Anti-cutting medical surgical glove and preparation method thereof

Abstract

The invention relates to the technical field of medical instruments, and provides an anti-cutting medical surgical glove and a preparation method thereof.The preparation method comprises the steps that S1, according to the shape of a hand, dipping and drying are conducted to form a gum dipping inner layer; s2, the outer surface of the gum dipping inner layer is sleeved with an anti-cutting woven layer; and S3, dipping and drying the outer surface of the anti-cutting woven layer to form a gum dipping outer layer. The impregnated inner layer is formed through impregnation and used for isolating the situation that the woven layer makes direct contact with the hand, and consequently the hand feels scratchy, then the outer surface of the impregnated inner layer is sleeved with the anti-cutting woven layer, the outer surface of the anti-cutting woven layer is impregnated to form the impregnated outer layer, and the impregnated outer layer is connected with the impregnated outer layer through holes of the anti-cutting woven layer; the anti-cutting capability is improved, the clamping stability of the anti-cutting braid layer between the gum dipping inner layer and the gum dipping outer layer is improved, and powder falling is prevented.

Description

Technical Field

[0001] The present invention relates to the field of medical devices, and in particular to cut-resistant medical surgical gloves and a preparation method thereof. Background Art

[0002] During surgery or clinical operation, doctors or nurses need to use scalpels and other instruments to perform treatment. Most surgical instruments are very sharp and can easily cut thin rubber gloves, thereby injuring the doctor's hands.

[0003] In response to this problem, the prior art, such as the patent document with application number CN201521069480.3, discloses a cut-resistant medical surgical glove, whose rubber glove body includes at least two rubber layers, and a fiber protective layer is arranged between the two rubber layers. The fiber protective layer is distributed in the rubber glove body at the middle phalanx and distal phalanx of the five fingers to form a ring-shaped fiber protective layer, which can protect the joints and fingertips of medical staff during surgery. From the above, it can be seen that in its technical solution, finger protection cannot be directly applied to the palm and wrist, that is, only the finger part is protected, and the palm and wrist are not protected during surgery. The medical cut-resistant gloves have defects such as low protection effect and small protection range, and cannot fully meet the medical staff's requirements for hand safety protection during surgery.

[0004] There is also a patent document with publication number CN110236687A, which discloses a surgical cut-resistant glove and a preparation method thereof. The cut-resistant glove comprises an ultra-fine cut-resistant fiber woven inner layer and a rubber-impregnated outer layer. The glove is thin, soft to the touch, and has certain cut-resistant performance. The glove comprises an ultra-fine cut-resistant fiber woven inner layer and a rubber-impregnated outer layer. The thickness of the woven inner layer is 0.03-0.05 mm; the thickness of the rubber-impregnated outer layer is 0.01-0.03 mm. Since the thickness of the rubber layer is only 0.01-0.03 mm, the water-tightness of the glove is difficult to meet the national standard requirements. The fiber woven inner layer and the rubber-impregnated outer layer of the glove are extremely thin, and the feasibility of industrial production is extremely low. In addition, during use, the filler in the cut-resistant fiber (the filler is usually a hard fiber needle-shaped (with a length-to-diameter ratio) powder filler such as carbon fiber, glass fiber, silicon carbide, etc.) has the risk of powdering, which will undoubtedly increase the risk of foreign body contamination during surgery.

[0005] However, the above invention has problems in actual operation. After the gloves are put on, due to the presence of the fiber protective layer, the gloves and the fingers will not fit well together. At the same time, the gloves are airtight and are prone to sweating during long-term surgical operations, which further reduces the fit between the gloves and the fingers, affecting the accuracy of the surgical operation. At this time, if the fiber protective layer directly adheres to the fingers, it will also cause a tingling sensation in the fingers. At the same time, there is a risk of powdering of the filler in the anti-cutting fiber during use, which affects the accuracy and safety of the surgical operation and the chance of contamination. Summary of the invention

[0006] In order to solve the problem that the current gloves have poor fit, if the fiber protective layer directly adheres to the fingers, it will also cause a tingling sensation on the fingers, and there is a risk of fillers in the cut-resistant fibers falling off during use, the present invention provides a cut-resistant medical surgical glove and a preparation method thereof to solve the above problems.

[0007] The method for preparing cut-resistant medical surgical gloves comprises:

[0008] S1, dipping and drying according to the shape of the hand to form a dipped inner layer;

[0009] S2. A cut-resistant braided layer is sheathed on the outer surface of the dipped inner layer;

[0010] S3, dipping and drying the outer surface of the anti-cutting braided layer to form a dipped outer layer to obtain the anti-cutting medical surgical gloves.

[0011] The present invention forms a dipped inner layer by dipping to isolate the anti-cutting braided layer from direct contact with the hand, thereby causing an itchy feeling on the hand; then the anti-cutting braided layer is put on the outer surface of the dipped inner layer; the outer surface of the anti-cutting braided layer is dipped to form a dipped outer layer; the dipped outer layer is connected to the dipped outer layer through the pores of the anti-cutting braided layer, thereby improving the anti-cutting ability, increasing the stability of the anti-cutting braided layer clamped between the dipped inner layer and the dipped outer layer, and preventing powder from falling off.

[0012] In some embodiments of the present invention, step S1 comprises:

[0013] Dip the hand mold;

[0014] After the impregnation is completed, the pre-drying, glue throwing, glue leveling and drying operations are carried out in sequence;

[0015] After drying is completed, the dipped inner layer is obtained.

