes the esterquat compound soluble or dispersible in water and is preferably selected from halogen anions such as chloride, bromide or iodide; sulfate, methylsulfate, nitrite, nitrate, phosphate and carboxylate such as acetate, adipate, propionate. Examples of suitable commercially available esterquats include, but are not limited to, bis-(isopropyl oleate) dimethylammonium methylsulfate (supplier: Evonik; trade name: CR 3099).

[0104] The textile finishing compositions described herein contain from about 10.0% to about 30.0% by weight, preferably from about 15.0% to about 30.0% by weight, of 1,2,3-propanetriol. The 1,2,3-propanetriol used is preferably of plant origin, such as from soybean oil, coconut oil, palm oil, or corn oil. The specified amount of 1,2,3-propanetriol ensures that the composition is stable over its shelf life (at least 12 months) and can be jetted using piezoelectric drop-on-demand inkjet printing.

[0105] In addition, the textile finishing compositions described herein comprise from about 0.05% to about 10.0% by weight of a surfactant. The term "surfactant" is known in the art. It particularly includes compounds that reduce surface tension and / or improve dispersion properties. Those skilled in the art will be able to identify surfactants suitable for use in compositions printable by piezoelectric drop-on-demand inkjet printing. The term includes cationic, anionic, nonionic, and zwitterionic surfactants. Preferably, the surfactant is biodegradable and / or obtained from renewable raw materials. Examples of suitable commercially available surfactants include, but are not limited to, rhamnolipids (e.g., biosurfactants commercially available from Evonik). RL 100), sophorolipids (e.g., biosurfactants commercially available from Evonik SL ONE), sorbitan monooleate (available from Sigma Aldrich under the trade name 80 commercially available), polyethylene glycol sorbitan monooleate (available, for example, from Sigma Aldrich under the trade name 80 commercially available), sodium dioctylsulfosuccinate, ethoxylated 2,4,7,9-tetramethyl-5-decyne-4,7-diol, and mixtures thereof (commercially available, for example, from Evonik PSA 336, which is a blend of sodium dioctylsulfosuccinate and ethoxylated 2,4,7,9-tetramethyl-5-decyne-4,7-diol).

[0106] The textile finishing composition may be a piezoelectric drop-on-demand inkjet-printable water-repellent finishing composition comprising, preferably consisting of:

[0107] i) from about 20.0% to about 30.0% by weight of 1,2,3-propanetriol, preferably of plant origin;

[0108] ii) from about 0.2% to about 1.0% by weight of a surfactant as described herein;

[0109] iii-2) from about 6.5% to about 10% by weight of a plant-derived wax or beeswax as described herein, and from about 1.5% to about 4.5% by weight of a wax extender as described herein, preferably a blocked isocyanate as described herein, more preferably an aliphatic blocked isocyanate as described herein;

[0110] iv) optionally, a thickener as described herein and / or a biocide as described herein and / or a pH adjuster as described herein; and

[0111] v) Water, made up to 100% by weight.

[0112] The water repellent finishing composition exhibits excellent water repellency, storage stability and wash resistance. The water repellent composition preferably comprises from about 0.2 wt% to about 1.0 wt% of a thickener, such as carob gum (also known as locust bean gum or carob gum, which contains at least 75% galactomannan). Preferably, the plant-derived wax is candelilla wax and / or the wax extender is a blocked isocyanate, such as an aliphatic blocked isocyanate having a molecular weight of less than 2000 g / mol, and / or the surfactant is PSA 336.

