CN107841829B - Flocculus with antibacterial, warm-keeping and far-infrared functions and preparation method thereof - Google Patents
Flocculus with antibacterial, warm-keeping and far-infrared functions and preparation method thereof Download PDFInfo
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4391—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece characterised by the shape of the fibres
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4326—Condensation or reaction polymers
- D04H1/435—Polyesters
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
- D04H1/541—Composite fibres, e.g. sheath-core, sea-island or side-by-side; Mixed fibres
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
- D04H1/542—Adhesive fibres
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/58—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
- D04H1/593—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives to layered webs
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Nonwoven Fabrics (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Laminated Bodies (AREA)
Abstract
The invention discloses a flocculus with antibacterial, warm-keeping and far-infrared functions and a preparation method thereof. The flocculus comprises a flocculus middle framework layer serving as a main body, and an upper surface layer and a lower surface layer which are respectively positioned on the upper surface and the lower surface of the flocculus middle framework layer; the middle framework layer of the flocculus is composed of silicon-containing graphene polyester fibers with the fineness of 3D, 6D and 7D, and the upper surface layer and the lower surface layer are composed of silicon-containing graphene polyester fibers with the fineness of 0.9D, 1.2D and 1.5D. The wadding sheet has good heat insulation effect, antibacterial property, heat retention property, rebound resilience, air permeability and far infrared property, and is particularly suitable for being used as a filling material.
Description
Technical Field
The invention relates to the technical field of warm-keeping flocculus, relates to a flocculus and a preparation method thereof, and particularly relates to a flocculus with antibacterial, warm-keeping and far-infrared functions and a preparation method thereof.
Background
The wadding sheet can have good heat insulation effect due to the structural characteristics of fluffiness, large amount of air and the like. It has long been customary to use down, cotton, wool, etc. as padding for battings. With the development of the fiber industry, the new flocculus filling materials such as terylene and acrylic fibers mainly made of chemical fibers are successfully developed in succession. Breaks through the traditional thermal insulation filling materials such as cotton wool, down feather and the like.
The research and development of the warm-keeping filling material are dedicated to the purpose of improving the warm-keeping effect and having the functionality by using a novel material.
CN 106400472a provides a preparation method of antibacterial wool flocculus, comprising: soaking the wool flocculus in nano silver dispersion liquid for treatment for 20-40 min, then treating in a reducing agent for 20-40 min to make the liquid content of the wool flocculus be 70-80%, then carrying out rolling treatment to obtain rolled wool flocculus with liquid content of 8-12%, finally drying at 100-110 deg.C to obtain the invented antibacterial wool flocculus. The obtained antibacterial wool flocculus has good air permeability, moisture discharging performance and antibacterial performance. But the heat-insulating effect of the flocculus is reduced, and the preparation method is complex and is not beneficial to industrial production.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide a flocculus with bacteriostatic, warm-keeping and far-infrared functions and a preparation method thereof. The wadding sheet has a fluffy structure, has excellent antibacterial property, heat retention property, rebound resilience, air permeability and far infrared property, and is very suitable for being used as a filling material.
In order to achieve the purpose, the invention adopts the following technical scheme:
in a first aspect, the present invention provides a flocculus, especially a flocculus with antibacterial, warm keeping and far infrared functions, comprising a middle skeleton layer as a main body, and an upper surface layer and a lower surface layer respectively located on the upper surface and the lower surface of the middle skeleton layer of the flocculus;
the middle framework layer of the flocculus is composed of silicon-containing graphene polyester fibers with the fineness of 3D, 6D and 7D, and the upper surface layer and the lower surface layer are composed of silicon-containing graphene polyester fibers with the fineness of 0.9D, 1.2D and 1.5D.
In the flocculus, the coarse-denier silicon-containing graphene polyester fiber is used as a middle framework layer, the linear density of the fiber is higher, and the coarse-denier silicon-containing graphene polyester fiber can be used as a framework to enable the flocculus to retain more air and improve resilience and heat retention performance. The surface layers (namely the upper surface layer and the lower surface layer) of the flocculus are fine-denier silicon-containing graphene polyester fibers, so that the heat preservation performance and the softness and compactness of the flocculus can be improved, and the heat conduction is slowed down.
According to the invention, the coarse denier silicon-containing graphene polyester fibers with different deniers of 3D, 6D and 7D and the fine denier silicon-containing graphene polyester fibers with different deniers of 0.9D, 1.2D and 1.5D are cooperatively used, the coarse denier fibers are used as the middle skeleton layer, and the fine denier fibers are used as the surface layer, so that the flocculus has excellent comprehensive performance and exhibits excellent functions of bacteriostasis, heat preservation and far infrared.
The following is a preferred technical solution of the present invention, but not a limitation to the technical solution provided by the present invention, and the technical objects and advantageous effects of the present invention can be better achieved and achieved by the following preferred technical solution.
Preferably, the upper and lower skin layers independently have a thickness of 7mm to 10mm, such as 7mm, 7.5mm, 8mm, 8.5mm, 9mm, 9.5mm, or 10mm, and the like, the "independently" meaning: the thicknesses of the upper surface layer and the lower surface layer are independent respectively, the thickness of the upper surface layer is selected from a value within the range of 7mm-10mm, and the thickness of the lower surface layer is also selected from a value within the range of 7mm-10 mm.
