CN216942216U

CN216942216U - Production device of air purification non-woven fabric

Info

Publication number: CN216942216U
Application number: CN202123305521.2U
Authority: CN
Inventors: 赵程波
Original assignee: HANGZHOU NBOND NONWOVENS CO LTD
Current assignee: HANGZHOU NBOND NONWOVENS CO LTD
Priority date: 2021-12-24
Filing date: 2021-12-24
Publication date: 2022-07-12
Anticipated expiration: 2031-12-24

Abstract

The utility model relates to the technical field of non-woven fabrics, and discloses a production device of an air purification non-woven fabric, which comprises a powder particle applying unit, a superposition reinforcing unit and a drying unit; the powder particle applying unit comprises a electret area, an adsorption area and a reinforcing area; the adsorption area comprises a powder particle storage container, a feed hopper, a powder homogenizing roller, a powder stripping roller, a vibrating screen and a material returning hopper; a powder homogenizing roller and a powder stripping roller are sequentially arranged below the feed hopper, a vibrating screen is arranged below the powder stripping roller, and the vibrating screen is positioned right above the low-melting-point fiber net; the material returning hopper is positioned right below the low-melting-point fiber web; the powder storage container and the return hopper each feed the feed hopper via a line and a suction pump. The air purification non-woven fabric prepared by the production device has a three-layer structure, the first fiber layer has excellent water absorption, and the second fiber layer is fixedly provided with negative ion powder particles; the third fibrous layer has hydrophobic properties. The non-woven fabric has high negative ion powder particle content, stable combination and obviously enhanced adsorption and purification functions.

Description

Production device of air purification non-woven fabric

Technical Field

The utility model relates to the technical field of non-woven fabrics, in particular to a production device of an air purification non-woven fabric.

Background

With the increasing improvement of the living standard of people, people pay more and more urgent attention to life, health and safety. In recent years, the number of patients with various cancers is continuously increased, people also put new requirements on the safety of various soft decorative materials, and the soft decorative materials not only have various special functions, but also have the characteristics of health and environmental protection.

Currently, a large amount of polymer materials are included in some interior materials for indoor use and vehicle use. In daily life, small-molecule toxic gases (such as benzene, formaldehyde, acetone and the like) in the interior decoration materials are gradually released, and the interior decoration materials are unconsciously harmful to physical and psychological health of people. In the closed environments such as indoor and transportation vehicles, the peculiar smell generated by accumulation of cigarettes, dirty fermentation and the like seriously influences the body health. Therefore, the development of healthy and safe interior decoration materials has been a hot spot of industrial technical research.

The interior materials currently used in the interior and transportation are mainly organic woven fabrics, nonwoven fabrics, composite materials, artificial leathers, and the like. The technical methods for eliminating indoor harmful gas and peculiar smell mainly comprise the following steps:

1. the interior decoration material is provided with an adsorption layer, and generally, the interior decoration material adopts adsorption materials such as active carbon, montmorillonite and the like to adsorb indoor peculiar smell and purify the air environment. However, the material of the adsorption layer is easy to desorb under the condition of high temperature, the adsorption effect is gradually reduced along with the time, and the adsorption material is saturated;

2. active component substances generating negative ions are directly connected with the surface of the decorative fabric in the modes of padding, coating and the like, and the negative ions in the air adsorb peculiar smell and harmful gases. But the bonding force between the active substance and the fabric is low, and the active substance is easy to fall off under long-time friction;

3. directly adding active particles generating negative ions into a fiber solution, spinning into negative ion fibers, and then preparing the negative ion fibers into the decorative fabric. In the mode, the active particles can influence the spinnability of the fiber, the incompatibility of inorganic mineral components and polymer macromolecules exists, the active particles are easy to agglomerate, the adding amount in the spinning is limited, and the physical performance of the fiber can be reduced.

Aiming at the problems in the prior art, a novel air purification non-woven fabric with high content of adsorptive materials, stable combination and remarkable adsorption and purification functions needs to be developed. And for this novel air purification non-woven fabrics, then need to develop special apparatus for producing simultaneously.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a production device of air purification non-woven fabric. The air purification non-woven fabric prepared by the production device has a three-layer structure, the first fiber layer has excellent water absorption, and the second fiber layer is fixedly provided with negative ion powder particles; the third fibrous layer has hydrophobic properties. The non-woven fabric has high content of negative ion powder particles, stable combination and obviously enhanced adsorption and purification functions.

The specific technical scheme of the utility model is as follows: a production device of air purification non-woven fabric comprises a powder particle applying unit, a superposition reinforcing unit and a drying unit which are sequentially connected according to the advancing direction of a low-melting-point fiber web.