[0113] Another textile finishing composition suitable for use in the methods described and claimed herein comprises, and preferably consists of:

[0114] i) from about 12.0% to about 20.0% by weight of 1,2,3-propanetriol, preferably of plant origin;

[0115] ii) from about 0.5% to about 2.5% by weight of a surfactant as described herein;

[0116] iii-3) from about 4.0 wt. % to about 7.5 wt. % of an esterquat as described herein, wherein preferably, the esterquat is a compound of formula (I):

[0117]

[0118] in:

[0119] RC(O) represents the residue of a fatty acid having from about 12 to about 24, preferably from about 14 to about 22, more preferably from about 16 to 20 carbon atoms;

[0120] R 1 is an alkyl group of 1 to 4 carbon atoms;

[0121] R 2 is an alkyl group of 1 to 4 carbon atoms or a hydroxyalkyl group of 1 to 4 carbon atoms;

[0122] -L- is an alkylene group of 1 to 4 carbon atoms; and

[0123] X- is a salt-forming anion;

[0124] iv) optionally, a thickener as described herein and / or a biocide as described herein and / or a pH adjuster as described herein; and

[0125] v) Water, made up to 100% by weight.

[0126] The combination of specific amounts of 1,2,3-propanetriol, surfactant and ester quaternary ammonium compound provides softness, improved wicking properties and wash durability to textiles, and imparts stability to the textile finishing composition under storage conditions. In the present finishing composition, preferably:

[0127] The surfactant is selected from 80. 80. PSA 336 and mixtures thereof; and / or

[0128] The esterquat is bis-(isopropyl oleate) dimethylammonium methylsulfate (supplier: Evonik; trade name: CR 3099); and / or

[0129] The composition comprises from about 0.05% to about 2.00%, preferably from about 0.05% to about 1.00%, more preferably from about 0.05% to about 0.5% of a pH adjuster, such as citric acid or acetic acid; and / or

[0130] The composition does not contain thickeners.

[0131] Another textile finishing composition suitable for use in the method of the present invention comprises:

[0132] i) from about 15.0% to about 30.0% by weight of 1,2,3-propanetriol, preferably of plant origin;

[0133] ii) from about 0.05% to about 10.0% by weight of a surfactant as described herein;

[0134] iii-1) from about 1.0% to about 6.0% by weight of an oil of a plant origin as described herein;

[0135] iv) optionally, a thickener as described herein and / or a biocide as described herein and / or a pH adjuster as described herein; and

[0136] v) water, to 100% by weight. The finishing composition provides improved softness and / or wicking properties to textiles, is stable under storage conditions and is wash-resistant. The finishing composition may be a textile softening composition, which preferably comprises:

[0137] i) from about 17.0% to about 30.0% by weight of 1,2,3-propanetriol, preferably of plant origin;

[0138] ii) from about 0.05% to about 0.8% by weight of a surfactant as described herein;

[0139] iii-1) from about 1.0% to about 3.0% by weight of an oil of a plant origin as described herein;

[0140] iv) optionally, a thickener as described herein and / or a biocide as described herein and / or a pH adjuster as described herein; and

[0141] v) water, to make up to 100 wt%. In the present textile softening composition, further preferably:

[0142] the oil of vegetable origin is hydrogenated rapeseed oil; and / or

[0143] The surfactant is PSA 336; and / or

[0144] the composition comprises from about 0.1% to about 0.6% by weight of a thickening agent, such as carob (also known as locust bean gum or carob gum, which comprises at least 75% galactomannans); and / or

[0145] • The composition comprises from about 0.05 wt% to about 2.00 wt%, preferably from about 0.05 wt% to about 1.00 wt%, more preferably from about 0.05 wt% to about 0.5 wt% of a pH adjuster, such as citric acid or acetic acid.

[0146] The textile finishing composition may be a composition for improving the wicking properties of textiles, which preferably comprises:

[0147] i) from about 15.0% to about 25.0% by weight of 1,2,3-propanetriol, preferably of plant origin;

[0148] ii) from about 4.5% to about 10.0% by weight of a surfactant as described herein;

[0149] iii-1) from about 2.0% to about 6.0% by weight of an oil of a plant origin as described herein;

[0150] iv) optionally, a thickener as described herein and / or a biocide as described herein and / or a pH adjuster as described herein; and

[0151] v) water, supplemented to 100 wt%. In the present composition, further preferably:

[0152] The plant-derived oil is selected from linseed oil, algae oil, and mixtures thereof; and / or

[0153] The surfactant is selected from 80. 80. PSA 336 and mixtures thereof; and / or

[0154] The composition comprises from about 0.1% to about 1.0%, preferably from about 0.1% to about 0.5%, by weight of a thickening agent, such as carob (also known as locust bean gum or carob gum, which comprises at least 75% galactomannans).