Preferably, the thickness of the batt intermediate frame layer is 20mm to 25mm, such as 20mm, 20.5mm, 21mm, 21.5mm, 22mm, 23mm, 23.5mm, 24mm, 25mm, or the like.
Preferably, the middle skeleton layer of the flocculus is composed of silicon-containing hollow three-dimensional crimped graphene polyester fibers with fineness of 3D, 6D and 7D. According to the preferred technical scheme, the middle framework layer of the flocculus is limited to be the specific silicon-containing hollow three-dimensional crimped graphene polyester fiber, and the silicon-containing graphene polyester fiber used on the surface layer (which is of a non-hollow structure) is matched with the specific silicon-containing hollow three-dimensional crimped graphene polyester fiber for use, so that the antibacterial performance, the heat retention property, the rebound resilience, the air permeability and the far infrared performance of the flocculus can be better matched and improved.
Preferably, the lengths of the silicon-containing graphene polyester fibers in the middle skeleton layer of the flocculus are both 64 mm.
Preferably, the lengths of the silicon-containing graphene polyester fibers in the upper surface layer and the lower surface layer are both 51 mm.
Preferably, the mass ratio of the silicon-containing graphene polyester fibers with the fineness of 3D, 6D, 7D, 0.9D, 1.2D and 1.5D is (15-25): 15-30): 18-25): 4-7): 9-15: (9-15). For example 31:15:25:7:10:25, 35:20:21:7:12:25, 34:25:25:4:11:25, 40:16:20:7:10:25, 43:22:25:4:13:25, 34:18:25:7:14:20 or 32:20:25:7:12: 22. Under the optimal condition, the antibacterial, warm-keeping and far-infrared functions of the silicon-containing hollow three-dimensional crimped graphene polyester fibers with different titer and diameter specifications and the silicon-containing graphene polyester fibers are integrated, reasonable material structure hierarchical arrangement can be obtained, the flake structure is fluffy, a large amount of static air is contained, and the Paul value, the heat preservation rate, the rebound resilience and the air permeability of the flake structure are very good.
Preferably, the grammage of the batt is 120g/m2～140g/m2E.g. 120g/m2、125g/m2、130g/m2、135g/m2Or 140g/m2And the like.
In a second aspect, the present invention provides a process for preparing a batt according to the first aspect, comprising the steps of:
(1) selecting and mixing fiber raw materials
Mixing silicon-containing graphene polyester fibers with the fineness of 3D, 6D and 7D respectively with a thermal fuse to obtain a first mixture;
mixing the silicon-containing graphene polyester fibers with the fineness of 0.9D, 1.2D and 1.5D respectively with a hot melt silk to obtain a second mixture;
(2) into a net
Carding and hot-melt bonding reinforcement are carried out on the first mixture to obtain a first fiber web;
taking a part of the second mixture for carding, hot-melting bonding and reinforcing to obtain a second fiber web;
taking the other part of the second mixture for carding, hot-melting bonding and reinforcing to obtain a third fiber web;
(3) fiber reinforcement
And respectively paving the second fiber web and the third fiber web on the upper side and the lower side of the first fiber web, and then carrying out glue spraying reinforcement treatment to obtain the flocculus, wherein the first fiber web forms a middle framework layer of the flocculus, and the second fiber web and the third fiber web form a surface layer of the flocculus.
In the process of selecting and mixing the fiber raw materials in the step (1), the first mixture and the second mixture are not prepared in sequence, and can be prepared by a person skilled in the art according to the requirement.
In the step (2) of the web forming process, the first web, the second web and the third web are prepared in no sequence, and can be prepared as required by one skilled in the art.
In step (2) of the invention, the thermal fuse is used as a thermal adhesive, and can be melted in the processing process, and solidified after being melted by heat at the cross point, thereby bonding the fibers together to achieve the reinforcement effect.
According to the method, the first fiber web, the second fiber web and the third fiber web are obtained through the web formation in the step (2), and the silicon-containing graphene polyester fibers are arranged in the first fiber web, the second fiber web and the third fiber web in a disordered mode.
As a preferred technical scheme of the method, the preparation method of the silicon-containing graphene polyester fiber comprises the following steps: the preparation method comprises the steps of firstly preparing graphene polyester master batches by taking graphene powder and polyester as raw materials, and then preparing the silicon-containing graphene polyester fiber by spinning and post-processing the graphene polyester master batches and polyester chips.
In the preferred technical scheme for preparing the silicon-containing graphene polyester fiber, except for the step of firstly preparing the graphene polyester master batch by using the graphene powder and the polyester as raw materials, other process supplements can be performed by referring to the prior art, such as the process flow of preparing the silicon-containing polyester fiber by Shanghai Deforman chemical fiber company Limited, and the method disclosed by the prior art can be referred to for the adjustment of the fineness and the length of the prepared fiber and the adjustment of the structure whether the interior is hollow or not.
More specifically, the preparation method of the silicon-containing graphene polyester fiber comprises the following steps: the preparation method comprises the steps of firstly, preparing graphene polyester master batches by taking graphene powder and polyester as raw materials, then adding the graphene polyester master batches into polyester slices according to a certain proportion, and preparing the silicon-containing graphene polyester fiber through the processes of drying, melting, cooling, oiling, drafting and the like.
