阅读说明：本技术 一种防霉变静电植绒织物的制备方法 (Preparation method of anti-mildew electrostatic flocked fabric ) 是由 郑辛酉 于 2019-08-28 设计创作，主要内容包括：本发明涉及一种防霉变静电植绒织物的制备方法,属于纺织材料技术领域。本发明采用微乳技术制备出艾草精油微乳和薄荷油微乳,以有机硅氧烷改性聚氨酯作为粘合剂,以人造皮革作为基材,将艾草精油微乳和薰衣草精油微乳固定在粘合剂中,将通过静电整理后的羊绒通过静电植绒设备,制备出一种防霉变静电植绒织物；通过微乳技术的包埋,使得制备的艾草精油微乳和薄荷油微乳具有控制释放的作用,且能长时间储存,不会发生虫蛀和霉变；聚氨酯具有良好的透气、透湿性,有机硅氧烷具有良好的耐高低温性能、用有机硅氧烷改性聚氨酯,并将艾草精油微乳和薰衣草精油微乳固定在其中,使得制备的静电植绒织物具有防虫蛀、防霉变特性,且香味持久。(The invention relates to a preparation method of an anti-mildew electrostatic flocked fabric, belonging to the technical field of textile materials. The invention adopts microemulsion technology to prepare wormwood essential oil microemulsion and mint oil microemulsion, uses organic siloxane modified polyurethane as adhesive, uses artificial leather as substrate, fixes the wormwood essential oil microemulsion and lavender essential oil microemulsion in the adhesive, and uses static flocking equipment to prepare the anti-mildew static flocking fabric by the cashmere after static finishing; by embedding the microemulsion technology, the prepared wormwood essential oil microemulsion and mint oil microemulsion have the release control effect, can be stored for a long time, and cannot be damaged by worms or mildewed; the polyurethane has good air permeability and moisture permeability, the organosiloxane has good high-temperature and low-temperature resistance, the polyurethane is modified by the organosiloxane, and the wormwood essential oil microemulsion and the lavender essential oil microemulsion are fixed in the organosiloxane, so that the prepared electrostatic flocking fabric has the characteristics of moth prevention and mildew prevention, and has lasting fragrance.)

1. a preparation method of an anti-mildew electrostatic flocked fabric is characterized by comprising the following specific preparation steps:

(1) Uniformly mixing beta-cyclodextrin and deionized water according to the mass ratio of 1: 5 to obtain suspension, mixing wormwood essential oil and the suspension, keeping the temperature and stirring to obtain mixed liquid, placing the mixed liquid in a refrigerator with the temperature of 3-5 ℃, standing for 20-24 h, performing suction filtration to obtain filter residue, placing the filter residue in an oven with the temperature of 60-70 ℃, performing vacuum drying to constant weight, and cooling to room temperature to obtain wormwood essential oil microemulsion;

(2) mixing sodium disuccinate, polyethylene glycol-8-glyceryl caprylate/caprate and absolute ethyl alcohol, stirring to obtain a reaction solution, mixing peppermint oil and deionized water, stirring to obtain a base solution, adding the reaction solution into the base solution according to the mass ratio of 1: 1, and continuously stirring at constant temperature for 10-12 h to obtain the peppermint oil microemulsion;

(3) taking polysiloxane, polyethylene glycol, polymethylene polyphenyl polyisocyanate, wormwood essential oil microemulsion and mint oil microemulsion, mixing and reacting the polysiloxane, the polyethylene glycol, the wormwood essential oil microemulsion and the mint oil microemulsion, cooling to room temperature to obtain a precursor, adding the polymethylene polyphenyl polyisocyanate into the precursor, and stirring at room temperature for 20-30 min to obtain the adhesive;

(4) Sequentially soaking cashmere in deionized water, 50% ethanol solution by mass fraction and an antistatic finishing agent Q-DRY-PT-500 for 10-15 min, filtering to obtain a precipitate, and drying the precipitate to obtain pretreated cashmere;

(5) Uniformly coating the adhesive on the surface of the artificial leather, loading the pretreated cashmere into a flocking nozzle, performing electrostatic flocking treatment to obtain a blank, performing prebaking treatment on the blank to obtain a prebaked blank, performing baking treatment on the prebaked blank, and cooling to room temperature to obtain the anti-mildew electrostatic flocking fabric.

