Buffering, damping and stab-resistant waistcoat and preparation method thereof

Abstract

The invention discloses a buffering, damping and stab-resistant waistcoat and a preparation method thereof. The waistcoat comprises a front piece and a rear piece, and fabric of the front piece and the rear piece sequentially comprises an outer fabric layer, a buffering puncture-proof layer and an inner fabric layer. The lower sides of the outer fabric layer and the inner fabric layer are connected through a zipper; the buffering stab-resistant layer comprises a fabric which has a half-auxetic or full-auxetic effect and is of a folding structure, a stab-resistant resin sheet is arranged on the fabric, and the edge of the buffering stab-resistant layer is sewn with the inner fabric layer through sewing threads. On the basis of keeping the stab-resistant function of the waistcoat, the buffering and damping performance of the waistcoat is improved through the pull expansion structure of the folded fabric and the yarn-based inflation thin pipes, and the zippers are arranged on the left side and the lower side of the waistcoat so that the damage condition of the stab-resistant resin sheets in the buffering stab-resistant layer can be clearly and automatically detected after the waistcoat is worn and used; and the small units of the stab-resistant resin sheets are replaced, so that the buffering and damping protection on the human body and the intelligent driving type interactive development of the stab-resistant waistcoat are realized.

Description

Technical Field

[0001] The invention discloses a cushioning, shock-absorbing and stab-proof vest and a preparation method thereof, belonging to the technical field of textile materials. Background Art

[0002] At present, the development and design of stab-proof clothing mainly focuses on how to optimize stab-proof materials on the basis of improving the stab-proof effect. For example, block-shaped resin sheets can effectively resist the penetration of knife tips and help dissipate the impact energy of knife penetration. Bonding hard resin sheets to the surface of flexible fabrics can make the materials have excellent stab-proof performance while maintaining good flexibility and air permeability. At the same time, the structure of stab-proof materials can be optimized to further achieve the effect of buffering and shock absorption. By adopting a tensile folding structure combined with a stab-proof resin sheet, the stab-proof material can disperse the impact force through its unique deformation mechanism when it is pierced by a knife, increase the difficulty of knife penetration, thereby effectively preventing or slowing down the puncture process and significantly improving the protective effectiveness of the stab-proof vest. In order to allow the foldable stab-proof fabric to achieve autonomous unfolding and folding, combined with a simple-to-drive, interactively safe inflatable unfolding structure, and using a multi-scale structure of woven yarns to wrap the inflatable tube, an efficient and reliable pneumatic unfolding drive system can be effectively constructed, further ensuring the buffering and shock-absorbing protection functions of the foldable stab-proof fabric.

[0003] To sum up, in view of the current limitations of stab-proof vests in terms of cushioning, shock absorption and multiple protection of the human body on the basis of ensuring stab resistance, and the intelligent development of stab-proof vests in the context of smart textiles, it is necessary to develop an inflatable cushioning and shock-absorbing stab-proof vest that combines stab-proof materials with textile-based pneumatic deployment drives to achieve stab-proof, cushioning and shock-absorbing functions. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a cushioning and shock-absorbing stab-proof vest and a preparation method thereof, so as to solve the deficiencies of traditional stab-proof vests in terms of cushioning protection for the human body and reusability.

[0005] In order to solve the above problems, the present invention provides a buffering, shock-absorbing and stab-proof vest, comprising a front piece and a back piece, the fabrics of the front piece and the back piece respectively comprising an outer fabric layer, a buffering and stab-proof layer and an inner fabric layer; the lower sides of the outer fabric layer and the inner fabric layer are connected by a zipper; the buffering and stab-proof layer comprises a fabric with a folding structure having a semi-expansion or full-expansion effect, the fabric is provided with a stab-proof resin sheet, and the edge of the buffering and stab-proof layer is sewn to the inner fabric layer by sewing thread.

[0006] Preferably, the fabric with the folded structure having a semi-tension or full-tension effect comprises at least one of Miura diamond folded fabric, inlaid folded fabric, tubular folded fabric, honeycomb folded fabric, and square twist folded fabric.