In the invention, the "graphene" in the "silicon-containing graphene polyester fiber" and the "graphene powder" both refer to: each carbon atom is sp2The carbon nano material is characterized by hybridizing a honeycomb-structured carbon atom single layer formed by bonding with three adjacent carbon atoms or stacking the carbon atom single layers, wherein the number of the carbon atom single layers is not more than 10.
Preferably, in the preparation process of the silicon-containing graphene polyester fiber, the mass content of the graphene polyester master batch in the silicon-containing graphene polyester fiber is 5% to 25%, for example, 5%, 6%, 7.5%, 10%, 12.5%, 15%, 18%, 20%, 22% or 25% and the like; the mass content of the graphene in the graphene polyester master batch is 5% -15%, for example, 5%, 7.5%, 10%, 13%, 14%, 15% or the like.
Preferably, the titer of the silicon-containing graphene polyester fiber in the step (1) is respectively 3D, 6D and 7D, and the titer is as follows: the titer is 3D, 6D and 7D respectively.
Preferably, the lengths of the silicon-containing graphene polyester fibers with the titer of 3D, 6D and 7D in the step (1) are all 64 mm.
Preferably, the lengths of the silicon-containing graphene polyester fibers with the fineness of 0.9D, 1.2D and 1.5D in the step (1) are all 51 mm.
Preferably, the mass percentage of the 3D fiber containing silicon graphene polyester fiber is 15% -25%, such as 15%, 17%, 18%, 20%, 21%, 22%, 23% or 25% or the like, based on 100% of the total mass of the first and second mixed materials; the mass percentage of the silicon-containing graphene polyester fiber with the fineness of 6D is 15% -30%, such as 15%, 18%, 20%, 22.5%, 25%, 27%, 29% or 30% and the like; the mass percentage of the silicon-containing graphene polyester fiber with the fineness of 7D is 18-25%, such as 18%, 19%, 20%, 22%, 23%, 24% or 25% and the like; the mass percentage of the silicon-containing graphene polyester fiber with the fineness of 0.9D is 4-7%, such as 4%, 4.5%, 5%, 5.2%, 5.5%, 5.8%, 6%, 6.5% or 7% and the like; the mass percentage of the silicon-containing graphene polyester fiber with the fineness of 1.2D is 9% -15%, such as 9%, 10%, 11%, 11.5%, 12%, 13%, 14% or 15% and the like; the mass percentage of the silicon-containing graphene polyester fiber with the fineness of 1.5D is 9-15%, such as 9%, 10%, 11%, 11.5%, 12%, 13%, 14% or 15% and the like; the mass percentage of the total mass of the thermal fuses in the first mixture and the second mixture is 8-12%, for example 8%, 8.5%, 9%, 9.2%, 9.5%, 10%, 10.5%, 11% or 12%.
In this preferred embodiment, the mixing manner in step (1) is not limited, and for example, a manual mixing manner may be adopted.
Preferably, the second mix used in step (2) to prepare the second web comprises 30% to 50% of the total mass of the second mix formulated in step (1), such as 30%, 35%, 37%, 40%, 42.5%, 45%, 48%, or 50%, etc.
Preferably, in the carding step for preparing the first web in step (2), the first mix is conveyed at a speed of 5m/s to 8m/s, such as 5m/s, 5.5m/s, 6m/s, 6.5m/s, 7m/s, 7.2m/s or 8 m/s; the web formation speed is 10m/s to 15m/s, for example 10m/s, 11m/s, 12m/s, 14m/s, 14.5m/s or 15 m/s.
Preferably, in the carding step for preparing the second web in step (2), the second mixture is conveyed at a speed of 5m/s to 8m/s, such as 5m/s, 6m/s, 6.5m/s, 7m/s, 7.5m/s, 8m/s, or the like; the web formation speed is 10m/s to 15m/s, for example 10m/s, 11.5m/s, 12m/s, 14m/s, 14.5m/s or 15 m/s.
Preferably, in the carding step for preparing the third web in step (2), the third mixture is conveyed at a speed of 5m/s to 8m/s, such as 5m/s, 6m/s, 6.5m/s, 7m/s, 7.5m/s, 8m/s, or the like; the web formation speed is 10m/s to 15m/s, for example 10m/s, 11m/s, 12m/s, 13m/s, 14m/s, 14.5m/s or 15 m/s.
Preferably, in the step (2) of preparing the first web by hot melt bonding and reinforcing, the reinforcing temperature is 150-170 ℃, such as 150 ℃, 155 ℃, 160 ℃, 162 ℃, 165 ℃ or 170 ℃ and the like; the output speed of the web is 10m/s to 13m/s, for example 10m/s, 11m/s, 12m/s or 13m/s, etc.
Preferably, in the step (2) of hot melt bonding and reinforcing for preparing the second web, the reinforcing temperature is 150-170 ℃, such as 150 ℃, 155 ℃, 160 ℃, 162 ℃, 165 ℃ or 170 ℃ and the like; the output speed of the web is 10m/s to 13m/s, such as 10m/s, 11m/s, 12m/s, 12.5m/s or 13 m/s.
