CN112495059B - Multifunctional activated carbon fiber cotton and production process thereof - Google Patents

Multifunctional activated carbon fiber cotton and production process thereof Download PDF

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CN112495059B
CN112495059B CN202011365355.2A CN202011365355A CN112495059B CN 112495059 B CN112495059 B CN 112495059B CN 202011365355 A CN202011365355 A CN 202011365355A CN 112495059 B CN112495059 B CN 112495059B
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fiber
layer
cotton
activated carbon
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CN112495059A (en
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龙土坚
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Dongguan Guanli Non Woven Technology Co ltd
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Dongguan Guanli Non Woven Technology Co ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0001—Making filtering elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
    • B01D46/0036—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions by adsorption or absorption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/02—Types of fibres, filaments or particles, self-supporting or supported materials
    • B01D2239/0216—Bicomponent or multicomponent fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
    • B01D2239/0604—Arrangement of the fibres in the filtering material
    • B01D2239/0636—Two or more types of fibres present in the filter material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
    • B01D2239/065—More than one layer present in the filtering material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
    • Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust

Abstract

The invention provides multifunctional activated carbon fiber cotton and a production process thereof, and relates to the technical field of activated carbon fiber cotton, wherein the multifunctional activated carbon fiber cotton comprises a first coarse fiber layer, a second activated carbon layer, a third hot-melt fiber layer and a fourth fine fiber layer, the first coarse fiber layer is prepared from flame-retardant polyester fibers 8D, hollow three-dimensional polyester fibers 15D and low-melting-point fibers 4D, the second activated carbon layer is prepared from activated carbon, the third hot-melt fiber layer is prepared from hot-melt fibers, and the fourth fine fiber layer is prepared from negative ion fiber cotton 2.5D, flame-retardant polyester fibers 3D, ES fibers 1.5D and low-melting-point fibers 4D. According to the invention, the first coarse fiber layer, the second activated carbon layer, the third hot-melt fiber layer and the fourth fine fiber layer are arranged, so that the gradient-shaped filtering effect is formed from coarse fibers to fine fibers in the product structure, and a better filtering effect can be obtained when air and water are filtered.

Description

Multifunctional activated carbon fiber cotton and production process thereof
Technical Field
The invention relates to the technical field of activated carbon fiber cotton, in particular to multifunctional activated carbon fiber cotton and a production process thereof.
Background
Along with the improvement of human living standard and the development of industrialization, the usage amount of automobiles is increased, a great amount of industrial enterprises are rising, great pollution is brought to the living environment of people, the pollution is mainly caused by the emission of automobile exhaust and the emission of waste gas and waste water of the industrial enterprises, and the harm is brought to human health, so that the attention on air purification is increasingly paid to, and the activated carbon fiber cotton has good filtering and adsorbing capacity, can filter dust particles and peculiar smell in the air, and is commonly used in the fields of various household and vehicle air conditioners, air purifiers, water purification, gas phase adsorption and the like.
Most of the existing activated carbon fiber cotton is formed by adding activated carbon into cotton, and then the cotton is bonded with the activated carbon by using glue, and the glue contains a large amount of formaldehyde, and simultaneously the activated carbon can absorb the formaldehyde, so that the activated carbon absorbs a certain amount of formaldehyde after the existing activated carbon fiber cotton is manufactured, and the adsorption capacity of the activated carbon fiber cotton is influenced.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides multifunctional activated carbon fiber cotton and a production process thereof.
In order to achieve the purpose, the invention adopts the following technical scheme: the multifunctional activated carbon fiber cotton comprises a first coarse fiber layer, a second activated carbon layer, a third hot-melt fiber layer and a fourth fine fiber layer, wherein the first coarse fiber layer is made of flame-retardant polyester fibers 8D, hollow three-dimensional terylene 15D and low-melting-point fibers 4D, the second activated carbon layer is made of activated carbon, the third hot-melt fiber layer is made of hot-melt fibers, the fourth fine fiber layer is made of negative ion fiber cotton 2.5D, flame-retardant polyester fibers 3D, ES fibers 1.5D and low-melting-point fibers 4D, and the components of each layer are as follows: first coarse fiber layer: 8D 20-50% of flame-retardant polyester fiber, 15D 20-60% of hollow three-dimensional terylene, 4D 30-55% of low-melting-point fiber, and a second active carbon layer: the gram weight of the activated carbon is 30-800 g, the thickness of each square meter is 2-10 mm, and the third layer of hot melt fiber layer: the weight of the hot melt fiber is 20-100 g, and the fourth fine fiber layer: 2.5D 10-30% of anion fiber cotton, 3D 20-40% of flame-retardant polyester fiber, 1.5D 25-55% of ES fiber and 4D 20-50% of low-melting-point fiber.
