Preparation method of multifunctional glue-sprayed wadding cotton

Abstract

The invention relates to a preparation method of glue-sprayed wadding cotton, in particular to a preparation method of multifunctional glue-sprayed wadding cotton. Comprising the following steps: 1) preparing a multifunctional finishing mother liquor agent: adding nano polyaniline fibers, a dispersing agent, polyacrylate and a coupling agent into water, fully stirring, and carrying out ball milling to obtain the multifunctional finishing mother liquor agent; (2) preparing multifunctional glue: adding the multifunctional finishing mother liquor agent and non-woven adhesive GH spinning cotton glue into water, and fully stirring to obtain the multifunctional glue; 3) selecting corresponding bat wool according to use requirements; (4) spraying the bat wool: uniformly spraying the multifunctional glue obtained in the step (2) on one side of the bat wool, and uniformly spraying non-woven adhesive GH spinning cotton glue on the other side of the bat wool; and 5) drying the sprayed wadding cotton: putting the sprayed wadding cotton into a dryer, and drying to obtain the multifunctional glue-sprayed wadding cotton. The thermal insulation performance of the bat cotton material is improved, and the light and fluffy texture of the bat cotton material can be kept.

Description

Technical Field

[0001] The invention relates to a method for preparing glue-sprayed cotton wool, and in particular to a method for preparing multifunctional glue-sprayed cotton wool. Background Art

[0002] With the continuous progress of society, the rapid development of science and technology, and the significant improvement in the quality of life, people's demand for textiles has gradually shifted from the basic function of keeping warm and covering the body to the pursuit of fashion, functionality, lightness, personalization and health care functions. This change in consumption trends has greatly promoted the rapid development of the textile industry in the field of research and development of new functional materials. Among them, thermal insulation materials, as an important branch of the textile industry, have made significant progress in their research and development and application.

[0003] The core of thermal insulation materials lies in their light and fluffy thermal insulation properties, which are usually made of hollow or highly curled fibers, such as polyester, acrylic staple fibers and microfibers. Internationally, European and American countries focus on the development of hollow fibers, microfibers and windproof laminated fabrics to improve the performance and comfort of thermal insulation materials. Russia innovatively uses ecological spunlace technology to produce high-strength, high-warmth and breathable non-woven thermal insulation materials. The United States has introduced double-layer thermal insulation non-woven fabrics and a variety of wadding thermal insulation materials that meet different needs, further enriching the market choice of thermal insulation materials. Japan has significantly enhanced the heat storage and versatility of thermal insulation materials by adding ceramic particles and optimizing the structure.

[0004] In China, the development of thermal insulation materials is also rapid. From traditional natural raw materials such as wool, cotton wool, down, etc., to the rapidly expanding variety of synthetic fibers and their composite materials, such as imitation silk cotton, super down cotton, far infrared thermal insulation fabrics, antibacterial negative ion thermal insulation cotton, etc., these new materials not only inherit the thermal insulation properties of traditional materials, but also show significant advantages in terms of light weight, breathability, windproof, mildew resistance, and washability. These new thermal insulation materials are widely used in clothing, bedding and other fields, satisfying consumers' pursuit of high-quality life.

[0005] However, although the existing thermal insulation materials have made some breakthroughs in performance, there are still some technical problems that need to be solved. For example, how to further improve the thermal insulation performance of thermal insulation materials while maintaining their light and fluffy texture; how to give thermal insulation materials more functions, such as microcirculation health care, negative ion release, anti-static, etc.; how to ensure that these new materials maintain stability and durability during processing and use. Therefore, the development of a multifunctional, high-performance thermal insulation material has become a technical problem that the textile industry needs to overcome. Summary of the invention

[0006] The purpose of the present invention is to solve the technical problem of how to further improve the thermal insulation performance of thermal insulation materials while maintaining their light and fluffy texture, and to provide a preparation method of multifunctional spray-bonded cotton.

