High-strength coating oxford fabric for handbag and preparation method of high-strength coating oxford fabric

Abstract

The invention relates to the field of handbags, and particularly discloses a high-strength coating oxford fabric for handbags and a preparation method thereof.The high-strength coating oxford fabric comprises a surface layer and a tensile layer, the surface layer is bonded with the tensile layer, grooves are evenly distributed in the outer surface of the surface layer, and the grooves are internally coated with a high-strength coating capable of improving the overall strength of the surface layer; the high-strength coating is coated in the grooves formed in the surface of the surface layer, so that when the surface layer is pulled, the elasticity of the oxford fabric can be increased by utilizing the elastic deformation of the high-strength coating, and meanwhile, the situation that the air permeability of the oxford fabric becomes poor due to the fact that the whole surface layer is coated with the coating is reduced; moreover, the hot melt adhesive is adhered to the back surfaces of the grooves, so that the influence of the hot melt adhesive on the air permeability of the surface layer and the tensile layer can be effectively reduced.

Description

Technical Field

[0001] The invention relates to the field of handbags, in particular to a high-strength coated Oxford cloth for handbags and a preparation method thereof. Background Art

[0002] Oxford cloth, also known as Oxford spinning, is a fabric with diverse functions and wide applications. It is mainly used in bags and rainproof products. When traditional Oxford cloth is made into bags, in order to increase its strength, a high-strength coating is generally applied to the Oxford cloth. However, due to the coverage of the coating, the air permeability of the Oxford cloth becomes poor, which causes the user to feel stuffy on the back when carrying the backpack made of it, and reduces the comfort of carrying. At the same time, due to the entire surface coating, the elasticity of the Oxford cloth becomes poor, which causes the backpack to have a more direct impact on the user, reducing the comfort of the user's shoulders when carrying the backpack. Summary of the invention

[0003] The object of the present invention is to provide a high-strength coated Oxford cloth for handbags and a preparation method thereof, so as to overcome the above-mentioned defects in the prior art.

[0004] The present invention provides a high-strength coated Oxford cloth for handbags, comprising a surface layer and a tensile layer, wherein the surface layer is bonded to the tensile layer, the outer surface of the surface layer is evenly distributed with grooves, and the grooves are coated with a high-strength coating that can increase the elasticity of the surface layer; The surface layer is woven by first warp yarns and first weft yarns in an eight-leaf honeycomb weave structure, the groove is an inwardly concave portion of the surface layer, and the thickness of the high-strength coating is greater than the depth of the groove; The high-strength coating comprises an expansion layer and an adhesive layer, wherein the adhesive layer is evenly coated in the groove, the expansion layer is coated on the adhesive layer, the expansion layer forms bulges on the surface, and microbubble structures are evenly distributed in the expansion layer.

[0005] Through the above technical scheme, a high-strength coating is coated in the groove formed on the surface of the surface layer, so that when the surface layer is pulled, the elastic deformation of the high-strength coating can increase the elasticity of the Oxford cloth, and at the same time reduce the deterioration of the air permeability of the Oxford cloth caused by the coating on the entire surface of the surface layer, and the tensile layer is bonded to the surface layer, so that the strength of the Oxford cloth is further improved, so that the high-strength coating can completely fill the groove, so that the high-strength coating can fully increase the strength of the surface layer, the adhesive layer is coated in the groove, which can ensure the connection strength between the high-strength coating and the groove, the expansion layer fills the groove and forms a protrusion on the surface of the surface layer, so that the high-strength coating can completely fill the groove, and at the same time, the high-strength coating has sufficient deformation to avoid the high-strength coating from detaching from the groove when the surface layer is pulled, and the expansion layer with a microbubble structure reduces the overall weight of the high-strength coating, thereby reducing the overall weight of the surface layer, and at the same time, the microbubble structure enables the expansion layer to have better deformation ability, thereby effectively improving the buffering capacity of the surface layer.

