CN113927962B - Artificial leather with high heat preservation performance and manufacturing method thereof - Google Patents

Artificial leather with high heat preservation performance and manufacturing method thereof Download PDF

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Publication number
CN113927962B
CN113927962B CN202111216006.9A CN202111216006A CN113927962B CN 113927962 B CN113927962 B CN 113927962B CN 202111216006 A CN202111216006 A CN 202111216006A CN 113927962 B CN113927962 B CN 113927962B
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layer
moisture
conducting
composite
heat preservation
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CN113927962A (en
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周伟强
金利强
王新洪
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Dongyang Jinmao Plastic Co ltd
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Dongyang Jinmao Plastic Co ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/266—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B32B37/1284—Application of adhesive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/08—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer the fibres or filaments of a layer being of different substances, e.g. conjugate fibres, mixture of different fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/02—Physical, chemical or physicochemical properties
    • B32B7/027—Thermal properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/02—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising animal or vegetable substances, e.g. cork, bamboo, starch
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B32B37/1207—Heat-activated adhesive
    • B32B2037/1215—Hot-melt adhesive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0253—Polyolefin fibres

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  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Thermal Sciences (AREA)
  • Laminated Bodies (AREA)

Abstract

The invention relates to the technical field of artificial leather, in particular to artificial leather with high heat preservation performance, which is sequentially provided with a leather surface layer, a heat preservation layer and a skin-friendly layer from outside to inside, wherein a moisture-guiding layer is arranged between the heat preservation layer and the skin-friendly layer, and one side of the heat preservation layer, which is close to the moisture-guiding layer, is inwards concave to form a groove area; the leather surface layer is also provided with a plurality of flocking holes which sequentially penetrate through the leather surface layer and the heat preservation layer, the moisture-conducting layer is planted with cotton velvet, and the cotton velvet is filled in the flocking holes. The invention has the heat preservation effect and certain moisture-conducting effect.