[0007] To solve the above technical problems, the technical solutions provided by the present invention are as follows:

[0008] A method for preparing multifunctional spray-bonded cotton wool comprises the following steps:

[0009] 1) Configure multifunctional finishing agent

[0010] In terms of mass percentage, 8-16 wt% of nano-polyaniline fiber, 1-3 wt% of dispersant, 20-35 wt% of polyacrylate, 0.8-1.2 wt% of coupling agent, and the balance of water are weighed;

[0011] The nano-polyaniline fiber, dispersant, polyacrylate and coupling agent are added into water and fully stirred and ball-milled to obtain a multifunctional finishing mother liquid;

[0012] 2) Configure multifunctional glue

[0013] In terms of mass percentage, 3-5 wt% of the multifunctional finishing mother liquid obtained in step 1), 9-11 wt% of the non-woven adhesive GH spinning cotton glue, and the balance of water are weighed;

[0014] Adding a multifunctional finishing masterbatch and non-woven adhesive GH spinning cotton glue into water and stirring them thoroughly to obtain a multifunctional glue;

[0015] 3) Select the corresponding cotton wool according to the usage requirements;

[0016] 4) Spraying cotton

[0017] Evenly spray the multifunctional glue obtained in step 2) on one side of the cotton wool, and evenly spray the non-woven adhesive GH spinning cotton glue on the other side;

[0018] 5) Dry the cotton wool after spraying

[0019] The sprayed cotton wool is placed in a dryer and dried at 90-110° C. After drying, a multifunctional sprayed cotton wool is obtained.

[0020] Further, step 1) is specifically as follows:

[0021] 11) In terms of mass percentage, 8-16 wt% of nano-polyaniline fiber, 1-3 wt% of dispersant, 20-35 wt% of polyacrylate, 0.8-1.2 wt% of coupling agent, and the balance of water are weighed as raw materials;

[0022] 12) Add water into container A and heat container A to make the water temperature reach 70°C;

[0023] 13) Add nano-polyaniline fibers and dispersant into container A, and vibrate for 90 minutes using an ultrasonic oscillator; after the oscillation is completed, stir for 40 to 60 minutes to make the nano-polyaniline fibers completely and evenly dispersed;

[0024] 14) At 70°C, add polyacrylate and coupling agent into container A in sequence and stir for 40 to 60 minutes to make them completely and evenly dispersed;

[0025] 15) Add the liquid in container A into a ball mill and mill for 2 hours to obtain a multifunctional finishing mother liquid.

[0026] Further, step 2) is specifically as follows:

[0027] 21) In terms of mass percentage, 3-5 wt% of a multifunctional finishing mother liquid, 9-11 wt% of a non-woven adhesive GH spinning cotton glue, and the remainder of water are weighed as raw materials for preparing the multifunctional glue;

[0028] 22) Add the raw materials for preparing the multifunctional glue into container B and stir for 20 to 30 minutes to allow the materials to be completely and evenly dispersed to obtain the multifunctional glue.

[0029] Further, step 4) is specifically as follows:

[0030] Multifunctional glue is evenly sprayed on one side of the cotton wool at a spraying amount of 5-8 g / m2, and non-woven adhesive GH spinning cotton glue is evenly sprayed on the other side of the cotton wool at a spraying amount of 5-8 g / m2.

[0031] Furthermore, in steps 13), 14) and 22), a high-speed disperser is used for stirring, and the stirring speed is 2500 r / min.

[0032] Furthermore, in step 1), the nano-polyaniline fiber has a particle size of 60-80 nm, a length of 2-3 μm, a purity of 99%, and an electrical conductivity of 11.60 S.cm-1.

[0033] Furthermore, in step 13), the power of the ultrasonic oscillator is 8000w.

[0034] Furthermore, in step 14), the liquid in container A is heated by a constant temperature heater to maintain its temperature at 70°C.

[0035] Compared with the prior art, the present invention has the following beneficial effects:

