CN114318640A - Perspiration super-soft cool fabric and preparation method thereof - Google Patents
Perspiration super-soft cool fabric and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a perspiration super-soft cool fabric and a preparation method thereof. The preparation method of the perspiring super-soft cool fabric comprises the following steps: blending modal, COOLMAX polyester fiber and copper ammonia fiber to prepare blended yarn; and then preparing fabric grey cloth with spandex filaments by adopting weft plain stitch plaiting stitch, and preparing the fabric grey cloth into the platoon sweaty super-soft cool feeling fabric through blank setting → singeing → dyeing → finished product setting → double-blanket preshrinking → quality inspection. Compared with the prior art, the perspiration super-soft cool fabric prepared by the invention adopts innovative yarn configuration, weaving process and dyeing and finishing process, and the prepared knitted fabric has soft hand feeling, light weight, good elasticity, moisture absorption and quick drying functions, good drapability and color fastness, is comfortable to wear, has cool effect, and is very suitable for spring and summer clothing fabric.
Description
Technical Field
The invention relates to the technical field of textiles, in particular to a perspiration super-soft cool fabric and a preparation method thereof.
Background
Comfort is a fundamental property of any garment. Comfortable garments may have three distinct portions, namely physical, thermal and tactile comfort. The psychological comfort is mainly related to the modern fashion trend and the social acceptance degree, and has little relation with the performance of the fabric. Haptic comfort is related to mechanical properties and fabric surface properties. Thermal comfort is related to the ability of the fabric to maintain the temperature of the human body by transferring heat and perspiration. Thermal comfort is mainly due to the influence of skin surface temperature, since the skin temperature is allowed to remain at a comfortable level by the evaporative cooling effect of perspiration. Child fabrics are often required to have superior air and moisture permeability. But also has the excellent properties of light weight, softness, fast drying, coolness, etc. To meet the specific requirements of physical health and activity of the children. Skin-friendly fast-drying fibers are an excellent choice for children's clothing because they have the best combination of moisture management properties, insulation properties, softness, lightness and fast-drying properties. The most commonly used fibers in skin-friendly fast-drying fibers are polyester and cellulose fibers, however, the inert surface and lack of polar groups of polyester fibers limit their application in the fields of child undergarments, sanitary products, dressings and biomaterials, and cellulose fibers also have limitations due to their low strength and poor wrinkle resistance. Therefore, it is important to modify the fibers in different ways to increase their water absorption, softness and cooling properties.
Common modification techniques include surface coating, plasma treatment, silanization, polymer grafting, chemical processing, and the like. Most of these methods rely on high energy input or harsh chemicals and suffer from chemical contamination and poor durability. Such as by using a conventional and effective alkali reduction method to break ester bonds on the polyester fibers and form new polar groups. However, it severely reduces the mechanical strength of the polyester fiber and is potentially environmentally damaging. Another is to immobilize hydrophilic species on the fiber surface by a surface modification strategy. The polymer grafting method independent of specific equipment can not only greatly improve the hydrophilicity of the polyester fiber, but also support the mass production of the fiber. However, due to the lack of active groups in the chemical structure of the polyester backbone, the reactive sites are missing, which increases the difficulty of subsequent chemical modification.
In order to endow the fabric with super-softness, moisture absorption and sweat releasing performance, CN113619207A discloses a preparation method of a super-softness, moisture absorption and sweat releasing composite elastic fabric, which comprises the following steps that (1) outer-layer non-woven fabric and a thermoplastic elastic film are compounded through hot pressing, and two layers of fabrics stretched by a stretching roller are oppositely rolled by an embossing roller with a concave-convex pattern, so that air holes which are uniformly and densely distributed are formed in the two layers of fabrics; (2) spraying or passing a hot melt adhesive through a hot melt adhesive roller, and forming a hot melt adhesive grid at the non-punched position of the thermoplastic elastic film or the inner layer of the functional non-woven fabric; (3) simultaneously passing the three layers of fabrics through a hot pressing roller, and bonding the thermoplastic elastic film and the functional non-woven fabric together, thereby compounding the three layers of fabrics into a composite elastic fabric; the three layers of fabrics after being compounded are naturally retracted, and the functional non-woven fabrics in the non-bonding area are raised to form a fluffy three-dimensional layer. The invention effectively improves the air permeability and the water absorption; the functional non-woven fabrics is in the clearance department uplift of hot melt adhesive net forms fold or papaw, has improved the comfort level. However, the fabric prepared by the method is three-layer composite, has large thickness, is processed by hot sticking, and has rough hand feeling.
The publication No. CN112647184A discloses a preparation method of a super-strong breathable moisture-absorption cool silk fabric, the super-strong breathable moisture-absorption cool silk fabric is formed by interweaving superfine breathable polyester filaments, cool yarns and polyester cotton-like yarns, and the weight ratio of the superfine breathable polyester filaments, the cool yarns and the polyester cotton-like yarns is 34.6%: 15.4%: 50 percent. In the invention, the super-strong breathable moisture-absorbing cool silk fabric is formed by interweaving superfine breathable polyester filaments, cool silk and polyester cotton-like yarns, and the cool silk is formed by weaving polyethylene terephthalate (polyester) filament yarns and polyamide filament yarns, so that the fabric has high moisture absorption and quick drying functions, the excellent sweat guiding and quick drying functions of the fabric are ensured, sweat on the surface of skin is quickly absorbed, more heat is taken away by evaporation of the sweat, and the cool feeling of a human body is increased. However, most of the methods adopt polyester fibers, and have the defects of poor skin-friendly property and easy fluffing and pilling.