Preferably, the composition of each layer is as follows: first coarse fiber layer: 8D 30% of flame-retardant polyester fiber, 15D 30% of hollow three-dimensional polyester, 4D 40% of low-melting-point fiber and a second active carbon layer: the gram weight of the activated carbon is 100 g, and the thickness of each square meter is 3mm, and the third hot-melt fiber layer comprises: the weight of the hot melt fiber is 30 g, and the fourth fine fiber layer: 2.5D 20% of anion fiber cotton, 3D 30% of flame-retardant polyester fiber, 1.5D 30% of ES fiber and 4D 20% of low-melting-point fiber.
Preferably, the composition of each layer is as follows: first coarse fiber layer: 8D 40% of flame-retardant polyester fiber, 15D 30% of hollow three-dimensional polyester, 4D 30% of low-melting-point fiber, and a second active carbon layer: the gram weight of the activated carbon is 300 g, and the thickness of each square meter is 6 mm, and the third hot-melt fiber layer comprises: the weight of the hot melt fiber is 45 grams, and the fourth fine fiber layer: 2.5D 25% of anion fiber cotton, 3D 25% of flame-retardant polyester fiber, 1.5D 30% of ES fiber and 4D 20% of low-melting-point fiber.
Preferably, the composition of each layer is as follows: first coarse fiber layer: 8D 35% of flame-retardant polyester fiber, 15D 30% of hollow three-dimensional polyester, 4D 35% of low-melting-point fiber and a second active carbon layer: the gram weight of the activated carbon is 600 grams, and the thickness of each square meter is 8 millimeters, and the third hot-melt fiber layer: the weight of the hot melt fiber is 75 g, and the fourth fine fiber layer: 2.5D 15% of anion fiber cotton, 3D 25% of flame-retardant polyester fiber, 1.5D 40% of ES fiber and 4D 20% of low-melting-point fiber.
Preferably, the composition of each layer is as follows: first coarse fiber layer: 8D 30% of flame-retardant polyester fiber, 15D 35% of hollow three-dimensional polyester, 4D 35% of low-melting-point fiber and a second active carbon layer: the gram weight of the activated carbon is 800 g, the thickness of each square meter is 10mm, and the third hot-melt fiber layer: the weight of the hot melt fiber is 100 g, and the fourth fine fiber layer: 2.5D 20% of anion fiber cotton, 3D 30% of flame-retardant polyester fiber, 1.5D 30% of ES fiber and 4D 20% of low-melting-point fiber.
Preferably, the production process of the multifunctional activated carbon fiber cotton comprises the following steps:
s1: and putting the flame-retardant polyester fiber 8D, the hollow three-dimensional terylene 15D and the low-melting-point fiber 4D into the mixed cotton phase, and uniformly mixing to obtain a crude fiber mixed material.
S2: placing the crude fiber mixed material into a carding machine, carding into a cotton net by the carding machine, conveying the cotton net to a cotton paving transverse layer, transversely paving cotton blocks layer by layer on a cotton conveying curtain by the mixed cotton which is grabbed in the straight direction through a swinging hopper, wherein the gram weight of the whole cotton layer is 50-1000 grams per square meter, and forming a first crude fiber layer which is overlapped in multiple layers.
S3: the first layer of coarse fiber layer is conveyed to the position below the automatic powder scattering machine through the conveying belt, the extrusion plate is pushed through the air cylinder, active carbon in the powder scattering box is distributed over the whole powder scattering box, the vibration pump is started afterwards, and the active carbon powder in the powder scattering box is scattered on the surface of the first layer of coarse fiber layer through the powder falling hole through the vibration of the vibration pump to form a second layer of active carbon layer.
S4: and conveying the first coarse fiber layer sprayed with the activated carbon powder to a unreeling machine through a conveyer belt, and throwing a hot-melt fiber net film to uniformly cover the surface of the second activated carbon layer to form a third hot-melt fiber layer.
