CN115928455B - Construction process of stab-resistant layer and stab-resistant garment - Google Patents
Construction process of stab-resistant layer and stab-resistant garment Download PDFInfo
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- CN115928455B CN115928455B CN202310113065.6A CN202310113065A CN115928455B CN 115928455 B CN115928455 B CN 115928455B CN 202310113065 A CN202310113065 A CN 202310113065A CN 115928455 B CN115928455 B CN 115928455B
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Abstract
The invention provides a stab-resistant layer construction process and stab-resistant clothing, wherein the stab-resistant layer construction process comprises the following steps: s10: mixing epoxy resin, polyurethane, a curing agent and an accelerator to form a binder; s20: respectively brushing the adhesive on the two opposite side surfaces of the base cloth; s30: mixing a modified epoxy resin, a modified curing agent, an accelerator and a first filler to form a rigid resin; s40: mixing epoxy resin, polyurethane, a modified curing agent, an accelerator, a plasticizer, a toughening agent and a second filler to form flexible resin; s50: coating one side of the base cloth with the flexible resin, and coating the other side of the base cloth with the rigid resin to form a composite layer; s60: and (5) putting the mixture into a hot press to form the stab-resistant layer. The stab-resistant garment comprises a surface layer, a lining layer and a composite protective layer arranged between the surface layer and the lining layer. The stab-resistant layer construction process and the stab-resistant garment provided by the invention improve wearing comfort.
Description
Technical Field
The invention belongs to the technical field of layered products, and particularly relates to a stab-resistant layer construction process and stab-resistant clothing.
Background
The stab-resistant vest mainly comprises a garment sleeve, a lining and a stab-resistant layer. The clothing sleeve is generally made of cotton and chemical fiber fabrics and plays roles of covering and protecting the protective layer; the lining is made of soft materials such as flannelette, sprayed flocculus and the like, and has a buffering effect on external force; the stab-resistant layer is a core part of the stab-resistant vest, is usually made of aluminum alloy, is made into geometric shapes such as fish scales or hexagonal planes, and is formed by mutually overlapping and combining, and can effectively prevent the injury of daggers, triangular scrapers, spring knives and the like to the chest, abdomen and back of a human body.
The existing stab-resistant vest is generally manufactured by adopting high-strength fiber cloth, multiple layers of cloth are stacked together in the manufacturing process, but the fiber cloth has a plurality of holes, the holes easily influence the protective performance of the cloth, the number of layers of the fiber cloth can only be increased for improving protection, the action flexibility of a wearer can be influenced by the number of layers of the fiber cloth, and the wearing experience is reduced.
Disclosure of Invention
The embodiment of the invention provides a construction process of an anti-stab layer and anti-stab clothes, and aims to solve the technical problems that the protection effect and wearing experience are affected by the pores of fiber cloth adopted by the existing anti-stab vest.
In a first aspect, an embodiment of the present invention provides a process for constructing an anti-piercing layer, including:
s10: mixing epoxy resin, polyurethane, a curing agent and an accelerator to form a binder;
s20: respectively brushing the adhesive on the two opposite side surfaces of the base cloth;
s30: mixing a modified epoxy resin, a modified curing agent, an accelerator and a first filler to form a rigid resin;
s40: mixing epoxy resin, polyurethane, a modified curing agent, an accelerator, a plasticizer, a toughening agent and a second filler to form flexible resin;
s50: coating the flexible resin on the adhesive on one side of the base cloth, and coating the rigid resin on the adhesive on the other side of the base cloth to form a composite layer;
s60: and placing the composite layer into a hot press for molding to form the stab-resistant layer.
Compared with the prior art, the scheme disclosed by the embodiment of the application has the advantages that the viscosity of the adhesive formed by mixing the epoxy resin, the polyurethane, the curing agent and the accelerator in proportion is lower, and the adhesive is coated on the two opposite sides of the base cloth, so that the adhesive fills the weaving holes of the base cloth, and the porosity is reduced; the outer layer of the base cloth is coated with the rigid resin, so that the shearing strength is improved, and the forward advancing prevention function of the sharp instrument is better; the flexible resin is coated on the inner side of the base cloth, so that the damage energy can be absorbed, partial deformation of the base cloth is allowed, quick spreading and expansion of the damage are prevented, and wearing comfort is improved; the base cloth coated with the adhesive, the rigid resin and the flexible resin cooperate to absorb energy together, the process is simple and convenient to implement, and the cost is low.
With reference to the first aspect, in a possible implementation manner, the first filler is one or a combination of more of carbon nanotubes, ceramics and carbon fibers.
