Unlock instant, AI-driven research and patent intelligence for your innovation.

A short process melt-blown non-woven fabric processing technology and device and non-woven fabric

A melt-blown non-woven fabric and processing technology technology, applied in textiles and papermaking, non-woven fabrics, single-component polyolefin rayon, etc., can solve the problems of equipment cost waste, high energy consumption, low production efficiency, etc., Achieve the effect of improving dispersibility, low energy consumption and low cost

Active Publication Date: 2022-02-01
DEZHOU BRANCH OF BEIJING NAT INNOVATION INST OF LIGHTWEIGHT CO LTD +1
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the production of melt-blown non-woven fabrics is divided into two processes. The process is long, the production efficiency is low, the output is low, and the energy consumption is high. Increase in equipment cost
[0004] Therefore, it is necessary to provide a new type of melt-blown polypropylene raw material and melt-blown non-woven fabric in one process method to solve the problems of long process flow, low production efficiency, low output and high energy consumption in the existing melt-blown non-woven fabric production. And the waste of equipment cost helps to improve the production efficiency of melt blown non-woven fabrics and reduce production costs
[0005] In addition, the current production process of melt-blown polypropylene raw material particles is generally produced by the degradation method. In the production process, a degradation agent is generally required to add toxic, heterocyclic and other small molecular substances in the production process, which is harmful to the human body. , affecting health; and the quality of products produced by the current degradation method is unstable, resulting in easy breakage in the process of producing non-woven fabrics, and the performance of non-woven fabrics is unstable, affecting its application

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A short process melt-blown non-woven fabric processing technology and device and non-woven fabric
  • A short process melt-blown non-woven fabric processing technology and device and non-woven fabric
  • A short process melt-blown non-woven fabric processing technology and device and non-woven fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] This embodiment provides a short process melt-blown non-woven fabric processing technology, comprising the following steps:

[0062] Step 1: Uniformly mix peroxide, silicone masterbatch and antioxidant 1010 to obtain additives;

[0063] Step 2: Add the polypropylene resin to the twin-screw extruder through the first feeding device, and at the same time, feed the additives into the twin-screw extruder through the second feeding device. After the components are fully reacted inside the twin-screw extruder A melt was obtained; wherein, the temperature at the front section of the screw was 180°C, the temperature at the middle section of the screw was 220°C, and the temperature at the rear section of the screw was 210°C.

[0064] Step 3: Filter the melt through a filter, and the melt after removing impurities enters the resin metering pump body to achieve quantitative (quantitative resin is realized through the resin metering pump body, which has a metering effect. Due to th...

Embodiment 2

[0071] This embodiment provides a short-process melt-blown non-woven fabric processing process, the steps are the same as in Embodiment 1, and will not be repeated here, the difference is:

[0072] Wherein, raw material component and mass percent are:

[0073]

[0074]

[0075] The melt index of the polypropylene resin is 20.

[0076] Among them, the temperature of the front section of the screw is 200°C, the temperature of the middle section of the screw is 230°C, and the temperature of the rear section of the screw is 220°C.

[0077] The breaking strength of the non-woven fabric obtained in this embodiment is 36.3N, the elongation at break is 49.5%, and the bursting strength is 41.6N; no peculiar smell; the breaking rate of the short flow melt-blown non-woven fabric of this embodiment is less than 0.6%.

Embodiment 3

[0079] This embodiment provides a short-process melt-blown non-woven fabric processing process, the steps are the same as in Embodiment 1, and will not be repeated here, the difference is:

[0080] Wherein, raw material component and mass percent are:

[0081]

[0082] The melt index of the polypropylene resin is 35.

[0083] Among them, the temperature of the front section of the screw is 210°C, the temperature of the middle section of the screw is 230°C, and the temperature of the rear section of the screw is 210°C.

[0084] The breaking strength of the non-woven fabric obtained in this embodiment is 36.8N, the elongation at break is 51.7%, and the bursting strength is 42.7N; no peculiar smell; the breaking rate of the short flow melt-blown non-woven fabric of this embodiment is less than 0.5%.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
elongation at breakaaaaaaaaaa
Tensile strengthaaaaaaaaaa
elongation at breakaaaaaaaaaa
Login to View More

Abstract

The invention discloses a short-flow melt-blown non-woven fabric processing technology and device and non-woven fabric, which belong to the technical field of non-woven fabrics and solve the problem of complex melt-blown non-woven fabric processing devices and non-woven fabric preparation process in the prior art. Long, the problem of toxic substances is easy to be produced during the non-woven fabric preparation process. The raw materials of non-woven fabrics include: polypropylene resin: 94.5% ~ 98.8%, peroxide: 0.3% ~ 3.5%, silicone masterbatch: 0.5% ~ 1.2%, nucleating agent: 0.1% ~ 0.3% %, antioxidant 1010: 0.3% to 0.5%. The short-process melt-blown non-woven fabric processing device includes a twin-screw extruder, a filter, a resin metering pump body, a spinneret assembly, an air feeder, a mesh belt receiver, and a trimming winder. The short-process melt-blown non-woven fabric processing device has low cost, and the non-woven fabric produced by the device has a short process flow, high efficiency, low energy consumption, and less generation of harmful substances.

Description

technical field [0001] The invention relates to the technical field of non-woven fabrics, in particular to a short-process melt-blown non-woven fabric processing technology and device and non-woven fabrics. Background technique [0002] Melt-blown non-woven fabric has the characteristics of high-efficiency filterability, shielding and breathability. It is the main raw material for the production of masks and protective clothing, and is widely used in fields such as medical and health care, daily protection and filter materials. With the intensification of the new crown pneumonia epidemic, the demand and consumption of melt-blown non-woven fabrics at home and abroad continue to increase, which is also the main reason for the current shortage of raw materials for melt-blown non-woven fabrics (that is, high-fluidity polypropylene resin) and the rapid increase in prices. reason. [0003] At present, high-fluidity polypropylene resin is relatively difficult to obtain directly in...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): D04H1/544D04H1/56D01F6/46D01F1/10
CPCD04H1/544D04H1/56D01F6/46D01F1/10
Inventor 范广宏朱祥东程宝发任明伟杨涛何琪周玉敬王玮
Owner DEZHOU BRANCH OF BEIJING NAT INNOVATION INST OF LIGHTWEIGHT CO LTD