The powder particle applying unit comprises an electret area, an adsorption area and a reinforcing area which are mutually isolated and sequentially connected according to the advancing direction of the low-melting-point fiber web; between the zones are several transport rolls for the transport of the low-melting-point web. Wherein:

the adsorption area comprises a powder particle storage container, a feed hopper, a powder homogenizing roller, a powder stripping roller, a vibrating screen and a material returning hopper; a powder homogenizing roller and a powder stripping roller which are matched with each other are sequentially arranged below the feed hopper, a vibrating screen is arranged below the powder stripping roller, and the vibrating screen is positioned right above the low-melting-point fiber net; the return hopper is positioned right below the low-melting-point fiber web; the powder storage container and the return hopper respectively supply materials to the feed hopper through pipelines and a suction pump.

A high-voltage electrostatic generator and an electret needle plate which are matched with each other are arranged in the electret area; the electret fallers are respectively arranged on the upper side and the lower side of the low-melting-point fiber web and face the low-melting-point fiber web.

And a plurality of far infrared heating pipes distributed on the upper side and the lower side of the low-melting-point fiber net are arranged in the reinforcing area.

The production device of the utility model has the working process that: the low-melting-point fiber web is conveyed into an electret area of the powder particle applying unit through a conveying roller and passes through the middle of an upper electret needle plate and a lower electret needle plate; the high-voltage electrostatic generator generates a high-voltage electric field, the tail end of the electret needle plate generates corona discharge, and corona ionic charges are deposited on the fiber web to enable the fiber web with low melting point to obtain charges; the low-melting-point fiber net with the charges is sent into an adsorption zone, and negative ion powder particles are transferred to a vibrating screen from a feed hopper through a powder homogenizing roller and a powder stripping roller; through the shaking of the vibrating screen, the negative ion powder particles are uniformly distributed on the low-melting-point fiber net and are adsorbed by the charged fibers; the non-adsorbed powder particles fall into a return hopper and are returned to the feed hopper again; sending the low-melting-point fiber net adsorbing the powder particles into a reinforcing area and allowing the low-melting-point fiber net to pass through the middle of a far infrared heating pipe; the low-melting point component in the low-melting point fiber is melted at high temperature, and the negative ion powder particles and the fiber are bonded into a whole to prepare a second fiber layer. Sequentially overlapping the second fiber layer and the first fiber layer on the third fiber layer through an overlapping and reinforcing unit and carrying out spunlace reinforcement to enable the three-layer overlapping material to be consolidated into a whole; removing excessive water from the spunlaced material, and drying in a drying unit to obtain the finished product.

The air purification non-woven fabric prepared by the device comprises a first fiber layer, a second fiber layer and a third fiber layer which are sequentially connected in an overlapped mode; the first fiber layer contains super absorbent fibers; the second fiber layer comprises low-melting-point fibers and negative ion powder particles attached to the low-melting-point fibers; the third fibrous layer is comprised of hydrophobic fibers. It is characterized in that: (1) super absorbent fibers are added in the first fiber layer which is in direct contact with the external environment, so that the water content in the surrounding environment can be absorbed, the water content of the air purification non-woven fabric is kept in a specific range, the first fiber layer is equivalent to a weak water storage, the ionization reaction of negative ion powder particles in the second fiber layer can be continuously enhanced, the generation amount of negative ions is greatly enhanced, and the air purification effect is enhanced. (2) The second fiber layer is positioned in the middle layer, wherein the negative ion powder particles are fixed on the low-melting-point fiber which is solidified again after being melted, and the firmness of the powder particles is improved. Compare traditional flooding arrangement technology, this scheme can not produce the problem that the anion powder grain breaks away from, can not produce dust pollution, and simultaneously, the anion powder grain is located in the middle of the material, not with human direct contact, the security is high. (3) The third fiber layer is used for adhering the interior decoration material (air purification non-woven fabric) to the wall surface or the automobile roof surface, and the hydrophobic fiber is adopted, so that the adhesive fastness is high, and the moisture-proof and mildew-proof effects are achieved. The third fiber layer adopts hot-melt synthetic fibers, and can also play a role in thermal bonding, so that the forming processing is facilitated.

Preferably, a feed hopper heater is arranged on the feed hopper.

Preferably, the superposition and reinforcement unit comprises a composite guide roller, a flat screen spunlace device and a circular drum spunlace device which are sequentially connected;

the flat-net hydro-entangled device comprises an endless circularly rotating net supporting curtain and a plurality of guide rollers for conveying the net supporting curtain; the composite guide roller is arranged in front of the flat screen spunlace device and above the screen supporting curtain; and an unwinding frame is arranged in front of the flat screen spunlace device and below the screen supporting curtain.