S5: putting the anion cellucotton 2.5D, the flame-retardant polyester fiber 3D, ES fiber 1.5D and the low-melting-point fiber 4D into the mixed cotton phase, and uniformly mixing to obtain a fine fiber mixed material.
S6: putting the fine fiber mixed material into a carding machine, carding into a cotton net, conveying the cotton net to a cotton paving transverse layer, transversely paving cotton blocks layer by layer on a cotton conveying curtain through a swinging hopper to form a plurality of layers of overlapped cotton blocks, wherein the gram weight of the whole cotton layer is 50-1000 grams per square meter, and then overlapping the cotton blocks on the surface of a third hot-melt fiber layer to form a fourth fine fiber layer.
S7: the four layers are conveyed into a double-net clamping oven by a conveying curtain, the temperature of the oven is 160-220 ℃ through a hot air circulating system of the oven, and the four layers are cooled and formed through high-temperature hot pressing, wherein the formed product has the gram weight of 80-2000 g per square meter and the thickness of 0.5-100 mm.
Preferably, in the operation S3, the diameter of the activated carbon powder is 0.03 mm.
Preferably, the multifunctional activated carbon fiber cotton is applied to air filtration or water filtration.
Preferably, the thickness of the second activated carbon layer is 2mm to 10 mm.
Compared with the prior art, the invention has the advantages and positive effects that,
according to the invention, the first coarse fiber layer, the second activated carbon layer, the third hot-melt fiber layer and the fourth fine fiber layer are arranged, so that the gradient-shaped filtering effect is formed from coarse fibers to fine fibers in the product structure, and when air and water are filtered, harmful substances in air and water can be filtered from coarse filtering to fine filtering, so that a better filtering effect is achieved.
Drawings
FIG. 1 is a schematic view of the overall structure of a multifunctional activated carbon fiber cotton
Fig. 2 is a process flow chart of the production process of the multifunctional activated carbon fiber cotton provided by the invention.
Illustration of the drawings:
1. a first coarse fiber layer; 2. a second activated carbon layer; 3. a third hot-melt fiber layer; 4. and a fourth fine fiber layer.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
The technical solution of the present invention will be described in detail below with reference to specific examples.
Referring to fig. 1 and 2, the present invention provides a multifunctional activated carbon fiber cotton, which is composed of a first coarse fiber layer 1, a second activated carbon layer 2, a third hot-melt fiber layer 3, and a fourth fine fiber layer 4, wherein the raw materials for producing the first coarse fiber layer 1 are composed of flame-retardant polyester fibers 8D, hollow three-dimensional polyester fibers 15D, and low-melting fibers 4D, and the second activated carbon layer 2 is composed of activated carbon, preferably, the diameter of the activated carbon powder is 0.03 mm; the thickness of the second activated carbon layer 2 is 2mm to 10 mm; the third hot melt fiber layer 3 is composed of hot melt fibers, the production raw materials of the fourth fine fiber layer 4 are composed of anion cellucotton 2.5D, flame-retardant polyester fiber 3D, ES fiber 1.5D and low-melting-point fiber 4D, and the components of each layer are as follows: first coarse fiber layer 1: 8D 20-50% of flame-retardant polyester fiber, 15D 20-60% of hollow three-dimensional terylene, 4D 30-55% of low-melting-point fiber, and a second active carbon layer 2: the gram weight of the activated carbon is 30-800 g, the thickness of each square meter is 2-10 mm, and the third hot-melt fiber layer 3: the weight of the hot melt fiber is 20-100 g, and the weight of the fourth fine fiber layer 4: 2.5D 10-30% of anion fiber cotton, 3D 20-40% of flame-retardant polyester fiber, 1.5D 25-55% of ES fiber, 4D 20-50% of low-melting-point fiber, and the production process steps of the multifunctional activated carbon fiber cotton are composed of S1-S7.
Example one
Each layer comprises the following components: first coarse fiber layer 1: 8D 30% of flame-retardant polyester fiber, 15D 30% of hollow three-dimensional polyester, 4D 40% of low-melting-point fiber, and a second activated carbon layer 2: the gram weight of the activated carbon is 100 g, and the thickness of each square meter is 3mm, and the third hot-melt fiber layer 3: the weight of the hot melt fiber is 30 g, and the fourth fine fiber layer 4: 2.5D 20% of anion fiber cotton, 3D 30% of flame-retardant polyester fiber, 1.5D 30% of ES fiber and 4D 20% of low-melting-point fiber.