2. The method for preparing the anti-mildew electrostatic flocking fabric as claimed in claim 1, wherein: the heat preservation stirring treatment step in the step (1) is as follows: mixing the wormwood essential oil and the suspension according to the mass ratio of 1: 8, and stirring for 1-2 hours at the temperature of 50-60 ℃ and the stirring speed of 300-400 r/min under heat preservation.

3. The method for preparing the anti-mildew electrostatic flocking fabric as claimed in claim 1, wherein: the stirring treatment step in the step (2) is as follows: mixing sodium disuccinate, polyethylene glycol-8-glyceryl caprylate/caprate and absolute ethyl alcohol according to the mass ratio of 1: 2, and stirring at the stirring speed of 400-500 r/min for 10-20 min.

4. the method for preparing the anti-mildew electrostatic flocking fabric as claimed in claim 1, wherein: the stirring treatment step in the step (2) is as follows: mixing the peppermint oil and the deionized water according to the mass ratio of 1: 5, and stirring for 3-5 min at the temperature of 30-35 ℃ and the stirring speed of 200-300 r/min.

5. The method for preparing the anti-mildew electrostatic flocking fabric as claimed in claim 1, wherein: the polysiloxane, the polyethylene glycol, the polymethylene polyphenyl polyisocyanate, the wormwood essential oil microemulsion and the mint oil microemulsion in the step (3) are respectively in the following proportion: respectively weighing 10-20 parts of polysiloxane, 20-30 parts of polyethylene glycol, 1-10 parts of polymethylene polyphenyl polyisocyanate, 1-10 parts of wormwood essential oil microemulsion and 1-10 parts of mint oil microemulsion according to parts by weight.

6. The method for preparing the anti-mildew electrostatic flocking fabric as claimed in claim 1, wherein: the mixed reaction step in the step (3) is as follows: mixing polysiloxane, polyethylene glycol, wormwood essential oil microemulsion and mint oil microemulsion, and reacting for 3-5 h at the temperature of 140-150 ℃.

7. the method for preparing the anti-mildew electrostatic flocking fabric as claimed in claim 1, wherein: the drying treatment step in the step (4) is as follows: and drying the precipitate at the temperature of 80-90 ℃ until the water content is 5% -7%.

8. The method for preparing the anti-mildew electrostatic flocking fabric as claimed in claim 1, wherein: the electrostatic flocking treatment step in the step (5) is as follows: uniformly coating the adhesive on the surface of the artificial leather, loading the pretreated cashmere into a flocking nozzle, and carrying out electrostatic flocking under the electrostatic voltage of 45-50 kV by using electrostatic flocking equipment.

9. The method for preparing the anti-mildew electrostatic flocking fabric as claimed in claim 1, wherein: the pre-drying treatment step in the step (5) is as follows: and placing the blank body in an oven with the temperature of 80-90 ℃ for pre-drying for 20-30 min.

10. The method for preparing the anti-mildew electrostatic flocking fabric as claimed in claim 1, wherein: the baking treatment step in the step (5) is as follows: and (3) placing the pre-baked blank body in an oven with the temperature of 110-120 ℃ for baking for 1-2 h.

Technical Field

The invention relates to a preparation method of an anti-mildew electrostatic flocked fabric, belonging to the technical field of textile materials.