[0007] Preferably, the stab-proof resin sheet comprises at least one of a pure resin sheet and an inorganic particle-composite resin sheet, and its plane shape is at least one of an arrow shape, a parallelogram, a rectangle, a square, a regular hexagon, a pentagon, a triangle and an isosceles trapezoid; its side is an inclined surface, and the inclined surfaces between two adjacent resin sheets correspond to each other; the thickness of the stab-proof resin sheet is 1.5-3mm; and the stab-proof resin sheet is bonded to the fabric by hot melt adhesive.

[0008] More preferably, the pure resin sheet includes at least one of polyimide, polypropylene, polycarbonate, high molecular weight polyethylene, polyamide, epoxy resin E51, polyetheretherketone, polyphenylene sulfide, polyetherimide, and copolymer; the inorganic particle-composite resin sheet is formed by curing inorganic particles and resin at 200-300°C; wherein the inorganic particles include at least one of natural diamond, artificial diamond, cubic boron nitride, silicon carbide, boron carbide, hexagonal boron nitride, and titanium nitride, and the particle size is 500-2000nm.

[0009] Preferably, the edge of the buffer and stab-proof layer is sewn to the inner fabric layer by sewing thread at 2-5 mm.

[0010] Preferably, the shoulders and waist of the back piece are respectively provided with shoulder guards and waist guards, and the inner sides of the shoulders and waist are sewn with Velcro, and the outer sides of the corresponding positions of the shoulders and waist on the front piece are sewn with matching Velcro; the outer surfaces of the shoulders on both sides of the front piece are provided with Velcro, and the inner surfaces of the corresponding positions of the shoulders on both sides of the back piece are sewn with matching Velcro.

[0011] More preferably, the Velcro is sewn to the shoulders and waist of the front piece and the shoulders and waist of the back piece by sewing thread; the size of the Velcro on the shoulders of the front and back pieces is greater than 5×5cm, the size of the Velcro on the waist is greater than 10×10cm in diameter, and the edge of the Velcro on the front piece exceeds the edge of the Velcro at the corresponding position on the back piece by 1-2cm.

[0012] Preferably, the outer fabric layer is woven from at least one of polyester fiber, nylon fiber, aramid fiber, carbon fiber, ultra-high molecular weight polyethylene fiber, glass fiber, basalt fiber, and metal fiber by weaving or knitting; the inner fabric layer is woven from at least one of cotton, polyester, nylon, silk, modal, wool, viscose, and acetate filament fabrics by weaving or knitting.

[0013] The present invention also provides a method for preparing the above-mentioned cushioning, shock-absorbing and stab-proof vest, comprising the following steps:

[0014] Step 1): Make a pattern for the vest, select fabrics and cut out the front and back pieces;

[0015] Step 2): placing the stab-proof resin sheet in a mold, applying hot melt adhesive on the surface of the stab-proof resin sheet, flattening the fabric, and fitting the stab-proof resin sheet to the fabric surface by using the convex groove of the mold to fit the fold of the fabric folding structure; pressing the stab-proof resin sheet to a folded state, arranging it neatly without gaps, and bonding the back of the fabric evenly to the fabric surface with hot melt adhesive; arranging the yarn-based inflatable tubes at intervals at the fold of the fabric and sewing them, and leaving an inflation port at the lower end of the fabric for the inflatable tubes;

[0016] Step 3) sandwiching the buffer and stab-proof layer between the outer fabric layer and the inner fabric layer, sewing and locking the three layers of fabric on the right side and the upper side, sewing and locking the buffer and stab-proof layer with the left side and the lower side of the inner fabric layer separately, and sewing half of the zipper, and sewing the other half of the corresponding zipper on the left side and the lower side of the outer fabric layer; preparing the front piece and the back piece in the same way;

[0017] Step 4): The waist and shoulders of the front and back pieces prepared by sewing in step 3) are sewed with corresponding Velcro, and elastic bands are sewn on the inside to connect the front and back pieces of the vest as a whole.