With reference to the first aspect, in a possible implementation manner, the second filler is graphene.
With reference to the first aspect, in a possible implementation manner, the toughening agent is one or a combination of more of liquid rubber, elastomer and polyimide.
With reference to the first aspect, in one possible implementation manner, the base fabric is one of an aramid fiber woven fabric, an ultra-high molecular polyethylene fiber, a carbon fiber, a poly-p-phenylene benzobisoxazole fiber, and a basalt fiber.
With reference to the first aspect, in one possible implementation manner, the step S30 includes:
s31: taking 100 parts of modified epoxy resin, 12-20 parts of curing agent, 1.2-12 parts of accelerator and 0-15 parts of first filler, and uniformly stirring;
s32: and heating to 60-80 ℃, and curing at constant temperature for 2 hours to form the rigid resin.
In combination with the first aspect, in one possible implementation manner, the step S20 is performed by using a glue spreader, where the glue spreader includes a frame, and a plurality of press roller groups, a dryer and a material winding machine that are arranged on the frame along a base cloth running path in sequence, a plurality of glue containing grooves located in the preamble of the press roller groups are further arranged on the frame, each press roller group includes an upper press roller and a lower press roller that are arranged in parallel up and down, a channel through which the base cloth passes is formed between the upper press roller and the lower press roller, and the dryer includes two blowing portions that are respectively located above and below the base cloth.
With reference to the first aspect, in one possible implementation manner, the S60 includes:
s61: respectively covering release paper on two opposite side surfaces of the composite layer, and feeding the release paper into a hot press;
s62: starting the hot press, adjusting to a preset temperature and pressure, and hot press forming.
In a second aspect, the embodiment of the invention further provides an anti-stab garment, a surface layer, a lining layer, a composite protective layer arranged between the surface layer and the lining layer, and buffer foam arranged between the composite protective layer and the lining layer, wherein the composite protective layer comprises a plurality of anti-stab layers, the anti-stab layers are manufactured through the anti-stab layer construction process, and adjacent anti-stab layers are bonded through the adhesive.
Compared with the prior art, the scheme that this application embodiment shows, because prevent thorn layer and make through above-mentioned construction process, the quality is lighter, consequently multilayer prevents that thorn layer after the stack effect is better, and the quality is lighter, wears more comfortablely.
With reference to the second aspect, in one possible implementation manner, the stab-resistant layer is provided with 11-15 layers.
Drawings
FIG. 1 is a schematic cross-sectional view of an anti-penetration layer according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a base fabric according to an embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view of a dispenser according to an embodiment of the present invention;
FIG. 4 is an enlarged schematic view of the portion A in FIG. 3;
fig. 5 is a schematic side view of a dryer according to an embodiment of the present invention.
Reference numerals illustrate:
10-base cloth;
20-a binder;
30-a rigid resin;
40-flexible resin;
50-a frame body; 51-a glue containing groove; 52-an adjusting frame; 53-a material pressing roller;
60-a press roll set; 61-pressing roller; 62-pressing down roller;
70-a dryer; 71-a body; 72, a guide rail; 73-connecting balls; 74-nozzle; 75-heating wires;
80-a material coiling machine.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Referring to fig. 1 to 5, the process for constructing the stab-resistant layer and the stab-resistant garment according to the present invention will now be described. The construction process of the stab-resistant layer comprises the following steps:
s10: mixing an epoxy resin, polyurethane, a curing agent, and an accelerator to form an adhesive 20;
s20: respectively brushing adhesive 20 on two opposite side surfaces of the base cloth 10;
s30: mixing the modified epoxy resin, the modified curing agent, the accelerator, and the first filler to form a rigid resin 30;
s40: mixing an epoxy resin, polyurethane, a modified curing agent, an accelerator, a plasticizer, a toughening agent, and a second filler to form a flexible resin 40;
s50: coating a flexible resin 40 on the adhesive 20 on one side of the base fabric 10, and coating a rigid resin 30 on the adhesive 20 on the other side of the base fabric 10 to form a composite layer;
s60: and putting the composite layer into a hot press for molding to form the stab-resistant layer.
Compared with the prior art, the anti-puncture layer construction process provided by the embodiment has the advantages that the viscosity of the adhesive 20 formed by mixing the epoxy resin, the polyurethane, the curing agent and the accelerator according to the proportion is lower, and the adhesive 20 can be filled in the weaving holes of the base cloth 10 by brushing the adhesive on the two opposite sides of the base cloth 10, so that the porosity is reduced; the outer layer of the base cloth 10 is coated with the rigid resin 30, so that the shearing strength is improved, and the forward advancing prevention function of the sharp instrument is better; by coating the flexible resin 40 on the inner side of the base cloth 10, the damage energy can be absorbed, the part of the base cloth 10 is allowed to deform, the spread and expansion of damage are prevented, and the wearing comfort is improved; the base fabric 10 coated with the adhesive 20, the rigid resin 30 and the flexible resin 40 cooperate to absorb energy together, and the process is simple and convenient to implement and has lower cost.