Preferably, in the step (2) of preparing the third web by hot melt bonding and reinforcing, the reinforcing temperature is 150-170 ℃, such as 150 ℃, 155 ℃, 160 ℃, 165 ℃ or 170 ℃ and the like; the output speed of the web is 10m/s to 13m/s, such as 10m/s, 11m/s, 12m/s, 12.5m/s or 13 m/s.
Preferably, in the glue spraying reinforcement treatment in the step (3), the mass percentage of the glue used in glue spraying is 4% -8%, such as 4%, 5%, 6.5%, 7%, 7.5%, 8%, or 9%, etc., based on 100% of the total mass of the first mixed material and the second mixed material.
As a further preferable technical scheme of the method, the preparation method of the flocculus comprises the following steps:
(1) selecting fiber raw materials and mixing:
mixing silicon-containing graphene polyester fibers with the fineness of 3D, the fineness of 6D and the fineness of 7D and the length of 64mm with a hot melt silk to obtain a first mixture;
mixing silicon-containing graphene polyester fibers with the fineness of 0.9D, the fineness of 1.2D and the fineness of 1.5D and the length of 51mm with a hot melt wire to obtain a second mixture;
(2) into a net
Carding and hot-melt bonding reinforcement are carried out on the first mixture to obtain a first fiber web;
taking a part of the second mixture for carding, hot-melting bonding and reinforcing to obtain a second fiber web;
taking the other part of the second mixture for carding, hot-melting bonding and reinforcing to obtain a third fiber web;
in the process of preparing the first fiber web, the second fiber web and the third fiber web, the conveying speed of the mixture in the carding step is independently 5m/s-8m/s, and the web forming speed is 10m/s-15 m/s; the reinforcing temperature of the hot melt bonding reinforcing step is independently 150-170 ℃, and the output speed of the fiber web is independently 10-13 m/s;
(3) fiber reinforcement
Respectively paving the second fiber web and the third fiber web on the upper side and the lower side of the first fiber web, and then carrying out glue spraying reinforcement treatment to obtain flocculus;
the titer of the step (1) is respectively 3D, 6D and 7D, and the mass percentages of the silicon-containing graphene polyester fibers with the lengths of 64mm are respectively 15-25%, 15-30% and 18-25%, wherein the total mass of the first mixture and the second mixture is 100%; respectively setting the titer of 0.9D, 1.2D and 1.5D, and the mass percentages of the silicon-containing graphene polyester fibers with the lengths of 51mm to be 4-7%, 9-15% and 9-15%; the mass percentage of the total mass of the thermal fuses in the first mixture and the second mixture is 8-12%; the mass percentage of the glue used for spraying the glue is 4-8%.
In a third aspect, the present invention provides the use of a batt as described in the first aspect as a filler.
Compared with the prior art, the invention has the following beneficial effects:
1. the flocculus with the functions of bacteriostasis, heat preservation and far infrared fully utilizes the heat preservation characteristic of the silicon-containing hollow three-dimensional curled graphene polyester staple fibers and the excellent bacteriostasis performance and far infrared characteristic achieved by compounding the silicon-containing hollow three-dimensional curled graphene polyester fibers and the graphene polyester fibers, and reasonably regulates the adding content of the graphene polyester fibers with various types, titer and length specifications to achieve a very good material structure level, so that the prepared flocculus has a fluffy structure, contains a large amount of standing air, has a good heat insulation effect, and has good bacteriostasis performance, heat preservation performance, rebound resilience, air permeability and far infrared performance.
2. The graphene polyester fibers of different types, different deniers and different length specifications are carded into a net and further prepared into the flocculus with the functions of bacteriostasis, heat preservation and far infrared, and the flocculus has very good Crohn value, heat preservation rate and resilience. The method is simple, easy to operate and suitable for industrial production.
Drawings
FIG. 1 is an optical microscope photograph of the surface web of the batt of example 1 of the present invention.
Detailed Description
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
In the "3D × 64 mm" according to the present invention, "X" represents a fineness before and a fiber length after. Similarly, "6D × 64 mm", "7D × 64 mm", "0.9D × 51 mm", "1.2D × 51 mm" and "1.5D × 64 mm" each indicate the fineness and length parameters of the fiber.