Description

Artificial leather with high heat preservation performance and manufacturing method thereof
[ field of technology ]
The invention relates to the technical field of artificial leather, in particular to artificial leather with high heat preservation performance and a manufacturing method thereof.
[ background Art ]
Leather products are favored by the vast majority of users for excellent performance, and with the development of technology, artificial synthetic leather (i.e., artificial leather) is beginning to replace the conventional natural leather.
In order to make leather have good heat insulation, a heat insulation layer is generally included in the heat insulation artificial leather to perform heat insulation; however, although the heat insulation performance of leather can be improved by directly combining a heat insulation layer, when the artificial leather is used as a garment, if a large amount of sweat is generated by a human body, sweat cannot be discharged out of the artificial leather due to the existence of the heat insulation layer, so that a wearer is difficult to feel comfortable, and therefore improvement is still needed.
[ invention ]
The invention aims to solve the technical problem of overcoming the defects of the prior art and providing the artificial leather with high heat preservation performance.
The technical problems are solved, and the invention adopts the following technical scheme:
the artificial leather with high heat preservation performance is sequentially provided with a leather surface layer, a heat preservation layer and a skin-friendly layer from outside to inside, a moisture-conducting layer is arranged between the heat preservation layer and the skin-friendly layer, and one side of the heat preservation layer, which is close to the moisture-conducting layer, is inwards concave to form a groove area; the leather surface layer is also provided with a plurality of flocking holes which sequentially penetrate through the leather surface layer and the heat preservation layer, the moisture-conducting layer is planted with cotton velvet, and the cotton velvet is filled in the flocking holes.
The adoption of the scheme has the advantages that:
firstly, in this scheme, thereby through being provided with the heat preservation so that the synthetic leather possesses thermal insulation performance.
Secondly, in this scheme, still be provided with the moisture transfer layer in the heat preservation inboard, simultaneously still be equipped with a plurality of flocking holes that run through leather surface course and heat preservation in proper order on the leather surface course to plant on the moisture transfer layer and have the cotton velvet that fills in the flocking hole, because cotton velvet possesses good water absorption moisture permeability, so when the human body sweats by a large amount, sweat can be absorbed by the moisture transfer layer to transmit to cotton velvet by the moisture transfer layer, outwards derive by cotton velvet at last, so in order to realize the moisture transfer effect, from this, so set up can guarantee the heat preservation effect, can possess the effect of moisture transfer and sweat release again.
It is worth to say that, because the cotton velvet is filled in the flocking hole, so the cotton velvet can play a certain heat insulation effect in the flocking hole, the heat is prevented from passing through the flocking hole rapidly and largely, and the heat insulation effect is indirectly improved.
In addition, in the scheme, the cotton velvet is directly planted on the moisture-guiding layer, so that part of sweat absorbed by the moisture-guiding layer can be directly transferred to the cotton velvet and guided out by the cotton velvet, and the moisture-guiding effect is improved.
Finally, in this scheme, heat preservation is close to wet layer one side indent formation recess area, so when manufacturing is accomplished, wet layer direct cover in recess area notch department for possess a cavity intermediate layer (i.e. recess area) between wet layer and the heat preservation, so, the cavity intermediate layer alright play a buffering sweat effect, wet layer surface evaporated sweat can get into this cavity intermediate layer and flow, after partial sweat flows to the cotton velvet department and is absorbed by the cotton velvet, can outwards derive by the cotton velvet, in other words, the existence of cavity intermediate layer can make wet layer surface have sufficient sweat evaporation area, in order to improve wet layer's the efficiency of arranging moisture.
Preferably, the thermal insulation layer is an aerogel layer.
Preferably, the heat-insulating layer and the leather surface layer are compounded by a hot-pressing mode or a bonding mode.
Preferably, the moisture-conducting layer is a unidirectional moisture-conducting fabric or a cotton fabric.
Preferably, a moisture-conducting antibacterial layer is arranged between the skin-friendly layer and the moisture-conducting layer.
Preferably, the moisture-conducting antibacterial layer is formed by interweaving warp yarns and weft yarns, wherein the warp yarns are antibacterial yarns, and the weft yarns are cotton yarns.
Preferably, the antibacterial yarn comprises polypropylene fiber yarns doped with shell powder-nano silver composite materials.
The invention also provides a manufacturing method of the artificial leather with high heat preservation performance, which comprises the following steps:
step one, taking a skin-friendly fabric as a skin-friendly layer, taking a moisture-conducting fabric as a moisture-conducting layer, and compositing the skin-friendly layer and the moisture-conducting layer together in a hot-pressing mode to form a first composite layer for standby;
taking superfine fiber fabric or nylon fabric as a leather surface layer, and taking an aerogel pad as an insulation layer, wherein one side surface of the insulation layer is concaved inwards to form a groove area;
step three, compounding the heat-insulating layer and the leather surface layer together in a hot pressing or sticking mode to form a second compound layer for standby, wherein a groove area of the heat-insulating layer is positioned at one side far away from the leather surface layer;
step four, puncturing: forming flocking holes penetrating through the second composite layer by puncturing the second composite layer;