In some embodiments, a specific implementation of the first filler may adopt the following structure. The first filler is one or more of carbon nano tube, ceramic and carbon fiber. The carbon nano tube, the ceramic or the carbon fiber have the same characteristics: the weight is light and the mechanical properties are good, and by mixing the first filler in the rigid resin 30, the strength after curing can be enhanced, thereby preventing penetration of the sharp instrument.
In some embodiments, a specific implementation of the second filler may adopt the following structure. The second filler is graphene. The graphene has higher strength and better toughness, and when the graphene is mixed into the flexible resin 40 and one side of the rigid resin 30 is subjected to impact force, the impact force is transferred to one layer of the flexible resin 40 and can be buffered, the deformation of the base cloth 10 to a certain extent is adapted, and the base cloth 10 is prevented from being broken to cause injury of a wearer.
In some embodiments, a modified implementation of the above-described toughening agents may employ the following structure. The toughening agent is one or a combination of more of liquid rubber, elastomer and polyimide. The liquid rubber is a viscous liquid with relative molecular mass of about 2000-10000 at room temperature; the elastomer refers to thermoplastic elastomers and various special saturated rubbers which cannot be vulcanized with sulfur; polyimide refers to a polymer with imide ring on the main chain, and is one of organic high polymer materials with optimal comprehensive performance. By adding the toughening agent into the flexible resin 40, the toughness of the flexible resin 40 is improved and the service life is prolonged.
In some embodiments, one specific implementation of the base fabric 10 may adopt the following structure. The base fabric 10 is one of an aramid fiber woven fabric, an ultra-high molecular polyethylene fiber, a carbon fiber, a poly-p-phenylene benzobisoxazole fiber (hereinafter referred to as POB fiber), and a basalt fiber. The base fabric 10 is made of the materials, has certain flexibility, and can gradually absorb energy through deformation by virtue of the excellent static anti-cutting performance and dynamic anti-piercing performance, so that the damage degree of the sharp instrument to a human body is reduced.
In some embodiments, a specific implementation manner of the step S30 may adopt the following structure. The step S30 comprises the following steps:
s31: taking 100 parts of modified epoxy resin, 12-20 parts of curing agent, 1.2-12 parts of accelerator and 0-15 parts of first filler, and uniformly stirring;
s32: and heating to 60-80 ℃, and curing at constant temperature for 2 hours to form the rigid resin 30.
The modified epoxy resin, the curing agent, the accelerator and the first filler are mixed according to the proportion, and the temperature is raised and cured after the moderation is finished, so that the rigidity degree of the rigid resin 30 is improved, the fluidity is weakened after the curing, a certain thickness is formed in the process of brushing on the base cloth 10 conveniently, and the attack of a sharp machine is prevented.
In some embodiments, a specific implementation of the step S20 may adopt a structure as shown in fig. 3. Referring to fig. 3, the step S20 is performed by using a glue spreader, the glue spreader includes a frame 50, and a plurality of press roller sets 60, a dryer 70 and a material winding machine 80 which are sequentially arranged on the frame 50 along the running path of the base cloth 10, the frame 50 is further provided with a glue containing groove 51 positioned in front of the plurality of press roller sets 60, each press roller set 60 includes an upper press roller 61 and a lower press roller 62 which are vertically arranged in parallel, a channel for the base cloth 10 to pass through is formed between the upper press roller 61 and the lower press roller 62, and the dryer 70 includes two blowing portions respectively positioned above and below the base cloth 10.
In the gluing process, the winding machine 80 drives the base cloth 10 to move through rotation, in the moving process, the base cloth 10 is immersed in the glue containing groove 51, so that the adhesive 20 is attached to the upper side surface and the lower side surface of the base cloth 10, when a plurality of press roller groups 60 pass, the adhesive 20 on the base cloth 10 can be uniformly smeared through the combined action of the upper press roller 61 and the lower press roller 62, the adhesive 20 is facilitated to permeate into weaving holes of the base cloth 10, the porosity of the base cloth 10 is effectively reduced, and the service life of the base cloth 10 is prolonged.