S1: and putting the flame-retardant polyester fiber 8D, the hollow three-dimensional terylene 15D and the low-melting-point fiber 4D into the mixed cotton phase, and uniformly mixing to obtain a crude fiber mixed material.
S2: putting the crude fiber mixed material into a carding machine, carding into a cotton net by the carding machine, conveying the cotton net to a cotton paving transverse layer, transversely paving cotton blocks layer by layer on a cotton conveying curtain by a swinging hopper after the cotton mixed material is grabbed in a straight direction, wherein the gram weight of the whole cotton layer is 80 grams per square meter, and forming a first crude fiber layer 1 which is overlapped in multiple layers.
S3: carry first layer coarse fibre layer 1 to automatic duster through the conveyer belt under, promote the stripper plate through the cylinder, make the active carbon in the dusting box spread throughout in whole dusting box, start the vibrating pump afterwards, through the vibration of vibrating pump, make the active carbon powder in the dusting box spill to the surface of first layer coarse fibre layer 1 through the hole that falls powder, form second layer active carbon layer 2.
S4: and conveying the first coarse fiber layer 1 sprayed with the activated carbon powder to a unreeling machine through a conveyer belt, and throwing a hot-melt fiber net film to uniformly cover the surface of the second activated carbon layer 2 to form a third hot-melt fiber layer 3.
S5: putting the anion cellucotton 2.5D, the flame-retardant polyester fiber 3D, ES fiber 1.5D and the low-melting-point fiber 4D into the mixed cotton phase, and uniformly mixing to obtain a fine fiber mixed material.
S6: putting the fine fiber mixed material into a carding machine, carding into a cotton net, conveying the cotton net to a cotton paving transverse laying layer, transversely laying cotton blocks layer by layer on a cotton conveying curtain through a swinging hopper to form multilayer overlapping, wherein the gram weight of the whole cotton layer is 130 g per square meter, and then overlapping on the surface of the third hot-melt fiber layer 3 to form a fourth fine fiber layer 4.
S7: conveying the four layers together into a double-net clamping oven through a conveying curtain, passing through a hot air circulating system of the oven, wherein the temperature of the oven is 170 ℃, and carrying out high-temperature hot pressing to cool and mold, wherein the molded product has the gram weight of 160 grams per square meter and the thickness of 8 millimeters.
Example two
Each layer comprises the following components: first coarse fiber layer 1: 8D 40% of flame-retardant polyester fiber, 15D 30% of hollow three-dimensional polyester, 4D 30% of low-melting-point fiber, and a second activated carbon layer 2: the gram weight of the activated carbon is 300 g, and the thickness of each square meter is 6 mm, and the third hot-melt fiber layer 3: the weight of the hot melt fiber was 45 grams, the fourth fine fiber layer 4: 2.5D 25% of anion fiber cotton, 3D 25% of flame-retardant polyester fiber, 1.5D 30% of ES fiber and 4D 20% of low-melting-point fiber.
S1: and putting the flame-retardant polyester fiber 8D, the hollow three-dimensional terylene 15D and the low-melting-point fiber 4D into the mixed cotton phase, and uniformly mixing to obtain a crude fiber mixed material.
S2: putting the crude fiber mixed material into a carding machine, carding into a cotton net by the carding machine, conveying the cotton net to a cotton paving transverse layer, transversely paving cotton blocks layer by layer on a cotton conveying curtain by a swinging hopper after the cotton mixed material is grabbed in a straight direction, wherein the gram weight of the whole cotton layer is 220 grams per square meter, and forming a first crude fiber layer 1 which is overlapped in multiple layers.
S3: carry first layer coarse fibre layer 1 to automatic duster through the conveyer belt under, promote the stripper plate through the cylinder, make the active carbon in the dusting box spread throughout in whole dusting box, start the vibrating pump afterwards, through the vibration of vibrating pump, make the active carbon powder in the dusting box spill to the surface of first layer coarse fibre layer 1 through the hole that falls powder, form second layer active carbon layer 2.
S4: and conveying the first coarse fiber layer 1 sprayed with the activated carbon powder to a unreeling machine through a conveyer belt, and throwing a hot-melt fiber net film to uniformly cover the surface of the second activated carbon layer 2 to form a third hot-melt fiber layer 3.