[0018] Preferably, in the step 2), the diameter of the inflatable tube inside the yarn-based inflatable tube is 5-10 mm; a yarn layer is woven on the outer layer of the inflatable tube, and the material of the yarn layer is one or more of polyester, polyamide, polypropylene, and nylon; the weaving structure of the yarn layer includes at least one of two-dimensional single-axis weaving, two-dimensional double-axis weaving, and three-dimensional weaving.

[0019] Preferably, in step 2), the mold comprises an inner concave mold and an outer pressure mold, the inner concave mold is used to arrange the resin sheet, and the outer pressure mold is used to bond the resin sheet and the folded fabric.

[0020] More preferably, the size of the inner concave mold is greater than 300×300 mm, and the size of the outer compression mold is greater than 200×200 mm.

[0021] The invention can be worn with other clothing as an outer layer or next to the body, and weighs 1.2-2.4 kg. It can be used in various occasions where protection is required, such as high-risk occupations such as police, security personnel, and soldiers, outdoor adventures, cycling, hiking and other sports protection, and daily wear protection.

[0022] The present invention not only maintains the stab-proof function of the vest, but also utilizes the tensile expansion structure of the folded fabric and the yarn-based inflatable tubes to improve the cushioning and shock-absorbing properties of the vest, and zippers are installed on the left and lower sides of the vest to clearly detect the damage of the stab-proof resin sheet in the buffering and stab-proof layer after the vest is worn and used, and to replace the small units of the stab-proof resin sheet.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] (1) The cushioning, shock-absorbing and stab-proof vest described in the present invention is partially stitched in three layers using a high-strength outer fabric layer, a cushioning and stab-proof middle layer and a comfortable and soft inner fabric layer. Zippers are sewn on the left and lower sides of the vest, which can facilitate observation of damage to the small units of the stab-proof resin sheet of the vest after use. The present invention uses a specific resin sheet bonding mold to achieve precise bonding between the resin sheet and the folded fabric, which can effectively enhance the cushioning and shock-absorbing effect of the vest, so that the vest can better absorb and disperse energy when impacted. The designed and prepared cushioning and shock-absorbing vest not only has excellent stab-proof performance, but also ensures comfort and breathability when worn, protecting the wearer while ensuring the fit and comfort of wearing.

[0025] (2) The stab-proof vest of the present invention is lightweight and highly efficient. The vest preparation process is simple, and the weight is controlled between 1.2 and 2.4 kg, which is convenient for the wearer to wear or carry for a long time. It is suitable for various occasions requiring protection, meeting the needs of high-risk occupations and being suitable for daily wear and protection, and has broad application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic diagram of a cushioning, shock-absorbing and stab-proof vest provided by the present invention;

[0027] Figure 2 Schematic diagram of the front piece (a) and the back piece (b) of the cushioning, shock-absorbing and stab-proof vest provided by the present invention;

[0028] Figure 3 A schematic diagram of a fabric layer of a cushioning, shock-absorbing, and stab-proof vest provided by the present invention;

[0029] Figure 4 It is a schematic diagram of the resin sheet being attached to the mold;

[0030] Figure 5 A schematic diagram of the mold after the stab-proof resin sheet is placed;

[0031] Figure 6 Schematic diagrams of stab-resistant resin sheets of different shapes, including (c) arrow shape; (d) parallelogram; (e) rectangle; (f) square; (g) regular hexagon; (h) pentagon; (i) triangle; (j) isosceles trapezoid;

[0032] Figure 7 Schematic diagram of the arrow-shaped stab-proof resin sheet attached to the Miura folded fabric;

[0033] Figure 8 Schematic diagram of the yarn-based gas-filled capillaries. DETAILED DESCRIPTION

[0034] In order to make the present invention more clearly understood, preferred embodiments are described in detail below with reference to the accompanying drawings.