In some embodiments, a modified implementation of the aforementioned glue applicator may employ a structure as shown in fig. 3 to 5. Referring to fig. 3 to 4, the dryer 70 includes a body 71, a guide rail 72, and a nozzle 74, wherein a passage for the base cloth 10 to pass through is provided on the body 71; the guide rail 72 is respectively arranged at the top and the bottom of the machine body 71, the extending direction of the guide rail 72 is parallel to the axial direction of the upper press roller 61 or the lower press roller 62 (namely, is respectively perpendicular to the running path and the up-down direction of the base cloth 10), a plurality of connecting balls 73 are arranged on the guide rail 72 and are distributed at intervals along the extending path, and the connecting balls 73 are connected with the guide rail 72 in a sliding manner; the nozzles 74 are arranged in one-to-one correspondence with the connection balls 73 and are ball-jointed with each other, and the nozzles 74 form a blowing part. It can be understood that the guide rail 72 is provided with an air passage communicated with an air source, the connecting ball 73 is provided with an air hole communicated with the air passage, the spray head 74 is communicated with the air hole, when the air source is discharged during the drying process, the spray head 74 sprays air to dry the upper side and the lower side of the base cloth 10, and the curing of the adhesive 20 on the base cloth 10 is realized. In the drying process, the connecting balls 73 can be slidably adjusted on the guide rails 72, the spray heads 74 are rotatably adjusted, the orientation of the spray heads 74 is changed, and the drying efficiency of the base cloth 10 is improved.
Specifically, the air passage of the guide rail 72 is internally provided with the heating wire 75, the air in the air passage of the guide rail 72 can be heated by the heating wire 75, and the drying temperature is controlled within an ideal range by adjusting the temperature of the heating wire 75, so that the drying efficiency is further improved.
In some embodiments, a modified implementation of the aforementioned glue applicator may employ a structure as shown in fig. 3. Referring to fig. 3, the frame 50 is further provided with an adjusting frame 52 and a pressing roller 53, the adjusting frame 52 is provided with a fixing shaft which is adjusted up and down, the pressing roller 53 is sleeved on the fixing shaft and is in running fit, and the pressing roller 53 is located above the glue containing groove 51. After the base cloth 10 is immersed in the glue containing groove 51, the position of the base cloth 10 is limited by the material pressing roller 53 at the top of the base cloth 10, and the depth of the base cloth 10 immersed in the glue containing groove 51 can be adjusted by adjusting the material pressing roller 53 up and down, the material pressing roller 53 rotates along with the base cloth 10 in the moving process of the base cloth 10, so that the adhesive 20 at the top of the base cloth 10 is prevented from being scraped due to friction, and the base cloth is more flexible to use.
In some embodiments, a specific implementation of the step S60 may adopt the following structure. S60 includes:
s61: respectively covering release paper on two opposite side surfaces of the composite layer, and feeding the release paper into a hot press;
s62: starting a hot press, adjusting to a preset temperature and pressure, and hot press forming.
Compared with the existing composite molding of different materials, the different materials need to be molded for multiple times, and the molding process is easy to influence and interfere with each other; the rigid resin 30 and the flexible resin 40 in this embodiment are resin-based materials, although the functions are different, and can be cured and molded at one time at the same temperature and pressure, so that the manufacturing process is simple, and the manufacturing cost is reduced.
Based on the same inventive concept, the embodiment of the application also provides an anti-stab garment, which comprises a surface layer, a lining layer, a composite protective layer arranged between the surface layer and the lining layer, and buffer foam arranged between the composite protective layer and the lining layer, wherein the composite protective layer comprises a plurality of anti-stab layers, the anti-stab layers are manufactured through the anti-stab layer construction process, and the adjacent anti-stab layers are bonded through an adhesive 20.
Compared with the prior art, the stab-resistant clothing provided by the embodiment is light in weight because the stab-resistant layer is manufactured through the construction process, the porosity of each stab-resistant layer is reduced, and the protective performance is improved, so that the effect of the overlapped multi-layer stab-resistant layers is good, the weight is light, and the wearing is more comfortable.