step five, film coating: a layer of water-soluble film is paved in the groove area of the second composite layer, wherein a plurality of through holes staggered with the flocking holes are distributed on the water-soluble film;
step six, gluing: coating hot melt adhesive on the side surface of the side where the groove area of the second composite layer is located, and injecting the hot melt adhesive into the through hole of the water-soluble film;
step seven, compounding: the first composite layer in the first step is covered on the second composite layer, wherein a moisture-conducting layer in the first composite layer is attached to one surface of a groove area in the second composite layer, and then the first composite layer and the second composite layer are compounded on a compounding machine, so that the first composite layer and the second composite layer are adhered through the hot melt adhesive to obtain a composite germ layer;
step eight, removing the film: washing the composite germ layer obtained in the step seven with water, enabling the water to enter a groove area to dissolve a water-soluble film, and then drying;
step nine, flocking: and taking cotton velvet, implanting the cotton velvet into the moisture-conducting layer through the flocking holes, filling the cotton velvet into the flocking holes, and exposing the cotton velvet part outside the leather surface layer to finish the manufacture of the artificial leather.
Preferably, in the first step, the method further comprises preparing a moisture-conducting antibacterial layer, and compositing the moisture-conducting antibacterial layer between the skin-friendly layer and the moisture-conducting layer.
Preferably, the preparation method of the moisture-conducting antibacterial layer comprises the following steps:
s1, taking cotton yarn as weft yarn, polypropylene fiber yarn as warp yarn, and treating the warp yarn, wherein the treatment process is as follows:
s11, preparing shell powder, nano silver powder and a dispersing agent;
s12, adding nano silver powder and a dispersing agent into deionized water and carrying out wet grinding; then adding shell powder and a dispersing agent into the deionized water, stirring, and then carrying out wet grinding to finally obtain slurry;
s13, immersing the polypropylene fiber yarn in the slurry for a period of time, and taking out and drying to finish the treatment of warp yarns;
s2, weaving the treated warps and wefts to form a fabric serving as a moisture-conducting antibacterial layer
Additional advantages and effects of the invention are set forth in the detailed description and drawings.
[ description of the drawings ]
The invention is further described with reference to the accompanying drawings:
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic illustration of the preparation flow of example two.
[ detailed description ] of the invention
The technical solutions of the embodiments of the present invention will be explained and illustrated below with reference to the drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention, and not all embodiments. Based on the examples in the implementation manner, other examples obtained by a person skilled in the art without making creative efforts fall within the protection scope of the present invention.
In the following description, directional or positional relationships such as the terms "inner", "outer", "upper", "lower", "left", "right", etc., are presented for convenience in describing the embodiments and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention.
Embodiment one:
as shown in fig. 1, this embodiment provides an artificial leather with high heat insulation performance, which is sequentially provided with a leather surface layer 1, a heat insulation layer 2 and a skin-friendly layer 3 from outside to inside, wherein the inside and the outside are distinguished in a wearing state of a human body, i.e. the side close to the human body is the inside, and the outside is the outside.
In order to provide a good heat insulation effect, the heat insulation layer 2 is preferably an aerogel layer in this embodiment, but may be a heat insulation layer 2 made of other heat insulation materials, and is not particularly limited herein.
As for the skin-friendly layer 3, it is mainly composed of skin-friendly materials, so that the human body has good comfort, such as plush fabric, pure cotton fabric and the like, and not only can the good skin-friendly performance be ensured, but also certain warm keeping and moisture conducting performances can be achieved.
The leather layer 1 may be a superfine fiber fabric or a nylon fabric, which has good wear resistance, so that the leather layer may be preferably used, and of course, may be other fabrics, and is not particularly limited herein, and the heat-insulating layer 2 and the leather layer 1 are compounded by hot pressing or bonding.
The moisture-conducting layer 4 is arranged between the heat-insulating layer 2 and the skin-friendly layer 3, and the moisture-conducting layer 4 is mainly made of a moisture-conducting material and is used for playing a role in moisture conduction, namely absorbing the sweat, for example, the moisture-conducting layer 4 can be made of unidirectional moisture-conducting fabric, and of course, cotton fabric and the like can also be used.
It is worth mentioning that the unidirectional moisture-conducting fabric refers to a fabric with unidirectional moisture-conducting function, generally comprising an inner layer and an outer layer, wherein the inner layer is close to one side of the body, the inner layer absorbs sweat and rapidly discharges sweat to the outer layer, and sweat is rapidly evaporated from the outer layer. The unidirectional moisture-conducting fabric is disclosed in a large number of documents in the prior art, so that excessive details are not needed here, and the unidirectional moisture-conducting fabric can be used for rapidly conducting sweat.
A groove area 21 is formed on one side of the heat preservation layer 2 close to the moisture-conducting layer 4 in a concave manner, namely, the groove area 21 is formed on the inner side of the heat preservation layer 2; the leather surface layer 1 is also provided with a plurality of flocking holes 22 which sequentially penetrate through the leather surface layer 1 and the heat preservation layer 2, the moisture-guiding layer 4 is planted with cotton velvet 6, and the cotton velvet 6 is filled in the flocking holes 22.