S5: putting the anion cellucotton 2.5D, the flame-retardant polyester fiber 3D, ES fiber 1.5D and the low-melting-point fiber 4D into the mixed cotton phase, and uniformly mixing to obtain a fine fiber mixed material.
S6: putting the fine fiber mixed material into a carding machine, carding into a cotton net, conveying the cotton net to a cotton paving transverse laying layer, transversely laying cotton blocks layer by layer on a cotton conveying curtain through a swinging hopper to form multilayer overlapping, wherein the gram weight of the whole cotton layer is 230 grams per square meter, and then overlapping the cotton blocks on the surface of the third hot-melt fiber layer 3 to form a fourth fine fiber layer 4.
S7: conveying the four layers together into a double-net clamping oven through a conveying curtain, passing through a hot air circulating system of the oven, controlling the temperature of the oven to be 180 ℃, carrying out high-temperature hot pressing to cool and mold, wherein the molded product has the gram weight of 270 grams per square meter and the thickness of 14 millimeters.
EXAMPLE III
Each layer comprises the following components: first coarse fiber layer 1: 8D 35% of flame-retardant polyester fiber, 15D 30% of hollow three-dimensional terylene, 4D 35% of low-melting-point fiber, and a second active carbon layer 2: the gram weight of the activated carbon is 600 grams, and the thickness of each square meter is 8 millimeters, and the third hot-melt fiber layer 3: the weight of the hot melt fiber was 75 grams, the fourth fine fiber layer 4: 2.5D 15% of anion fiber cotton, 3D 25% of flame-retardant polyester fiber, 1.5D 40% of ES fiber and 4D 20% of low-melting-point fiber.
S1: and putting the flame-retardant polyester fiber 8D, the hollow three-dimensional terylene 15D and the low-melting-point fiber 4D into the mixed cotton phase, and uniformly mixing to obtain a crude fiber mixed material.
S2: putting the crude fiber mixed material into a carding machine, carding into a cotton net by the carding machine, conveying the cotton net to a cotton paving transverse layer, transversely paving cotton blocks layer by layer on a cotton conveying curtain by a swinging hopper after the cotton mixed material is grabbed in a straight direction, wherein the gram weight of the whole cotton layer is 430 grams per square meter, and forming a first crude fiber layer 1 which is formed by overlapping a plurality of layers.
S3: carry first layer coarse fibre layer 1 to automatic duster through the conveyer belt under, promote the stripper plate through the cylinder, make the active carbon in the dusting box spread throughout in whole dusting box, start the vibrating pump afterwards, through the vibration of vibrating pump, make the active carbon powder in the dusting box spill to the surface of first layer coarse fibre layer 1 through the hole that falls powder, form second layer active carbon layer 2.
S4: and conveying the first coarse fiber layer 1 sprayed with the activated carbon powder to a unreeling machine through a conveyer belt, and throwing a hot-melt fiber net film to uniformly cover the surface of the second activated carbon layer 2 to form a third hot-melt fiber layer 3.
S5: putting the anion cellucotton 2.5D, the flame-retardant polyester fiber 3D, ES fiber 1.5D and the low-melting-point fiber 4D into the mixed cotton phase, and uniformly mixing to obtain a fine fiber mixed material.
S6: putting the fine fiber mixed material into a carding machine, carding into a cotton net, conveying the cotton net to a cotton paving transverse laying layer, transversely laying cotton blocks layer by layer on a cotton conveying curtain through a swinging hopper to form multilayer overlapping, wherein the gram weight of the whole cotton layer is 380 g per square meter, and then overlapping on the surface of the third hot-melt fiber layer 3 to form a fourth fine fiber layer 4.
S7: conveying the four layers together into a double-net clamping oven through a conveying curtain, passing through a hot air circulating system of the oven, wherein the temperature of the oven is 195 ℃, and carrying out high-temperature hot pressing to cool and mold, wherein the molded product has the gram weight of 600 grams per square meter and the thickness of 24 millimeters.
Example four
Each layer comprises the following components: first coarse fiber layer 1: 8D 30% of flame-retardant polyester fiber, 15D 35% of hollow three-dimensional polyester, 4D 35% of low-melting-point fiber, and a second activated carbon layer 2: the gram weight of the activated carbon is 800 g, the thickness of each square meter is 10mm, and the third hot-melt fiber layer 3: the weight of the hot melt fiber is 100 g, and the weight of the fourth fine fiber layer 4: 2.5D 20% of anion fiber cotton, 3D 30% of flame-retardant polyester fiber, 1.5D 30% of ES fiber and 4D 20% of low-melting-point fiber.
