阅读说明：本技术 一种溶喷布喷丝模具清洗液复合配方 (Composite formula of cleaning solution for melt-blown cloth spinning die ) 是由 金亚东 宋澄杰 徐东波 于 2020-07-23 设计创作，主要内容包括：一种溶喷布喷丝模具清洗液复合配方,该配方包括：三氯甲烷、二甲亚砜、二甲苯、氘代邻二氯苯和二甲基甲酰胺中的至少其中一者,其中,三氯甲烷的重量百分比含量为10-80％,氘代邻二氯苯的重量百分比含量为0.1-30％,二甲亚砜的重量百分比含量为0.1-5％,二甲苯的重量百分比含量为0.1-25％,二甲基甲酰胺的重量百分比含量为0.1-5％,本发明的溶喷布喷丝模具清洗液复合配方能溶喷布喷丝模具微孔内的残留聚丙烯溶解更加充分,提高超声波清洗效率,实现喷丝模具微孔堵塞的快速清理,提升溶喷布喷丝模具重复使用寿命。(A composite formula of a cleaning solution for a solution-jet cloth spinning die comprises the following components: the cleaning solution for the solution-spraying spinning die disclosed by the invention can be used for dissolving residual polypropylene in the micropores of the solution-spraying spinning die more fully, improving the ultrasonic cleaning efficiency, realizing the rapid cleaning of the blockage of the micropores of the spinning die and prolonging the repeated service life of the solution-spraying spinning die, wherein the weight percentage content of the trichloromethane is 10-80%, the weight percentage content of the deuterated o-dichlorobenzene is 0.1-30%, the weight percentage content of the dimethyl sulfoxide is 0.1-5%, the weight percentage content of the xylene is 0.1-25%, and the weight percentage content of the dimethyl formamide is 0.1-5%.)

1. The compound formula of the cleaning solution for the solution-jet cloth spinning die is characterized by comprising the following components in parts by weight: at least one of trichloromethane, dimethyl sulfoxide, xylene, deuterated o-dichlorobenzene and dimethylformamide, wherein the trichloromethane accounts for 10-80 wt%, the deuterated o-dichlorobenzene accounts for 0.1-30 wt%, the dimethyl sulfoxide accounts for 0.1-5 wt%, the xylene accounts for 0.1-25 wt%, and the dimethylformamide accounts for 0.1-5 wt%.

2. The composite formulation of claim 1, further comprising: at least one of n-heptane, trichlorobenzene and tetrahydrofuran.

3. The energy-saving emission-reducing composite formula according to claim 2, wherein the formula comprises: 0.1-50% of n-heptane, 0.1-50% of trichlorobenzene and 0.1-5% of tetrahydrofuran.

4. The composite formulation of claim 1, further comprising: at least one of isoamyl acetate, carbon tetrachloride, cyclohexanone, ethyl acetate and methylene chloride.

5. The composite formulation of claim 1, wherein the formulation comprises both tetrahydrofuran and isoamyl acetate, and the isoamyl acetate is greater than the tetrahydrofuran.

6. The composite formulation of a solution jet spinning die cleaning solution according to any one of claims 1 to 5, further comprising: rare earth or rare earth protein, wherein the weight percentage content of the rare earth or the rare earth protein is 0.5-25%.

Technical Field

The invention relates to the technical field of cleaning of a solution-jet cloth spinning die. More particularly, the invention relates to a cleaning liquid compound formula applied to cleaning a solution-jet cloth spinning die.

Background

The melt-blown non-woven fabric process is characterized in that polymer solution trickle extruded from spinneret orifices of a die head is drafted by high-speed hot air to form superfine fibers which are condensed on a roller and bonded by the die head, the die head is the most critical part in melt-blown equipment, and the uniformity of a product is closely related to the die head, so that the processing precision requirement is high. The conventional treatment method comprises the steps of detaching the spinneret plate of the melt-blowing machine, removing internal plastic, heating the spinneret plate in an oven for 4 hours at the temperature of 350 ℃, cleaning coke ash in micropores by using a silver needle, blowing through the coke ash by using high-pressure air, and assembling a die for debugging and production. The method has the disadvantages that 1, the time consumption is long, the workload is large, 2, the die is easy to deform when heated, 3, the spinneret orifices are easy to damage when cleaned by silver needles, and 4, the side orifices are deformed and broken due to incomplete manual cleaning, so that the die is scrapped.