Disclosure of Invention
In view of the defects of poor sweat releasing performance, rough hand feeling and stuffiness and air impermeability of the fabric in the prior art, the application creatively invents the sweat releasing super-soft cool fabric which is soft in hand feeling, light in fabric, good in elasticity, good in drapability and color fastness, comfortable to wear and cool in feeling effect, has the moisture absorption and quick-drying functions and is very suitable for the spring and summer clothing fabric. The invention aims to solve the technical problem that modal, COOLMAX polyester fiber and cuprammonium fiber are mixed to prepare fabric grey cloth, then an auxiliary agent and anhydrous sodium sulphate are added for pretreatment, then dyeing is carried out under an alkaline condition, and finally shaping, preshrinking and quality inspection are carried out to prepare the perspiration super-soft cool fabric.
A preparation method of the perspiration super soft cool fabric comprises the following steps:
step 1, spinning: uniformly mixing modal, COOLMAX polyester fiber and copper ammonia fiber, and processing into blended yarn by combing and adopting a siro compact spinning process;
step 2, weaving: knitting the blended yarns and the spandex prepared in the step 1 by adopting a specific tissue structure to form grey cloth;
step 3, dyeing and finishing: and (3) carrying out blank setting → singeing → dyeing → finished product setting → two-blanket preshrinking of the glue and woolen cloth → quality inspection on the gray fabric prepared in the step 2 to prepare the rows of sweat super-soft cool fabric.
Preferably, the weight percentages of the fibers are as follows: 20-30% of modal, 30-45% of COOLMAX polyester fiber, 20-30% of cuprammonium fiber and 10-20% of spandex.
Preferably, the linear density of the blended yarn in the step 1 is 40-60S, and the twist factor of the blended yarn is 320-500.
Preferably, the linear density of the spandex in the step 2 is 20-50D.
Preferably, the specific weave structure in the step 2 is a weft plain plaited weave.
Preferably, the stitch length parameter of the blended yarn in the step 2 weaving is 270mm/100 needles, and the stitch length parameter of the spandex is 100mm/100 needles. .
Preferably, the loom in the step 2 adopts a single-sided circular weft knitting machine, and the loom parameters are 34", 32G and 96F.
Preferably, the grammes of the gray fabric in the step 2 is 160-180g/m2。
Preferably, the blank setting parameters in the step 3 are as follows: the temperature of the setting machine is 200-240 ℃, the speed of the vehicle is 30-40 m/min, and the rotating speed of the fan is 1200-1600 r/min.
Preferably, in the singeing step 3, the greige cloth is singed in a forward and backward mode, the cloth speed is 60-80m/min, the distance between the greige cloth and the reducing flame is 0.8-1.2cm, the distance between the greige cloth and the copper plate is 0.5-0.8cm, the distance between the greige cloth and the cylinder is 5-7cm, and the singeing stage is 4-5, so that the singed greige cloth is obtained.
Preferably, the method for shaping the product in step 3 comprises: the setting temperature is controlled to be 130-160 ℃, the machine speed is 15-25 m/min, and the breadth of the setting blank is 150-300 cm.
Preferably, the double-blanket preshrinking process of the tweed in the step 3 comprises the following steps: 24-28% of steam, 4-8% of overfeeding and 6-15 m/min of vehicle speed, wherein the steam firstly passes through a rubber blanket and then passes through a woolen blanket, the temperature of the rubber blanket is 110-130 ℃, and the temperature of the woolen blanket is 110-130 ℃.
Preferably, the dyeing process in the step 3 is as follows, and the parts are all parts by weight:
s1, adding 40-60 parts of singed grey cloth into 180-220 parts of 20-40 ℃ water, increasing the water temperature to 50-60 ℃ at the speed of 3-5 ℃/min, then adding 10-20 parts of auxiliary agent and 3-7 parts of anhydrous sodium sulphate, and stirring for reaction for 10-20 min at the stirring speed of 150-250 r/min; then adding acetic acid to adjust the pH value to 6.0-6.5, adding 10-20 parts of disperse light yellow 6GSL dye, dyeing for 15-25 min, and standing for 8-12 min to prepare a primary dyeing solution;
s2, raising the temperature of the solution to be 60-70 ℃ at a speed of 0.3-0.8 ℃/min for the primary dyeing solution, standing for 8-12 min, adding 10-20 parts of 0.1-0.3 g/L sodium carbonate aqueous solution for reaction for 20-30 min, continuously adding 10-20 parts of 0.3-0.8 g/L sodium carbonate aqueous solution for reaction for 15-25 min, adding 10-20 parts of 0.5-1.5 g/L sodium carbonate aqueous solution for reaction for 15-25 min, and standing for 30-50 min; and reducing the temperature to 40-60 ℃ at the speed of 2-3 ℃/min, preserving for 20-40 min, cooling at normal temperature, and taking out the grey cloth.
