阅读说明：本技术 一种环保型pp熔喷布生产工艺 (Environment-friendly PP melt-blown fabric production process ) 是由 王旭 黄春节 于 2020-12-07 设计创作，主要内容包括：本发明属于熔喷布生产制造领域,尤其是一种环保型PP熔喷布生产工艺,针对现有的PP熔喷布制备过程繁琐复杂,制备效率低,并且使得熔喷布不能够同时具有杀菌灭毒功能的问题,现提出如下方案,其包括以下步骤：S1：原料干燥：将PP熔喷布原料放入干燥机中进行干燥处理；S2：计量混合：将干燥后的原料进行计量,计量完成后将原料放入混合机中进行混合处理；S3：加热熔融：将混合后的原料加入到螺杆挤出机中进行加热熔融；S4：熔体过滤：对加热熔融后的熔体进行过滤处理；S5：喷出成型。本发明PP熔喷布制备过程简单便捷,制备效率高,并且使得熔喷布同时具有杀菌灭毒功能。(The invention belongs to the field of melt-blown fabric production and manufacturing, in particular to an environment-friendly PP melt-blown fabric production process, which aims at solving the problems that the existing PP melt-blown fabric preparation process is complicated and low in preparation efficiency, and the melt-blown fabric cannot have the sterilization and disinfection functions at the same time, and the following scheme is proposed, and comprises the following steps: s1: drying raw materials: putting the PP melt-blown fabric raw material into a dryer for drying treatment; s2: metering and mixing: metering the dried raw materials, and putting the raw materials into a mixer for mixing treatment after metering is finished; s3: heating and melting: adding the mixed raw materials into a screw extruder for heating and melting; s4: melt filtration: filtering the melt after heating and melting; s5: and (4) spraying and forming. The PP melt-blown fabric is simple and convenient in preparation process and high in preparation efficiency, and has the functions of sterilization and disinfection.)

1. The production process of the environment-friendly PP melt-blown fabric is characterized by comprising the following steps:

s1: drying raw materials: putting the PP melt-blown fabric raw material into a dryer for drying treatment;

s2: metering and mixing: metering the dried raw materials, and putting the raw materials into a mixer for mixing treatment after metering is finished;

s3: heating and melting: adding the mixed raw materials into a screw extruder for heating and melting;

s4: melt filtration: filtering the melt after heating and melting;

s5: and (3) ejection forming: ejecting the melt from a melting nozzle on a screw extruder, forming fibers through drafting, and then cooling to form melt-blown cloth;

s6: preparing materials: preparing ethylene oxide and water-based adhesive, and fully mixing the ethylene oxide and the water-based adhesive to prepare a spray liquid;

s7: rolling and spraying: winding the melt-blown fabric in the step S5, and spraying the melt-blown fabric with the spray liquid in the step S6 in the winding process;

s8: and (4) sealing and packaging: and sealing and packaging the melt-blown fabric sprayed in the step S7.

2. The process of claim 1, wherein in S1, the temperature in the dryer is set to 60-80 ℃ and the drying time is set to 30-40 min.

3. The process as claimed in claim 1, wherein in S2, the rotation speed of the mixer is set at 140-160r/min, and the mixing time of the mixer is set at 12-16 min.

4. The process as claimed in claim 1, wherein the temperature of the melting nozzle in S5 is set at 190 ℃ and 170 ℃.

5. The process of claim 1, wherein in step S5, the drawn fibers are cooled by injecting cool air, and the temperature of the cool air is set to 8-16 ℃.

6. The process of claim 1, wherein in the step S5, the diameter of the drawn forming fiber is 2-8 um.

7. The process of claim 1, wherein in step S6, the aqueous glue is added into an ethylene oxide tank and shaken vigorously to mix the ethylene oxide with the aqueous glue.

8. The process of claim 1, wherein in step S7, the melt-blown fabric is uniformly sprayed on the front and back surfaces of the melt-blown fabric by spraying liquid during the winding process of the melt-blown fabric.