S1: and putting the flame-retardant polyester fiber 8D, the hollow three-dimensional terylene 15D and the low-melting-point fiber 4D into the mixed cotton phase, and uniformly mixing to obtain a crude fiber mixed material.
S2: putting the crude fiber mixed material into a carding machine, carding into a cotton net by the carding machine, conveying the cotton net to a cotton paving transverse layer, transversely paving cotton blocks layer by layer on a cotton conveying curtain by a swinging hopper after the cotton mixed material is grabbed in a straight direction, wherein the gram weight of the whole cotton layer is 650 grams per square meter, and forming a first crude fiber layer 1 which is formed by overlapping a plurality of layers.
S3: carry first layer coarse fibre layer 1 to automatic duster through the conveyer belt under, promote the stripper plate through the cylinder, make the active carbon in the dusting box spread throughout in whole dusting box, start the vibrating pump afterwards, through the vibration of vibrating pump, make the active carbon powder in the dusting box spill to the surface of first layer coarse fibre layer 1 through the hole that falls powder, form second layer active carbon layer 2.
S4: and conveying the first coarse fiber layer 1 sprayed with the activated carbon powder to a unreeling machine through a conveyer belt, and throwing a hot-melt fiber net film to uniformly cover the surface of the second activated carbon layer 2 to form a third hot-melt fiber layer 3.
S5: putting the anion cellucotton 2.5D, the flame-retardant polyester fiber 3D, ES fiber 1.5D and the low-melting-point fiber 4D into the mixed cotton phase, and uniformly mixing to obtain a fine fiber mixed material.
S6: putting the fine fiber mixed material into a carding machine, carding into a cotton net, conveying the cotton net to a cotton paving transverse laying layer, transversely laying cotton blocks layer by layer on a cotton conveying curtain through a swinging hopper to form multilayer overlapping, wherein the gram weight of the whole cotton layer is 710 grams per square meter, and then overlapping the cotton blocks on the surface of the third hot-melt fiber layer 3 to form a fourth fine fiber layer 4.
S7: conveying the four layers together into a double-net clamping oven through a conveying curtain, passing through a hot air circulating system of the oven, wherein the temperature of the oven is 210 ℃, and carrying out high-temperature hot pressing to cool and mold, wherein the molded product has the gram weight of 1200 grams per square meter and the thickness of 45 millimeters.
The multifunctional activated carbon fiber cotton of the first to fourth embodiments is taken and respectively installed on an air purifier, the air purifier is placed in a closed room with the same size, formaldehyde with the same content is introduced into the room, and the air is purified through the air purifier.
The formaldehyde content in the air was measured at the beginning of the experiment, one day after the experiment and two days after the experiment, respectively, and the results are shown in table 1, where table 1 shows the effect of using the product of each example.
Experimental group Index (I) At the beginning of the experiment One day after the experiment Two days after the experiment
Example one Formaldehyde content (mg/cubic meter) 1.1 mg/cubic meter 0.73 mg/cubic meter 0.65 mg/cubic meter
Example two Formaldehyde content (mg/cubic meter) 1.1 mg/cubic meter 0.68 mg/cubic meter 0.53 mg/cubic meter
EXAMPLE III Formaldehyde content (mg/cubic meter) 1.1 mg/cubic meter 0.52 mg/cubic meter 0.27 mg/cubic meter
Example four Formaldehyde content (mg/cubic meter) 1.1 mg/cubic meter 0.47 mg/cubic meter 0.18 mg/cubic meter
As can be seen from the data in table 1, the air purification effects of the embodiments one to four are the most preferable embodiments, and the best purification effect is obtained in the embodiment four.