[0006] The present invention is further arranged that: the warp tissue points of the honeycomb tissue are floating, and the weft tissue points are sinking, and the tissue cycle of the honeycomb tissue is: float and sink, float and float, float and sink, sink and sink, float and sink, sink and sink, float and sink, sink and sink, sink and sink, float and sink, sink and sink, sink and sink, float and sink, sink and sink, and sink and float.

[0007] Through the above technical solution, evenly distributed depressions are formed on the surface of the surface layer, so that its strength distribution is even.

[0008] The present invention is further configured as follows: the first warp yarn includes a plurality of polyester warp yarns, and the polyester warp yarn and the first weft yarn are both formed by twisting a plurality of covered filaments around a central filament.

[0009] By means of the above technical solution, the strength of the first warp yarn is increased, thereby improving the strength of the handbag made of Oxford cloth in the warp direction.

[0010] The present invention is further configured as follows: the coated filaments are made of polyester DTY fibers, the cross section of the coated filaments is a double cross shape, the central filaments are made of polyester FDY fibers, and the cross section of the central filaments is a "Y" shape.

[0011] Through the above technical scheme, the polyester FDY fiber has high strength and elastic recovery ability, which can effectively increase the strength of the surface layer. The polyester DTY fiber has a certain fluffiness, thereby increasing the comfort of the fabric. At the same time, the coated filaments with a double cross-shaped cross section and the central filaments with a "Y"-shaped cross section can increase the air permeability and quick-drying properties of the surface layer.

[0012] The present invention is further configured as follows: the tensile layer is formed by weaving the second warp yarn and the second weft yarn in a four-page plain weave structure, the warp points of the plain weave are floating, and the weft points are sinking, and the tissue cycle of the plain weave is: float, float, sink, float, sink, float, and float.

[0013] Through the above technical solution, the tensile layer has higher tensile strength.

[0014] The present invention is further configured as follows: the second warp yarn and the second weft yarn are both formed by twisting a plurality of nylon fibers, and the cross-section of the nylon fiber is a hollow circle.

[0015] Through the above technical solution, the nylon fiber with a hollow circular cross-section enables the second warp yarn and the second weft yarn to have higher tensile properties in their respective length directions.

[0016] The present invention also provides a method for preparing high-strength coated Oxford cloth for handbags, which is used to prepare the high-strength coated Oxford cloth for handbags, and specifically comprises the following steps: S1, preparing polyester warp yarn and first weft yarn, using a central filament as core yarn and a plurality of coated filaments as coated yarn, twisting the plurality of coated filaments with the central filament in the form of coated twist by a mechanical coating machine to form polyester warp yarn and first weft yarn; S2, preparing the surface layer, weaving a plurality of polyester yarns as first warp yarns and first weft yarns through a loom in an eight-leaf honeycomb weaving structure to form a surface layer, so that grooves evenly distributed are formed on the surface of the surface layer; S3, preparing the second warp yarn and the second weft yarn, twisting a plurality of nylon fibers through a ring spinning frame to form the second warp yarn and the second weft yarn; S4, preparing the tensile layer, weaving the second warp yarn and the second weft yarn through a loom in a four-leaf plain weave structure to form the tensile layer; S5, bonding the surface layer prepared in S2 and the tensile layer prepared in S4 together by hot melt adhesive, wherein the hot melt adhesive is bonded between the back side of the groove and the tensile layer; S6. Preparation for high-strength coating: make a coating template that matches the honeycomb structure of the surface layer, and provide an opening on the template that corresponds to the groove. Align the template with the surface layer, align the opening on the template with the groove, and clamp the surface layer, the tensile layer and the template with a fixture; S7, high-strength coating coating, the polyurethane coating is coated in the groove through the opening on the template, and a bonding layer is formed after it dries, and then a layer of polyurethane coating with a foaming agent is coated on the bonding layer to generate a microbubble structure during the solidification process to form an expansion layer. The thickness of the high-strength coating is greater than the depth of the groove.