Example 1
This example provides a flocculus with bacteriostatic, warm-keeping and far-infrared functions, which is prepared by the following method:
(1) selecting fiber raw materials and mixing:
mixing 3 Dx64 mm silicon-containing hollow three-dimensional crimped graphene polyester fibers, 6 Dx64 mm silicon-containing hollow three-dimensional crimped graphene polyester fibers, 7 Dx64 mm silicon-containing hollow three-dimensional crimped graphene polyester fibers and a hot melt to obtain a first mixture;
mixing the silicon-containing graphene polyester fibers with the diameter of 0.9 Dx 51mm, the silicon-containing graphene polyester fibers with the diameter of 1.2 Dx 51mm and the diameter of 1.5 Dx 64mm with a thermal fuse to obtain a second mixture;
(2) forming a net:
combing and hot-melt bonding reinforcement are carried out on the first mixture under a dry condition by adopting a dry-method web forming mode, wherein the conveying speed of the first mixture in the combing step is 5m/s, and the web forming speed is 12 m/s; the reinforcing temperature in the hot melting bonding reinforcing step is 165 ℃, the output speed of the fiber web is 13m/s, and in the prepared first fiber web, the silicon-containing hollow three-dimensional crimped graphene polyester fibers and the silicon-containing graphene polyester fibers are arranged in a disordered manner;
a dry-method web forming mode is adopted, a part of second mixture (accounting for 40% of the second mixture prepared in the step (1)) is carded and hot-melt bonded and reinforced under a dry condition, the conveying speed of the second mixture in the carding step is 8m/s, and the web forming speed is 11 m/s; the reinforcing temperature in the hot melting bonding reinforcing step is 155 ℃, the output speed of the fiber web is 10m/s, and in the prepared second fiber web, the silicon-containing hollow three-dimensional crimped graphene polyester fibers and the silicon-containing graphene polyester fibers are arranged in a disordered manner;
combing and hot-melt bonding reinforcement are carried out on the other part of the second mixture (accounting for 60 percent of the second mixture prepared in the step (1)) under a dry-state condition by adopting a dry-method web forming mode, wherein the conveying speed of the second mixture in the combing step is 6m/s, and the web forming speed is 13 m/s; the reinforcing temperature in the hot melting bonding reinforcing step is 160 ℃, the output speed of the fiber web is 12m/s, and in the prepared third fiber web, the silicon-containing hollow three-dimensional crimped graphene polyester fibers and the silicon-containing graphene polyester fibers are arranged in a disordered manner;
(3) fiber reinforcement:
respectively paving the second fiber web and the third fiber web on the upper side and the lower side of the first fiber web, and then carrying out glue spraying reinforcement treatment to obtain 120g/m2A grammage flocculus;
wherein, the mass percentages of the silicon-containing graphene polyester fibers with the specifications of 3 Dx64 mm, 6 Dx64 mm and 7 Dx64 mm in the step (1) are respectively 18%, 20% and 20% by taking the total mass of the first mixture and the second mixture as 100%; the silicon-containing graphene polyester fibers with the specification of 0.9 Dx51 mm, 1.2 Dx51 mm and 1.5 Dx51 mm in the step (1) are 6%, 12% and 12% in percentage by mass; the mass percentage of the total mass of the thermal fuses in the first mixture and the second mixture is 8%; the mass percentage of the glue used for spraying glue is 4%.
FIG. 1 is an optical microscope photograph of the surface web of the batt of example 1 of the present invention, as can be seen, wherein the fibers are in a random arrangement.
Example 2
This example provides a flocculus with bacteriostatic, warm-keeping and far-infrared functions, which is prepared by the following method:
(1) selecting fiber raw materials and mixing:
mixing 3 Dx64 mm silicon-containing hollow three-dimensional crimped graphene polyester fibers, 6 Dx64 mm silicon-containing hollow three-dimensional crimped graphene polyester fibers, 7 Dx64 mm silicon-containing hollow three-dimensional crimped graphene polyester fibers and a hot melt to obtain a first mixture;
mixing the silicon-containing graphene polyester fibers with the diameter of 0.9 Dx 51mm, the silicon-containing graphene polyester fibers with the diameter of 1.2 Dx 51mm and the diameter of 1.5 Dx 64mm with a thermal fuse to obtain a second mixture;
(2) forming a net:
combing and hot-melt bonding reinforcement are carried out on the first mixture under a dry condition by adopting a dry-method web forming mode, wherein the conveying speed of the first mixture in the combing step is 7m/s, and the web forming speed is 15 m/s; the reinforcing temperature in the hot melting bonding reinforcing step is 170 ℃, the output speed of the fiber web is 11m/s, and in the prepared first fiber web, the silicon-containing hollow three-dimensional crimped graphene polyester fibers and the silicon-containing graphene polyester fibers are arranged in a disordered manner;
a dry-method web forming mode is adopted, a part of second mixture (accounting for 50% of the second mixture prepared in the step (1)) is carded and hot-melt bonded and reinforced under a dry condition, the conveying speed of the second mixture in the carding step is 8m/s, and the web forming speed is 12 m/s; the reinforcing temperature in the hot melting bonding reinforcing step is 150 ℃, the output speed of the fiber web is 10m/s, and in the prepared second fiber web, the silicon-containing hollow three-dimensional crimped graphene polyester fibers and the silicon-containing graphene polyester fibers are arranged in a disordered manner;
combing and hot-melt bonding reinforcement are carried out on the other part of the second mixture (accounting for 50 percent of the second mixture prepared in the step (1)) under a dry-state condition by adopting a dry-method web forming mode, wherein the conveying speed of the second mixture in the combing step is 7m/s, and the web forming speed is 10 m/s; the reinforcing temperature in the hot melting bonding reinforcing step is 160 ℃, the output speed of the fiber web is 13m/s, and in the prepared third fiber web, the silicon-containing hollow three-dimensional crimped graphene polyester fibers and the silicon-containing graphene polyester fibers are arranged in a disordered manner;
(3) fiber reinforcement:
respectively paving the second fiber web and the third fiber web on the upper side and the lower side of the first fiber web, and then carrying out glue spraying reinforcement treatment to obtain 120g/m2A grammage flocculus;
wherein, the mass percentages of the silicon-containing graphene polyester fibers with the specifications of 3 Dx64 mm, 6 Dx64 mm and 7 Dx64 mm in the step (1) are respectively 15%, 24% and 24% by taking the total mass of the first mixture and the second mixture as 100%; the silicon-containing graphene polyester fibers with the specification of 0.9 Dx51 mm, 1.2 Dx51 mm and 1.5 Dx51 mm in the step (1) are 7%, 9% and 9% in percentage by mass; the mass percentage of the total mass of the thermal fuses in the first mixture and the second mixture is 8%; the mass percentage of the glue used for spraying glue is 4%.