[0036] The preparation method of the multifunctional spray-adhesive cotton wool provided by the present invention comprises the following steps: a multifunctional finishing mother liquid agent with nano-polyaniline fibers is prepared, a multifunctional adhesive is prepared with the multifunctional finishing mother liquid agent, the multifunctional adhesive is sprayed on one side of the cotton wool, and the non-woven adhesive GH spinning cotton adhesive is sprayed on the other side; due to the presence of the nano-polyaniline fibers, the cotton wool surface sprayed with the multifunctional adhesive can emit far infrared rays to the human body at a certain frequency, the emission band is 750-16000nm, the emissivity is ≥0.87, the emission power is 456W / ㎡, the far infrared rays radiate heat to the human body through the cotton wool, the far infrared radiation surface temperature rises by 4-6°C, so that the human body feels warm; and a large amount of negative ions are generated at the same time, and the negative ion concentration is 2900 / cm 3 , the surface charge density is ≤1.2μC / ㎡, forming an oxygen-rich microclimate environment and generating no static electricity; to put it simply, there is fluffy warm cotton outside the human body to block the loss of human heat energy, and at the same time there is high-intensity infrared radiation, which not only improves the thermal insulation performance of the cotton material, but also maintains its light and fluffy texture. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 is a flow chart of an embodiment of the present invention. DETAILED DESCRIPTION

[0038] The technical solutions in the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] like Figure 1 As shown, the preparation method of the multifunctional spray-bonded cotton of the present application comprises the following specific steps:

[0040] 1) Configure multifunctional finishing agent

[0041] In terms of mass percentage, 8-16 wt% of nano-polyaniline fiber, 1-3 wt% of dispersant, 20-35 wt% of polyacrylate, 0.8-1.2 wt% of coupling agent, and the balance of water are weighed as raw materials;

[0042] The particle size of the nano-polyaniline fiber is 60-80nm, the length is 2-3μm, the purity is 99%, and the conductivity is 11.60S.cm-1; the dispersant is a chelating dispersant; and the coupling agent is gamma-aminopropyltriethoxysilane.

[0043] Add water into container A, and heat the liquid in container A by a constant temperature heater to keep its temperature at 70°C;

[0044] Add nano-polyaniline fibers and dispersant into container A, and vibrate for 90 minutes by an ultrasonic oscillator with a power of 8000w; after the oscillation is completed, use a high-speed disperser to stir at a speed of 2500r / min for 40 to 60 minutes to make the nano-polyaniline fibers completely and evenly dispersed;

[0045] At 70°C, add polyacrylate and coupling agent into container A in sequence, and stir at 2500r / min for 40 to 60 minutes using a high-speed disperser to make them completely and evenly dispersed;

[0046] The liquid in container A was added into a ball mill and ball-milled for 2 hours to obtain a multifunctional finishing mother liquid.

[0047] 2) Configure multifunctional glue

[0048] In terms of mass percentage, 3-5 wt% of a multifunctional finishing mother liquid, 9-11 wt% of a non-woven adhesive GH spinning cotton glue, and the rest of water are weighed as raw materials for preparing the multifunctional glue;

[0049] The raw materials for preparing the multifunctional glue are added into container B, and stirred at a speed of 2500 r / min for 20 to 30 minutes using a high-speed disperser to make the materials completely and evenly dispersed to obtain the multifunctional glue.

[0050] 3) Select the appropriate cotton wool according to your needs.

[0051] 4) Spraying cotton

[0052] Multifunctional glue is evenly sprayed on one side of the cotton wool at a spraying amount of 5-8 g / m2, and non-woven adhesive GH spinning cotton glue is evenly sprayed on the other side of the cotton wool at a spraying amount of 5-8 g / m2.

[0053] 5) Dry the cotton wool after spraying

[0054] The sprayed cotton wool is placed in a dryer and dried at 90-110° C. After drying, a multifunctional sprayed cotton wool is obtained.

[0055] The multifunctional spray-bonded cotton wool obtained in this embodiment not only has the properties of fluffiness, high compression resilience, resistance to dry and wet washing, light weight and warmth retention of conventional cotton wool, but also emits far infrared rays to the human body at a certain frequency, and increases the heat of the far infrared rays radiated to the human body through the cotton wool, thereby making the human body feel warm; at the same time, the multifunctional spray-bonded cotton wool can generate a large amount of negative ions, form an oxygen-rich microclimate environment, and does not generate static electricity; the multifunctional spray-bonded cotton wool obtained in this embodiment can be used for processing and manufacturing cotton clothes, ski jackets, space suits, quilts, sleeping bags and other supplies, as well as certain industrial supplies.