The preparation method of the auxiliary agent in the step S1 is as follows:
z1, mixing vinyl triethoxysilane, 1, 3-bis (3-glycidyl ether oxypropyl) tetramethyldisiloxane and methyl triethylammonium hydroxide aqueous solution to prepare a mixture, increasing the temperature of the mixture to 80-100 ℃ to react for 8-12 h to prepare a reaction mixture, decompressing the reaction mixture to 0.001-0.02 MPa, and then heating to 140-160 ℃ to react for 0.3-0.8 h to obtain viscous fluid;
z2, dissolving the viscous fluid and polyisobutylene amine in an isopropanol aqueous solution, raising the reaction temperature to 70-90 ℃, and reacting for 4-6 hours to obtain a transparent viscous fluid;
z3, mixing the transparent viscous fluid with 3-chloropropyltrimethoxysilane, and then raising the temperature to 70-90 ℃ for reacting for 4-6 h to obtain an auxiliary raw material;
z4, mixing the auxiliary raw material with fatty alcohol-polyoxyethylene ether, stirring for 2-10 min, and then dropwise adding an acetic acid aqueous solution to form an emulsion; and finally adding water to obtain the assistant.
Preferably, the preparation method of the assistant in step S1 is as follows, and the parts are all parts by weight:
z1, mixing 30-40 parts of vinyltriethoxysilane, 1-3 parts of 1, 3-bis (3-glycidyl ether oxypropyl) tetramethyldisiloxane and 3-10 parts of 0.01-0.03 wt% methyltriethylammonium hydroxide aqueous solution to prepare a mixture, increasing the temperature of the mixture to 80-100 ℃ to react for 8-12 hours to prepare a reaction mixture, decompressing the reaction mixture to 0.001-0.02 MPa, and then heating to 140-160 ℃ to react for 0.3-0.8 hours to obtain viscous fluid;
z2, dissolving 25-35 parts of viscous fluid prepared in the step Z1 and 25-35 parts of polyisobutylene amine in 80-120 parts of 30-50 wt% isopropanol water solution, raising the reaction temperature to 70-90 ℃, and reacting for 4-6 hours to obtain transparent viscous fluid;
z3, mixing 40-60 parts of transparent viscous fluid prepared in the step Z2 and 30-50 parts of 3-chloropropyltrimethoxysilane, and then raising the temperature to 70-90 ℃ for reacting for 4-6 hours to obtain an auxiliary raw material;
z4, mixing 5-15 parts of the auxiliary raw material prepared in the step Z3 with 1-5 parts of fatty alcohol-polyoxyethylene ether, stirring for 2-10 min, and then dropwise adding 5-15 parts of 5-15 wt% acetic acid water solution to form an emulsion; and finally, adding 50-70 parts of water to obtain the assistant.
The perspiration super-soft cool fabric prepared by the invention has a good perspiration effect, the flexibility of the fabric is improved, and the fabric is endowed with excellent dyeing performance and ultraviolet radiation resistance. The nano-particle assistant with quaternary ammonium salt groups on the surface is prepared through the reaction of silane and quaternary ammonium salt and further amination, the particle size of the transparent viscous fluid is mainly 40-120 nm, and the particle size of the assistant is mainly 80-500 nm. The particles of the auxiliary agent are basically spherical bubbles and have good dispersibility. The main reason is that methylsiloxane is hydrolyzed to silicon hydroxide, and the slow crosslinking reaction between silicon hydroxide molecules leads to an increase in the particle size of the adjuvant. The addition of the auxiliary agent can reduce the surface tension of the aqueous solution, and the auxiliary agent particles have stronger aggregation capability and structural stability in the aqueous solution. When the surface tension of the aqueous solution is higher than the critical micelle surface tension, the whole system is stable, and the auxiliary agent exists in the form of micelle. And (3) treating the grey cloth by aid of the aid emulsion, and drying at 180-210 ℃. The structure of the grey cloth can not be damaged, and the high-temperature requirement of grey cloth finishing is met. Mainly because the bond energy of the C-C bonds is 347kJ/mol, while the bond energy of the Si-O bonds is 462 kJ/mol. Only one Si-O-Si segment of vinyltriethoxysilane and 1, 3-bis (3-glycidyloxypropyl) tetramethyldisiloxane is difficult to withstand high temperature processing. By reacting with methyltriethylammonium hydroxide and then combining with polyisobutylene amine, the auxiliary agent structure has repeated Si-O chain segments, and chemical bonds can not be broken at high temperature.
The untreated fiber surface had many relatively rough grooves. After the processing of the auxiliary agent, the grooves on the surface of the fiber disappear and become smoother. Because the quaternary ammonium salt group in the assistant structure is firmly adsorbed on the surface of the fiber, two hydrophilic groups of the assistant extend into water, the hydrophobic chain forms a bending structure and extends to a gas phase, and the assistant molecules are in an inverted U-shaped conformation on the surface of the solution. After the fiber is formed at high temperature, the methyl siloxane groups on the surface of the fiber form a layer of Si-O-Si space network crosslinking film. Greatly reduces the friction among the fiber bundles, and leads the fabric to be smooth, bright and soft. Due to the introduction of the siloxane chain segment, the thermal stability of the main chain is improved, the assistant is endowed with high temperature resistance and acid and alkali resistance, and the high temperature requirement of the fabric finishing process is met. Meanwhile, the auxiliary agent has a vesicle structure, the shell of the auxiliary agent is an anion with carboxylic acid groups, the auxiliary agent has good tolerance to soda, and the structure of the auxiliary agent cannot be damaged by soda treatment in the dyeing process. When the assistant is adsorbed on the oil-water interface, the electrostatic repulsion force between the interfaces enables the assistant to be in a stable state, and the assistant has good stability and good adaptability to various complex environments. Due to the modification of the 3-chloropropyltrimethoxysilane and the polyisobutene amine, the absolute value of the surface potential is increased, and the stability of the auxiliary agent ensures that the particles are not easy to agglomerate in the dispersion. Because of the curve structure formed by the quaternary ammonium salt group of the auxiliary agent, pi-pi interaction and electrostatic interaction are generated in the reaction with polyisobutylene amine, the fiber treated by the auxiliary agent improves the electrostatic neutralization effect, improves the absorption rate of the fiber material to the auxiliary agent, improves the utilization rate of the dye, and reduces the content of the dye in the wastewater. The dye concentration and absorbance were linear. The color fastness to washing of the grey cloth treated by the aid is remarkably improved, and the grey cloth is not easy to fade after washing. The fastness to ultraviolet radiation of the treated grey cloth is strong mainly due to the existence of a reticular cross-linked film between the methyl siloxane groups and the fabric.