[0035] A method for preparing a cushioning, shock-absorbing and stab-proof vest comprises the following steps:

[0036] Step 1): Vest pattern making and cutting: Make the pattern of the vest, select the fabric and cut out the front and back pieces;

[0037] Step 2): Preparation of the buffer and stab-proof layer of the vest: by placing the stab-proof resin sheet in a mold, applying hot melt adhesive on the surface of the stab-proof resin sheet, flattening the folded fabric, and fitting the convex groove of the mold with the folded fabric crease to fit the stab-proof resin sheet on the folded fabric surface; pressing each folded fabric unit to a folded state, arranging them neatly without gaps, and bonding the back of the folded fabric evenly to the surface of the high-strength polyester fabric with hot melt adhesive; sewing the yarn-based inflatable tubes at the folded fabric creases at intervals of 5 cm, and leaving an 8 cm inflation port at the lower end of the folded fabric;

[0038] Step 3): Suture the outer layer, stab-proof layer and inner layer of the vest: sandwich the buffer and stab-proof layer of the vest between the outer fabric layer and the inner fabric layer, sew and lock the three layers of fabric on the right side and the upper side, sew and lock the buffer and stab-proof layer with the left side and the lower side of the inner fabric layer separately, sew half of the zipper, and sew the other half of the corresponding zipper on the left side and the lower side of the outer fabric layer;

[0039] Step 4): The waist and shoulders of the front and back pieces prepared by sewing in step 3) are sewed with corresponding Velcro, and elastic bands are sewn on the inside to connect the front and back pieces of the vest as a whole.

[0040] like Figure 8 As shown, the diameter of the inflatable tube 82 inside the yarn-based inflatable tube is 5-10 mm; the yarn layer 81 is woven on the outer layer of the inflatable tube 82, and the material of the yarn layer is one or more of polyester, polyamide, polypropylene, and nylon; the weaving structure of the yarn layer 81 includes at least one of two-dimensional single-axis weaving, two-dimensional double-axis weaving, and three-dimensional weaving.

[0041] like Figure 4 , 5 As shown, the mold includes an inner concave mold 61 and an outer pressure mold 62. The inner concave mold 61 is used to arrange the resin sheet, and the outer pressure mold 62 is used to fit the resin sheet and the folded fabric. The size of the inner concave mold is greater than 300×300mm, and the size of the outer pressure mold is greater than 200×200mm;

[0042] like Figure 1-3As shown, a buffering, shock-absorbing and stab-proof vest provided by the present invention comprises a front piece 1 and a back piece 2, wherein the fabrics of the front piece 1 and the back piece 2 comprise an outer fabric layer 7, a buffering and stab-proof layer 8 and an inner fabric layer 9 in sequence; the lower sides of the outer fabric layer 7 and the inner fabric layer 9 are connected by a zipper 5; the buffering and stab-proof layer 8 comprises a fabric with a folded structure having a semi-expanding or fully-expanding effect, on which a stab-proof resin sheet 64 is provided, and the edge of the buffering and stab-proof layer 8 is sewn to the inner fabric layer 9 by a sewing thread 3.

[0043] The fabric with a folded structure having a semi-tension or full-tension effect includes a Miura diamond folded fabric ( Figure 7 As shown), at least one of inlaid folded fabric, tubular folded fabric, honeycomb folded fabric, and square twisted folded fabric.

[0044] like Figure 6 As shown, the stab-proof resin sheet 64 includes at least one of a pure resin sheet and an inorganic particle-composite resin sheet, and its plane shape is at least one of an arrow shape, a parallelogram, a rectangle, a square, a regular hexagon, a pentagon, a triangle, and an isosceles trapezoid; its side is an inclined surface, and the inclined surfaces between two adjacent resin sheets correspond to each other; the thickness of the stab-proof resin sheet is 1.5-3mm; the stab-proof resin sheet 64 is bonded to the fabric by hot melt adhesive. The hot melt adhesive is at least one of TPU hot melt adhesive, EVA hot melt adhesive, SBS hot melt adhesive, PA hot melt adhesive, PO hot melt adhesive, PUR reactive polyurethane hot melt adhesive, and nylon hot melt adhesive, and the melting point is 50-200°C.