[0016] In some embodiments of the present invention, step S2 comprises:

[0017] The anti-cutting braided layer is sleeved on the outer surface of the rubber-impregnated inner layer. During the sleeve process, the anti-cutting braided layer is expanded and stretched to expand the pores on the surface of the anti-cutting braided layer.

[0018] Preferably, the porosity of the cut-resistant braided layer sleeved on the outer surface of the dipped rubber inner layer is 62-78%.

[0019] In some embodiments of the present invention, step s2 comprises:

[0020] Preparation of coated yarn: using 20-40D spandex and 30-100D cut-resistant UHMWPE fiber as raw materials for coating to obtain coated yarn; preferably, the twist direction is Z twist or S twist, the twist is 150-220 twists / m, and the pull ratio is 1.7-2.0;

[0021] Braided covered yarn: The covered yarn is braided using a glove braiding machine to obtain a cut-resistant braided layer.

[0022] Preferably, the glove knitting machine is a 21-needle glove knitting machine.

[0023] In some embodiments of the present invention, the coated yarn comprises, by mass percentage:

[0024] Cut-resistant UHMWPE fiber 82-95%;

[0025] Spandex 5-18%.

[0026] Preferably, the cut-resistant UHMWPE fiber comprises UHMWPE fiber, an antibacterial agent and a cut-resistant modified material;

[0027] Preferably, the antibacterial agent is graphene; further preferably, the particle size of the graphene is in the range of 10-40 μm;

[0028] Preferably, the anti-cutting modified material comprises one or more of glass fiber powder, carbon fiber powder, basalt fiber powder and silicon carbide powder;

[0029] Preferably, the mass proportion of the antibacterial agent in each component of the cut-resistant UHMWPE fiber is 0.1%-1%;

[0030] Preferably, the mass proportion of the cut-resistant modified material in each component of the cut-resistant UHMWPE fiber is 6%-32%;

[0031] Preferably, the anti-cutting modified material has a diameter ranging from 0.5 to 10 μm, a length ranging from 20 to 200 μm, and an aspect ratio ranging from 4 to 40.

[0032] In some embodiments of the present invention, the thickness of the anti-cutting braided layer is 0.05-0.3 mm; the thickness of the rubber-impregnated inner layer and the rubber-impregnated outer layer are both 0.08-0.12 mm.

[0033] In some embodiments of the present invention, the material of the dipped inner layer and the dipped outer layer is rubber, and the rubber is at least one of nitrile, natural latex and PVC.

[0034] The present invention also provides cut-resistant medical surgical gloves, which include a cut-resistant braided layer and a rubber-impregnated inner layer and a rubber-impregnated outer layer respectively arranged on the inner and outer sides of the cut-resistant braided layer. The cut-resistant braided layer is woven according to the shape of the hand and is made of coated yarn.

[0035] The present invention forms a dipped inner layer by dipping, wherein the dipped inner layer isolates the anti-cutting braided layer from direct contact with the hand, thereby causing a tingling sensation on the hand, and prevents the filler in the anti-cutting fiber from falling off during use; then the anti-cutting braided layer is stretched and covered on the outer surface of the dipped inner layer, and a large number of pores are present between the fibers of the stretched braided layer; then the outer surface of the braided layer is dipped to form a dipped outer layer, and the dipped outer layer is tightly bonded to the dipped inner layer through the pores inside the braided layer, thereby obtaining a composite glove in which the inner and outer layers are connected and the braided layer fibers are sandwiched in the middle, so that the glove has a cutting resistance capability.

[0036] The anti-cutting braided layer of the present invention contains graphene, so that the gloves also have antibacterial ability. Its anti-cutting ability enables the anti-cutting medical protective gloves of the present invention to play a certain protective role in the safety of the hands of medical staff in surgery, dressing changes, injections and other scenarios, especially helping to reduce the probability of medical staff being stabbed or cut by sharp objects during surgery. In addition, the gloves are light and thin, soft to the touch, low in thickness, good in fit, high in protective effect, and wide in protective range, which greatly reduces the impact on the accuracy of surgical operations and alleviates the restrictions on the operating behavior of medical staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0038] Figure 1 It is a schematic flow chart of an embodiment of a method for preparing the cut-resistant medical surgical gloves of the present invention;

[0039] Figure 2 1 is a schematic diagram of the layer structure of an embodiment of the cut-resistant medical surgical gloves of the present invention;

[0040] Figure numerals: 1. Rubber-impregnated inner layer; 2. Anti-cut braided layer; 3. Rubber-impregnated outer layer. DETAILED DESCRIPTION

[0041] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0042] In view of the defects of the prior art, the purpose of the present invention is to provide a cut-resistant medical surgical glove and a preparation method thereof. The cut-resistant medical surgical glove is a medical protective glove with both antibacterial and cut-resistant capabilities, which can play a certain protective role in the safety of the hands of medical staff during surgery, dressing changes, injections and other scenarios, and is especially helpful in reducing the chance of medical staff being stabbed or cut by sharp objects during surgery.

[0043] Figure 1 1 is a schematic flow chart of an embodiment of a method for preparing the cut-resistant medical surgical gloves of the present invention. Figure 2 FIG. 1 is a schematic diagram of the layer structure of an embodiment of the cut-resistant medical surgical gloves of the present invention. Figure 1 and Figure 2 As shown, the preparation method of the cut-resistant medical surgical gloves comprises:

[0044] S1, dipping and drying according to the shape of the hand to form a dipped inner layer 1;

[0045] S2, sleeve the anti-cutting braided layer 2 on the outer surface of the dipped inner layer;

[0046] S3, dipping and drying the outer surface of the anti-cutting braided layer to form a dipped outer layer 3, thereby obtaining the anti-cutting medical surgical gloves.