[0056] Example 1

[0057] 1) Configure multifunctional finishing agent

[0058] In terms of mass percentage, 7.9 wt % of nano-polyaniline fiber, 1.0 wt % of dispersant, 21.1 wt % of polyacrylate, 0.82 wt % of coupling agent, and the balance of water are weighed as raw materials;

[0059] The particle size of the nano-polyaniline fiber is 60-80nm, the length is 2-3μm, the purity is 99%, and the conductivity is 11.60S.cm-1; the dispersant is a chelating dispersant; and the coupling agent is gamma-aminopropyltriethoxysilane.

[0060] Add water into container A, and heat the liquid in container A by a constant temperature heater to keep its temperature at 70°C;

[0061] Add nano-polyaniline fibers and dispersant into container A, and vibrate for 90 minutes by an ultrasonic oscillator with a power of 8000w; after the oscillation is completed, use a high-speed disperser to stir at a speed of 2500r / min for 50 minutes to make the nano-polyaniline fibers completely and evenly dispersed;

[0062] At 70°C, add polyacrylate and coupling agent into container A in sequence, and stir at 2500r / min for 50 minutes using a high-speed disperser to make them completely and evenly dispersed;

[0063] The liquid in container A was added into a ball mill and ball-milled for 2 hours to obtain a multifunctional finishing mother liquid.

[0064] 2) Configure multifunctional glue

[0065] In terms of mass percentage, 3.1 wt% of a multifunctional finishing masterbatch, 9.0 wt% of a non-woven adhesive GH spinning cotton glue, and the remainder of water are weighed as raw materials for preparing the multifunctional glue;

[0066] The raw materials for preparing the multifunctional glue were added into container B, and stirred at a speed of 2500 r / min for 22 minutes using a high-speed disperser to make the materials completely and evenly dispersed to obtain the multifunctional glue.

[0067] 3) Select the appropriate cotton wool according to your needs.

[0068] 4) Spraying cotton

[0069] Multifunctional glue is evenly sprayed on one side of the cotton wool at a spraying amount of 6.5 g / m2, and non-woven adhesive GH spinning cotton glue is evenly sprayed on the other side of the cotton wool at a spraying amount of 6.5 g / m2.

[0070] 5) Dry the cotton wool after spraying

[0071] The sprayed cotton wool is placed in a dryer and dried at 100°C; after drying, a multifunctional sprayed cotton wool is obtained.

[0072] The raw materials of Example 2-3 are added in the following proportions, and other specific operation steps are the same as those of Example 1.

[0073] Example 2

[0074] The composition of the multifunctional finishing mother liquid agent is: 13.9wt% of nano-polyaniline fiber, 2.1wt% of dispersant, 26.4wt% of polyacrylate, 1.15wt% of coupling agent, and the balance of water;

[0075] The components of the multifunctional adhesive are: 3.85 wt% of multifunctional finishing masterbatch, 10.2 wt% of non-woven adhesive GH spinning cotton adhesive, and the balance of water.

[0076] Example 3

[0077] The composition of the multifunctional finishing mother liquid agent is: 15.95wt% of nano polyaniline fiber, 3.0wt% of dispersant, 34.9wt% of polyacrylate, 1.21wt% of coupling agent, and the balance of water;

[0078] The components of the multifunctional adhesive are: 5.0 wt% of a multifunctional finishing masterbatch, 11.01 wt% of non-woven adhesive GH spinning cotton adhesive, and the balance of water.

[0079] The multifunctional spray-bonded cotton obtained in Examples 1 to 3 was prepared at a rate of 100 g / m 2 , 200g / m 2 , 300g / m 2 , 400g / m 2 The same amount of cotton as in Examples 1 to 3 was used to make cotton clothes of the same size; and the same cotton as in Examples 1 to 3 was used to make cotton clothes of the same size at 100 g / m 2 , 200g / m 2 , 300g / m 2 , 400g / m 2 The amount of is used to make cotton clothes of the same size as Examples 1 to 3.