Technical Field

The invention relates to the technical field of melt-blown fabric production and manufacturing, in particular to an environment-friendly PP melt-blown fabric production process.

Background

The melt-blown fabric is the most core material of the mask, the melt-blown fabric mainly takes polypropylene as a main raw material, and the fiber diameter can reach 1-5 microns. The superfine fiber with the unique capillary structure increases the number and the surface area of the fiber per unit area, so that the melt-blown fabric has good filtering property, shielding property, heat insulation property and oil absorption property. Can be used in the fields of air and liquid filtering materials, isolating materials, absorbing materials, mask materials, warm-keeping materials, oil absorbing materials, wiping cloth and the like.

At present, the preparation process of PP melt-blown fabric is complicated and complex, the preparation efficiency is low, and the melt-blown fabric cannot have the functions of sterilization and disinfection at the same time.

Disclosure of Invention

The invention aims to solve the defects that in the prior art, the preparation process of PP melt-blown fabric is complicated, the preparation efficiency is low, and the melt-blown fabric cannot have the sterilization and disinfection functions at the same time, and provides an environment-friendly PP melt-blown fabric production process.

In order to achieve the purpose, the invention adopts the following technical scheme:

an environment-friendly PP melt-blown fabric production process comprises the following steps:

s1: drying raw materials: putting the PP melt-blown fabric raw material into a dryer for drying treatment;

s2: metering and mixing: metering the dried raw materials, and putting the raw materials into a mixer for mixing treatment after metering is finished;

s3: heating and melting: adding the mixed raw materials into a screw extruder for heating and melting;

s4: melt filtration: filtering the melt after heating and melting;

s5: and (3) ejection forming: ejecting the melt from a melting nozzle on a screw extruder, forming fibers through drafting, and then cooling to form melt-blown cloth;

s6: preparing materials: preparing ethylene oxide and water-based adhesive, and fully mixing the ethylene oxide and the water-based adhesive to prepare a spray liquid;

s7: rolling and spraying: winding the melt-blown fabric in the step S5, and spraying the melt-blown fabric with the spray liquid in the step S6 in the winding process;

s8: and (4) sealing and packaging: and sealing and packaging the melt-blown fabric sprayed in the step S7.

Preferably, in S1, the temperature in the dryer is set to 60-80 ℃, and the drying time is set to 30-40 min.

Preferably, in S2, the rotation speed of the mixer is set to 140-160r/min, and the mixing time of the mixer is set to 12-16 min.

Preferably, in the S5, the temperature of the melting nozzle is set to 170 ℃.

Preferably, in S5, the fiber formed by drawing is cooled by injecting cool air, and the temperature of the cool air is set to 8-16 ℃.

Preferably, in S5, the diameter of the drawn fiber is 2-8 um.

Preferably, in S6, the aqueous gel is added to an ethylene oxide storage tank, and the mixture is shaken vigorously to mix the ethylene oxide with the aqueous gel.

Preferably, in S7, in the process of winding the meltblown fabric, the front and back sides of the meltblown fabric are uniformly sprayed by the liquid spray.

According to the production process of the environment-friendly PP melt-blown fabric, the preparation process of the PP melt-blown fabric is simple and convenient, the preparation efficiency is high, meanwhile, the ethylene oxide spray coating can sterilize and disinfect the surface of the melt-blown fabric, bacteria attached to the melt-blown fabric can be killed, the ethylene oxide can be well adhered to the melt-blown fabric through the arranged water-based adhesive, then the melt-blown fabric is hermetically packaged, and when the melt-blown fabric is unpacked, the melt-blown fabric can be guaranteed to be sterilized and disinfected, so that the PP melt-blown fabric is convenient for people to use.

The PP melt-blown fabric is simple and convenient in preparation process and high in preparation efficiency, and has the functions of sterilization and disinfection.

Detailed Description

The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments.