[0017] Through the above technical solution, the surface layer and the tensile layer are bonded to each other using hot melt adhesive, so that the two have a high bonding strength. At the same time, the hot melt adhesive is bonded to the back of the groove, thereby effectively reducing the impact of the hot melt adhesive on the air permeability of the surface layer and the tensile layer.

[0018] The beneficial effects of the present invention are as follows: a high-strength coating is coated in the groove formed on the surface of the surface layer, so that when the surface layer is pulled, the elastic deformation of the high-strength coating can be used to increase the elasticity of the Oxford cloth, while reducing the deterioration of the air permeability of the Oxford cloth caused by coating the entire surface of the surface layer, and the anti-tension layer and the surface layer are bonded to each other by hot-melt adhesive, so that the strength of the Oxford cloth is further improved, and the hot-melt adhesive is bonded to the back of the groove, thereby effectively reducing the influence of the hot-melt adhesive on the air permeability of the surface layer and the anti-tension layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic structural diagram of the high-strength coated Oxford cloth for handbags in the present invention; Figure 2 It is a cross-sectional schematic diagram of the high-strength coated Oxford cloth for handbags in the present invention; Figure 3 It is a schematic diagram of the structure of the high-strength coating in the present invention; Figure 4 It is a schematic diagram of the structure of the groove in the present invention; Figure 5 It is a schematic structural diagram of the polyester warp yarn and the first weft yarn in the present invention; Figure 6 is the weaving pattern of the surface layer in the present invention; Figure 7 is a schematic structural diagram of the second warp yarn and the second weft yarn in the present invention; Figure 8 It is the weaving pattern of the tensile layer in the present invention.

[0020] In the figure: 101, surface layer; 1011, coated filament; 1012, central filament; 102, tensile layer; 1021, nylon fiber; 103, high-strength coating; 1031, expansion layer; 1032, bonding layer; 104, groove. DETAILED DESCRIPTION

[0021] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate directions or positional relationships based on the attached Figure 1 The orientation or positional relationship shown is only for the convenience of simplifying the description of the present invention, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0022] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is specifically described in conjunction with the following embodiments. It should be understood that the following text is only used to describe one or several specific embodiments of the present invention, and does not strictly limit the scope of protection of the specific claims of the present invention. As used herein, the terms up and down and left and right are not limited to their strict geometric definitions, but include reasonable and inconsistent tolerances for machining or human errors. The specific features of the high-strength coated Oxford cloth for handbags and the preparation method thereof are described in detail below: An embodiment of the present invention: Reference Figure 1-Figure 7 The present invention provides a high-strength coated Oxford cloth for handbags, comprising a surface layer 101 and a tensile layer 102, wherein the surface layer 101 and the tensile layer 102 are bonded together, and grooves 104 are evenly distributed on the outer surface of the surface layer 101, and a high-strength coating 103 is coated in the grooves 104 to increase the overall strength of the surface layer 101; The high-strength coating 103 includes an expansion layer 1031 and an adhesive layer 1032 . The adhesive layer 1032 is evenly coated in the groove 104 . The expansion layer 1031 is coated on the adhesive layer 1032 . The expansion layer 1031 forms a protrusion on the surface of the surface layer 101 . Microbubble structures are evenly distributed in the expansion layer 1031 .

[0023] The surface layer 101 is woven by first warp yarns and first weft yarns in an eight-leaf honeycomb weave structure. The groove 104 is an inwardly concave portion of the surface of the surface layer 101 . The thickness of the high-strength coating 103 is greater than the depth of the groove 104 .

[0024] The warp point of the honeycomb tissue is floating, and its weft point is sinking. The tissue cycle of the honeycomb tissue is: float and sink, float and sink, float and sink, float and sink, sink and sink, float and sink, sink and sink, float and sink, sink and sink, float and sink, sink and sink, and sink and sink.

[0025] The first warp yarn includes a plurality of polyester warp yarns. The polyester warp yarn and the first weft yarn are formed by twisting a plurality of covered filaments 1011 around a central filament 1012 .