The conventional reactive dye is connected to the fiber through ester or ether bond, is easy to hydrolyze and break under certain conditions (acid or alkali), has low nucleophilicity to the fiber, cannot continuously generate color fixing reaction with the fiber, is easy to wash by water, and reduces the fastness to water treatment of the fabric. The color fixing mechanism of the auxiliary agent is as follows: (1) the action mechanism of the auxiliary agent and the dye is that nitrogen atoms of the auxiliary agent have stronger electronic induction, which shows that carbon atoms have stronger positive power for intermediate hybridization. In an acidic medium, the positive charge of the adjunct binds to anionic groups in the anionic dye structure, resulting in an insoluble deposit on the fiber, blocking the soluble groups of the dye. The dye on the fabric is not easy to dissolve and fall off in water, so that the water solubility of the dye is reduced, and the water treatment fastness is improved. The stronger the cation effect of the auxiliary agent, the better the color fastness. (2) The assistant and the fiber have the action mechanism that the hydrolysis assistant at the other end of the methyl siloxane group causes the covalent crosslinking reaction between the fiber surface and hydroxyl, a group is formed on the fiber surface, the dye is promoted to be firmly fixed on the fiber, and then a durable and excellent pure color improving effect is achieved. The fabric treated by the auxiliary agent has excellent washing color fastness, rubbing color fastness and ultraviolet radiation color fastness.
Due to the adoption of the technical scheme, compared with the prior art, the preparation method of the perspiration super-soft cool fabric has the advantages that: 1) vinyl triethoxysilane reacts with methyl triethyl ammonium hydroxide, and a Si-O-Si space network cross-linked film formed by grafting quaternary ammonium salt in a silane compound is adopted to endow the fabric with high temperature resistance and dyeing performance. 2) Further modified by polyisobutylene amine, the dispersibility of the auxiliary agent is enhanced, and the utilization rate, the washing fastness and the ultraviolet radiation resistance of the dye are improved. 3) The modal, COOLMAX polyester fibers and cuprammonium fibers are blended by adopting a scientific ratio, and the perspiration super-soft cool fabric is prepared by adopting innovative weaving and dyeing and finishing processes, so that the perspiration super-soft cool fabric has a good perspiration effect, the flexibility of the fabric is improved, and the contact cool feeling is excellent.
Drawings
FIG. 1 is a process flow diagram of a dyeing process of a perspiration ultra-soft cool fabric.
Detailed Description
Sources of the main raw materials in the examples:
vinyltriethoxysilane: density (g/mL, 20 ℃ C.): 0.93, CAS number: 78-08-0.
1, 3-bis (3-glycidyloxypropyl) tetramethyldisiloxane: wuhananabai pharmaceutical chemicals ltd, molecular weight: 362.609, CAS number: 126-80-7.
Methyltriethylammonium hydroxide: wuhan daoel biotechnology limited, molecular weight: 133.23, CAS number: 109334-81-8.
Polyisobutylene amine: santa chemical limited, ca, nju, purity: 99.9%, density: 890-935g/cm3The amine value is more than or equal to 20 percent.
3-chloropropyltrimethoxysilane: kandis chemical (Hubei) Co., Ltd., molecular weight: 198.72, CAS number: 2530-87-2.
Example 1
The preparation method of the perspiration super soft cool fabric comprises the following steps of:
step 1, spinning: uniformly mixing 25 parts of modal, 40 parts of COOLMAX polyester fiber and 25 parts of copper ammonia fiber, and processing the mixture into blended yarn by combing and adopting a siro compact spinning process, wherein the linear density of the blended yarn is 50S, and the twist coefficient of the blended yarn is 400;
step 2, weaving: weaving 70 parts of blended yarns prepared in the step 1 and 15 parts of 30D spandex into gray fabric by adopting a single-side circular weft knitting machine through a weft plain stitch plaiting organization, wherein the weaving parameters are 34', 32G and 96F, the coil length of the woven gray fabric is the blended yarns (270mm/100 needles) and the spandex (100mm/100 needles), and the gram weight is 160-flour-plus 180G/m2；
Step 3, dyeing and finishing: 50 parts of the grey cloth prepared in the step 2 is subjected to blank setting → singeing → dyeing → finished product setting → double-blanket preshrinking of the glue and woolen cloth → quality inspection; the temperature of the blank centering setting machine is 220 ℃, the vehicle speed is 35m/min, and the rotating speed of a fan is 1400 r/min; the singeing process is that the grey cloth is singed in a positive mode and a negative mode, the cloth speed is 70m/min, the distance between the grey cloth and the reducing flame is 1.0cm, the distance between the grey cloth and the copper plate is 0.6cm, the distance between the grey cloth and the cylinder is 6cm, and the singeing stage is 5 grades; the shaping temperature in the shaping of the finished product is controlled at 140 ℃, the machine speed is 18m/min, and the breadth of the shaped blank is 200 cm. In the pre-shrinking process of the rubber and woolen double blankets, steam is 26 percent, overfeeding is 6 percent, the speed is 10m/min, the rubber blanket is firstly passed through, then the woolen blanket is passed through, the temperature of the rubber blanket is 120 ℃, and the temperature of the woolen blanket is 120 ℃; finally, the fabric with the excessive soft and cool sense of sweat discharge is prepared after quality inspection is qualified.