[0045] The pure resin sheet includes at least one of polyimide, polypropylene, polycarbonate, high molecular weight polyethylene, polyamide, epoxy resin E51, polyetheretherketone, polyphenylene sulfide, polyetherimide, and copolymer; the inorganic particle-composite resin sheet is formed by curing inorganic particles and resin at 200-300°C; wherein the inorganic particles include at least one of natural diamond, artificial diamond, cubic boron nitride, silicon carbide, boron carbide, hexagonal boron nitride, and titanium nitride, and the particle size is 500-2000nm.

[0046] The edge of the buffer and stab-proof layer 8 is sewed to the inner fabric layer 9 by sewing thread 3 at 2-5 mm.

[0047] The shoulder and waist of the back piece 2 are provided with shoulder guards and waist guards respectively, and the inner sides of the shoulder and waist are sewn with back piece shoulder Velcro 21 and back piece waist Velcro 22, and the inner sides of the back piece shoulder Velcro 21 and back piece waist Velcro 22 are sewn with waist elastic cord and shoulder elastic cord 41 respectively, and the outer sides of the corresponding positions of the shoulders and waist on the front piece 1 are sewn with matching front piece shoulder Velcro 11 and front piece waist Velcro 12; the outer surfaces of the shoulders on both sides of the front piece 1 are provided with Velcro, and the inner surfaces of the corresponding positions of the shoulders on both sides of the back piece 2 are sewn with matching Velcro. The Velcro is sewn to the shoulders and waist of the front piece 1 and the shoulders and waist of the back piece 2 through sewing thread 3; the size of the Velcro on the shoulders of the front piece 1 and the back piece 2 is greater than 5×5cm, the size of the Velcro on the waist is greater than 10×10cm in diameter, and the edge of the Velcro size of the front piece 1 exceeds the edge of the Velcro at the corresponding position on the back piece 2 by 1-2cm.

[0048] The outer fabric layer 7 is woven by at least one of polyester fiber, nylon fiber, aramid fiber, carbon fiber, ultra-high molecular weight polyethylene fiber, glass fiber, basalt fiber, and metal fiber through weaving or knitting; the inner fabric layer is woven by at least one of cotton, polyester, nylon, silk, modal, wool, viscose, and acetate filament fabrics through weaving or knitting.

[0049] The present invention provides 5 embodiments, and the parameters are shown in Table 1.

[0050] Table 1

[0051]

[0052]

Claims

1. A cushioning, shock-absorbing and stab-proof vest, comprising a front piece (1) and a back piece (2), characterized in that: The fabrics of the front piece (1) and the back piece (2) sequentially include an outer fabric layer (7), a buffer and stab-proof layer (8) and an inner fabric layer (9); the lower sides of the outer fabric layer (7) and the inner fabric layer (9) are connected by a zipper (5); the buffer and stab-proof layer (8) includes a fabric with a folded structure having a semi-expanding or fully-expanding effect, and a stab-proof resin sheet (64) is provided on the fabric; the edge of the buffer and stab-proof layer (8) is sewn to the inner fabric layer (9) by a sewing thread (3).

2. The shock-absorbing and stab-proof vest according to claim 1, characterized in that: The fabric with a folded structure having a semi-tension or full-tension effect comprises at least one of a Miura diamond folded fabric, an inlaid folded fabric, a tubular folded fabric, a honeycomb folded fabric, and a square twist folded fabric.

3. The cushioning, shock-absorbing and stab-proof vest according to claim 1, characterized in that: The stab-proof resin sheet (64) comprises at least one of a pure resin sheet and an inorganic particle-composite resin sheet, and its plane shape is at least one of an arrow shape, a parallelogram, a rectangle, a square, a regular hexagon, a pentagon, a triangle and an isosceles trapezoid; its side is an inclined surface, and the inclined surfaces between two adjacent resin sheets correspond to each other; the thickness of the stab-proof resin sheet is 1.5-3 mm; and the stab-proof resin sheet (64) is bonded to the fabric by hot melt adhesive.