[0026] The coated filament 1011 is made of polyester DTY fiber, and the cross section of the coated filament 1011 is a double cross shape. The central filament 1012 is made of polyester FDY fiber, and the cross section of the central filament 1012 is a "Y" shape.

[0027] The tensile layer 102 is woven by the second warp yarn and the second weft yarn in a four-page plain weave structure. The warp points of the plain weave are floating, and the weft points are sinking. The weave cycle of the plain weave is: float, float, sink, float, sink, float, and float.

[0028] The second warp yarn and the second weft yarn are both formed by twisting a plurality of nylon fibers 1021 , and the cross section of the nylon fiber 1021 is a hollow circle.

[0029] A method for preparing high-strength coated Oxford cloth for handbags, used for preparing the high-strength coated Oxford cloth for handbags, specifically comprises the following steps: S1, preparing polyester warp yarn and first weft yarn, using the central filament 1012 as the core yarn and the plurality of coated filaments 1011 as the coated yarn, twisting the plurality of coated filaments 1011 with the central filament 1012 in the form of coated twist by a mechanical coating machine to form polyester warp yarn and first weft yarn; S2, preparing the surface layer 101, weaving a plurality of polyester yarns as first warp yarns and first weft yarns through a loom in an eight-leaf honeycomb weaving structure to form the surface layer 101, so that evenly distributed grooves 104 are formed on the surface of the surface layer 101; S3, preparing the second warp yarn and the second weft yarn, twisting a plurality of nylon fibers 1021 through a ring spinning machine to form the second warp yarn and the second weft yarn; S4, preparing the tensile layer 102, weaving the second warp yarn and the second weft yarn through a loom in a four-leaf plain weave structure to form the tensile layer 102; S5, bonding the surface layer 101 prepared in S2 and the tensile layer 102 prepared in S4 together by hot melt adhesive, wherein the hot melt adhesive is bonded between the back side of the groove 104 and the tensile layer 102; S6, preparation for coating of high-strength coating 103, making a coating template that matches the honeycomb structure on the surface of surface layer 101, the template can be made by 3D printing, and an opening corresponding to groove 104 is opened on the template, the template is aligned with the surface layer 101, the opening on the template is aligned with groove 104, and the surface layer 101, tensile layer 102 and template are clamped by a clamp; S7, high-strength coating 103 is applied, and the polyurethane coating is applied into the groove 104 through the opening on the template, and a bonding layer 1032 is formed after it dries. After the polyurethane coating is applied into the groove 104, part of the polyurethane coating is embedded in the yarn of the surface layer 101. After it solidifies, the bonding layer 1032 has a high connection strength with the surface layer 101, and then a layer of polyurethane coating with a foaming agent is applied on the bonding layer 1032. The foaming agent in this embodiment is an isocyanate polyurethane foaming agent. During the foaming process, the reaction between isocyanate and polyol will generate heat, so that the system temperature increases, thereby accelerating the reaction. At the same time, the gas generated in the reaction (such as carbon dioxide) will form a microbubble structure in the polyurethane foam, so that it will generate a microbubble structure during the solidification process to form an expansion layer 1031. The thickness of the high-strength coating 103 is greater than the depth of the groove 104.

[0030] It will be clear to those skilled in the art that various modifications to the above embodiments may be made without departing from the overall spirit and concept of the present invention. All of these modifications fall within the scope of protection of the present invention. The protection scheme of the present invention shall be subject to the claims attached to the present invention.

Claims

1. A high-strength coated Oxford cloth for handbags, characterized in that: It comprises a surface layer (101) and a tensile layer (102), wherein the surface layer (101) and the tensile layer (102) are bonded to each other, the outer surface of the surface layer (101) is evenly distributed with grooves (104), and the grooves (104) are coated with a high-strength coating (103) that can increase the elasticity of the surface layer (101); The surface layer (101) is woven from first warp yarns and first weft yarns in an eight-leaf honeycomb weave structure, the groove (104) is an inwardly concave portion of the surface of the surface layer (101), and the thickness of the high-strength coating (103) is greater than the depth of the groove (104); The high-strength coating (103) comprises an expansion layer (1031) and an adhesive layer (1032), wherein the adhesive layer (1032) is evenly coated in the groove (104), the expansion layer (1031) is coated on the adhesive layer (1032), the expansion layer (1031) forms a protrusion on the surface of the surface layer (101), and microbubble structures are evenly distributed in the expansion layer (1031).