In this scheme, still be provided with the moisture transfer layer 4 in the heat preservation 2 inboard, simultaneously still be equipped with a plurality of flocking holes 22 that run through leather surface course 1 and heat preservation 2 in proper order on leather surface course 1 to plant on the moisture transfer layer 4 and fill in flocking hole 22 cotton velvet 6, because cotton velvet 6 possesses good water absorption moisture permeability, so when the human sweat is in a large number, sweat can be absorbed by moisture transfer layer 4 to give cotton velvet 6 by moisture transfer layer 4, outwards derive by cotton velvet 6 at last, so in order to realize the moisture transfer effect, from this, can guarantee the heat preservation effect, can possess the effect of moisture transfer sweat again in this setting.
It should be noted that, since lint 6 is filled in flocking hole 22, lint 6 can have a certain heat insulation effect in flocking hole 22, i.e. lint 6 is blocked in flocking hole 22, so that heat is prevented from passing through flocking hole 22 rapidly and largely, and thus, the heat insulation effect is indirectly improved.
In addition, in the scheme, the cotton velvet 6 is directly planted on the moisture-guiding layer 4, so that part of sweat absorbed by the moisture-guiding layer 4 can be directly transferred to the cotton velvet 6 and guided out by the cotton velvet 6, and the moisture-guiding effect is improved.
Finally, in this scheme, heat preservation 2 is close to wet layer 4 one side indent formation recess region 21, so when making the completion, wet layer 4 directly covers in recess region 21 notch department for wet layer 4 and heat preservation 2 between possess a cavity intermediate layer (i.e. recess region 21), so, the cavity intermediate layer alright play the effect of a buffering sweat, wet layer 4 surface evaporation's sweat can get into this cavity intermediate layer and flow, after partial sweat flows to cotton velvet 6 department and is absorbed by cotton velvet 6, can outwards derive by cotton velvet 6, in other words, the existence of cavity intermediate layer can make wet layer 4 surface have sufficient sweat evaporation area, in order to improve wet layer 4's drainage efficiency.
It is assumed that there is no recessed area 21, at which time the moisture-conducting layer 4 is in direct contact with the insulating layer 2, so that there is no space on the outer surface of the moisture-conducting layer 4 for sweat to evaporate, thereby making the moisture-conducting effect very slow.
In order to make the present embodiment have an antibacterial effect, in this embodiment, a moisture-conducting antibacterial layer 5 is disposed between the skin-friendly layer 3 and the moisture-conducting layer 4, specifically:
the moisture-conducting antibacterial layer 5 is of a fabric structure formed by interweaving warp yarns and weft yarns, the warp yarns are antibacterial yarns so as to ensure that the moisture-conducting antibacterial layer 5 has an antibacterial effect, the weft yarns are cotton yarns, and the cotton yarns have good moisture absorption and moisture conduction performances, so that the moisture-conducting antibacterial layer 5 can be ensured to have moisture conduction performances.
As for the antibacterial yarn, the antibacterial yarn comprises a polypropylene fiber wire which is doped with shell powder-nano silver composite material, and the polypropylene fiber wire has high elasticity and high strength, so that the strength and toughness of the antibacterial yarn can be ensured. The shell powder-nano silver composite material is compounded on the polypropylene fiber line, and it is worth noting that the main component of the shell powder is calcium carbonate, the nano silver has good antibacterial and bacteriostatic effects, after the shell powder is compounded, the nano silver powder is loaded on the surface of a microporous structure of the calcium carbonate and the inside of the microporous structure, and as sweat of a human body is generally acidic, the calcium carbonate reacts with the sweat to dissolve so as to release the nano silver loaded therein for antibacterial and bacteriostatic effects, so that the nano silver is slowly released, and the service life of the nano silver is prolonged.
Example two
Referring to fig. 1 and 2, the embodiment provides a method for manufacturing artificial leather with high heat insulation performance, which includes the following steps:
step one, taking a skin-friendly fabric as a skin-friendly layer 3, such as a plush fabric and a pure cotton fabric; the moisture-conducting fabric is taken as the moisture-conducting layer 4, such as unidirectional moisture-conducting fabric and cotton fabric, in this embodiment, the unidirectional moisture-conducting fabric is taken as an example for illustration, and the skin-friendly layer 3 and the moisture-conducting layer 4 are compounded together in a hot-pressing mode to form a first composite layer for standby.
And secondly, taking superfine fiber fabric or nylon fabric as a leather surface layer 1 and taking an aerogel pad as an insulation layer 2, wherein one side surface (inner side surface) of the insulation layer 2 is concaved inwards to form a groove area 21.
And thirdly, compounding the heat preservation layer 2 and the leather surface layer 1 together in a hot pressing or sticking mode to form a second composite layer for standby, wherein the groove area 21 of the heat preservation layer 2 is positioned at one side far away from the leather surface layer 1, namely the groove area 21 is positioned at the inner side.
Step four, puncturing: punching a hole in the second composite layer to form a flocking hole 22 through the second composite layer;
step five, film coating: a layer of water-soluble film 8 is paved in the groove area 21 of the second composite layer, wherein a plurality of through holes 81 staggered with the flocking holes 22 are distributed on the water-soluble film 8, namely, the through holes 81 are not overlapped with the flocking holes 22 in vertical projection. After the water-soluble film 8 is laid in the groove area 21, the inner side surface of the water-soluble film 8 is flush with the inner side surface of the heat preservation layer 2.