[0047] The present invention forms a dipped inner layer by dipping and drying, and the dipped inner layer is used to isolate the braided layer from direct contact with the hand, thereby causing a tingling sensation on the hand, and prevents the filler in the anti-cut fiber from falling off during use. Then the anti-cut braided layer is stretched and put on the outer surface of the dipped inner layer, and there are a large number of pores between the fibers of the stretched anti-cut braided layer. Then the outer surface of the anti-cut braided layer is dipped and dried to form a dipped outer layer, and the dipped outer layer is tightly bonded to the dipped inner layer through the pores inside the anti-cut braided layer, thereby obtaining a composite glove in which the inner and outer layers are connected and the braided layer fibers are sandwiched in the middle. The gloves are medical protective gloves with anti-cutting ability, which can play a certain protective role in the safety of the hands of medical staff in surgery, dressing changes, injections and other scenes, and are particularly helpful in reducing the probability of medical staff being stabbed or cut by sharp objects during surgery. In addition, the gloves are light and thin, soft to the touch, low in thickness, good in fit, high in protective effect, and wide in protective range, which greatly reduces the impact on the accuracy of surgical operations and alleviates the restrictions on the operating behavior of medical staff.

[0048] At the same time, the method of impregnated inner layer + impregnated outer layer is mainly to sandwich the anti-cut fabric in the middle to prevent the modified materials in the fabric from contacting the patient's wound during use. The woven layer mainly plays a reinforcing role in the entire product, which can improve the product's anti-cut performance and solve the problem that ordinary disposable surgical gloves have no cut resistance.

[0049] In some embodiments of the present invention, step S1 comprises:

[0050] S11, dipping the hand mold;

[0051] S12, after the impregnation is completed, pre-drying, glue spinning, glue leveling and drying operations are performed in sequence;

[0052] S13, after drying is completed, the dipped inner layer is obtained.

[0053] In some embodiments of the present invention, in step S12, the pre-drying temperature is 40-60°C, and the pre-drying time is 0.5h; the drying temperature is 90-100°C, and the drying time is 0.5h. The above pre-drying and drying parameters improve the elasticity of the dipped inner layer.

[0054] In some embodiments of the present invention, step S2 comprises:

[0055] S21. Preparation of coated yarn: 20-40D spandex and 30-100D cut-resistant UHMWPE fiber are used as raw materials for coating to obtain coated yarn, wherein the raw materials include 20-40D spandex, and the elasticity of the fabric is better within the parameter range of 20-40D. If the spandex is too thick, the fabric thickness will increase, and if the spandex is too thin, the fabric thickness will be low, which will easily lead to the phenomenon of fabric breaking; the raw materials include 30-100D cut-resistant UHMWPE fiber, and the fabric has a certain cut-resistant function within the parameter range of 30-100D. The cut-resistant UHMWPE fiber Too thick will affect the thickness of the fabric and the wearing comfort of the finished product. If the cut-resistant UHMWPE fiber is too thin, the cut-resistant effect will be low. The coated yarn prepared with 20-40D spandex and 30-100D cut-resistant UHMWPE fiber as raw materials has a certain cut-resistant function and is as light and thin as possible. Preferably, the twist direction is Z twist or S twist, the twist is 150-220 twists / m, and the pull ratio is 1.7-2.0. The fabric has good elasticity when the pull ratio is within the range of 1.7-2.0. If the pull ratio is less than the above range, the elasticity will be too poor. If the pull ratio is greater than the above range, the fabric density will be too large.

[0056] S22, knitting the coated yarn prepared in step S21 using a glove knitting machine to obtain a cut-resistant knitted layer;

[0057] Step S23, sleeve the anti-cutting braided layer on the outer surface of the dipped inner layer.

[0058] In some embodiments of the present invention, the coated yarn prepared in step S21 comprises the following components in percentage by weight:

[0059] Cut-resistant UHMWPE fiber 82-95%;

[0060] Spandex 5-18%.

[0061] The coated yarn of the invention comprises 82-95% of cut-resistant UHMWPE fiber and 5-18% of spandex, so as to ensure the lightness and thinness of the product without affecting the cut-resistant ability and elasticity.

[0062] In some embodiments of the present invention, the cut-resistant UHMWPE fiber comprises UHMWPE.

[0063] The above-mentioned cut-resistant UHMWPE fiber can be selected from the UHMWPE fiber disclosed in the patent document with application number CN202010728334.6 and patent name “A resin-free soft stab-proof material”.

[0064] In some embodiments of the present invention, the cut-resistant UHMWPE fiber further comprises an antibacterial agent and a cut-resistant modified material.

[0065] In some embodiments of the present invention, the antimicrobial agent is graphene.

[0066] Preferably, the graphene particle size range is 10-40 μm, which is the optimal range for balancing antibacterial, anti-cutting effects and production costs. If the particle size is too small, the anti-cutting, antibacterial and other effects of the product will decrease, and there will be problems with dispersion difficulties during the production process; if the particle size is too large, it will affect the production of the fiber, and if the additives are too large, it will affect the spinning process and increase the frequency of fiber breakage.

[0067] In some embodiments of the present invention, the mass proportion of the antibacterial agent in each component of the cut-resistant UHMWPE fiber is 0.1%-1%, and this mass proportion range is the optimal range of the balance between the antibacterial effect and the cost of the antibacterial agent. If the mass proportion of the antibacterial agent is too small, the antibacterial performance is poor, and if the mass proportion of the antibacterial agent is too large, the cost is too high.