2. The high-strength coated Oxford cloth for handbags according to claim 1, characterized in that: The warp points of the honeycomb tissue are floating, and the weft points are sinking, and the tissue cycle of the honeycomb tissue is: float and sink, float and float, float and sink, float and sink, sink and sink, float and sink, sink and sink, float and sink, sink and sink, float and sink, sink and sink, float and sink, and sink and sink.

3. The high-strength coated Oxford cloth for handbags according to claim 2, characterized in that: The first warp yarns include a plurality of polyester warp yarns, and the polyester warp yarns and the first weft yarns are both formed by twisting a plurality of covered filaments (1011) around a central filament (1012).

4. The high-strength coated Oxford cloth for handbags according to claim 3, characterized in that: The coated filament (1011) is made of polyester DTY fiber, and the cross section of the coated filament (1011) is a double cross shape; the central filament (1012) is made of polyester FDY fiber, and the cross section of the central filament (1012) is a "Y" shape.

5. The high-strength coated Oxford cloth for handbags according to claim 1, characterized in that: The tensile layer (102) is formed by weaving the second warp yarn and the second weft yarn in a four-page plain weave structure, the warp weave points of the plain weave are floating, and the weft weave points are sinking, and the weave cycle of the plain weave is: float, float, sink, float, sink, sink, float, float, and float.

6. The high-strength coated Oxford cloth for handbags according to claim 5, characterized in that: The second warp yarn and the second weft yarn are both formed by twisting a plurality of nylon fibers (1021), and the cross-section of the nylon fibers (1021) is a hollow circle.

7. A method for preparing high-strength coated Oxford cloth for handbags, characterized in that: The method for preparing the high-strength coated Oxford cloth for handbags as claimed in any one of claims 1 to 6 specifically comprises the following steps: S1, preparing polyester warp yarn and first weft yarn, using a central filament (1012) as a core yarn and a plurality of coated filaments (1011) as coated yarns, twisting the plurality of coated filaments (1011) with the central filament (1012) in a coated twisting manner through a mechanical coating machine to form polyester warp yarn and first weft yarn; S2, preparing the surface layer (101), weaving a plurality of polyester yarns as first warp yarns and first weft yarns through a loom in an eight-leaf honeycomb weaving structure to form the surface layer (101), so that grooves (104) are evenly distributed on the surface of the surface layer (101); S3, preparing the second warp yarn and the second weft yarn, twisting a plurality of nylon fibers (1021) through a ring spinning machine to form the second warp yarn and the second weft yarn; S4, preparing the tensile layer (102), weaving the second warp yarn and the second weft yarn through a loom in a four-leaf plain weave structure to form the tensile layer (102); S5, bonding the surface layer (101) prepared in S2 and the tensile layer (102) prepared in S4 together by hot melt adhesive, wherein the hot melt adhesive is bonded between the back side of the groove (104) and the tensile layer (102); S6, preparing for coating of the high-strength coating (103), making a coating template that matches the honeycomb structure of the surface layer (101), the template having an opening corresponding to the groove (104), aligning the template with the surface layer (101), aligning the opening on the template with the groove (104), and clamping the surface layer (101), the tensile layer (102) and the template with a clamp; S7, applying a high-strength coating (103), applying a polyurethane coating through the opening on the template into the groove (104), and forming a bonding layer (1032) after drying, and then applying a layer of polyurethane coating with a foaming agent added on the bonding layer (1032) to generate a microbubble structure during the solidification process to form an expansion layer (1031), the thickness of the high-strength coating (103) is greater than the depth of the groove (104).

Images