[0155] According to a second aspect of the present invention, a finished textile obtained by the method of the invention as described and claimed herein is directed. The low droplet volume ejected by the piezoelectric drop-on-demand inkjet print head and the resulting precise deposition, combined with the drying and fixing steps, provide a textile having a uniform (constant wet deposit over the entire treated surface of the textile) and wash-resistant finish.

[0156] A third aspect according to the present invention relates to a garment comprising the finished textile as described and claimed herein. DETAILED DESCRIPTION

[0157] To further illustrate the present invention, the following is provided: Example These examples are provided without intending to limit the scope of the present invention.

[0158] RT: 20℃-25℃;

[0159] I. Preparation of Textile Finishing Compositions

[0160] The following textile finishing compositions were prepared as follows:

[0161] Example 1: Water-repellent finishing composition

[0162] A 1000 kg batch of a textile water repellent finishing composition having the composition shown in the following table was prepared as follows:

[0163] In the first step, an emulsion was obtained by introducing the following ingredients in a high energy dispenser (capacity 2000 L) and stirring at the specified speed and temperature for the specified period of time:

[0164] 1) Plant 1,2,3-propanetriol (107.28 kg) - stirred at 2 m / s and RT for about 30 minutes;

[0165] 2) Candelilla wax (86.4 kg) - stirred at 5 m / s and RT for about 90 minutes;

[0166] 3) Candelilla wax extender (21.6 kg) - stirred at 5 m / s and RT for about 90 minutes;

[0167] 4) Proxel TM GXL (0.72 kg) - stirred at 5 m / s and RT for about 15 minutes;

[0168] 5) Water (504 kg) - stirred at 5 m / s and RT for about 45 minutes.

[0169] In the second step, the following ingredients were gradually added to the emulsion obtained in the first step and stirring was continued for the specified time to provide a textile finishing composition printable by piezoelectric inkjet.

[0170] 1) Plant 1,2,3-propanetriol (150 kg) - stirred at 5 m / s and RT for about 30 minutes;

[0171] 2) Carob bean gum thickener, 20 wt% dispersion in water (20 kg) - stirred at 5 m / s and RT for about 45 minutes;

[0172] 3) Proxel TM GXL (1 kg) - stirred at 10 m / s and RT for about 30 minutes;

[0173] 4) PSA 336 (5 kg) - stirred at 10 m / s and RT for about 30 minutes;

[0174] 5) Water (104 kg) - stirred at 10 m / s and RT for about 60 minutes;

[0175]

[0176] Example 2: Textile softening finishing composition

[0177] 1000 kg batches of textile softening compositions having the composition shown in the following table were prepared as follows:

[0178] In the first step, an emulsion was obtained by introducing the following ingredients in a high energy dispenser (capacity 2000 L) and stirring at the specified speed and temperature for the specified period of time:

[0179] 1) Plant 1,2,3-propanetriol (86.4 kg) - stirred at 2 m / s and RT for about 30 minutes;

[0180] 2) Citric acid (1.44 kg) - stirred at 2 m / s and RT for about 30 minutes;

[0181] 3) Carob gum thickener (1.44 kg) - stirred at 5 m / s and RT for about 45 minutes;

[0182] 4) Proxel TM GXL (0.72 kg) - stirred at 5 m / s and RT for about 30 minutes;

[0183] 5) Hydrogenated rapeseed oil (14.4 kg) - stirred at 5 m / s and RT for about 60 minutes;

[0184] 6) Water (615.6 kg) - stirred at 5 m / s and RT for about 45 minutes.

[0185] In the second step, the following ingredients were gradually added to the emulsion obtained in the first step and stirring was continued for the specified time to provide a textile finishing composition printable by piezoelectric inkjet.