Step six, gluing: and (3) coating the hot melt adhesive 7 on the side surface of the second composite layer, where the groove area 21 is located, namely coating the hot melt adhesive 7 on the inner side surface of the heat preservation layer 2 except for the position of the groove area 21, and injecting the hot melt adhesive 7 into the through hole 81 of the water-soluble film 8.
Step seven, compounding: and (3) taking the first composite layer in the first step, and covering the first composite layer on the second composite layer, wherein the moisture-conducting layer 4 in the first composite layer is attached to one surface of the groove area 21 in the second composite layer, and then compounding the first composite layer and the second composite layer on a compounding machine, so that the first composite layer and the second composite layer are adhered through the hot melt adhesive 7, and a composite germ layer is obtained.
In this step, after the hot melt adhesive 7 in the through hole 81 is cured and adhered, continuous protruding points are formed in the groove area 21, so that the heat insulation layer 2 and the moisture-guiding layer 4 are adhered in the groove area 21, meanwhile, the protruding points can play a certain supporting role, the heat insulation layer 2 and the moisture-guiding layer 4 are supported and spread, and a hollow interlayer is formed at the groove area 21, and the effect of the hollow interlayer is described in detail in the first embodiment, and will not be repeated here.
Meanwhile, the hot melt adhesive 7 outside the groove area 21 adheres the heat insulating layer 2 and the moisture conducting layer 4 in the area outside the groove area 21.
Step eight, removing the film: washing the composite germ layer obtained in the step seven with water, enabling the water to enter a groove area 21 to dissolve a water-soluble film 8, and then drying; it should be noted that the purpose of the water washing is to allow water to pass through flocking holes 22 and the first composite layer into the hollow interlayer (i.e., recessed area 21) to dissolve water-soluble film 8, and the dissolved water-soluble film 8 is finally discharged outside through flocking holes 22 together with water, and dried. At this time, the water-soluble film 8 is not present in the groove region 21, thereby forming a hollow interlayer.
In this step, the method of firstly laying the water-soluble film 8 and then dissolving the water-soluble film 8 to form the hollow interlayer has the advantages that compared with the method of directly compounding the moisture-conducting layer 4 on the heat-insulating layer 2 to form the hollow interlayer: firstly, after the water-soluble film 8 is paved in the groove area 21, the groove area 21 can be filled, the flatness of the inner side surface of the heat preservation layer 2 is ensured, and when the water-soluble film 8 is compounded on a compounding machine later, a supporting effect can be achieved, so that the part of the moisture-conducting layer 4 positioned in the groove area 21 is prevented from being excessively pressed into the groove area 21.
Moreover, the through holes 81 on the water-soluble film 8 can simply shape the glue of the hot melt adhesive 7 when the hot melt adhesive 7 is injected.
Step nine, flocking: taking cotton velvet 6, and implanting the cotton velvet 6 on the moisture-guiding layer 4 through the flocking holes 22, so that the cotton velvet 6 is filled in the flocking holes 22, and part of the cotton velvet 6 is exposed outside the leather surface layer 1, thereby completing the manufacture of the artificial leather.
As can be seen from the above steps, flocking apertures 22 act as two, one of which acts as a channel for subsequent flocking to allow lint 6 to be implanted through onto moisture-wicking layer 4, and the other of which acts as a channel for the dissolved water-soluble film 8 to drain out through.
It should be noted that, in order to ensure the antibacterial performance of the artificial leather, in the first step, the method further includes preparing a moisture-conducting antibacterial layer 5, and compounding the moisture-conducting antibacterial layer 5 between the skin-friendly layer 3 and the moisture-conducting layer 4, i.e. compounding the moisture-conducting antibacterial layer 5, the skin-friendly layer 3 and the moisture-conducting layer 4 together by hot pressing to form a first composite layer for standby.
The preparation method of the moisture-conducting antibacterial layer 5 comprises the following steps:
s1, taking cotton yarn as weft yarn, polypropylene fiber yarn as warp yarn, and treating the warp yarn, wherein the treatment process is as follows:
s11, preparing shell powder, nano silver powder and a dispersing agent; the shell powder is selected to be mainly composed of calcium carbonate, can be used as a carrier of nano silver, and can release loaded nano silver after reacting with acidic sweat.
S12, adding nano silver powder and a dispersing agent into deionized water and carrying out wet grinding; then adding shell powder and a dispersing agent into the deionized water, stirring, and then carrying out wet grinding to finally obtain slurry; the method aims at reducing the particle sizes of the nano silver powder and the shell powder, and enabling the nano silver to be loaded into the microporous structure of the calcium carbonate in the shell powder and on the surface of the microporous structure to form the shell powder-nano silver composite material.
S13, immersing the polypropylene fiber yarn in the slurry for a period of time, and taking out and drying to finish the treatment of warp yarns; the step aims to enable the surface of the polypropylene fiber line to be loaded with the shell powder-nano silver composite material.
S2, weaving the treated warps and wefts to form a fabric serving as the moisture-conducting antibacterial layer 5.
While the invention has been described in terms of embodiments, it will be appreciated by those skilled in the art that the invention is not limited thereto but rather includes the drawings and the description of the embodiments above. Any modifications which do not depart from the functional and structural principles of the present invention are intended to be included within the scope of the appended claims.