[0068] The invention adopts pure physical antibacterial, does not contain antibacterial substances such as heavy metals and organic substances, and maintains an antibacterial effect of more than 99% on bacteria, fungi, etc.

[0069] In some embodiments of the present invention, the anti-cutting modified material is a combination of one or more components selected from glass fiber powder, carbon fiber powder, basalt fiber powder and silicon carbide powder.

[0070] In some embodiments of the present invention, the anti-cut modified material is a needle-shaped object with an aspect ratio. Preferably, the diameter range of the anti-cut modified material is 0.5-10 μm, the length range is 20-200 μm, and the aspect ratio range is 4-40. Within the above aspect ratio range, the coated yarn has the best anti-cut performance. Too small an aspect ratio will reduce the anti-cut performance, and too high an aspect ratio will affect the spinning process and increase the frequency of wire breakage.

[0071] In some embodiments of the present invention, the mass proportion of the anti-cut modified material in the various components of the cut-resistant UHMWPE fiber is 6%-32%. When the anti-cut modified material is within the above mass proportion range, the cut-resistant performance of the coated yarn is best. If the mass proportion of the anti-cut modified material is too small, the cut-resistant performance will be reduced. If the mass proportion of the anti-cut modified material is too high, the frequency of wire breakage will be too high, and industrial production cannot be carried out.

[0072] In some embodiments of the present invention, the glove knitting machine used in step S22 is a 21-needle glove knitting machine.

[0073] In some embodiments of the present invention, in step S23, the anti-cutting braided layer is expanded and stretched during the sheathing process, and the pores on the surface of the braided layer are pulled to expand so that the impregnated outer layer is connected to the impregnated inner layer through the pores on the surface of the anti-cutting braided layer.

[0074] Preferably, the porosity of the anti-cut braided layer sleeved on the outer surface of the dipped inner layer is 62-78%, and the dipped inner layer can be seen through the uniform pores. The porosity of the anti-cut braided layer is within the above range, and the dipped inner and outer layers can be combined through the pores. If the porosity is too low, the inner and outer layers are not firmly combined, affecting the impermeability, and in severe cases, local stratification may even occur; if the porosity is too high, the anti-cutting performance will be reduced.

[0075] In some embodiments of the present invention, step S3 includes:

[0076] S31, dipping a hand mold provided with a cut-resistant braided layer;

[0077] S32, after the impregnation is completed, pre-drying, glue throwing, glue leveling and drying operations are performed in sequence. Preferably, pre-drying is performed at 40-60°C, and the pre-drying time is 0.5h; the drying temperature is 100-115°C, and the drying time is 60-100min. Part of the impregnation enters the pores of the anti-cutting braided layer. In order to ensure the degree of dryness, the drying temperature of the outer layer of the impregnation is higher than the drying temperature of the inner layer of the impregnation;

[0078] S33, after drying is completed, the dipped outer layer is obtained.

[0079] In some embodiments of the present invention, the thickness of the anti-cut woven layer is 0.05-0.3mm, and the fabric is light and thin within this thickness range, and has certain anti-cut performance; the thickness of the dipped inner layer and the dipped outer layer are both 0.08-0.12mm, and the fabric is light and thin within this thickness range, and can meet the impermeability requirements.

[0080] In some embodiments of the present invention, the rubber-impregnated inner layer and the rubber-impregnated outer layer are both made of rubber, and the rubber is at least one of nitrile, natural latex and PVC.

[0081] In one embodiment of the present invention, a method for preparing cut-resistant medical surgical gloves comprises:

[0082] After the hand mold is dipped in rubber, it is pre-dried, spun, leveled and dried to form a dipped inner layer. The pre-drying is carried out at 40-60°C for 0.5h, and then the temperature is raised to 90-100°C for drying for 0.5h. In this range, the elasticity and other properties of the rubber layer are the best;

[0083] The cut-resistant braided layer is stacked on the outer surface of the dipped inner layer. When stacked, the cut-resistant braided layer expands and stretches to form a large number of pores with a porosity of 62-78%. The dipped inner layer can be seen through the uniform pores.

[0084] After the outer surface of the cut-resistant braided layer is impregnated with rubber, pre-drying, spinning, leveling and drying are performed to form a rubber-impregnated outer layer, and the rubber-impregnated outer layer is tightly bonded to the rubber-impregnated inner layer through the pores inside the braided layer, thereby obtaining a composite glove with inner and outer rubber layers connected and the braided layer fiber sandwiched in the middle, wherein the pre-drying is performed at 40-60°C and the pre-drying time is 0.5h; the drying temperature is 100-115°C and the drying time is 60-100min.

[0085] The present invention forms a rubber-impregnated inner layer by impregnating rubber, which is used to isolate the braided layer from direct contact with the hand, thereby causing itching on the hand, and prevents the anti-cutting material from falling during use and causing wound infection.

[0086] The gloves prepared by the present invention are medical protective gloves with antibacterial and anti-cutting capabilities, which can play a certain protective role in the hand safety of medical staff in surgery, wound treatment, dressing changes, injections and other scenarios, and are especially helpful in reducing the chances of medical staff being stabbed or cut by sharp objects during surgery.

[0087] The cut-resistant medical surgical gloves prepared by the present invention are light, thin, soft to the touch, low in thickness, good in fit, high in protective effect, and wide in protective range, which greatly reduce the impact on the accuracy of surgical operations and alleviate the restrictions on the operating behaviors of medical staff.