[0186] 1) Plant 1,2,3-propanetriol (150 kg) - stirred at 5 m / s and RT for about 30 minutes;

[0187] 2) Carob gum thickener, 20 wt% dispersion in water (1 kg) - stirred at 5 m / s and RT for about 45 minutes;

[0188] 3) Proxel TM GXL (1 kg) - stirred at 5 m / s and RT for about 15 minutes;

[0189] 4) PSA 336 (5 kg) - stirred at 5 m / s and RT for about 15 minutes;

[0190] 5) Water (123 kg) - stirred at 10 m / s and RT for about 45 minutes.

[0191]

[0192] Example 3: Textile Finishing Composition for Improved Softening and Wicking Performance

[0193] 1000 kg batches of textile softening compositions having the composition shown in the following table were prepared as follows:

[0194] In the first step, an emulsion was obtained by introducing the following ingredients in a high energy dispenser (capacity 2000 L) and stirring at the specified speed and temperature for the specified period of time:

[0195] 1) CR 3099 (54.29 kg) - stirred at 2 m / s and RT for about 30 minutes;

[0196] 2) 80 (1.10 kg) - stirred at 2 m / s and RT for about 30 minutes;

[0197] 3) 80 (4.35 kg) - stirred at 2 m / s and RT for about 30 minutes;

[0198] 4) Water (490.30 kg) at a temperature of 35°C - stirred at 2 m / s and 35°C for about 60 minutes.

[0199] In the second step, the following ingredients were gradually added to the emulsion obtained in the first step and stirring was continued for the specified time to provide a textile finishing composition printable by piezoelectric inkjet.

[0200] 1) Plant 1,2,3-propanetriol (150 kg) - stirred at 5 m / s and RT for about 30 minutes;

[0201] 2) PSA 336 (5 kg) - stirred at 5 m / s and RT for about 10 minutes;

[0202] 3) Proxel TM GXL (1 kg) - stirred at 5 m / s and RT for about 10 minutes;

[0203] 4) Water (294 kg) - stirred at 10 m / s and RT for about 45 minutes.

[0204]

[0205] Example 4: Textile Finishing Composition for Improved Wicking Performance

[0206] 1000 kg batches of textile softening compositions having the composition shown in the following table were prepared as follows:

[0207] In the first step, an emulsion was obtained by introducing the following ingredients in a high energy dispenser (capacity 2000 L) and stirring at the specified speed and temperature for the specified period of time:

[0208] 1) Plant 1,2,3-propanetriol (62.62 kg) - stirred at 2 m / s and RT for about 15 minutes;

[0209] 2) BST-001 (6.18 kg) - stirred at 2 m / s and 45°C for about 20 minutes;

[0210] 3) BST-020 (35.02 kg) - stirred at 2 m / s and RT for about 15 minutes;

[0211] 4) 80 (15.70 kg) - stirred at 5 m / s rpm and RT for about 30 minutes;

[0212] 5) 80 (40.33 kg) - stirred at 5 m / s and RT for about 30 minutes;

[0213] 6) Water (664.14 kg) - stirred at 10 m / s and RT for about 90 minutes.

[0214] In the second step, the following ingredients were gradually added to the emulsion obtained in the first step and stirring was continued for the specified time to provide a textile finishing composition printable by piezoelectric inkjet.

[0215] 1) Plant 1,2,3-propanetriol (150 kg) - stirred at 5 m / s and RT for about 15 minutes;

[0216] 2) Carob bean gum thickener, 20 wt% dispersion in water (20 kg) - stirred at 5 m / s and RT for about 45 minutes;

[0217] 3) Proxel TM GXL (1 kg) - stirred at 5 m / s and RT for about 10 minutes;

[0218] 4) PSA 336 (5 kg) - stirred at 5 m / s and RT for about 30 minutes.