Background

Electrostatic flocking is achieved by using a high voltage electric field to cause movement of the flock. After the fluff is treated by the electric shock, the fluff is charged under the action of a high-voltage electrostatic field and moves in various ways, and finally the fluff effect is formed by vertically implanting the fluff into the surface of the base material coated with the adhesive under the action of the electric field force.

according to the flocking direction branch of flocking, electrostatic flocking mainly can be divided into three kinds: descent, ascent and side flight. The descending method is that the fluff moves downwards from the upper part under the action of an electrostatic field and is implanted into the base cloth; the rising method is that the fluff moves upwards from the lower part under the action of an electrostatic field and then is implanted into the base cloth; the side flying means that the fluff is implanted into the base material arranged on the right side after moving from left to right in the electrostatic field, or the fluff is implanted into the base material arranged on the left side after moving from right to left in the electrostatic field. The descending electrostatic flocking and the ascending electrostatic flocking are commonly used in the current production.

The process flow of electrostatic flocking is mainly divided into two parts: one part is preparation of fluff, fiber filaments are cut to form fluff short fibers, then the fluff short fibers are treated according to actual requirements, and finally dyeing and electro-dyeing treatment are carried out to prepare the fluff for electrostatic flocking; the other part is electrostatic flocking, wherein a base material needing flocking is firstly subjected to adhesive coating treatment, then fluff is implanted into the base material coated with the adhesive in a high-voltage electrostatic field, and then the base material subjected to flocking is subjected to related after-treatment such as drying, fluff absorption and the like.

The electrostatic flocking product mainly comprises three parts, namely a substrate, an adhesive and fluff, and is the three important parts of electrostatic flocking, and the three parts determine the performance and the quality of the flocking product. The fluff is prepared by cutting or crushing the filament bundle and then carrying out certain treatments such as electro-deposition and the like, and is one of the most critical raw materials in the electrostatic flocking. The adhesive is an important material for realizing the adhesion of the fluff and the base fabric material, plays an important role in the inherent quality of the flocking product and directly influences various performances of the flocking product. The substrate is a base material of the electrostatic flocking product, and has great influence on the quality of the electrostatic flocking final product.

Disclosure of Invention

the technical problems to be solved by the invention are as follows: aiming at the problem that the traditional warm-keeping material is easy to mildew, the preparation method of the anti-mildew electrostatic flocked fabric is provided.

In order to solve the technical problems, the invention adopts the technical scheme that:

(1) Uniformly mixing beta-cyclodextrin and deionized water according to the mass ratio of 1: 5 to obtain suspension, mixing wormwood essential oil and the suspension, keeping the temperature and stirring to obtain mixed liquid, placing the mixed liquid in a refrigerator with the temperature of 3-5 ℃, standing for 20-24 h, performing suction filtration to obtain filter residue, placing the filter residue in an oven with the temperature of 60-70 ℃, performing vacuum drying to constant weight, and cooling to room temperature to obtain wormwood essential oil microemulsion;

(2) Mixing sodium disuccinate, polyethylene glycol-8-glyceryl caprylate/caprate and absolute ethyl alcohol, stirring to obtain a reaction solution, mixing peppermint oil and deionized water, stirring to obtain a base solution, adding the reaction solution into the base solution according to the mass ratio of 1: 1, and continuously stirring at constant temperature for 10-12 h to obtain the peppermint oil microemulsion;

(3) Taking polysiloxane, polyethylene glycol, polymethylene polyphenyl polyisocyanate, wormwood essential oil microemulsion and mint oil microemulsion, mixing and reacting the polysiloxane, the polyethylene glycol, the wormwood essential oil microemulsion and the mint oil microemulsion, cooling to room temperature to obtain a precursor, adding the polymethylene polyphenyl polyisocyanate into the precursor, and stirring at room temperature for 20-30 min to obtain the adhesive;

(4) Sequentially soaking cashmere in deionized water, 50% ethanol solution by mass fraction and an antistatic finishing agent Q-DRY-PT-500 for 10-15 min, filtering to obtain a precipitate, and drying the precipitate to obtain pretreated cashmere;

(5) Uniformly coating the adhesive on the surface of the artificial leather, loading the pretreated cashmere into a flocking nozzle, performing electrostatic flocking treatment to obtain a blank, performing prebaking treatment on the blank to obtain a prebaked blank, performing baking treatment on the prebaked blank, and cooling to room temperature to obtain the anti-mildew electrostatic flocking fabric.