4. The shock-absorbing and stab-proof vest according to claim 3, characterized in that: The pure resin sheet includes at least one of polyimide, polypropylene, polycarbonate, high molecular weight polyethylene, polyamide, epoxy resin E51, polyetheretherketone, polyphenylene sulfide, polyetherimide, and copolymer; the inorganic particle-composite resin sheet is formed by curing inorganic particles and resin at 200-300°C; wherein the inorganic particles include at least one of natural diamond, artificial diamond, cubic boron nitride, silicon carbide, boron carbide, hexagonal boron nitride, and titanium nitride, and the particle size is 500-2000nm.

5. The shock-absorbing and stab-proof vest according to claim 1, characterized in that: The edge of the buffer and stab-proof layer (8) is sewn to the inner fabric layer (9) at a distance of 2-5 mm by means of a sewing thread (3).

6. The shock-absorbing and stab-proof vest according to claim 1, characterized in that: The shoulders and waist of the rear panel (2) are provided with shoulder guards and waist guards respectively, and the inner sides of the shoulders and waist are sewn with Velcro, and the outer sides of the corresponding positions of the shoulders and waist on the front panel (1) are sewn with Velcro matching therewith; the outer surfaces of the shoulders on both sides of the front panel (1) are provided with Velcro, and the inner surfaces of the corresponding positions of the shoulders on both sides of the rear panel (2) are sewn with Velcro matching therewith.

7. The shock-absorbing and stab-proof vest according to claim 6, characterized in that: The Velcro is sewn to the shoulders and waist of the front piece (1) and the shoulders and waist of the back piece (2) by sewing thread (3); the size of the Velcro on the shoulders of the front piece (1) and the back piece (2) is greater than 5×5 cm, the size of the Velcro on the waist is greater than 10×10 cm in diameter, and the edge of the Velcro on the front piece (1) exceeds the edge of the Velcro at the corresponding position on the back piece (2) by 1-2 cm.

8. The shock-absorbing and stab-proof vest according to claim 1, characterized in that: The outer fabric layer (7) is woven from at least one of polyester fiber, nylon fiber, aramid fiber, carbon fiber, ultra-high molecular weight polyethylene fiber, glass fiber, basalt fiber, and metal fiber by weaving or knitting; the inner fabric layer is woven from at least one of cotton, polyester, nylon, silk, modal, wool, viscose, and acetate filament fabrics by weaving or knitting.

9. The method for preparing the shock-absorbing and stab-proof vest according to any one of claims 1 to 8, characterized in that: The following steps are involved: Step 1): Make a pattern for the vest, select fabrics and cut out the front and back pieces; Step 2): placing the stab-proof resin sheet in a mold, applying hot melt adhesive on the surface of the stab-proof resin sheet, flattening the fabric, and fitting the stab-proof resin sheet to the fabric surface by using the convex groove of the mold to fit the fold of the fabric folding structure; pressing the stab-proof resin sheet to a folded state, arranging it neatly without gaps, and bonding the back of the fabric evenly to the fabric surface with hot melt adhesive; arranging the yarn-based inflatable tubes at intervals at the fold of the fabric and sewing them, and leaving an inflation port at the lower end of the fabric for the inflatable tubes; Step 3) sandwiching the buffer and stab-proof layer between the outer fabric layer and the inner fabric layer, sewing and locking the three layers of fabric on the right side and the upper side, sewing and locking the buffer and stab-proof layer with the left side and the lower side of the inner fabric layer separately, and sewing half of the zipper, and sewing the other half of the corresponding zipper on the left side and the lower side of the outer fabric layer; preparing the front piece and the back piece in the same way; Step 4): The waist and shoulders of the front and back pieces prepared by sewing in step 3) are sewed with corresponding Velcro, and elastic bands are sewn on the inside to connect the front and back pieces of the vest as a whole.

10. The method for preparing the shock-absorbing and stab-proof vest according to claim 9, characterized in that: In the step 2), the diameter of the inflatable tube inside the yarn-based inflatable tube is 5-10 mm; a yarn layer is woven on the outer layer of the inflatable tube, and the material of the yarn layer is one or more of polyester, polyamide, polypropylene, and nylon; the weaving structure of the yarn layer includes at least one of two-dimensional single-axis weaving, two-dimensional double-axis weaving, and three-dimensional weaving.

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