Example 3
This example provides a flocculus with bacteriostatic, warm-keeping and far-infrared functions, which is prepared by the following method:
(1) selecting fiber raw materials and mixing:
mixing 3 Dx64 mm silicon-containing hollow three-dimensional crimped graphene polyester fibers, 6 Dx64 mm silicon-containing hollow three-dimensional crimped graphene polyester fibers, 7 Dx64 mm silicon-containing hollow three-dimensional crimped graphene polyester fibers and a hot melt to obtain a first mixture;
mixing the silicon-containing graphene polyester fibers with the diameter of 0.9 Dx 51mm, the silicon-containing graphene polyester fibers with the diameter of 1.2 Dx 51mm and the diameter of 1.5 Dx 64mm with a thermal fuse to obtain a second mixture;
(2) forming a net:
combing and hot-melt bonding reinforcement are carried out on the first mixture under a dry condition by adopting a dry-method web forming mode, wherein the conveying speed of the first mixture in the combing step is 8m/s, and the web forming speed is 15 m/s; the reinforcing temperature in the hot melting bonding reinforcing step is 160 ℃, the output speed of the fiber web is 13m/s, and in the prepared first fiber web, the silicon-containing hollow three-dimensional crimped graphene polyester fibers and the silicon-containing graphene polyester fibers are arranged in a disordered manner;
combing and hot-melt bonding and reinforcing a part of second mixture (accounting for 65% of the second mixture prepared in the step (1)) under a dry-state condition by adopting a dry-method web forming mode, wherein the conveying speed of the second mixture in the combing step is 5m/s, and the web forming speed is 10 m/s; the reinforcing temperature in the hot melting bonding reinforcing step is 150 ℃, the output speed of the fiber web is 11m/s, and in the prepared second fiber web, the silicon-containing hollow three-dimensional crimped graphene polyester fibers and the silicon-containing graphene polyester fibers are arranged in a disordered manner;
combing and hot-melt bonding reinforcement are carried out on the other part of the second mixture (accounting for 35% of the second mixture prepared in the step (1)) under a dry-state condition by adopting a dry-method web forming mode, wherein the conveying speed of the second mixture in the combing step is 7m/s, and the web forming speed is 15 m/s; the reinforcing temperature in the hot melting bonding reinforcing step is 160 ℃, the output speed of the fiber web is 10m/s, and in the prepared third fiber web, the silicon-containing hollow three-dimensional crimped graphene polyester fibers and the silicon-containing graphene polyester fibers are arranged in a disordered manner;
(3) fiber reinforcement:
respectively spreading the second fiber web and the third fiber web on the upper side and the lower side of the first fiber web, and sprayingGlue is solidified to obtain 130g/m2A grammage flocculus;
wherein, the mass percentages of the silicon-containing graphene polyester fibers with the specifications of 3 Dx64 mm, 6 Dx64 mm and 7 Dx64 mm in the step (1) are respectively 15%, 28% and 18% by taking the total mass of the first mixture and the second mixture as 100%; the silicon-containing graphene polyester fibers with the specification of 0.9 Dx51 mm, 1.2 Dx51 mm and 1.5 Dx51 mm in the step (1) are 6%, 12% and 9% in percentage by mass; the total mass of the thermal fuses in the first mixture and the second mixture accounts for 8 percent by mass; the mass percentage of the glue used for spraying glue is 4%.
Example 4
The same as in example 1 was repeated except for the following:
the mass percentages of the silicon-containing graphene polyester fibers with the specifications of 3 Dx64 mm, 6 Dx64 mm and 7 Dx64 mm in the step (1) are respectively 15%, 15% and 25% by taking the total mass of the first mixture and the second mixture as 100%; the silicon-containing graphene polyester fibers with the specification of 0.9 Dx51 mm, 1.2 Dx51 mm and 1.5 Dx51 mm in the step (1) are 7%, 9% and 15% in percentage by mass; the mass percentage of the total mass of the thermal fuses in the first mixture and the second mixture is 9%; the mass percentage of the glue used for spraying the glue is 5 percent.
Example 5
The same as in example 1 was repeated except for the following:
the mass percentages of the silicon-containing graphene polyester fibers with the specifications of 3 Dx64 mm, 6 Dx64 mm and 7 Dx64 mm in the step (1) are respectively 20%, 20% and 25% by taking the total mass of the first mixture and the second mixture as 100%; the silicon-containing graphene polyester fibers with the specification of 0.9 Dx51 mm, 1.2 Dx51 mm and 1.5 Dx51 mm in the step (1) are 5%, 9% and 9% in percentage by mass; the mass percentage of the total mass of the thermal fuses in the first mixture and the second mixture is 8%; the mass percentage of the glue used for spraying glue is 4%.
