Method for producing non-woven fabric through gas-stimulation reinforced fiber web

Abstract

The invention belongs to the technical field of non-woven fabric production and manufacturing, and particularly relates to a method for producing a non-woven fabric through gas-stimulation reinforcedfiber web. Gas-stimulation reinforcement is conducted on the fiber web through airflow, a non-woven fabric is produced; the fiber web is obtained through at least one of four web formation modes of carding web formation, airflow web formation, spinning web formation and melt-blowing web formation; fiber of the fiber web is natural fiber or conventional chemical fiber or differential fiber or functional fiber or high-performance fiber. Compared with a spunlaced non-woven fabric, the whole process of the method does not need water, energy conservation and environmental friendliness are better achieved, the method is updating and upgrading of the spunlaced process, production can be conducted by transforming equipment on an exiting non-woven production line, and the method is suitable for scale production; compared with a spunlaced non-woven fabric, defects of oil stains formed by gas-stimulation reinforcement, and the method has the advantages of being hygienic and environmentally friendly.

Description

technical field

[0001] The invention belongs to the technical field of production and manufacture of nonwoven fabrics, and in particular relates to a method for producing nonwoven fabrics by air puncture reinforcing fiber webs. Background technique

[0002] The traditional reinforcement process in the field of nonwovens is "acupuncture reinforcement", that is, the needles are used to penetrate the fluffy fiber web, so that the fibers are entangled and interspersed, and the fibers in the fiber web are densely packed to obtain a needle-punched nonwoven fabric. Mechanical reinforcement through metal needles may damage fibers and cause pollution during production. Usually, acupuncture-reinforced products are relatively thick and heavy, similar to felt sheets, and are generally not suitable for processing light and thin products, not suitable for processing disposable products, and not suitable for processing medical and hygienic materials. Therefore, the acupuncture reinforceme...

Examples

Embodiment 1

[0036] Cotton is used as raw material to produce non-woven fabrics by dry carding into a web and air thorn reinforcement.

[0037] The cotton is domestic Xinjiang non-"three silk" cotton, the grade is 2 flowers, the length is 28mm, and the micronaire value is A grade.

[0038] Manufacturing equipment includes bale grabbers, openers, blenders, cleaners, cards, web lappers, web preformers, air lace machines and winders.

[0039] Cotton grabbing machine, also known as bale grabbing machine, is a machine for grabbing cotton fibers from cotton bales. The cotton grabbing machine adopts a reciprocating cotton grabbing machine, and generally uses blades (or saw blades) and ribs to grab cotton fiber raw materials from the surface of cotton bales. , transported by airflow or mechanically to the subsequent machine for further processing.

[0040] The cotton opener is installed downstream of the cotton bale condenser, and is used to open and remove impurities from the cotton fiber raw ma...

Embodiment 2

[0059] Cotton is used as raw material to produce non-woven fabrics through dry air-laid and air-punched reinforcement.

[0060] Manufacturing equipment includes plucking machine, cotton opener, cotton blending machine, air-laid machine, fiber web pre-forming machine, air thorn machine, winding machine.

[0061] The air-laid machine feeds the opened and mixed fibers into the high-speed rotating cylinder or thorns, and further combs them into single fibers. , condensed on the web curtain to form a fiber web. The air pressure of the compressed air is 0.2MPa, and the distance between the air-punching needle and the wet fiber web is 0.1mm.

[0062] Other equipment is identical with embodiment 1.

Embodiment 3

[0064] Using polypropylene masterbatch as raw material, the polymer is extruded and melt-blown into a web and reinforced with air thorns to produce non-woven fabrics.

[0065] Manufacturing equipment includes chip dryers, meltblown machines, air puncture machines, and winders.

[0066] The meltblown machine extrudes the polymer melt from the spinneret hole of the die to form a thin stream of melt, and the heated stretching air is blown out at high speed from the air channels on both sides to stretch the polymer stream, and the cooling air below The fibers are further cooled rapidly, and the formed superfine fibers are evenly spread on the web curtain.

technical field

[0001] The invention belongs to the technical field of production and manufacture of nonwoven fabrics, and in particular relates to a method for producing nonwoven fabrics by air puncture reinforcing fiber webs. Background technique

[0002] The traditional reinforcement process in the field of nonwovens is "acupuncture reinforcement", that is, the needles are used to penetrate the fluffy fiber web, so that the fibers are entangled and interspersed, and the fibers in the fiber web are densely packed to obtain a needle-punched nonwoven fabric. Mechanical reinforcement through metal needles may damage fibers and cause pollution during production. Usually, acupuncture-reinforced products are relatively thick and heavy, similar to felt sheets, and are generally not suitable for processing light and thin products, not suitable for processing disposable products, and not suitable for processing medical and hygienic materials. Therefore, the acupuncture reinforceme...

Examples

Embodiment 1

[0036] Cotton is used as raw material to produce non-woven fabrics by dry carding into a web and air thorn reinforcement.

[0037] The cotton is domestic Xinjiang non-"three silk" cotton, the grade is 2 flowers, the length is 28mm, and the micronaire value is A grade.

[0038] Manufacturing equipment includes bale grabbers, openers, blenders, cleaners, cards, web lappers, web preformers, air lace machines and winders.

[0039] Cotton grabbing machine, also known as bale grabbing machine, is a machine for grabbing cotton fibers from cotton bales. The cotton grabbing machine adopts a reciprocating cotton grabbing machine, and generally uses blades (or saw blades) and ribs to grab cotton fiber raw materials from the surface of cotton bales. , transported by airflow or mechanically to the subsequent machine for further processing.

[0040] The cotton opener is installed downstream of the cotton bale condenser, and is used to open and remove impurities from the cotton fiber raw ma...

Embodiment 2

[0059] Cotton is used as raw material to produce non-woven fabrics through dry air-laid and air-punched reinforcement.

[0060] Manufacturing equipment includes plucking machine, cotton opener, cotton blending machine, air-laid machine, fiber web pre-forming machine, air thorn machine, winding machine.

[0061] The air-laid machine feeds the opened and mixed fibers into the high-speed rotating cylinder or thorns, and further combs them into single fibers. , condensed on the web curtain to form a fiber web. The air pressure of the compressed air is 0.2MPa, and the distance between the air-punching needle and the wet fiber web is 0.1mm.

[0062] Other equipment is identical with embodiment 1.

Embodiment 3

[0064] Using polypropylene masterbatch as raw material, the polymer is extruded and melt-blown into a web and reinforced with air thorns to produce non-woven fabrics.

[0065] Manufacturing equipment includes chip dryers, meltblown machines, air puncture machines, and winders.

[0066] The meltblown machine extrudes the polymer melt from the spinneret hole of the die to form a thin stream of melt, and the heated stretching air is blown out at high speed from the air channels on both sides to stretch the polymer stream, and the cooling air below The fibers are further cooled rapidly, and the formed superfine fibers are evenly spread on the web curtain.

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