[0088] In a preferred embodiment of the present invention, the process route of the preparation method of the cut-resistant medical surgical gloves is: first rubber dipping - first drying - cut-resistant knitted gloves compounding - second rubber dipping - second drying - demoulding, specifically, comprising:

[0089] (1) Prepare the nitrile latex required for dipping, and the latex viscosity is 4500mpa.s;

[0090] (2) Under normal temperature conditions, immerse the ceramic hand model into the prepared nitrile latex, the normal temperature is 25-28° C., and the immersion is performed by full immersion for 3-5 seconds. After the immersion is completed, the glue is spun and evenly spread;

[0091] (3) After the glue is evenly coated, it is sent to an oven for drying. First, it is dried at 40-60°C for 0.5h, and then the temperature is raised to 90-100°C for 0.5h to obtain a dipped inner layer;

[0092] (4) Preparing a cut-resistant braided layer, comprising:

[0093] (41) preparing coated yarn: using 20-40D spandex and cut-resistant UHMWPE fiber as raw materials for coating, with a twist direction of Z twist or S twist, a twist of 150-220 twists / m, and a pull ratio of 1.7-2.0;

[0094] (42) The coated yarn prepared in step (41) is knitted using a 21-needle glove knitting machine to obtain the cut-resistant knitted layer.

[0095] (5) Expand and overlap the anti-cutting braided layer obtained in step (42) on the outer surface of the dipped inner layer obtained in step (3), and the porosity is 62-78%.

[0096] (6) Under normal temperature conditions, the ceramic hand model with the stacked anti-cutting braided layer is immersed in nitrile latex at a room temperature of 25-28° C. The immersion is performed by full immersion for 3-5 seconds. After the immersion is completed, the glue is spun and evenly applied;

[0097] (7) After the glue is evenly coated, it is sent to an oven for drying. First, it is dried at 40-60°C for 0.5h, and then the temperature is raised to 100-115°C for 60-100min to obtain the outer layer of the dipped glue.

[0098] The present invention also provides a cut-resistant medical surgical glove prepared by the preparation method of each of the above embodiments, such as Figure 2 As shown, the cut-resistant medical surgical gloves include a cut-resistant braided layer 2 and a rubber-impregnated inner layer 1 and a rubber-impregnated outer layer 3 respectively arranged on the inner and outer sides of the cut-resistant braided layer 2. The cut-resistant braided layer 2 is woven with coated yarn according to the shape of the hand.

[0099] In some embodiments of the present invention, the thickness of the anti-cut woven layer is 0.05-0.3mm, and the fabric is light and thin within this thickness range, and has certain anti-cut performance; the thickness of the dipped inner layer and the dipped outer layer are both 0.08-0.12mm, and the fabric is light and thin within this thickness range, and can meet the impermeability requirements.

[0100] In some embodiments of the present invention, the rubber-impregnated inner layer and the rubber-impregnated outer layer are both made of rubber, and the rubber is at least one of nitrile, natural latex and PVC.

[0101] The present invention adopts ultrafine fiber anti-cutting yarn to weave as a braided layer, and uses a dipped layer as an inner and outer layer to form a composite medical surgical protective glove. After the dipped inner layer fits the finger, the rubber has elasticity and can fully fit, thereby solving the problems of high thickness and poor fit of the existing medical surgical protective gloves. The existence of the dipped inner layer will not cause itching problems. At the same time, the dipped inner layer and the dipped outer layer can clamp the anti-cutting modified material to prevent the anti-cutting modified material from falling off, thereby solving the problems of low protective effect and small protective range of the medical gloves in the prior art.

[0102] The beneficial effects of the present invention are described in detail below through some specific embodiments.

[0103] Example 1

[0104] The preparation method of the cut-resistant medical surgical gloves of this embodiment includes:

[0105] Preparation of cut-resistant UHMWPE fiber:

[0106] 0.04kg of graphene, 0.8kg of carbon fiber powder, and 0.24kg of silicon carbide powder were added to 6.08kg of white oil for premixing, and then added to the swelling kettle containing 85.92kg of white oil. After being fully stirred, 6.92kg of ultra-high molecular weight polyethylene fiber powder was added, and the swelling kettle temperature was raised to 110°C and kept warm for 1.5h. Then, it was extruded from 110°C to 275°C in a stepwise manner through the intermediate kettle, feeding kettle, and twin-screw extruder to make it molten, and then flowed through the metering pump (24rpm). After being evenly metered, it was hydrogelled and cooled into frozen gel filaments. After being left to stand at room temperature for 24h, the frozen gel filaments were subjected to primary stretching, extraction, drying, and 3-stage super-double heat drawing. The temperature was: 143°C for the first-stage drawing hot box, 144°C for the second-stage drawing hot box, and 145°C for the third-stage drawing hot box, and 50D anti-cut UHMWPE fiber was obtained.

[0107] Among them, the graphene particle size range is 15-25μm; the carbon fiber powder is a needle-shaped object with an aspect ratio, with a diameter of 9μm and a main body length of 40-100μm; the silicon carbide is whisker-shaped, with a diameter of 3μm and a length of 15-40μm.

[0108] Preparation of covered yarn:

[0109] 20D spandex is used as the lower support material, and 50D cut-resistant UHMWPE fiber is used as the outer covering material for coating, with a twist direction of Z twist, a twist of 180 twists / m, and a pull ratio of 1.8, so as to obtain a coated yarn of cut-resistant UHMWPE fiber, in which the cut-resistant UHMWPE fiber accounts for 86% and spandex accounts for 14%;

[0110] Preparation of cut-resistant braid:

[0111] The coated yarn is knitted using a 21-needle glove knitting machine to prepare a cut-resistant braided layer. The knitting parameters are as follows:

[0112] Table 1

[0113]

[0114] The single-layer thickness of the obtained cut-resistant braided layer was 0.2 mm.