Example 6
The same procedure as in example 1 was followed, except that the following differences were present in the preparation:
in the process of preparing the first fiber web, the second fiber web and the third fiber web, the conveying speed of the mixed raw materials in the carding step is 7m/s, and the web forming speed is 15 m/s; the fiber consolidation temperature in the hot melt bonding consolidation step was 170 ℃ and the output speed of the web was 13 m/s.
Comparative example 1
The preparation method and conditions were the same as in example 1, except that all of the used fibers were replaced with silicon-containing graphene polyester fibers of 1.5D × 51 mm.
Comparative example 2
The preparation method and conditions were the same as in example 1, except that all the used fibers were replaced with 3D × 64mm silicon-containing hollow three-dimensional crimped graphene polyester fibers.
The antibacterial property, far infrared property, compression modulus of elasticity, heat retention rate, clo value, thermal resistance, air permeability and the like of the batts of examples 1 to 8 of the present invention and comparative examples 1 to 2 were measured, and the results are shown in table 1.
TABLE 1
As can be seen from Table 1, the flocculus obtained in the embodiments 1-6 of the invention has good antibacterial property, heat retention property, rebound resilience, air permeability and far infrared property. When the silicon-containing hollow three-dimensional crimped graphene polyester fibers with different deniers and length specifications and the silicon-containing graphene polyester fibers with different deniers and length specifications are matched and used according to proper content, the comprehensive performance can be improved in a synergistic manner. While comparative examples 1 and 2 use a single type of fiber of a single gauge, the benefits claimed by the present invention are not achieved.
The applicant states that the present invention is illustrated in detail by the above examples, but the present invention is not limited to the above detailed methods, i.e. it is not meant that the present invention must rely on the above detailed methods for its implementation. It should be understood by those skilled in the art that any modification of the present invention, equivalent substitutions of the raw materials of the product of the present invention, addition of auxiliary components, selection of specific modes, etc., are within the scope and disclosure of the present invention.
Claims (19)
1. A flocculus which is characterized by comprising a flocculus middle framework layer as a main body and an upper surface layer and a lower surface layer which are respectively positioned on the upper surface and the lower surface of the flocculus middle framework layer;
the middle skeleton layer of the flocculus is composed of silicon-containing hollow three-dimensional crimped graphene polyester fibers with the fineness of 3D, 6D and 7D, and the upper surface layer and the lower surface layer are composed of silicon-containing graphene polyester fibers with the fineness of 0.9D, 1.2D and 1.5D and are of non-hollow structures;
the thicknesses of the upper surface layer and the lower surface layer are independently 7mm-10mm, and the thickness of the middle skeleton layer of the flocculus is 20mm-25 mm;
the mass ratio of the silicon-containing graphene polyester fibers with the fineness of 3D, 6D, 7D, 0.9D, 1.2D and 1.5D is (15-25): 15-30): 18-25): 4-7): 9-15.
2. The batt of claim 1 wherein the silicon-containing graphene polyester fibers in the middle skeleton layer of the batt are each 64mm in length.
3. The batt of claim 1, wherein the silicon-containing graphene polyester fibers in both the upper and lower surface layers are 51mm in length.
4. The batt of claim 1 having a grammage of 100g/m2～160g/m2。
5. The method of making a batt of any of claims 1-4, wherein the method of making the batt comprises:
(1) selecting and mixing fiber raw materials
Mixing silicon-containing graphene polyester fibers with the fineness of 3D, 6D and 7D with a thermal fuse to obtain a first mixture;
mixing the silicon-containing graphene polyester fibers with the fineness of 0.9D, 1.2D and 1.5D with the thermal fuse to obtain a second mixture;
(2) into a net
Carding and hot-melt bonding reinforcement are carried out on the first mixture to obtain a first fiber web;
taking a part of the second mixture for carding, hot-melting bonding and reinforcing to obtain a second fiber web;
taking the other part of the second mixture for carding, hot-melting bonding and reinforcing to obtain a third fiber web;
(3) fiber reinforcement
Respectively paving the second fiber web and the third fiber web on the upper side and the lower side of the first fiber web, and then carrying out glue spraying reinforcement treatment to obtain flocculus;
wherein, the silicon-containing graphene polyester fibers with the titer of 3D, 6D and 7D in the step (1) are as follows: the titer of each of the silicon-containing hollow three-dimensional crimped graphene polyester fibers is 3D, 6D and 7D;
by taking the total mass of the first mixture and the second mixture as 100%, the mass percentage of the silicon-containing graphene polyester fiber with the fineness of 3D is 15% -25%, the mass percentage of the silicon-containing graphene polyester fiber with the fineness of 6D is 15% -30%, the mass percentage of the silicon-containing graphene polyester fiber with the fineness of 7D is 18% -25%, the mass percentage of the silicon-containing graphene polyester fiber with the fineness of 0.9D is 4% -7%, the mass percentage of the silicon-containing graphene polyester fiber with the fineness of 1.2D is 9% -15%, and the mass percentage of the silicon-containing graphene polyester fiber with the fineness of 1.5D is 9% -15%.
6. The method according to claim 5, wherein the preparation method of the silicon-containing graphene polyester fiber comprises the following steps: the preparation method comprises the steps of firstly preparing graphene polyester master batches by taking graphene powder and polyester as raw materials, and then preparing the silicon-containing graphene polyester fiber by spinning and post-processing the graphene polyester master batches and polyester chips.