In some embodiments, one specific implementation manner of the stab-resistant clothing may adopt a structure as described below, where the stab-resistant layer is provided with 11-15 layers. Because the porosity in the fiber cloth that traditional anti-thorn material adopted is higher influences the protection effect, consequently want to realize stronger protection effect, traditional fiber cloth need set up more than 18 layers, but the porosity of this structure anti-thorn layer reduces, and barrier propterty improves, can set up 11~15 layers, improves the comfort level of wearing when guaranteeing the protection effect.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (7)
1. The construction process of the stab-resistant layer is characterized by comprising the following steps of:
s10: mixing epoxy resin, polyurethane, a curing agent and an accelerator to form a binder;
s20: respectively brushing the adhesive on the two opposite side surfaces of the base cloth;
s30: mixing a modified epoxy resin, a modified curing agent, an accelerator and a first filler to form a rigid resin;
s40: mixing epoxy resin, polyurethane, a modified curing agent, an accelerator, a plasticizer, a toughening agent and a second filler to form flexible resin;
s50: coating the flexible resin on the adhesive on one side of the base cloth, and coating the rigid resin on the adhesive on the other side of the base cloth to form a composite layer;
s60: placing the composite layer into a hot press for molding to form an anti-puncture layer;
the first filler is one or a combination of more of carbon nano tubes, ceramics and carbon fibers;
the second filler is graphene;
the base cloth is one of aramid fiber woven cloth, ultra-high molecular polyethylene fiber, carbon fiber, poly-p-phenylene benzobisoxazole fiber and basalt fiber.
2. The stab-resistant layer construction process according to claim 1, wherein the toughening agent is one or a combination of more of liquid rubber, elastomer and polyimide.
3. The process for constructing an anti-puncture layer according to claim 1, wherein the step S30 comprises:
s31: taking 100 parts of modified epoxy resin, 12-20 parts of curing agent, 1.2-12 parts of accelerator and 0-15 parts of first filler, and uniformly stirring;
s32: and heating to 60-80 ℃, and curing at constant temperature for 2 hours to form the rigid resin.
4. The stab-resistant layer construction process according to claim 1, wherein the step S20 is performed by using a glue spreader, the glue spreader comprises a frame, and a plurality of press roller groups, a dryer and a material winding machine which are arranged on the frame in sequence along a base cloth running path, the frame is further provided with glue containing grooves positioned in the fronts of the plurality of press roller groups, each press roller group comprises an upper press roller and a lower press roller which are arranged in parallel up and down, a channel for passing the base cloth is formed between the upper press roller and the lower press roller, and the dryer comprises two blowing parts which are respectively positioned above and below the base cloth.
5. The stab-resistant layer construction process according to claim 1, wherein the S60 includes:
s61: respectively covering release paper on two opposite side surfaces of the composite layer, and feeding the release paper into a hot press;
s62: starting the hot press, adjusting to a preset temperature and pressure, and hot press forming.
6. The stab-resistant garment is characterized by comprising a surface layer, an inner layer, a composite protective layer arranged between the surface layer and the inner layer, and buffer foam arranged between the composite protective layer and the inner layer, wherein the composite protective layer comprises a plurality of stab-resistant layers, the stab-resistant layers are manufactured through the stab-resistant layer construction process according to any one of claims 1-5, and adjacent stab-resistant layers are bonded through the adhesive.
7. The stab-resistant garment of claim 6, wherein the stab-resistant layer is provided with 11-15 layers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310113065.6A CN115928455B (en) | 2023-02-15 | 2023-02-15 | Construction process of stab-resistant layer and stab-resistant garment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310113065.6A CN115928455B (en) | 2023-02-15 | 2023-02-15 | Construction process of stab-resistant layer and stab-resistant garment |
Publications (2)
| Publication Number | Publication Date |
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| CN115928455A CN115928455A (en) | 2023-04-07 |
| CN115928455B true CN115928455B (en) | 2023-05-26 |
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| CN202310113065.6A Active CN115928455B (en) | 2023-02-15 | 2023-02-15 | Construction process of stab-resistant layer and stab-resistant garment |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140087125A1 (en) * | 2011-03-25 | 2014-03-27 | Honeywell International Inc. | Durable soft body armor |
| US10323908B2 (en) * | 2015-05-08 | 2019-06-18 | E I Du Pont De Nemours And Company | Ballistic and stab resistant composite |
| CN108058469A (en) * | 2017-12-14 | 2018-05-22 | 东华大学 | A kind of preparation method of anti-stab anti-cutting flexible material |
| CN110641054B (en) * | 2019-09-27 | 2021-11-12 | 东华大学 | Forming method for pressing inorganic particles into softened resin membrane layer by layer, anti-puncturing composite resin sheet and application |
| CN110500918B (en) * | 2019-09-27 | 2021-08-20 | 东华大学 | Micron-scale inorganic powder layer-by-layer composite stepped stab-resistant resin sheet and preparation method and application thereof |
| CN113930053B (en) * | 2021-11-26 | 2024-04-09 | 北京新福润达绝缘材料有限责任公司 | Single-layer aramid fabric product and manufacturing process thereof |
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