The dyeing processing technology in the step 3 is as follows, and the parts are all parts by weight:
s1, adding 50 parts of singed grey cloth into 200 parts of 30 ℃ water, increasing the water temperature to 55 ℃ at the speed of 4 ℃/min, then adding 15 parts of auxiliary agent and 5 parts of anhydrous sodium sulphate, and stirring for reaction for 15min at the stirring speed of 200 r/min; then adding acetic acid to adjust the pH value to 6.2, adding 15 parts of disperse light yellow 6GSL dye, dyeing for 20min, and then standing for 10min to prepare a primary dyeing solution;
s2, raising the temperature of the solution to 65 ℃ at the speed of 0.5 ℃/min, standing for 10min, adding 15 parts of 0.2g/L sodium carbonate aqueous solution for reaction for 25min, continuing to add 15 parts of 0.5g/L sodium carbonate aqueous solution for reaction for 20min, adding 15 parts of 1.0g/L sodium carbonate aqueous solution for reaction for 20min, and standing for 40 min; and reducing the temperature to 50 ℃ at the speed of 2.5 ℃/min, storing for 30min, cooling at normal temperature, and taking out the fabric.
The preparation method of the assistant in the step S1 is as follows, wherein the parts are all parts by weight:
z1, mixing 34 parts of vinyltriethoxysilane, 2 parts of 1, 3-bis (3-glycidyloxypropyl) tetramethyldisiloxane and 5 parts of 0.02 wt% aqueous methyltriethylammonium hydroxide solution to prepare a mixture, increasing the temperature of the mixture to 90 ℃ to react for 10 hours to prepare a reaction mixture, reducing the pressure of the reaction mixture to 0.01MPa, and then heating to 150 ℃ to react for 0.5 hours to obtain a viscous fluid;
z2, dissolving 30 parts of viscous fluid prepared in the step Z1 and 30 parts of polyisobutylene amine in 100 parts of 40 wt% isopropanol water solution, raising the reaction temperature to 80 ℃, and reacting for 5 hours to obtain transparent viscous fluid;
z3, mixing 50 parts of the transparent viscous fluid prepared in the step Z2 with 40 parts of 3-chloropropyltrimethoxysilane, and then raising the temperature to 80 ℃ for reaction for 5 hours to obtain an auxiliary raw material;
z4, mixing 10 parts of the auxiliary raw material prepared in the step Z3 with 3 parts of fatty alcohol-polyoxyethylene ether, stirring for 5min by using a magnetic stirrer, and then dropwise adding 10 parts of 10 wt% acetic acid aqueous solution to form emulsion; and finally, adding 60 parts of water to obtain the auxiliary agent.
Example 2
The preparation method of the perspiration super soft cool fabric is basically the same as that of the example 1, and the only difference is that: the preparation method of the auxiliary agent in the step S1 is different.
In this embodiment, the preparation method of the assistant in step S1 is as follows, and the parts are all parts by weight:
z1, mixing 2 parts of 1, 3-bis (3-glycidyl ether oxypropyl) tetramethyldisiloxane and 5 parts of 0.02 wt% aqueous methyltriethylammonium hydroxide solution to prepare a mixture, increasing the temperature of the mixture to 90 ℃ to react for 10 hours to prepare a reaction mixture, reducing the pressure of the reaction mixture to 0.01MPa, and then heating to 150 ℃ to react for 0.5 hours to obtain a viscous fluid;
z2, dissolving 30 parts of viscous fluid prepared in the step Z1 and 30 parts of polyisobutylene amine in 100 parts of 40 wt% isopropanol water solution, raising the reaction temperature to 80 ℃, and reacting for 5 hours to obtain transparent viscous fluid;
z3, mixing 50 parts of the transparent viscous fluid prepared in the step Z2 with 40 parts of 3-chloropropyltrimethoxysilane, and then raising the temperature to 80 ℃ for reaction for 5 hours to obtain an auxiliary raw material;
z4, mixing 10 parts of the auxiliary raw material prepared in the step Z3 with 3 parts of fatty alcohol-polyoxyethylene ether, stirring for 5min by using a magnetic stirrer, and then dropwise adding 10 parts of 10 wt% acetic acid aqueous solution to form emulsion; and finally, adding 60 parts of water to obtain the auxiliary agent.
Example 3
The preparation method of the perspiration super soft cool fabric is basically the same as that of the example 1, and the only difference is that: the preparation method of the auxiliary agent in the step S1 is different.