[0080] The same tester was tested under the same conditions (same body temperature) for the temperature difference between the inside and outside of the cotton-padded clothes of Examples 1 to 3 and ordinary cotton-padded clothes at -8°C. The specific results are shown in the following table:

[0081] Table 1: Temperature difference detection results

[0082] <![CDATA[100g / m 2 ]]> <![CDATA[200g / m 2 ]]> <![CDATA[300g / m 2 ]]> <![CDATA[400g / m 2 ]]> Example 1 30.8℃ 31.2℃ 32.3℃ 33.2℃ Example 2 32.1℃ 32.5℃ 33.1℃ 33.9℃ Example 3 32.7℃ 33.8℃ 34.5℃ 34.9℃ Comparative Example 29.3℃ 29.8℃ 31.1℃ 31.6℃

[0083] It can be seen from Table 1 that the cotton-padded clothes made of the multifunctional spray-bonded cotton obtained in Examples 1 to 3 can increase the internal temperature of the cotton-padded clothes by 3.4° C., thereby enhancing the warmth retention performance, compared with the cotton-padded clothes made of ordinary cotton-padded clothes.

[0084] Quantum theory holds that when matter is irradiated by incident light, its molecules will increase their energy in a leap-like manner after absorbing light energy. That is, the change in the energy of matter is quantized, and the energy hν of each photon depends on the energy difference ΔE between two energy levels.

[0085] ΔE=E 2 -E 1 =hν

[0086] In the formula, h is Planck's constant, υ is the frequency of light, E 2 、E 1 is the energy of the initial energy level and the final energy level.

[0087] Infrared radiation originates from the change of the internal motion of the molecules. The forms of internal motion of molecules are very complex, mainly including the motion of electrons around the nucleus, the translation of molecules, the vibration of each nucleus in the molecule near its equilibrium position, and the rotation of the entire molecule around a certain symmetry axis. Since the translation energy is only a function of temperature, there is no selective interaction between the molecular translation and electromagnetic radiation, and no discrete infrared spectrum is produced. The study mainly considers the molecular spectra produced by the internal motion of electrons, the vibration and rotation of the nuclei in the molecules.

[0088] For a molecule in a certain state, its energy is the electron energy E e , vibration energy E ν and rotational energy E γ The sum of the three is

[0089] E=E e +E ν +E γ

[0090] When a molecule transitions from a high energy level E' to a low energy level E', it radiates photons with a frequency of:

[0091]

[0092] Where h is Planck's constant.

[0093] Quantum theory research shows that the essence of material absorption and emission of infrared light is the result of the interaction between the change of molecular dipole moment and the oscillating electric field of light. The reason why materials radiate is due to the transition between different energy levels of their constituent atoms, molecules or ions. In the short-wave region, it is mainly related to the transition of their electrons, while in the long-wave region, it is related to the vibration characteristics of the crystal lattice. The radiation generated by the change of dipole moment when molecules vibrate or rotate is the mechanism of material radiation. Pure materials, such as metal oxides, nitrides, carbides, etc., have extremely strong infrared activated polarization vibrations. At the same time, there are extremely strong vibration absorption bands in their infrared spectrum regions. The existence of this absorptive vibration determines the infrared radiation performance of the material. The infrared high radiation band of pure materials is often in the two-phonon combination absorption band with medium absorption intensity, including part of the multi-phonon combination region, which is the combination frequency absorption of two-phonons or multi-phonons. Its radiation band is 5-10um, and the spectrum roughly extends from the strong resonance long wave to the entire two-phonon combination frequency region of the short wave.

[0094] Infrared rays are located between visible light and microwaves, and can be subdivided into near infrared, mid-infrared, and far infrared. It is generally believed that far infrared radiation heating technology with a wavelength between 4 and 1000um is called far infrared. Photons have characteristics and functions. When the energy of infrared photons with a wavelength between 2.5 and 30um is 0.04 to 0.5eV, they can hardly play a chemical role, but can only accelerate the vibration of molecules or the lattice vibration of crystals. The basic particles that make up matter, electrons, atoms, or molecules, are constantly moving even in the ground state - vibrating or rotating, and these movements have their own inherent frequencies.