The heat preservation stirring treatment step in the step (1) is as follows: mixing the wormwood essential oil and the suspension according to the mass ratio of 1: 8, and stirring for 1-2 hours at the temperature of 50-60 ℃ and the stirring speed of 300-400 r/min under heat preservation.

The stirring treatment step in the step (2) is as follows: mixing sodium disuccinate, polyethylene glycol-8-glyceryl caprylate/caprate and absolute ethyl alcohol according to the mass ratio of 1: 2, and stirring at the stirring speed of 400-500 r/min for 10-20 min.

The stirring treatment step in the step (2) is as follows: mixing the peppermint oil and the deionized water according to the mass ratio of 1: 5, and stirring for 3-5 min at the temperature of 30-35 ℃ and the stirring speed of 200-300 r/min.

The polysiloxane, the polyethylene glycol, the polymethylene polyphenyl polyisocyanate, the wormwood essential oil microemulsion and the mint oil microemulsion in the step (3) are respectively in the following proportion: respectively weighing 10-20 parts of polysiloxane, 20-30 parts of polyethylene glycol, 1-10 parts of polymethylene polyphenyl polyisocyanate, 1-10 parts of wormwood essential oil microemulsion and 1-10 parts of mint oil microemulsion according to parts by weight.

The mixed reaction step in the step (3) is as follows: mixing polysiloxane, polyethylene glycol, wormwood essential oil microemulsion and mint oil microemulsion, and reacting for 3-5 h at the temperature of 140-150 ℃.

the drying treatment step in the step (4) is as follows: and drying the precipitate at the temperature of 80-90 ℃ until the water content is 5% -7%.

The electrostatic flocking treatment step in the step (5) is as follows: uniformly coating the adhesive on the surface of the artificial leather, loading the pretreated cashmere into a flocking nozzle, and carrying out electrostatic flocking under the electrostatic voltage of 45-50 kV by using electrostatic flocking equipment.

The pre-drying treatment step in the step (5) is as follows: and placing the blank body in an oven with the temperature of 80-90 ℃ for pre-drying for 20-30 min.

The baking treatment step in the step (5) is as follows: and (3) placing the pre-baked blank body in an oven with the temperature of 110-120 ℃ for baking for 1-2 h.

Compared with other methods, the method has the beneficial technical effects that:

(1) the invention adopts microemulsion technology to prepare wormwood essential oil microemulsion and mint oil microemulsion, uses organic siloxane modified polyurethane as adhesive, uses artificial leather as substrate, fixes the wormwood essential oil microemulsion and lavender essential oil microemulsion in the adhesive, and uses static flocking equipment to prepare the anti-mildew static flocking fabric by the cashmere after static finishing; the wormwood essential oil and the mint oil have the functions of deodorization, fishy smell removal, bacteriostasis, corrosion prevention and the like, and the prepared wormwood essential oil microemulsion and the prepared mint oil microemulsion have the release control function and can be stored for a long time without being damaged by worms or mildewed by worms; the polyurethane has good air permeability and moisture permeability, smooth and plump hand feeling and excellent mechanical strength, the organosiloxane has good high temperature resistance, low temperature resistance, oxidation resistance and stability, excellent water resistance, stain resistance and good air permeability, the polyurethane is modified by the organosiloxane, and the wormwood essential oil microemulsion and the lavender essential oil microemulsion are fixed in the organosiloxane, so that the prepared electrostatic flocking fabric has the characteristics of moth prevention and mildew prevention, and has lasting fragrance;

(2) The invention takes beta-cyclodextrin (beta-CD) as a wall material and takes wormwood essential oil as a core material to prepare wormwood essential oil microemulsion, wherein the beta-cyclodextrin (beta-CD) is a cyclic object formed by connecting 7 glucopyranose units by alpha-1, 4 glycosidic bonds and has a special hollow structure; the beta-CD molecule is mainly characterized by having a hydrophobic center and a relatively hydrophilic surface, can be selectively combined with a hydrophobic core material in an aqueous solution to form an inclusion compound through van der Waals force, hydrophobic interaction and hydrogen bonds, namely, a molecular level microcapsule, and has good fluidity and small hygroscopicity;