[0115] Preparation of finished dipped cut-resistant medical surgical gloves:

[0116] The nitrile latex required for dipping was prepared, and the latex viscosity was 4500mpa.s.

[0117] The dipping is carried out by full dipping, the dipping time is 5s, and after the dipping is completed, the glue is spun and evenly spread.

[0118] After the hand mold is impregnated, it is pre-dried, and the glue is spun, spread and dried. The pre-drying is carried out at 50°C for 0.5h, and then the temperature is raised to 100°C for drying for 0.5h to obtain the impregnated inner layer. The thickness of the obtained impregnated inner layer is 0.1mm.

[0119] The anti-cutting braided layer is put on the outer surface of the dipped inner layer. When overlapping, the braided layer expands and stretches to form a large number of pores with a porosity of 65%. The dipped inner layer can be seen through the uniform pores. Then the secondary dip is carried out, and the dip method adopts 3 / 4 dip. Then the glue is spun, leveled and dried. First, pre-drying is carried out at 50°C for 0.5h, and then the temperature is raised to 110°C for 1h to obtain the dipped outer layer. The thickness of the obtained dipped outer layer (the thickness from the surface of the braided layer to the surface of the dipped outer layer) is 0.1mm.

[0120] Example 2

[0121] The preparation method of the cut-resistant medical surgical gloves of this embodiment includes:

[0122] Preparation of cut-resistant UHMWPE fiber:

[0123] 0.08kg of graphene and 1.36kg of carbon fiber powder were added to 9.5kg of white oil for premixing, and then added to the swelling kettle containing 85.92kg of white oil. After being fully stirred, 6.56kg of ultra-high molecular weight polyethylene fiber powder was added, and the swelling kettle temperature was raised to 110°C and kept warm for 1.5h. Then, it was extruded from 110°C to 275°C in a step-by-step manner through the intermediate kettle, feeding kettle, and twin-screw extruder to make it molten, and then flowed through the metering pump (24rpm). After being evenly metered, it was hydrogelled and cooled into frozen gel filaments. After being left to stand at room temperature for 24h, the frozen gel filaments were subjected to primary stretching, extraction, drying, and 3-stage super-double heat drawing. The temperature was: 143°C for the first-stage drawing hot box, 144°C for the second-stage drawing hot box, and 145°C for the third-stage drawing hot box, and 100D anti-cut UHMWPE fiber was obtained.

[0124] The graphene particle size ranges from 15 to 25 μm; the carbon fiber powder is a needle-shaped object with an aspect ratio, a diameter of 9 μm, and a main body length of 60 to 110 μm.

[0125] Preparation of covered yarn:

[0126] 20D spandex is used as the lower support material, and 100D cut-resistant UHMWPE fiber is used as the outer covering material for coating, with a twist direction of Z twist, a twist of 180 twists / m, and a pull ratio of 2, so as to obtain a coated yarn of cut-resistant UHMWPE fiber, wherein the cut-resistant UHMWPE fiber accounts for 90% and spandex accounts for 10%;

[0127] Preparation of cut-resistant braid:

[0128] The coated yarn was knitted using a 21-needle glove knitting machine to obtain a cut-resistant braided layer, and the knitting parameters are shown in Table 1;

[0129] The single-layer thickness of the obtained cut-resistant braided layer was 0.24 mm.

[0130] Preparation of cut-resistant medical surgical gloves:

[0131] Prepare the nitrile latex required for dipping, the latex viscosity is 4500mpa.s;

[0132] The dipping is carried out by full dipping, the dipping time is 5s, and after the dipping is completed, the glue is spun and leveled;

[0133] After the hand mold is impregnated, it is pre-dried, and the glue is spun, spread and dried. The pre-drying is carried out at 50°C for 0.5h, and then the temperature is raised to 100°C for drying for 0.5h to obtain the impregnated inner layer. The thickness of the obtained impregnated inner layer is 0.1mm.

[0134] The anti-cutting braided layer is put on the outer surface of the dipped inner layer. When overlapping, the braided layer expands and stretches to form a large number of pores with a porosity of 72%. The dipped inner layer can be seen through the uniform pores. Then the secondary dipping is carried out, and the dipping method adopts 3 / 4 dipping. Then the glue is spun, leveled and dried. First, pre-drying is carried out at 50°C for 0.5h, and then the temperature is raised to 110°C for drying for 1h to obtain the dipped outer layer. The thickness of the obtained dipped outer layer (the thickness from the surface of the braided layer to the surface of the dipped outer layer) is 0.1mm.

[0135] Comparative Example 1

[0136] The preparation method of the cut-resistant medical surgical gloves of this comparative example comprises:

[0137] Preparation of cut-resistant UHMWPE fiber:

[0138] 0.04kg of graphene, 0.8kg of carbon fiber powder, and 0.24kg of silicon carbide powder were added to 6.08kg of white oil for premixing, and then added to the swelling kettle containing 85.92kg of white oil. After being fully stirred, 6.92kg of ultra-high molecular weight polyethylene fiber powder was added, and the swelling kettle temperature was raised to 110°C and kept warm for 1.5h. Then, it was extruded from 110°C to 275°C in a stepwise manner through the intermediate kettle, feeding kettle, and twin-screw extruder to make it molten, and then flowed through the metering pump (24rpm). After being evenly metered, it was hydrogelled and cooled into frozen gel filaments. After being left to stand at room temperature for 24h, the frozen gel filaments were subjected to primary stretching, extraction, drying, and 3-stage super-double heat drawing. The temperature was: 143°C for the first-stage drawing hot box, 144°C for the second-stage drawing hot box, and 145°C for the third-stage drawing hot box, and 50D anti-cut UHMWPE fiber was obtained.