[0219]

[0220] II. Manufacturing Textiles Using the Textile Finishing Method According to the Invention

[0221] The finishing process was carried out using a commercially available industrial textile printing press Panthera D8 (supplier: SwissPerformance Chemicals) followed by a calender roll-to-roll (model RTR-2760-H, supplier: Eastsign).The Panthera D8 printer was equipped with 8 water-based Kyocera KJ4B-0300, DOD IJ piezoelectric print heads.

[0222] 1. Manufacturing of textiles with improved wicking properties

[0223] The surfaces of white textile (label: W-2017-992; 100% PES; knitted) and pink textile (label: W-2017-993; 100% PES, knitted) were printed by piezoelectric drop-on-demand inkjet printing (printing resolution 600x600 dpi, 2 passes; printing speed 250 m 2 / h; wet deposition: 15g / m 2 ) The textile finishing composition according to Example 4. The printed textile was dried by exposure to hot air (120° C.) for 90 seconds. Subsequently, the dried textile was calendered at 205° C. and an average pressure of 3 bar for 35 seconds to provide finished textiles T1 and T2 according to the present invention (T1 - white, T2 - pink).

[0224] For comparison purposes,

[0225] - Samples of white and pink textiles were printed as described above. To dry and fix the finishing composition on the textile, the printed textiles were kept in an oven at 100° C. for 1 minute. Comparative finished textiles C1 and C2 were obtained (C1 - white, C2 - pink);

[0226] - a white textile sample (this sample was not treated with the finishing composition) was finished by drying in an oven at 100° C. for 1 minute to provide comparative textile C3;

[0227] A white textile sample was finished using a standard finishing composition for improving the wicking properties of textiles, the finishing process comprising a padding step, a drying step with exposure to IR and a fixing step using a high temperature fixing frame. Comparative sample C4 was obtained.

[0228] The wicking properties of the finished textiles T1, T2, C1-C4 were evaluated in the water drop test method AATCC 79, where the absorption time in seconds was measured before washing and after 1, 5 and 10 washes (washing test ISO 5077 / 3759 / 6330; detergent ECE 98-20 g).

[0229] The water drop test method AATTCC79 (also known as the absorption time-drip test) is commonly used in the textile industry to measure the absorption time of a textile fabric for a water drop. To measure the absorption time, the textile fabric is held on a mandrel and a water droplet (0.1 mL) is deposited on the fabric surface using a micropipette. The time required for the textile fabric to absorb the droplet (absorption time) is measured. The absorption time is an indicator of the wicking performance of the textile fabric.

[0230] The following table shows the measured absorption times in seconds:

[0231]

[0232] Compared to the treated textile fabric C4, which was treated by padding with a standard padding composition, the two treated textile fabrics T1 and T2 according to the invention had better wicking properties and wash durability (absorption times of less than 1 second even after 10 washes). The comparable performance of the treated textile fabrics T1 and T2 demonstrates the versatility of the textile finishing composition and the textile finishing method. A comparison of the absorption times measured for the treated textiles C1 and C2 and the treated textiles T1 and T2 shows that the calendering step is essential for fixing the finishing composition to the textile fabric. The comparative treated textile C3, which was not printed with the textile finishing composition, had poor wicking properties, as evidenced by an absorption time of greater than 30 seconds.

[0233] 2. Manufacturing of textiles with improved wicking properties

[0234] The following three different textile fabrics were printed on the surface by piezoelectric drop-on-demand inkjet printing (printing resolution 600x600 dpi, 2 passes; printing speed 250 m / s) 2 / h; wet deposition: 15g / m 2 ) The textile finishing composition according to Example 3. The printed textile was dried by exposure to hot air (120° C.) for 90 seconds. Subsequently, the dried textile was calendered at 205° C. and an average pressure of 3 bar for 35 seconds to provide finished textiles T3-T5 (T3 - finished first fabric, T4 - finished second fabric, T5 - finished third fabric).