(3) In the invention, because the groups contained in the polyurethane macromolecules are strong polar groups and the macromolecules also contain polyether or polyester flexible chain segments, the polyurethane has higher mechanical strength and oxidation stability, higher flexibility and rebound resilience, and excellent oil resistance, solvent resistance, water resistance and fire resistance; the organosilicon has a plurality of excellent properties, such as excellent thermal stability, extremely low glass transition temperature, low surface tension and surface energy, outstanding surface hydrophobicity, low solubility parameter, low dielectric constant, chemical and physiological inertia and the like, and the polyurethane is modified by the organosilicon, so that the prepared electrostatic flocking fabric has good temperature resistance, dry cleaning resistance, aging resistance and water resistance;

(4) The electrostatic flocking uses electrostatic effect to achieve flocking purpose, the high voltage electrostatic field interacts with the fluff, the fluff after certain electrostatic treatment generates polarization and electret under the effect of the electrostatic field to be charged, the charged fluff finally makes vertical directional movement after complex movement such as rotation, vibration, translation and the like, and is implanted into the surface of the substrate coated with the adhesive under the effect of the electric field force.

Detailed Description

Uniformly mixing beta-cyclodextrin and deionized water according to the mass ratio of 1: 5 to obtain suspension, mixing wormwood essential oil and the suspension according to the mass ratio of 1: 8, keeping the temperature and stirring at the temperature of 50-60 ℃ and the stirring speed of 300-400 r/min for 1-2 h to obtain mixed liquid, standing the mixed liquid in a refrigerator at the temperature of 3-5 ℃ for 20-24 h, performing suction filtration to obtain filter residue, placing the filter residue in an oven at the temperature of 60-70 ℃, performing vacuum drying to constant weight, and cooling to room temperature to obtain wormwood essential oil microemulsion; mixing sodium disuccinate, polyethylene glycol-8-glyceryl caprylate/caprate and absolute ethyl alcohol according to the mass ratio of 1: 2, stirring at the stirring speed of 400-500 r/min for 10-20 min to obtain a reaction solution, mixing peppermint oil and deionized water according to the mass ratio of 1: 5, stirring at the temperature of 30-35 ℃ and the stirring speed of 200-300 r/min for 3-5 min to obtain a base solution, adding the reaction solution into the base solution according to the mass ratio of 1: 1, and continuously stirring at constant temperature for 10-12 h to obtain the peppermint oil microemulsion; respectively weighing 10-20 parts of polysiloxane, 20-30 parts of polyethylene glycol, 1-10 parts of polymethylene polyphenyl polyisocyanate, 1-10 parts of wormwood essential oil microemulsion and 1-10 parts of mint oil microemulsion, mixing the polysiloxane, the polyethylene glycol, the wormwood essential oil microemulsion and the mint oil microemulsion, reacting for 3-5 hours at the temperature of 140-150 ℃, cooling to room temperature to obtain a precursor, adding the polymethylene polyphenyl polyisocyanate into the precursor, and stirring for 20-30 minutes at the room temperature to obtain the adhesive; soaking cashmere in deionized water, 50% ethanol solution and an antistatic finishing agent Q-DRY-PT-500 for 10-15 min, respectively, performing suction filtration to obtain a precipitate, and drying the precipitate at 80-90 ℃ until the water content is 5-7% to obtain pretreated cashmere; uniformly coating an adhesive on the surface of artificial leather, loading pretreated cashmere into a flocking nozzle, carrying out electrostatic flocking under the electrostatic voltage of 45-50 kV through electrostatic flocking equipment to obtain a blank, placing the blank in an oven at the temperature of 80-90 ℃ for pre-drying for 20-30 min to obtain a pre-dried blank, placing the pre-dried blank in an oven at the temperature of 110-120 ℃ for baking for 1-2 h, and cooling to room temperature to obtain the anti-mildew electrostatic flocking fabric.