7. The method according to claim 6, wherein in the preparation process of the silicon-containing graphene polyester fiber, the graphene polyester masterbatch accounts for 5-25% of the silicon-containing graphene polyester fiber by mass, and the graphene accounts for 5-15% of the graphene polyester masterbatch by mass.
8. The method according to claim 5, wherein the lengths of the silicon-containing graphene polyester fibers with the titer of 3D, 6D and 7D in the step (1) are 64 mm.
9. The method according to claim 5, wherein the lengths of the silicon-containing graphene polyester fibers with the titer of 0.9D, 1.2D and 1.5D in the step (1) are 51 mm.
10. The method according to claim 8, wherein the total mass of the thermal fuses in the first and second mixes is 8-12% by mass.
11. The method of claim 5 wherein the second compound used in step (2) to prepare the second web comprises 30% to 50% of the total mass of the second compound formulated in step (1).
12. The method of claim 5 wherein in the carding step of step (2) producing the first web, the first compound is delivered at a speed of 5m/s to 8m/s and the web is delivered at a speed of 10m/s to 15 m/s.
13. The method of claim 5 wherein in the carding step of step (2) producing the second web, the second mixture is conveyed at a speed of 5m/s to 8m/s and the web is conveyed at a speed of 10m/s to 15 m/s.
14. The method of claim 5 wherein in the carding step of step (2) producing the third web, the third mixture is conveyed at a speed of 5m/s to 8m/s and the web is conveyed at a speed of 10m/s to 15 m/s.
15. The method of claim 5 wherein in the step of (2) providing the first web, the consolidation temperature is from 150 ℃ to 170 ℃ and the output speed of the web is from 10m/s to 13 m/s.
16. The method of claim 5 wherein in the step of (2) providing the second web, the consolidation temperature is from 150 ℃ to 170 ℃ and the output speed of the web is from 10m/s to 13 m/s.
17. The method of claim 5 wherein in the step of (2) providing the third web, the consolidation temperature is from 150 ℃ to 170 ℃ and the output speed of the web is from 10m/s to 13 m/s.
18. The method according to claim 5, wherein in the step (3), during the glue spraying reinforcement treatment, the glue is sprayed by 4-8% by mass based on 100% of the total mass of the first mixed material and the second mixed material.
19. The method of claim 5, wherein the batt is prepared by a method comprising the steps of:
(1) selecting and mixing fiber raw materials
Mixing silicon-containing graphene polyester fibers with the fineness of 3D, the fineness of 6D and the fineness of 7D and the length of 64mm with a hot melt silk to obtain a first mixture;
mixing silicon-containing graphene polyester fibers with the fineness of 0.9D, the fineness of 1.2D and the fineness of 1.5D and the length of 51mm with a hot melt wire to obtain a second mixture;
(2) into a net
Carding and hot-melt bonding reinforcement are carried out on the first mixture to obtain a first fiber web;
taking a part of the second mixture for carding, hot-melting bonding and reinforcing to obtain a second fiber web;
taking the other part of the second mixture for carding, hot-melting bonding and reinforcing to obtain a third fiber web;
in the process of preparing the first fiber web, the second fiber web and the third fiber web, the conveying speed of the mixture in the carding step is independently 5m/s-8m/s, and the web forming speed is 10m/s-15 m/s; the reinforcing temperature of the hot melt bonding reinforcing step is independently 150-170 ℃, and the output speed of the fiber web is independently 10-13 m/s;
(3) fiber reinforcement
Respectively paving the second fiber web and the third fiber web on the upper side and the lower side of the first fiber web, and then carrying out glue spraying reinforcement treatment to obtain flocculus;
the titer of the step (1) is respectively 3D, 6D and 7D, and the mass percentages of the silicon-containing graphene polyester fibers with the lengths of 64mm are respectively 15% -25%, 15% -30% and 18% -25%, based on the total mass of the first mixture and the second mixture being 100%; respectively setting the titer of 0.9D, 1.2D and 1.5D, and the mass percentages of the silicon-containing graphene polyester fibers with the lengths of 51mm to be 4-7%, 9-15% and 9-15%; the mass percentage of the total mass of the thermal fuses in the first mixture and the second mixture is 8-12%; the mass percentage of the glue used for spraying the glue is 4-8%.
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| CN109371571A (en) * | 2018-11-30 | 2019-02-22 | 周宏辉 | A kind of core class filler and its manufacturing method |
| CN111005161A (en) * | 2019-12-24 | 2020-04-14 | 广州市中诚新型材料科技有限公司 | Graphene multifunctional superfine fiber multi-layer non-woven fabric and preparation method thereof |
| CN111041710A (en) * | 2019-12-24 | 2020-04-21 | 广州市中诚新型材料科技有限公司 | Graphene multifunctional superfine fiber multi-layer non-woven fabric and preparation method thereof |
| CN116005351B (en) * | 2023-01-18 | 2025-03-11 | 浙江大学绍兴研究院 | Manufacturing method of single-layer graphene oxide functional thermal wadding |
| CN117071179B (en) * | 2023-08-25 | 2024-10-22 | 深圳减字科技有限公司 | Thermal insulation flocculus and preparation method and application thereof |
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