In this embodiment, the preparation method of the assistant in step S1 is as follows, and the parts are all parts by weight:
z1, mixing 34 parts of vinyl triethoxysilane and 2 parts of 1, 3-bis (3-glycidyl ether oxypropyl) tetramethyldisiloxane to prepare a mixture, increasing the temperature of the mixture to 90 ℃ to react for 10 hours to prepare a reaction mixture, reducing the pressure of the reaction mixture to 0.01MPa, and then heating to 150 ℃ to react for 0.5 hours to obtain a viscous fluid;
z2, dissolving 30 parts of viscous fluid prepared in the step Z1 and 30 parts of polyisobutylene amine in 100 parts of 40 wt% isopropanol water solution, raising the reaction temperature to 80 ℃, and reacting for 5 hours to obtain transparent viscous fluid;
z3, mixing 50 parts of the transparent viscous fluid prepared in the step Z2 with 40 parts of 3-chloropropyltrimethoxysilane, and then raising the temperature to 80 ℃ for reaction for 5 hours to obtain an auxiliary raw material;
z4, mixing 10 parts of the auxiliary raw material prepared in the step Z3 with 3 parts of fatty alcohol-polyoxyethylene ether, stirring for 5min by using a magnetic stirrer, and then dropwise adding 10 parts of 10 wt% acetic acid aqueous solution to form emulsion; and finally, adding 60 parts of water to obtain the auxiliary agent.
Example 4
The preparation method of the perspiration super soft cool fabric is basically the same as that of the example 1, and the only difference is that: the preparation method of the auxiliary agent in the step S1 is different.
In this embodiment, the preparation method of the assistant in step S1 is as follows, and the parts are all parts by weight:
z1, mixing 34 parts of vinyltriethoxysilane, 2 parts of 1, 3-bis (3-glycidyloxypropyl) tetramethyldisiloxane and 5 parts of 0.02 wt% aqueous methyltriethylammonium hydroxide solution to prepare a mixture, increasing the temperature of the mixture to 90 ℃ to react for 10 hours to prepare a reaction mixture, reducing the pressure of the reaction mixture to 0.01MPa, and then heating to 150 ℃ to react for 0.5 hours to obtain a viscous fluid;
z2, dissolving 30 parts of viscous fluid prepared in the step Z1 in 100 parts of 40 wt% isopropanol aqueous solution, raising the reaction temperature to 80 ℃, and reacting for 5 hours to obtain transparent viscous fluid;
z3, mixing 50 parts of the transparent viscous fluid prepared in the step Z2 with 40 parts of 3-chloropropyltrimethoxysilane, and then raising the temperature to 80 ℃ for reaction for 5 hours to obtain an auxiliary raw material;
z4, mixing 10 parts of the auxiliary raw material prepared in the step Z3 with 3 parts of fatty alcohol-polyoxyethylene ether, stirring for 5min by using a magnetic stirrer, and then dropwise adding 10 parts of 10 wt% acetic acid aqueous solution to form emulsion; and finally, adding 60 parts of water to obtain the auxiliary agent.
Comparative example 1
The preparation method of the perspiration super soft cool fabric is basically the same as that of the example 1, and the only difference is that: the preparation method of the auxiliary agent in the step S1 is different.
In this embodiment, the preparation method of the assistant in step S1 is as follows, and the parts are all parts by weight:
z1, raising the temperature of 2 parts of 1, 3-bis (3-glycidyl ether oxypropyl) tetramethyldisiloxane to 90 ℃ and keeping the temperature for 10 hours; then decompressing to 0.01MPa, heating to 150 ℃ and reacting for 0.5h to obtain viscous fluid;
z2, dissolving 30 parts of viscous fluid prepared in the step Z1 in 100 parts of 40 wt% isopropanol aqueous solution, raising the reaction temperature to 80 ℃, and reacting for 5 hours to obtain transparent viscous fluid;
z3, mixing 50 parts of the transparent viscous fluid prepared in the step Z2 with 40 parts of 3-chloropropyltrimethoxysilane, and then raising the temperature to 80 ℃ for reaction for 5 hours to obtain an auxiliary raw material;
z4, mixing 10 parts of the auxiliary raw material prepared in the step Z3 with 3 parts of fatty alcohol-polyoxyethylene ether, stirring for 5min by using a magnetic stirrer, and then dropwise adding 10 parts of 10 wt% acetic acid aqueous solution to form emulsion; and finally, adding 60 parts of water to obtain the auxiliary agent.
Comparative example 2
The preparation method of the perspiration super soft cool fabric is basically the same as that of the example 1, and the only difference is that: no auxiliary agent is added in the step S1.
Test example 1
Fabric drapability test
Testing is carried out according to the regulation in GB/T23329-2009 'determination of textile fabric drapability', and the experimental instrument is an XDP-1 fabric drapability tester; because the test error is generated by the sample with the wrinkles and the twists, the sample is sampled at the position avoiding the wrinkles and the twists on the sample, and the specification of the sample is a 24cm circle with the diameter; three parts of each sample are selected for testing, and the test results are shown in table 1.
TABLE 1 Fabric drape test results
| Experimental protocol | Static coefficient of overhang/%) |
| Example 1 | 5.31 |
| Example 2 | 8.30 |
| Example 3 | 8.58 |
| Example 4 | 8.41 |
| Comparative example 1 | 9.41 |
| Comparative example 2 | 10.21 |
From the results of the fabric drape test, it can be seen that the drape of example 1 is the best, probably because the methylsiloxane groups on the fiber surface form a layer of Si-O-Si space network cross-linked film, which greatly reduces the friction between fiber bundles, making the fabric smooth, bright and soft.
Test example 2
Moisture absorption and quick drying Performance test
(1) Moisture permeability test
The standard of moisture permeability test reference is GB/T11048-2008 'determination of thermal resistance and moisture resistance of textile physiological comfort under steady state condition'; the experimental instrument is a YG606G type thermal resistance and wet resistance tester; sampling at a distance of 10cm from the selvage, wherein the sample size is 37cm multiplied by 37 cm; the wet resistance condition is 35 ℃ and 40% of humidity; each sample was tested in triplicate and the data obtained from the experiment is shown in table 2.