Preferably, a plurality of water stabs facing the low-melting-point fiber net are arranged above the net supporting curtain; a suction device is arranged below the net supporting curtain and opposite to the water stabs; the circular drum spunlace device comprises a circular drum and a plurality of spunlace heads which are arranged on the outer side of the circular drum and face the surface of the circular drum.

Preferably, the drying unit comprises a hot air through-air oven.

Compared with the prior art, the utility model has the beneficial effects that:

(1) the production device is provided with the powder particle applying unit, so that the negative ion powder particles can be fixed in the low-melting-point fiber net, and the problems of low addition amount, easy falling and the like of the negative ion powder particles of the product in the prior art are solved;

(2) in the non-woven fabric obtained by the production device, the super absorbent fibers are arranged in the first fiber layer connected with the negative ion powder particles, so that the water in the surrounding environment is fully absorbed, the first fiber layer is in a high humidity range, the generation amount of negative ions is effectively increased, the air purification effect is improved, and the problems of low negative ion release amount, unstable air purification effect and the like of products in the prior art are solved;

(3) the air purification non-woven fabric production device is reasonable in design, simple in structure, convenient to operate, high in production efficiency and suitable for practical popularization.

Drawings

FIG. 1 is a schematic view showing a connection of an apparatus for producing an air-purifying nonwoven fabric according to example 1 of the present invention;

FIG. 2 is a schematic side view showing a partial structure of a powder particle applying unit according to embodiment 1 of the present invention;

FIG. 3 is a schematic front view of a hopper of an adsorption zone of a powder particle application unit in accordance with example 1 of the present invention;

fig. 4 is a schematic structural diagram of an air-purifying nonwoven fabric in embodiment 1 of the present invention.

The reference signs are: the device comprises a first fiber layer 1, a second fiber layer 2, a third fiber layer 3, a low-melting-point fiber net 4, a powder applying unit 5, a superposition reinforcing unit 6, a drying unit 7 and an air purification non-woven fabric 8; an electret region 501, an adsorption region 502, a reinforcement region 503, a transmission roller 504, a high-voltage electrostatic generator 5011, an electret faller 5012, a feed hopper 5021, a feed hopper heater 5022, a flour homogenizing roller 5023, a flour peeling roller 5024, a vibrating screen 5025, a pipeline 5026, a powder storage container 5027, a return hopper 5028, a suction pump 5029 and a far infrared heating pipe 5031; a composite guide roller 601, a unreeling frame 602, a flat screen spunlace head 603, a suction device 604, a supporting screen curtain 605, a round drum 606, a guide roller 607 and a round drum spunlace head 608; a hot air penetration oven 701 and a lap former 702.

Detailed Description

The present invention will be further described with reference to the following examples.

Example 1

An air purification non-woven fabric production device is shown in figure 1 and comprises a powder particle applying unit 5, a superposition reinforcing unit 6 and a drying unit 7 which are connected in sequence according to the advancing direction of a low-melting-point fiber web 4. Wherein:

as shown in fig. 1, the powder particle applying unit comprises an electret area 501, an adsorption area 502 and a reinforcement area 503 which are isolated from each other and sequentially connected in the low-melting-point fiber web advancing direction; the zones are located in a closed box, between which are located transfer rolls 504 for the transport of the low-melting-point web.

As shown in fig. 2-3, the adsorption zone comprises a powder storage container 5027, a feed hopper 5021, a flour homogenizing roller 5023, a flour stripping roller 5024, a vibrating screen 5025 and a return hopper 5028; a feed hopper heater 5022 is arranged on the feed hopper, a powder homogenizing roller and a powder stripping roller which are matched with each other are sequentially arranged below the feed hopper, a vibrating screen is arranged below the powder stripping roller, and the vibrating screen is positioned right above the low-melting-point fiber net; the return hopper is positioned right below the low-melting-point fiber web; the particle storage vessel and the return hopper each feed the feed hopper via line 5026 and suction pump 5029. A high-voltage electrostatic generator 5011 and an electret needle plate 5012 which are matched with each other are arranged in the electret area; the electret fallers are respectively arranged on the upper side and the lower side of the low-melting-point fiber web and face the low-melting-point fiber web. As shown in fig. 1, far infrared heating pipes 5031 distributed on the upper and lower sides (7 upper and lower sides) of the low melting point fiber web are arranged in the reinforcing region.