Therefore, there is a need to develop a compound formula of a solution-jet spinning die cleaning solution with higher cleaning efficiency and lower cost to solve the problems in the prior art.

Disclosure of Invention

The object of the present invention is to solve at least one of the above problems, and the object is achieved by the following technical solutions:

according to a first aspect of the invention, a composite formulation of a solution-spun spinneret cleaning solution comprises: at least one of trichloromethane, dimethyl sulfoxide, xylene, deuterated o-dichlorobenzene and dimethylformamide, wherein the trichloromethane accounts for 10-80 wt%, the deuterated o-dichlorobenzene accounts for 0.1-30 wt%, the dimethyl sulfoxide accounts for 0.1-5 wt%, the xylene accounts for 0.1-25 wt%, and the dimethylformamide accounts for 0.1-5 wt%.

According to a preferred embodiment of the invention, the formulation further comprises: at least one of n-heptane, trichlorobenzene and tetrahydrofuran.

According to a further preferred embodiment of the invention, the formulation comprises: 0.1-50% of n-heptane, 0.1-50% of trichlorobenzene and 0.1-5% of tetrahydrofuran.

According to a further preferred embodiment of the present invention, the formulation further comprises: at least one of isoamyl acetate, carbon tetrachloride, cyclohexanone, ethyl acetate and methylene chloride. According to a further preferred embodiment of the invention, the formulation comprises both tetrahydrofuran and isoamyl acetate, and the content of isoamyl acetate is greater than the content of tetrahydrofuran.

According to a further preferred embodiment of the invention, the formulation further comprises: rare earth or rare earth protein, wherein the weight percentage content of the rare earth or the rare earth protein is 0.5-25%.

Compared with the prior art, the invention has the beneficial effects that: can dissolve the residual polypropylene in the micropores of the melt-blown cloth spinning die. The dissolving is more sufficient under the action of ultrasonic cleaning within the temperature range of 90-126 ℃, the ultrasonic cleaning efficiency is improved, the blockage of micropores of the spinning die is quickly cleaned, and the repeated service life of the spinning die of the melt-blown spinning cloth is prolonged.

Detailed Description

Reference will now be made in detail to the exemplary embodiments of the present disclosure, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.

The compound formula of the cleaning solution for the spray spinning die takes Trichloromethane (Trichloromethane) as a main component. A colorless transparent liquid. Has special odor. The taste is sweet. High refraction, non-combustion, heavy weight, easy volatilization. The pure product is sensitive to light and can react with oxygen in the air when being irradiated by light to be gradually decomposed to generate virulent phosgene (carbonyl chloride) and hydrogen chloride. 0.6-1% of ethanol can be added as a stabilizer. Can be mixed with ethanol, benzene, diethyl ether, petroleum ether, carbon tetrachloride, carbon disulfide and oils, and dissolved in 200ml of water at 25 deg.C. Relative density 1.4840. Freezing point-63.5 ℃. The boiling point is 61-62 ℃. Refractive index 1.4476. Owing to the above characteristics, methyl chloride is most easily hydrolyzed into formic acid and HCl, and the stability is poor, and thermal decomposition occurs at 450 ℃ or higher, and further chlorination can be conducted to CCl 4. The trichloromethane is not easy to burn, is easy to dissolve in gasoline and diesel oil, is easy to prepare into a solvent, and has a certain clear washing effect, and preferably, the trichloromethane accounts for 10-80% by weight, more preferably 10-70% by weight, even more preferably 30-70% by weight, and even more preferably 40-60% by weight of the composite formula of the cleaning solution for the spinneret and spinning die.

The compound formula of the cleaning solution for the cloth-spraying spinning die also contains n-Heptane (n-Heptane) and/or Trichlorobenzene (1,2, 3-trichlorobenzzene) and tetrahydrofuran (PTMG and PTMEG). The n-heptane, trichlorobenzene and tetrahydrofuran have the advantages of low cost, certain decontamination performance and no damage to metal; the disadvantage is that the melting point (60-70 ℃) is lower, which can bring influence to the preparation; preferably, the content of n-heptane in the energy-saving and emission-reducing composite formula is 0.1-50% by weight, preferably, the content of trichlorobenzene in the energy-saving and emission-reducing composite formula is 0.1-50% by weight, and further preferably 3-7% by weight. According to a preferred embodiment of the invention, the content of isoamyl acetate in the composite formulation of a die cleaning solution for spincoating is greater than the content of tetrahydrofuran. Preferably, the compound formula of the cleaning solution for the spray spinning die further contains rare earth or rare earth protein, and the content of the rare earth or the rare earth protein in percentage by weight is 0.5-25%.