[0095] When encountering infrared radiation of a certain wave number, if the wave number transmitted by the infrared is equal to the natural frequency of the basic particle, a situation similar to the central vibration motion in vibration theory will occur, and the particle will absorb the infrared and further intensify the motion. In other words, for materials sensitive to infrared rays, their molecules and atoms can attract infrared rays with the same frequency as their own natural motion, which not only causes the transition of the kinetic energy level, but also expands the various motion amplitudes centered on the equilibrium position. The internal energy of the particle increases, and the macroscopic reflection of the intensified motion of the microstructure particles is the increase in the temperature of the object. If the frequency difference between the two is large, the infrared rays will not be absorbed but may be reflected or passed through. It can be seen that improving the absorption rate of the incident radiation heat of the heated material is closely related to the spectral frequency. A reasonable infrared heating radiation effective spectral segment should be established to achieve the best match with the heated product (this is the "optimal spectral matching principle").

[0096] The so-called "matching" means opening the "radiation window" that is aligned with the "absorption window" of the heated object very wide, and closing the "radiation window" that is not aligned very small. Since it is impossible to absolutely match the monochromatic spectrum of radiation with the monochromatic spectrum of absorption, in practical applications, the best choice of far-infrared radiator and radiation temperature is adopted to make the "interval emissivity" of the radiator and the "interval absorption rate" of the heated product match the corresponding "interval emissivity" of the incident interval. This is the mechanism of infrared radiation heating.

[0097] Nanomaterials have good infrared absorption performance within a certain size range due to the quantum size effect and tunneling effect caused by their special structure. Nanomaterials refer to materials whose characteristic size of material components is in the range of 1-100nm. When the size of a particle is as small as nanometer level, its microstructure and performance are different from the microscopic system of atoms and molecules, and also different from the macroscopic system of large particle materials that show this characteristic property. Instead, it is a transitional system between the two. Nanoparticles are small in size, large in specific surface area, and have very high surface energy, which has a great influence on their chemical properties. Experiments have shown that when the particle dispersion is increased to a certain extent, as the particle diameter decreases, the ratio of the number of atoms on the particle surface to the total number of atoms increases sharply. When the particle size is reduced to 5nm, the proportion of surface atoms can reach 50%. As the number of surface atoms increases and the number of atoms in the particle decreases, the electron energy levels in the energy band are split, and the energy level interval after the split is within the energy range of infrared rays (1×12 -2 -1×10 -5 eV), thus leading to new infrared absorption channels. Nanomaterials have small size effects, surface interface effects, quantum size effects, and macroscopic quantum tunneling effects due to their own structural characteristics. Therefore, compared with conventional materials of the same components, they have many unique properties in catalysis, optics, magnetism, mechanics, etc., and show good development prospects in infrared absorption and emission.

[0098] The total radiation power M(T) of all wavelengths emitted by an object per unit surface area to the entire hemispherical space changes with its temperature.

[0099] M(T)=ε λ σT 4

[0100] Where σ=5.6697×10-8w / (m 2 ·k 4 )

[0101] The above formula shows that any object with a temperature higher than zero degrees Kelvin will spontaneously emit infrared thermal radiation, and the total radiation power emitted per unit surface area of ​​the object is proportional to the emissivity and the fourth power of the Kelvin temperature. Moreover, as long as there is a small change in temperature, it will cause a large change in the radiation power emitted by the object.

[0102] With the rapid development of infrared technology, the research on high-emissivity materials has become a hot topic. The selection of the basic wavelength of far-infrared products is very important. The wavelength radiated by the product must be consistent with the absorption wavelength of the radiating object (i.e., spectral matching) to produce a resonance effect, which is the key to the quality of the product.

[0103] The thermal energy of nano-infrared cotton wool should include two parts. One part is the thermal energy generated by the fluffy cotton wool itself. It is achieved by increasing the air layer of the cotton wool, reducing the air flow in the air layer, and using thermal insulation materials to increase the thermal resistance of the cotton wool as much as possible, and reducing the rapid conduction of the heat energy of the human body. In fact, it is to reduce the heat energy loss of the human body. The measurement indicators are the cro value, the thermal insulation rate, and the thermal resistance. The other part is the infrared radiation energy of the cotton wool. It is the cotton wool that has been nano-infrared sorted. In addition to the above functions, the cotton wool also emits infrared rays to the human body at a certain frequency, and increases the heat to the human body through external radiation, so that the human body feels warm. It is like the human body is irradiated by infrared light in a cold environment. The measurement indicator is the infrared radiation energy density.