[0139] Among them, the graphene particle size range is 15-25μm; the carbon fiber powder is a needle-shaped object with an aspect ratio, with a diameter of 9μm and a main body length of 40-100μm; the silicon carbide powder is whisker-shaped, with a diameter of 3μm and a length of 15-40μm.

[0140] Preparation of covered yarn:

[0141] 20D spandex is used as the lower support material, and 50D cut-resistant UHMWPE fiber is used as the outer covering material for coating, with a twist direction of Z twist, a twist of 180 twists / m, and a pull ratio of 1.8, so as to obtain a coated yarn of cut-resistant UHMWPE fiber, in which the cut-resistant UHMWPE fiber accounts for 86% and spandex accounts for 14%;

[0142] Preparation of cut-resistant braid:

[0143] The coated yarn is knitted using a 21-needle glove knitting machine to obtain a cut-resistant braided layer. The knitting parameters are as follows:

[0144] Table 2

[0145]

[0146] The single-layer thickness of the obtained cut-resistant braided layer was 0.2 mm.

[0147] Preparation of cut-resistant medical surgical gloves:

[0148] The nitrile latex required for dipping was prepared, and the latex viscosity was 4500mpa.s.

[0149] The dipping is carried out by full dipping, the dipping time is 5s, and after the dipping is completed, the glue is spun and evenly spread.

[0150] After the hand mold is impregnated, it is pre-dried, and the glue is spun, spread and dried. First, it is pre-dried at 50°C for 0.5h, and then the temperature is raised to 100°C for drying for 0.5h to obtain the impregnated inner layer. The thickness of the obtained impregnated inner layer is 0.1mm.

[0151] Then, the anti-cutting braided layer is put on the outer surface of the dipped inner layer. When overlapping, the braided layer expands and stretches to form a large number of pores with a porosity of 60%. The dipped inner layer can be seen through the uniform pores. Then, a secondary dip is performed, and the dipping method is 3 / 4 dip. Then, the glue is spun, leveled and dried. First, pre-drying is performed at 50°C for 0.5h, and then the temperature is raised to 110°C for drying for 1h to obtain the dipped outer layer. The thickness of the obtained dipped outer layer (the thickness from the surface of the braided layer to the surface of the dipped outer layer) is 0.1mm.

[0152] Comparative Example 2

[0153] The preparation method of the cut-resistant medical surgical gloves of this comparative example comprises:

[0154] Preparation of cut-resistant UHMWPE fiber:

[0155] 0.04kg of graphene, 0.8kg of carbon fiber powder, and 0.24kg of silicon carbide powder were added to 6.08kg of white oil for premixing, and then added to the swelling kettle containing 85.92kg of white oil. After being fully stirred, 6.92kg of ultra-high molecular weight polyethylene fiber powder was added, and the swelling kettle temperature was raised to 110°C and kept warm for 1.5h. Then, it was extruded from 110°C to 275°C in a stepwise manner through the intermediate kettle, feeding kettle, and twin-screw extruder to make it molten, and then flowed through the metering pump (24rpm). After being evenly metered, it was hydrogelled and cooled into frozen gel filaments. After being left to stand at room temperature for 24h, the frozen gel filaments were subjected to primary stretching, extraction, drying, and 3-stage super-double heat drawing. The temperature was: 143°C for the first-stage drawing hot box, 144°C for the second-stage drawing hot box, and 145°C for the third-stage drawing hot box, and 50D anti-cut UHMWPE fiber was obtained.

[0156] Among them, the graphene particle size range is 15-25μm; the carbon fiber powder is a needle-shaped object with an aspect ratio, with a diameter of 9μm and a main body length of 40-100μm; the silicon carbide powder is whisker-shaped, with a diameter of 3μm and a length of 15-40μm.

[0157] Preparation of covered yarn:

[0158] 20D spandex is used as the lower support material, and 50D cut-resistant UHMWPE fiber is used as the outer covering material for coating, with a twist direction of Z twist, a twist of 180 twists / m, and a pull ratio of 1.8, so as to obtain a coated yarn of cut-resistant UHMWPE fiber, in which the cut-resistant UHMWPE fiber accounts for 86% and spandex accounts for 14%;

[0159] Preparation of cut-resistant braid:

[0160] The coated yarn is knitted using a 21-needle glove knitting machine to obtain a cut-resistant braided layer. The knitting parameters are as follows:

[0161] Table 3

[0162]

[0163] The single-layer thickness of the obtained cut-resistant braided layer was 0.2 mm.

[0164] Preparation of antibacterial and anti-cutting gloves:

[0165] The nitrile latex required for dipping was prepared, and the latex viscosity was 4500mpa.s.

[0166] The dipping is carried out by full dipping, the dipping time is 5s, and after the dipping is completed, the glue is spun and evenly spread.

[0167] After the hand mold is impregnated, it is pre-dried, and the glue is spun, spread and dried. First, it is pre-dried at 50°C for 0.5h, and then the temperature is raised to 100°C for drying for 0.5h to obtain the impregnated inner layer. The thickness of the obtained impregnated inner layer is 0.1mm.