(2) Moisture absorption test
The wicking height test is referenced to the standard GB/T21655.1-2008, evaluation of quick moisture absorption dryness for textiles part 1: single combinatorial testing approach "; the wicking height of the fabric in the weft weaving direction is tested, the wicking height in 30min is recorded, each sample is tested for three times, and the moisture absorption and quick drying performance of the fabric is comprehensively judged. The results are shown in Table 2.
Table 2: test results of moisture absorption and quick drying Properties
It can be seen in table 2 that the hygroscopic quick-drying property of example 1 is the best, probably because the invention successfully adopts the reaction of vinyltriethoxysilane and methyltriethylammonium hydroxide, and further synthesizes the auxiliary agent through the modification of polyisobutylene amine, and the moisture permeability relates to the transmission of three paths of 'gaseous water', namely micropore diffusion in the fabric, self-moisture absorption of the fiber and capillary effect. The Si-O-Si space network cross-linked film formed by grafting quaternary ammonium salt in the silane compound enhances the self moisture absorption and capillary effect and endows the fabric with moisture absorption performance. During the post-treatment process, the auxiliary agent keeps higher stability under the conditions of acid, alkali and high temperature. And positive charges are carried on the surface of the fabric after the treatment of the auxiliary agent, so that the adsorption performance of the fabric in water molecules can be obviously improved.
Test example 3
Contact cooling test
The cool feeling detection is tested according to the regulation in GB/T35263-2017 detection and evaluation of cool feeling performance at the moment of textile contact.
The test result shows that the instant contact cool feeling of the sample is all 0.2W cm-2The above materials all have good cool feeling in contact.
Test example 4
Soaping color fastness test
The test is carried out according to the test standard of GB/T3921-2008 'soaping color fastness resistance of textile color fastness test'. A sample of a sample to be tested is taken, and the sample is clamped between two single fibers with the diameter of 40mm multiplied by 100mm and pasted with cotton lining. Then preparing soap solution containing 5g soap per liter of water, and fully dispersing and dissolving the soap in water with the temperature of 25 +/-5 ℃ by using a stirrer for 10 +/-1 min. And (3) transferring the soap solution to a stainless steel container, putting the prepared samples into the stainless steel container together, preheating a washing device, and raising the temperature of the washing device to 60 +/-2 ℃, wherein the bath ratio is 50: 1, covering the container, and washing for 30min by adopting a rinsing mode under the constant temperature condition that the temperature of the solution is kept to be 60 +/-2 ℃. And after the experiment is finished, taking out the sample, cleaning the sample by using clear water, extruding excessive water on the sample, drying the sample, comparing the original sample by using a gray sample card, and evaluating the discoloration of the sample and the staining of the cotton lining fabric. The test results are shown in Table 3.
TABLE 3 soaping color fastness test results
| Experimental protocol | Grade |
| Example 1 | 4 stage |
| Example 2 | 3 to 4 grades |
| Example 3 | Grade 3 |
| Example 4 | Grade 3 |
| Comparative example 1 | 2 to 3 stages |
| Comparative example 2 | Stage 2 |
The higher the grade, the less fading in the wash and the better the fastness.
It can be seen from table 3 that example 1 has the highest grade and the best color fastness, probably because the nanoparticle assistant with quaternary ammonium salt groups on the surface is prepared by reacting silane and quaternary ammonium salt and then further aminating, and the particles are basically spherical bubbles and have good dispersibility. The addition of the auxiliary agent can reduce the surface tension of the aqueous solution, and the auxiliary agent particles have stronger aggregation capability and structural stability in the aqueous solution. After the grey cloth is treated by the aid, more Si-O chain segments are formed, chemical bonds cannot be broken at high temperature, and the grey cloth is dried at 180-210 ℃ without damaging the structure of the grey cloth. Meanwhile, the auxiliary agent has a vesicle structure, the shell of the auxiliary agent is an anion with carboxylic acid groups, the auxiliary agent has good tolerance to alkali liquor, and the auxiliary agent structure cannot be damaged by the treatment of soda ash in the dyeing process. Due to the modification of the 3-chloropropyltrimethoxysilane and the polyisobutene amine, the absolute value of the surface potential is increased, and the stability of the auxiliary agent ensures that the particles are not easy to agglomerate in the dispersion. Due to the curve structure formed by the quaternary ammonium salt group of the auxiliary agent, pi-pi interaction and electrostatic interaction are generated in the reaction with polyisobutylene amine, the absorption rate of the fiber material to the auxiliary agent is improved, the utilization rate of the dye is improved by the auxiliary agent, and the content of the dye in the wastewater is reduced.
Due to the fact that a reticular cross-linked film exists between the methyl siloxane groups and the fabric, the color fastness to washing of the grey cloth treated by the aid is remarkably improved, and the grey cloth is not prone to fading after washing. The hydrolytic dye has small nucleophilicity to the fiber, can not continuously generate color fixing reaction with the fiber, is easy to wash, and reduces the color fastness of the fabric after water-resistant treatment. The color fixing mechanism of the auxiliary agent is as follows: (1) the action mechanism of the auxiliary agent and the dye is that nitrogen atoms of the auxiliary agent have stronger electronic induction, which shows that carbon atoms have stronger positive power for intermediate hybridization. In an acidic medium, the positive charge of the adjunct binds to anionic groups in the anionic dye structure, resulting in an insoluble deposit on the fiber, blocking the soluble groups of the dye. The dye on the fabric is not easy to dissolve and fall off in water, so that the water solubility of the dye is reduced, and the water treatment fastness is improved. The stronger the cation effect of the auxiliary agent, the better the color fastness. (2) The assistant and the fiber have the action mechanism that the hydrolysis assistant at the other end of the methyl siloxane group causes the covalent crosslinking reaction between the fiber surface and hydroxyl, a group is formed on the fiber surface, the dye is promoted to be firmly fixed on the fiber, and then a durable and excellent pure color improving effect is achieved. The fabrics treated with the aid have excellent wash fastness.