[0104] The principle of this kind of cotton wool can be simply described as follows: there is fluffy warm cotton wool outside the human body to block the loss of human heat energy, and at the same time there is high-intensity infrared radiation to enhance the thermal insulation performance of the cotton wool.

[0105] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A method for preparing multifunctional spray-bonded cotton, characterized in that: The steps include: 1) Configure multifunctional finishing agent In terms of mass percentage, 8-16 wt% of nano-polyaniline fiber, 1-3 wt% of dispersant, 20-35 wt% of polyacrylate, 0.8-1.2 wt% of coupling agent, and the balance of water are weighed; The nano-polyaniline fiber, dispersant, polyacrylate and coupling agent are added into water and fully stirred and ball-milled to obtain a multifunctional finishing mother liquid; 2) Configure multifunctional glue In terms of mass percentage, 3-5 wt% of the multifunctional finishing mother liquid obtained in step 1), 9-11 wt% of the non-woven adhesive GH spinning cotton glue, and the balance of water are weighed; Adding a multifunctional finishing masterbatch and non-woven adhesive GH spinning cotton glue into water and stirring them thoroughly to obtain a multifunctional glue; 3) Select the corresponding cotton wool according to the usage requirements; 4) Spraying cotton Evenly spray the multifunctional adhesive obtained in step 2) on one side of the cotton wool, and evenly spray the non-woven adhesive GH spinning cotton adhesive on the other side; 5) Dry the cotton wool after spraying The sprayed cotton wool is placed in a dryer and dried at 90-110° C. After drying, multifunctional sprayed cotton wool is obtained.

2. The method for preparing the multifunctional spray-bonded cotton according to claim 1, characterized in that: Step 1) is specifically as follows: 11) In terms of mass percentage, 8-16 wt% of nano-polyaniline fiber, 1-3 wt% of dispersant, 20-35 wt% of polyacrylate, 0.8-1.2 wt% of coupling agent, and the balance of water are weighed as raw materials; 12) Add water into container A and heat container A to make the water temperature reach 70°C; 13) Add nano-polyaniline fibers and dispersant into container A, and vibrate for 90 minutes using an ultrasonic oscillator; after the oscillation is completed, stir for 40 to 60 minutes to make the nano-polyaniline fibers completely and evenly dispersed; 14) At 70°C, add polyacrylate and coupling agent into container A in sequence and stir for 40 to 60 minutes to make them completely and evenly dispersed; 15) Add the liquid in container A into a ball mill and mill for 2 hours to obtain a multifunctional finishing mother liquid.

3. The method for preparing the multifunctional spray-bonded cotton according to claim 1, characterized in that: Step 2) is specifically as follows: 21) In terms of mass percentage, 3-5 wt% of a multifunctional finishing mother liquid, 9-11 wt% of a non-woven adhesive GH spinning cotton glue, and the remainder of water are weighed as raw materials for preparing the multifunctional glue; 22) Add the raw materials for preparing the multifunctional glue into container B and stir for 20 to 30 minutes to allow the materials to be completely and evenly dispersed to obtain the multifunctional glue.

4. The method for preparing the multifunctional spray-bonded cotton according to claim 1, characterized in that: Step 4) is specifically as follows: Multifunctional glue is evenly sprayed on one side of the cotton wool at a spraying amount of 5-8 g / m2, and non-woven adhesive GH spinning cotton glue is evenly sprayed on the other side of the cotton wool at a spraying amount of 5-8 g / m2.

5. The method for preparing the multifunctional spray-bonded cotton according to claim 1, characterized in that: In steps 13), 14) and 22), a high-speed disperser is used for stirring, and the stirring speed is 2500 r / min.

6. The method for preparing the multifunctional spray-bonded cotton according to claim 2, characterized in that: In step 1), the particle size of the nano-polyaniline fiber is 60-80 nm, the length is 2-3 μm, the purity is 99%, and the conductivity is 11.60 S.cm-1.

7. The method for preparing the multifunctional spray-bonded cotton wool according to claim 2, characterized in that: In step 13), the power of the ultrasonic oscillator is 8000w.

8. The method for preparing the multifunctional spray-bonded cotton according to claim 2, characterized in that: In step 14), the liquid in container A is heated by a constant temperature heater to maintain its temperature at 70°C.

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