Claims (6)

1. The manufacturing method of the artificial leather with high heat preservation performance is characterized by comprising the following steps of:
step one, taking a skin-friendly fabric as a skin-friendly layer, taking a moisture-conducting fabric as a moisture-conducting layer, and compositing the skin-friendly layer and the moisture-conducting layer together in a hot-pressing mode to form a first composite layer for standby;
taking superfine fiber fabric or nylon fabric as a leather surface layer, and taking an aerogel pad as an insulation layer, wherein one side surface of the insulation layer is concaved inwards to form a groove area;
step three, compounding the heat-insulating layer and the leather surface layer together in a hot pressing or sticking mode to form a second compound layer for standby, wherein a groove area of the heat-insulating layer is positioned at one side far away from the leather surface layer;
step four, puncturing: forming flocking holes penetrating through the second composite layer by puncturing the second composite layer;
step five, film coating: a layer of water-soluble film is paved in the groove area of the second composite layer, wherein a plurality of through holes staggered with the flocking holes are distributed on the water-soluble film; after the water-soluble film is paved in the groove area, the inner side surface of the water-soluble film is flush with the inner side surface of the heat preservation layer;
step six, gluing: coating hot melt adhesive on the side surface of the side where the groove area of the second composite layer is located, and injecting the hot melt adhesive into the through hole of the water-soluble film;
step seven, compounding: the first composite layer in the first step is covered on the second composite layer, wherein a moisture-conducting layer in the first composite layer is attached to one surface of a groove area in the second composite layer, and then the first composite layer and the second composite layer are compounded on a compounding machine, so that the first composite layer and the second composite layer are adhered through the hot melt adhesive to obtain a composite germ layer;
step eight, removing the film: washing the composite germ layer obtained in the step seven with water, enabling the water to enter a groove area to dissolve a water-soluble film, and then drying;
step nine, flocking: and taking cotton velvet, implanting the cotton velvet into the moisture-conducting layer through the flocking holes, filling the cotton velvet into the flocking holes, and exposing the cotton velvet part outside the leather surface layer to finish the manufacture of the artificial leather.
2. The method for manufacturing artificial leather with high heat preservation performance according to claim 1, wherein the moisture-conducting layer is unidirectional moisture-conducting fabric or cotton fabric.
3. The method for manufacturing artificial leather with high heat preservation performance according to claim 1, wherein a moisture-conducting antibacterial layer is arranged between the skin-friendly layer and the moisture-conducting layer.
4. The method for manufacturing artificial leather with high heat insulation performance according to claim 3, wherein the moisture-conducting antibacterial layer is formed by interweaving warp yarns and weft yarns, the warp yarns are antibacterial yarns, and the weft yarns are cotton yarns.
5. The method of manufacturing high thermal insulation artificial leather according to claim 4, wherein the antibacterial yarn comprises polypropylene fiber threads doped with shell powder-nano silver composite material.
6. The method for manufacturing artificial leather with high heat insulation performance according to claim 5, wherein the method for manufacturing the moisture-conductive antibacterial layer comprises the following steps:
s1, taking cotton yarn as weft yarn, polypropylene fiber yarn as warp yarn, and treating the warp yarn, wherein the treatment process is as follows:
s11, preparing shell powder, nano silver powder and a dispersing agent;
s12, adding nano silver powder and a dispersing agent into deionized water and carrying out wet grinding; then adding shell powder and a dispersing agent into the deionized water, stirring, and then carrying out wet grinding to finally obtain slurry;
s13, immersing the polypropylene fiber yarn in the slurry for a period of time, and taking out and drying to finish the treatment of warp yarns;
s2, weaving the treated warps and wefts to form a fabric serving as a moisture-conducting antibacterial layer.
CN202111216006.9A 2021-10-19 2021-10-19 Artificial leather with high heat preservation performance and manufacturing method thereof Active CN113927962B (en)

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Inventor after: Zhou Weiqiang

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