As shown in fig. 1, the laminating and reinforcing unit includes a compound guide roller 601, a flat-screen hydro-entangling device and a circular drum hydro-entangling device which are connected in sequence. The flat-web hydroentangling device comprises an endless, revolving carrier web 605 and a guide roller 607 for conveying the carrier web; the composite guide roller is arranged in front of the flat screen spunlace device and above the screen supporting curtain; an unreeling frame 602 is arranged in front of the flat screen spunlace device and below the screen supporting curtain. 3 flat net water stabs 603 facing to the low-melting-point fiber net are arranged above the net supporting curtain; a suction device 604 is arranged below the net supporting curtain and opposite to the flat net water stabs; the drum hydro-entangling device comprises a drum 606 and 2 drum hydro-entangling heads 608 arranged outside the drum and facing the surface of the drum.

The drying unit includes a hot air through-type oven 701 and a lap former 702.

An air purification non-woven fabric, as shown in fig. 4, comprises a first fiber layer 1, a second fiber layer 2 and a third fiber layer 3 which are sequentially overlapped and connected; superabsorbent fibers and synthetic antimicrobial fibers in the first fibrous layer; the second fiber layer comprises low-melting-point fibers (polypropylene/polyester sheath-core bicomponent fiber filaments) and negative ion powder particles attached to the low-melting-point fibers; the third fiber layer is polypropylene spun-bonded hot-rolled non-woven fabric.

The raw materials and equipment used in the utility model are common raw materials and equipment in the field if not specified; the methods used in the present invention are conventional in the art unless otherwise specified.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and all simple modifications, alterations and equivalents of the above embodiments according to the technical spirit of the present invention are still within the protection scope of the technical solution of the present invention.

Claims

1. The utility model provides an apparatus for producing of air purification non-woven fabrics which characterized in that: according to the advancing direction of the low-melting-point fiber web, the device comprises a powder particle applying unit (5), a superposed reinforcing unit (6) and a drying unit (7) which are connected in sequence;

the powder particle applying unit comprises an electret area (501), an adsorption area (502) and a reinforcing area (503), which are isolated from each other and sequentially connected with each other according to the advancing direction of the low-melting-point fiber web; a plurality of conveying rollers (504) for conveying the low-melting-point fiber web are arranged among the zones;

the adsorption region comprises a powder storage container (5027), a feed hopper (5021), a flour homogenizing roller (5023), a flour peeling roller (5024), a vibrating screen (5025) and a return hopper (5028); a powder homogenizing roller and a powder stripping roller which are matched with each other are sequentially arranged below the feed hopper, a vibrating screen is arranged below the powder stripping roller, and the vibrating screen is positioned right above the low-melting-point fiber net; the return hopper is positioned right below the low-melting-point fiber web; the powder storage container and the return hopper are each fed to the feed hopper via a line (5026) and a suction pump (5029).

2. The production device of claim 1, wherein: and a feed hopper heater (5022) is arranged on the feed hopper.

3. The production apparatus according to claim 1 or 2, wherein: a high-voltage electrostatic generator (5011) and an electret needle plate (5012) which are matched with each other are arranged in the electret area; the electret fallers are respectively arranged on the upper side and the lower side of the low-melting-point fiber web and face the low-melting-point fiber web.

4. The production apparatus according to claim 1 or 2, wherein: the reinforcing area is internally provided with a plurality of far infrared heating pipes (5031) distributed at the upper side and the lower side of the low-melting-point fiber net.

5. The production device of claim 1, wherein: the superposition reinforcing unit comprises a composite guide roller (601), a flat screen spunlace device and a circular drum spunlace device which are sequentially connected.

6. The production apparatus according to claim 5, wherein: the flat-wire hydroentangling device comprises an endless, circularly rotating carrier web (605) and a plurality of guide rollers (607) for conveying the carrier web; the composite guide roller is arranged in front of the flat screen spunlace device and above the screen supporting curtain; a plurality of flat net water stabs (603) facing the low-melting-point fiber net are arranged above the net supporting curtain; and a suction device (604) is arranged below the net supporting curtain and opposite to the flat net water stabs.

7. The production apparatus according to claim 6, wherein: an unreeling frame (602) is arranged in front of the flat screen spunlace device and below the screen supporting curtain.

8. The production apparatus according to claim 5, wherein: the drum spunlace device comprises a drum (606) and a plurality of drum spunlace heads (608) which are arranged on the outer side of the drum and face the surface of the drum.

9. The production device of claim 1, wherein: the drying unit is a hot air penetrating type drying oven.