[0235] Fabric 1 <![CDATA[Single-sided Jersey, 245 g / m 2 > 87% cotton and 13% spandex Fabric 2 <![CDATA[Single-sided plating jersey, 140g / m 2 > 61% cotton and 39% polyester Fabric 3 <![CDATA[Single-sided Josai, 125 g / m 2 > 60% cotton and 40% polyester

[0236] The wicking properties of the finished textiles T4-T5 were evaluated according to the above-mentioned water drop test method AATCC 79 and the test method for vertical wicking rate of textiles AATCC 197 (performance was measured at 30 minutes).

[0237] Test method AATCC 197 is commonly used in the textile industry to evaluate the ability of a fabric sample to vertically transport liquid when the cut edge is immersed. The vertical wicking rate determined represents a measure of the wicking performance of the textile. The cut edges of finished textile T3-T5 samples (14.0 x 2.5 cm) are immersed in water for 30 minutes. The samples are immersed in both the warp and weft directions. The height of the water absorbed by the sample after 30 minutes (wicking distance) is measured. A wicking distance of more than 13 cm at 30 minutes indicates that the textile fabric has excellent absorbency and wicking properties.

[0238] The test results are summarized in the following table:

[0239]

[0240] Finished textile fabrics T3-T5 according to the present invention exhibited excellent absorbency (AATCC 79, absorption time <1 second). Finished textile fabrics T3-T5 also exhibited excellent wicking properties (AATCC 197) and met the absorbency requirement of a wicking height of at least 13 cm at 30 minutes. Tests conducted in both the warp and weft directions of the fabrics showed that the finished textile fabrics according to the present invention had excellent wicking properties. The wicking properties of the three tested textile fabrics were comparable, demonstrating the versatility of the textile finishing composition and finishing method.

[0241] 3. Manufacturing of textiles with soft properties

[0242] In a variety of textile fabrics (including density 160g / m 2 100% cotton twill fabric and density is 110g / m 2 The surface of 70% cotton / 30% polyester blended garment fabric (fabric garment blend) was printed by piezoelectric drop-on-demand inkjet printing (printing resolution 600x600dpi, 2 passes; printing speed 250m 2 / h; wet deposition: 15g / m 2 ) The textile finishing composition according to Example 2. The printed textile fabric was dried by exposure to hot air (120° C.) for 90 seconds and subsequently calendered at 205° C. and an average pressure of 3 bar for 35 seconds to provide a finished textile.

[0243] After finishing, the softness of the treated textiles was evaluated by hand by experts before washing and after 5, 10, and 20 washes. Compared to untreated textiles, the treated textiles showed superior softness. The softness was maintained after 5, 10, and 20 washes.

[0244] 4. Manufacture of water-repellent textiles

[0245] The following three different textile fabrics were printed on the surface by piezoelectric drop-on-demand inkjet printing (printing resolution 600x600 dpi, 2 passes; printing speed 250 m / s) 2 / h; wet deposition: 15g / m 2) The textile finishing composition according to Example 1. The printed textile was dried by exposure to hot air (120° C.) for 1 minute. Subsequently, the dried textile was calendered at 205° C. for 3 minutes to provide finished textiles T6-T8 according to the present invention (T6 - finished textile fabric A, T7 - ​​finished textile fabric B, T8 - finished textile fabric C).

[0246] Textile fabrics color composition <![CDATA[Density g / m 2 > A Light gray 88% Polyamide / 12% Elastane Woven 180 B Khaki 72% Polyamide / 20% Wool / 8% Elastane Woven 200 C Medium gray 94% Polyamide / 6% Elastane Woven 180

[0247] The water repellency of treated textiles T6-T8 and corresponding untreated textiles AC was evaluated using a commercially available spray rating tester TF160 (supplier: Testex) according to AATCC test method 22. Three samples of each of textile fabrics A, B, and C were evaluated. During the experiment, a sample of the treated fabric held in a mandrel was sprayed with water. The sample was oriented at 45° relative to the nozzle head of the spray rating tester and was located at a distance of 150 mm below the nozzle. At the end of the experiment, the experts compared the appearance of the sprayed treated fabric with the appearance of the treated fabric (unsprayed) and visually rated the treated fabrics according to visual criteria. A visual rating of 100 indicates that the textile fabric retained its initial appearance (i.e., there was no visually detectable difference between the appearance of the textile fabric before and after spraying) and that the textile fabric did not absorb water during the experiment, i.e., the textile fabric had excellent water repellency.