The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention in other forms, and any person skilled in the art may apply the above modifications or changes to the equivalent embodiments with equivalent changes by using the technical contents disclosed in the above description to other fields, but any simple modification, equivalent change and change made to the above embodiments according to the technical essence of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims (7)

1. A multifunctional activated carbon fiber cotton is characterized in that: multifunctional activated carbon fiber cotton comprises first layer coarse fiber layer (1), second layer activated carbon layer (2), third layer hot melt fibre layer (3) and fourth layer thin fibre layer (4), the raw materials for production of first layer coarse fiber layer (1) comprises fire-retardant polyester fiber 8D, three-dimensional dacron 15D of cavity and low melting point fibre 4D, second layer activated carbon layer (2) comprises activated carbon, third layer hot melt fibre layer (3) comprises hot melt fibre, the raw materials for production of fourth layer thin fibre layer (4) comprises anion fiber cotton 2.5D, fire-retardant polyester fiber 3D, ES fibre 1.5D and low melting point fibre 4D, and each layer composition is as follows: first coarse fiber layer (1): 8D 20-50% of flame-retardant polyester fiber, 15D 20-60% of hollow three-dimensional terylene, 4D 30-55% of low-melting-point fiber, and a second active carbon layer (2): the gram weight of the activated carbon is 30-800 g, the thickness of each square meter is 2-10 mm, and the third hot-melt fiber layer (3): the weight of the hot melt fiber is 20-100 g, and the fourth fine fiber layer (4): 2.5D 10-30% of anion fiber cotton, 3D 20-40% of flame-retardant polyester fiber, 1.5D 25-55% of ES fiber and 4D 20-50% of low-melting-point fiber;
the multifunctional activated carbon fiber cotton is applied to air filtration or water filtration;
the production process of the multifunctional activated carbon fiber cotton comprises the following steps:
s1: putting the flame-retardant polyester fiber 8D, the hollow three-dimensional terylene 15D and the low-melting-point fiber 4D into a mixed cotton phase, and uniformly mixing to obtain a crude fiber mixed material;
s2: putting the crude fiber mixed material into a carding machine, carding into a cotton net by the carding machine, conveying the cotton net to a cotton laying transverse layer, transversely laying cotton blocks layer by layer on a cotton conveying curtain by a swinging hopper of the mixed cotton which is grabbed in a straight direction, wherein the gram weight of the whole cotton layer is 50-1000 grams per square meter, and forming a first crude fiber layer (1) which is overlapped in multiple layers;
s3: conveying the first coarse fiber layer (1) to the position below an automatic powder scattering machine through a conveying belt, pushing an extrusion plate through an air cylinder to enable active carbon in a powder scattering box to be distributed on the whole powder scattering box, then starting a vibration pump, and enabling active carbon powder in the powder scattering box to be scattered on the surface of the first coarse fiber layer (1) through a powder falling hole through vibration of the vibration pump to form a second active carbon layer (2);
s4: conveying the first coarse fiber layer (1) sprayed with the activated carbon powder to a unreeling machine through a conveyer belt, and throwing a hot-melt fiber net film to uniformly cover the surface of the second activated carbon layer (2) to form a third hot-melt fiber layer (3);
s5: putting the anion cellucotton 2.5D, the flame-retardant polyester fiber 3D, ES fiber 1.5D and the low-melting-point fiber 4D into a cotton mixing phase, and uniformly mixing to obtain a fine fiber mixed material;
s6: putting the fine fiber mixed material into a carding machine, carding into a cotton net, conveying the cotton net to a cotton paving transverse layer, transversely paving cotton blocks layer by layer on a cotton conveying curtain through a swinging hopper to form a plurality of layers of overlapped cotton blocks, wherein the gram weight of the whole cotton layer is 50-1000 grams per square meter, and then overlapping the cotton blocks on the surface of a third hot-melt fiber layer (3) to form a fourth fine fiber layer (4);
s7: the four layers are conveyed into a double-net clamping oven by a conveying curtain, the temperature of the oven is 160-220 ℃ through a hot air circulating system of the oven, and the four layers are cooled and formed through high-temperature hot pressing, wherein the formed product has the gram weight of 80-2000 g per square meter and the thickness of 0.5-100 mm.
2. The multifunctional activated carbon fiber cotton according to claim 1, wherein: each layer comprises the following components: first coarse fiber layer (1): 8D 30% of flame-retardant polyester fiber, 15D 30% of hollow three-dimensional terylene, 4D 40% of low-melting-point fiber, and a second active carbon layer (2): the gram weight of the activated carbon is 100 g, and the thickness of each square meter is 3mm, and the third hot-melt fiber layer (3): the weight of the hot melt fiber is 30 g, and the fourth fine fiber layer (4): 2.5D 20% of anion fiber cotton, 3D 30% of flame-retardant polyester fiber, 1.5D 30% of ES fiber and 4D 20% of low-melting-point fiber.