Claims (10)
1. A preparation method of the perspiration super soft cool fabric is characterized by comprising the following steps:
step 1, spinning: uniformly mixing modal, COOLMAX polyester fiber and copper ammonia fiber, and processing into blended yarn by combing and adopting a siro compact spinning process;
step 2, weaving: knitting the blended yarns and the spandex prepared in the step 1 by adopting a specific tissue structure to form grey cloth;
step 3, dyeing and finishing: and (3) carrying out blank setting → singeing → dyeing → finished product setting → two-blanket preshrinking of the glue and woolen cloth → quality inspection on the gray fabric prepared in the step 2 to prepare the rows of sweat super-soft cool fabric.
2. The method for preparing the perspiration ultra-soft cool fabric according to claim 1, wherein the modal, COOLMAX polyester fiber, cuprammonium fiber and spandex are 20-30%, 30-45%, 20-30% and 10-20% by mass.
3. The method for preparing the perspiration ultra-soft cool fabric according to claim 1, wherein the number of the blended yarns in the step 1 is 40 to 60S, and the twist factor of the blended yarns is 320 to 500.
4. The method for preparing the perspiration ultra-soft cool feeling fabric according to claim 1, wherein the specific weave structure in the step 2 is a weft plain plated weave.
5. The method for preparing the perspiration ultra-soft cool fabric according to claim 1, wherein the stitch length parameter of the blended yarn in the step 2 weaving is 270mm/100 stitches, and the stitch length parameter of the spandex is 100mm/100 stitches.
6. The method for preparing the perspiration ultra-soft cool feeling fabric according to claim 1, wherein the loom in the step 2 is a single-sided circular knitting machine, and the weaving parameters are 34", 32G and 96F.
7. The method for preparing the perspiration ultra-soft cool feeling fabric according to claim 1, wherein the grammage of the gray fabric in the step 2 is 160-180g/m2。
8. The method for preparing the perspiration ultra-soft cool fabric according to claim 1, wherein the dyeing process in the step 3 is as follows, and the parts are all parts by weight:
s1, adding 40-60 parts of singed grey cloth into 180-220 parts of 20-40 ℃ water, increasing the water temperature to 50-60 ℃ at the speed of 3-5 ℃/min, then adding 10-20 parts of auxiliary agent and 3-7 parts of anhydrous sodium sulphate, and stirring for reaction for 10-20 min at the stirring speed of 150-250 r/min; then adding acetic acid to adjust the pH value to 6.0-6.5, adding 10-20 parts of disperse light yellow 6GSL dye, dyeing for 15-25 min, and standing for 8-12 min to prepare a primary dyeing solution;
s2, raising the temperature of the solution to be 60-70 ℃ at a speed of 0.3-0.8 ℃/min for the primary dyeing solution, standing for 8-12 min, adding 10-20 parts of 0.1-0.3 g/L sodium carbonate aqueous solution for reaction for 20-30 min, continuously adding 10-20 parts of 0.3-0.8 g/L sodium carbonate aqueous solution for reaction for 15-25 min, adding 10-20 parts of 0.5-1.5 g/L sodium carbonate aqueous solution for reaction for 15-25 min, and standing for 30-50 min; and reducing the temperature to 40-60 ℃ at the speed of 2-3 ℃/min, preserving for 20-40 min, cooling at normal temperature, and taking out the grey cloth.
9. The method for preparing the perspiration ultra-soft cool fabric according to claim 8, wherein the auxiliary agent in the step S1 is prepared by the following steps:
z1, mixing vinyl triethoxysilane, 1, 3-bis (3-glycidyl ether oxypropyl) tetramethyldisiloxane and methyl triethylammonium hydroxide aqueous solution to prepare a mixture, increasing the temperature of the mixture to 80-100 ℃ to react for 8-12 h to prepare a reaction mixture, decompressing the reaction mixture to 0.001-0.02 MPa, and then heating to 140-160 ℃ to react for 0.3-0.8 h to obtain viscous fluid;
z2, dissolving the viscous fluid and polyisobutylene amine in an isopropanol aqueous solution, raising the reaction temperature to 70-90 ℃, and reacting for 4-6 hours to obtain a transparent viscous fluid;
z3, mixing the transparent viscous fluid with 3-chloropropyltrimethoxysilane, and then raising the temperature to 70-90 ℃ for reacting for 4-6 h to obtain an auxiliary raw material;
z4, mixing the auxiliary raw material with fatty alcohol-polyoxyethylene ether, stirring for 2-10 min, and then dropwise adding an acetic acid aqueous solution to form an emulsion; and finally adding water to obtain the assistant.
10. The utility model provides a super gentle cool sense surface fabric of perspire which characterized in that: the fabric is prepared by the method for preparing the perspiration super-soft cool fabric according to any one of claims 1 to 9.
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