[0248] The results of the visual ratings are summarized in the following table:

[0249]

[0250]

[0251] As shown in the table above, the finished textiles according to the present invention provided excellent water repellency, even after 20 washes. A rating of "100" indicates that the tested fabric absorbed no water. The water repellency did not decrease after 1 wash, 5 washes, 10 washes, and 20 washes, demonstrating the excellent wash durability of the finish achieved using the finishing method of the present invention. Comparable results were achieved for the three fabrics, demonstrating the versatility of the water repellent finishing composition and finishing method according to the present invention.

[0252] 5. Evaluation of the reliability of the finishing method

[0253] The reliability of the textile finishing compositions and textile finishing methods according to Examples 1 to 4 was tested on a piezoelectric drop-on-demand inkjet printer Panthera S4 (supplier: Swiss Performance Chemicals) equipped with 4 water-based DOD IJ Piezo Kyocera KJ4B-0300 print heads and a pressure-sensitive drop-on-demand inkjet printer Panthera D8 (supplier: Swiss Performance Chemicals) equipped with 8 water-based DOD-IJ Piezo Kyocera KJ4B-0300 print heads.

[0254] To visualize the print quality, magenta sublimation ink (SwissJet SP7, from SwissPerfomance Chemicals, Switzerland) was added to each of the textile finishing compositions according to Examples 1 to 4 (99 wt% textile finishing composition; 1 wt% magenta sublimation ink).

[0255] The finishing composition thus obtained was 240 m 2 / h bidirectional printing on white textile fabric (Natté 2 / 1, 100% PES, 218g / m 2 ) without using the automatic cleaning program. Textiles of different lengths (20m, 100m, 200m and 500m) were printed and the print quality was visually inspected. A preliminary test was performed before printing each required length (20m, 100m, 200m and 500m) to check that all nozzles were properly jetting, and after printing each required length to check for potential nozzle blockages.

[0256] After the finishing composition had been in the press for 3 days, the printing process summarized above was repeated.

[0257] After exposure to hot air (120° C.) for 90 seconds and subsequent calendering at 205° C. and an average pressure of 3 bar for 35 seconds, the printed textile was tested. No errors were detected on the printed textile. Furthermore, no nozzle clogging occurred.

[0258] 6. Evaluation of drying temperature

[0259] In white textile fabric (Natté 2 / 1, 100% PES, 218g / m 2 ) on the surface of the substrate by piezoelectric drop-on-demand inkjet printing (Panthera D8, printing speed 240m 2 / h; wet deposition: 20g / m 2) The textile finishing composition according to Example 4 was then dried by exposure to hot air at different temperatures for 90 seconds. The residual water content was determined. The results are shown in the following table.

[0260]

[0261] Complete evaporation of the water contained in the finishing composition was confirmed by a residual water content of less than 0.2% achieved by exposure to a hot air temperature of 120-140°C (90 seconds) for 90 seconds. The use of hot air temperatures below 120°C would require longer drying times to achieve the same level of dryness.

[0262] 7. Evaluation of calendering temperature

[0263] In order to evaluate the effect of calendering temperature on the properties of the finished textiles, the textile finishing composition according to Example 4 was printed by piezoelectric drop-on-demand inkjet printing (Panthera D8, printing speed 240 m / s). 2 / h; wet deposition: 20g / m 2 ) in white textile fabric (Natté 2 / 1, 100% PES, 218 g / m 2 ) were dried by exposure to hot air (120° C.) for 90 seconds, followed by calendering for 20 seconds at various temperatures and an average pressure of 3 bar to provide finished textiles T9-T11 according to the present invention and textiles C5 and C6 for comparative purposes. The wicking properties of the finished textiles were evaluated using the AATCC 79 test method described above. The measured absorption times are shown in the table below.