3. The multifunctional activated carbon fiber cotton according to claim 1, wherein: each layer comprises the following components: first coarse fiber layer (1): 8D 40% of flame-retardant polyester fiber, 15D 30% of hollow three-dimensional terylene, 4D 30% of low-melting-point fiber, and a second active carbon layer (2): the gram weight of the activated carbon is 300 g, and the thickness of the activated carbon per square meter is 6 mm, and the third hot-melt fiber layer (3): the weight of the hot melt fiber is 45 g, and the fourth fine fiber layer (4): 2.5D 25% of anion fiber cotton, 3D 25% of flame-retardant polyester fiber, 1.5D 30% of ES fiber and 4D 20% of low-melting-point fiber.
4. The multifunctional activated carbon fiber cotton according to claim 1, wherein: each layer comprises the following components: first coarse fiber layer (1): 8D 35% of flame-retardant polyester fiber, 15D 30% of hollow three-dimensional terylene, 4D 35% of low-melting-point fiber, and a second active carbon layer (2): the gram weight of the activated carbon is 600 grams, the thickness of each square meter is 8 millimeters, and the third hot-melt fiber layer (3): the weight of the hot melt fiber is 75 g, and the fourth fine fiber layer (4): 2.5D 15% of anion fiber cotton, 3D 25% of flame-retardant polyester fiber, 1.5D 40% of ES fiber and 4D 20% of low-melting-point fiber.
5. The multifunctional activated carbon fiber cotton according to claim 1, wherein: each layer comprises the following components: first coarse fiber layer (1): 8D 30% of flame-retardant polyester fiber, 15D 35% of hollow three-dimensional terylene, 4D 35% of low-melting-point fiber, and a second active carbon layer (2): the gram weight of the activated carbon is 800 g, the thickness of each square meter is 10mm, and the third hot-melt fiber layer (3): the weight of the hot melt fiber is 100 g, and the fourth fine fiber layer (4): 2.5D 20% of anion fiber cotton, 3D 30% of flame-retardant polyester fiber, 1.5D 30% of ES fiber and 4D 20% of low-melting-point fiber.
6. The multifunctional activated carbon fiber cotton according to claim 1, wherein: in the operation S3, the diameter of the activated carbon powder is 0.03 mm.
7. The multifunctional activated carbon fiber cotton according to claim 1, wherein: the thickness of the second activated carbon layer (2) is 2mm to 10 mm.
CN202011365355.2A 2020-11-28 2020-11-28 Multifunctional activated carbon fiber cotton and production process thereof Active CN112495059B (en)

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Publication number Priority date Publication date Assignee Title
GB1542537A (en) * 1976-05-08 1979-03-21 Chisso Corp Method of and apparatus for producing hollow-cylindrically shaped fibrous articles
CN201375862Y (en) * 2009-03-09 2010-01-06 北口工业有限公司 Sterilizing and deodorizing carriage filter net
CN102787446A (en) * 2012-06-28 2012-11-21 东莞市莲盈无纺科技有限公司 Hard cotton and anion air purification plate, and manufacturing methods thereof
CN109162021A (en) * 2017-09-21 2019-01-08 东北大学 The manufacturing method of high-speed rail efficient low-resistance fibrous layer air filting material
CN110685071A (en) * 2019-11-12 2020-01-14 广州中樱汽车零部件有限公司 Low-VOC (volatile organic compound) tiled cotton for automobile and preparation method thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1542537A (en) * 1976-05-08 1979-03-21 Chisso Corp Method of and apparatus for producing hollow-cylindrically shaped fibrous articles
CN201375862Y (en) * 2009-03-09 2010-01-06 北口工业有限公司 Sterilizing and deodorizing carriage filter net
CN102787446A (en) * 2012-06-28 2012-11-21 东莞市莲盈无纺科技有限公司 Hard cotton and anion air purification plate, and manufacturing methods thereof
CN109162021A (en) * 2017-09-21 2019-01-08 东北大学 The manufacturing method of high-speed rail efficient low-resistance fibrous layer air filting material
CN110685071A (en) * 2019-11-12 2020-01-14 广州中樱汽车零部件有限公司 Low-VOC (volatile organic compound) tiled cotton for automobile and preparation method thereof

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