The contents of the above components can be implemented in the following manner:

on the basis, namely in the proportioning mode of YT-100205-1 to YT-100205-10, according to the first embodiment of the invention, Rare Earth (Rare Earth) or Rare Earth protein (SmCl3) is further added into the compound formula of the cleaning solution for the spinneret and spinning die, preferably, the content of the Rare Earth in the compound formula of the invention is 0.5-50% by weight, more preferably 2-40% by weight, and even more preferably 5-20% by weight. Preferably, the rare earth protein is contained in the compound formula of the cleaning solution for the spinneret orifice of the invention in a weight percentage of 0.1-5%, more preferably 0.5-4%, and even more preferably 0.8-3%.

According to the second embodiment of the invention, rare earth or rare earth protein is further added into the compound formula of the cleaning solution for the spinneret orifice. Preferably, the content of the rare earth or the rare earth protein in the compound formula of the cleaning solution for the spinneret orifice of the invention is 0.5-25% by weight, more preferably 1-20% by weight, and even more preferably 5-15% by weight. The compound formula of the cleaning solution for the spray spinning die preferably adopts at least one of dimethylbenzene, deuterated o-dichlorobenzene and dimethylformamide.

According to a third embodiment of the invention, rare earth or rare earth protein is added in the compound formula of the spinneret die cleaning liquid, and n-Heptane (n-Heptane) and/or Trichlorobenzene (1,2, 3-trichlorobezene) and tetrahydrofuran (PTMG and PTMEG) can be added on the basis of the rare earth or the rare earth protein. At least one of (1).

In the above-mentioned compound formula of the cleaning solution for a spinneret orifice of a fabric spraying and spinning die of the present invention, rare earth or rare earth protein can be used as a catalyst to generate ultrasonic waves and vibration energy waves with temperature control or micron wavelength, such as far infrared rays with wavelength of 3-14 microns, quantum vibration energy and nuclear magnetic resonance, thereby achieving an energy catalytic cleaning effect. In addition, the rare earth or the rare earth protein can form a polymer protective film or a nanometer protective film on the friction surface of the metal die, thereby realizing the function of automatic protection and repair; and the rapid heat conduction characteristic of the spinneret plate is utilized to reduce the temperature change during the cleaning of the interior of the micropore of the die, so that the rapid heat energy conversion is realized, and the service life of the spinneret die is prolonged.

The rare earth or the rare earth protein has special optical, electric, magnetic and catalytic properties due to the special electronic structure of the elements, can be used as a composite magnetized material, improves the catalytic efficiency and enhances the oil molecular reaction activity; the cleaning solution can be decomposed or cracked into small molecules and activated molecules again, so that the polypropylene can be fully dissolved by virtue of smaller volume and higher kinetic energy.

According to the third embodiment of the present invention, the compound formula of the die cleaning solution added with rare earth or rare earth protein and at least one of n-heptane, trichlorobenzene and tetrahydrofuran of the present invention can be used as a catalyst (generating high electromagnetic catalytic reaction) and a medium for promoting ultrasonic energy conversion, and a cracking catalyst. Photon kinetic energy such as vibration energy waves (such as far infrared rays with the wavelength of 3-14 microns, quantum vibration kinetic energy and nuclear magnetic resonance) with special chemical action excites bond energy of hydrocarbon and carbon-carbon molecular groups in cleaning liquid, so that polypropylene residues are split or cracked into small molecules and activated molecules again, and thus micropore conduction of a spinning die is realized by virtue of smaller volume and higher kinetic energy; the dissolving is more sufficient under the action of ultrasonic cleaning within the temperature range of 90-126 ℃, the ultrasonic cleaning efficiency is improved, the blockage of micropores of the spinning die is quickly cleaned, and the repeated service life of the spinning die of the melt-blown spinning cloth is prolonged.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.