[0264] Finished textiles Calendering temperature Absorption time (seconds) measured according to AATCC 79 C5 140℃ 2.45 C6 160℃ 1.83 T9 180℃ 1.15 T10 200℃ <1 T11 210℃ <1

[0265] Finished textiles T9-T11 finished by the finishing method according to the present invention showed better properties than textiles C5 and C6 which were subjected to calendering steps at 140°C and 160°C, respectively.

Claims

1. A method for finishing textiles, comprising, preferably consisting of, the following steps: a) providing a continuous supply of preferably colored textiles; b) piezoelectric drop-on-demand inkjet printing one or more textile finishing compositions onto the side of the textile provided in step a) or onto one or more areas of the side of the textile provided in step a), wherein each of the textile finishing compositions is pigment-free and dye-free; c) drying the textile obtained in step b) by exposing to air at a temperature of about 120° C. to about 140° C. to provide a dried textile; and d) calendering the dried textile obtained in step c) at a temperature of about 180° C. to about 220° C. for at least 10 seconds to provide a finished textile.

2. The textile finishing method according to claim 1, wherein steps a), b), c) and d) are performed continuously.

3. The textile finishing method according to claim 1 or 2, wherein in step b), 10 g / m 2 Up to 30g / m 2 , preferably 10g / m 2 Up to 25g / m 2 The wet deposit is deposited on the face of the textile, or on one or more areas of the face of the textile.

4. The textile finishing method according to any one of claims 1 to 3, wherein in step b), at least two, preferably at least three, more preferably at least four textile finishing compositions are applied using a single piezoelectric drop-on-demand inkjet print head.

5. The textile finishing method according to claim 4, wherein in step b) a different wet deposit is printed for each of the at least two, preferably at least three, more preferably at least four textile finishing compositions.

6. The textile finishing method according to any one of claims 1 to 5, wherein in step c), the textile is dried for less than 3 minutes, preferably less than 2 minutes.

7. The textile finishing method according to any one of claims 1 to 6, wherein in step d), the dried textile is calendered for less than 60 seconds.

8. The textile finishing method according to any one of claims 1 to 7, wherein the one or more finishing compositions are selected from water repellent finishing compositions, softening compositions, flame retardant treatment compositions, antimicrobial treatment compositions, anti-wrinkle treatment compositions, UV enhancing finishing compositions, finishing compositions for moisture management, and finishing compositions for improving wicking properties.

9. The textile finishing method according to any one of claims 1 to 8, wherein the one or more finishing compositions do not contain silicone or fluorinated compounds.

10. The textile finishing method according to any one of claims 1 to 9, wherein the one or more finishing compositions comprise, preferably consist of: i) from about 10.0% to about 30.0% by weight of 1,2,3-propanetriol; ii) from about 0.05% to about 10.0% by weight of a surfactant; iii) from about 1.0% to about 10% by weight of a finish selected from the group consisting of plant-derived oils, plant-derived waxes, beeswax, and esterquats, provided that if the finish is a plant-derived wax or beeswax, the composition may further comprise a wax extender; iv) optionally, a thickener and / or a biocide and / or a pH adjuster; and v) water, made up to 100% by weight; The weight % is based on the total weight of the composition.

11. The textile finishing method according to any one of claims 1 to 10, wherein the one or more finishing compositions are subjected to a shearing reaction at 25°C and a shear rate of 200-400s -1 The viscosity of the present invention is 5 cP-9 cP, more preferably 6-7 cP.

12. The method for finishing a textile according to any one of claims 1 to 11, wherein the textile is a woven, knitted or non-woven fabric.

13. A textile finishing method according to claim 12, wherein the fabric comprises synthetic and / or natural fibers, preferably selected from the group consisting of cellulose fibers, elastane fibers, polyamide fibers and polyester fibers.

14. Finished textile obtainable by the method according to any one of claims 1 to 13.

15. Garment comprising the finished textile according to claim 14.

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