Example one

An environment-friendly PP melt-blown fabric production process comprises the following steps:

s1: drying raw materials: putting the PP melt-blown fabric raw material into a dryer for drying treatment;

s2: metering and mixing: metering the dried raw materials, and putting the raw materials into a mixer for mixing treatment after metering is finished;

s3: heating and melting: adding the mixed raw materials into a screw extruder for heating and melting;

s4: melt filtration: filtering the melt after heating and melting;

s5: and (3) ejection forming: ejecting the melt from a melting nozzle on a screw extruder, forming fibers through drafting, and then cooling to form melt-blown cloth;

s6: preparing materials: preparing ethylene oxide and water-based adhesive, and fully mixing the ethylene oxide and the water-based adhesive to prepare a spray liquid;

s7: rolling and spraying: winding the melt-blown fabric in the step S5, and spraying the melt-blown fabric with the spray liquid in the step S6 in the winding process;

s8: and (4) sealing and packaging: and sealing and packaging the melt-blown fabric sprayed in the step S7.

In this embodiment, in S1, the temperature in the dryer is set to 60 ℃, the drying time is set to 30min, in S2, the rotation speed of the mixer is set to 140r/min, the mixing time of the mixer is set to 12min, in S5, the temperature of the melt nozzle is set to 170 ℃, in S5, the fiber formed by drawing is cooled by injecting cold air, the temperature of the cold air is set to 8 ℃, in S5, the diameter of the fiber formed by drawing is 2um, in S6, the aqueous adhesive is added into the ethylene oxide storage tank, and is shaken vigorously to mix the ethylene oxide and the aqueous adhesive, and in S7, in the winding process of the melt-blown fabric, the front and back sides of the melt-blown fabric are uniformly sprayed by the spray liquid at the same time.

Example two

An environment-friendly PP melt-blown fabric production process comprises the following steps:

s1: drying raw materials: putting the PP melt-blown fabric raw material into a dryer for drying treatment;

s2: metering and mixing: metering the dried raw materials, and putting the raw materials into a mixer for mixing treatment after metering is finished;

s3: heating and melting: adding the mixed raw materials into a screw extruder for heating and melting;

s4: melt filtration: filtering the melt after heating and melting;

s5: and (3) ejection forming: ejecting the melt from a melting nozzle on a screw extruder, forming fibers through drafting, and then cooling to form melt-blown cloth;

s6: preparing materials: preparing ethylene oxide and water-based adhesive, and fully mixing the ethylene oxide and the water-based adhesive to prepare a spray liquid;

s7: rolling and spraying: winding the melt-blown fabric in the step S5, and spraying the melt-blown fabric with the spray liquid in the step S6 in the winding process;

s8: and (4) sealing and packaging: and sealing and packaging the melt-blown fabric sprayed in the step S7.

In this embodiment, in S1, the temperature in the dryer is set to 80 ℃, the drying time is set to 40min, in S2, the rotation speed of the mixer is set to 160r/min, the mixing time of the mixer is set to 16min, in S5, the temperature of the melt nozzle is set to 190 ℃, in S5, the fiber formed by drawing is cooled by injecting cold air, the temperature of the cold air is set to 16 ℃, in S5, the diameter of the fiber formed by drawing is 8um, in S6, the water-based adhesive is added into the ethylene oxide storage tank, and is shaken vigorously, so that the ethylene oxide and the water-based adhesive are mixed, and in S7, in the winding process of the melt-blown fabric, the front side and the back side of the melt-blown fabric are uniformly sprayed by the liquid spray at the same time.

Study of the Disinfection and Sterilization Properties of meltblown fabrics:

a common melt-blown fabric is taken out, then the melt-blown fabrics produced and packaged in the first embodiment and the second embodiment are taken out, one each, the three melt-blown fabrics are respectively placed under three microscopes for detection, bacteria on the three melt-blown fabrics are recorded, a large number of different virus bacteria can be distributed on the common melt-blown fabric, and the melt-blown fabric produced and packaged in the first embodiment and the second embodiment has no virus bacteria, so that the use of people is facilitated.

While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.