[0168] Then, the anti-cutting braided layer is put on the outer surface of the dipped inner layer. When overlapping, the braided layer expands and stretches to form a large number of pores with a porosity of 81%. The dipped inner layer can be seen through the uniform pores. Then, a secondary dip is performed, and the dipping method is 3 / 4 dip. Then, the glue is spun, leveled and dried. First, pre-drying is performed at 50°C for 0.5h, and then the temperature is raised to 110°C for drying for 1h to obtain the dipped outer layer. The thickness of the obtained dipped outer layer (the thickness from the surface of the braided layer to the surface of the dipped outer layer) is 0.1mm.

[0169] The product properties of the cut-resistant medical surgical gloves obtained in the above Examples 1-4 are shown in the following table:

[0170] Table 5

[0171]

[0172] The cut-resistant medical surgical gloves prepared in the above-mentioned Examples 1 and 2 do not contain coliform bacteria and pathogenic pyogenic bacteria, have a small total number of fungal colonies and a small total number of bacterial colonies, have excellent antibacterial properties, and the cut-resistant properties reach above level A1, and the liquid tightness tests are all qualified; in Comparative Example 1, the porosity of the cut-resistant braided layer after sheathing is too small, the bonding between the dipped outer layer and the dipped inner layer is not firm, and the liquid tightness test is unqualified; in Comparative Example 2, the porosity of the cut-resistant braided layer after sheathing is too large, resulting in the cut-resistant performance of the cut-resistant medical surgical gloves being less than level A1.

[0173] The cut-resistant medical surgical gloves prepared in Example 1 and Example 2 were tried on by multiple people and performed related surgical operations. The wearing comfort was good and did not affect the normal operation of personnel. The cut-resistant medical surgical gloves prepared in Comparative Example 1 were tried on by multiple people and performed related surgical operations. The wearing comfort was poor and affected the normal operation of personnel.

[0174] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0175] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A method for preparing cut-resistant medical surgical gloves, characterized in that: include: S1, dipping and drying according to the shape of the hand to form a dipped inner layer; S2. A cut-resistant braided layer is sheathed on the outer surface of the dipped inner layer; S3, dipping and drying the outer surface of the anti-cutting braided layer to form a dipped outer layer to obtain the anti-cutting medical surgical gloves.

2. The method for preparing the cut-resistant medical surgical gloves according to claim 1, characterized in that: Step S1 includes: Dip the hand mold; After the impregnation is completed, pre-drying, glue spinning, glue leveling and drying operations are carried out in sequence. After the drying is completed, the impregnated inner layer is obtained.

3. The method for preparing the cut-resistant medical surgical gloves according to claim 1, characterized in that: Step S2 includes: The anti-cutting braided layer is sleeved on the outer surface of the rubber-impregnated inner layer. During the sleeve process, the anti-cutting braided layer is expanded and stretched to expand the pores on the surface of the anti-cutting braided layer.

4. The method for preparing the cut-resistant medical surgical gloves according to claim 3, characterized in that: Step s2 comprises: Preparation of coated yarn: using 20-40D spandex and 30-100D cut-resistant UHMWPE fiber as raw materials for coating to obtain coated yarn; preferably, the twist direction is Z twist or S twist, the twist is 150-220 twists / m, and the pull ratio is 1.7-2.0; Braiding the coated yarn: The coated yarn is braided by a glove knitting machine to obtain a cut-resistant braided layer. Preferably, the glove knitting machine is a 21-needle glove knitting machine.

5. The method for preparing the cut-resistant medical surgical gloves according to claim 4, characterized in that: The coated yarn comprises, by mass percentage: Cut-resistant UHMWPE fiber 82-95%; Spandex 5-18%.

6. The method for preparing the cut-resistant medical surgical gloves according to claim 5, characterized in that: The cut-resistant UHMWPE fiber comprises UHMWPE fiber, an antibacterial agent and a cut-resistant modified material; Preferably, the antibacterial agent is graphene; further preferably, the particle size of the graphene is in the range of 10-40 μm; Preferably, the anti-cutting modified material comprises one or more of glass fiber powder, carbon fiber powder, basalt fiber powder and silicon carbide powder; Preferably, the mass proportion of the antibacterial agent in each component of the cut-resistant UHMWPE fiber is 0.1%-1%; Preferably, the mass proportion of the cut-resistant modified material in each component of the cut-resistant UHMWPE fiber is 6%-32%; Preferably, the anti-cutting modified material has a diameter ranging from 0.5 to 10 μm, a length ranging from 20 to 200 μm, and an aspect ratio ranging from 4 to 40.

7. The method for preparing the cut-resistant medical surgical gloves according to claim 3, characterized in that: The porosity of the anti-cutting braided layer sleeved on the outer surface of the dipped rubber inner layer is 62-78%.

8. The method for preparing the cut-resistant medical surgical gloves according to claim 1, characterized in that: The thickness of the anti-cutting braided layer is 0.05-0.3 mm; the thickness of the rubber-impregnated inner layer and the rubber-impregnated outer layer are both 0.08-0.12 mm.

9. The method for preparing the cut-resistant medical surgical gloves according to claim 1, characterized in that: The material of the rubber-impregnated inner layer and the rubber-impregnated outer layer is rubber, and the rubber is at least one of nitrile, natural latex and PVC.

10. A medical surgical glove prepared by the method for preparing a cut-resistant medical surgical glove according to any one of claims 1 to 9, characterized in that: It comprises an anti-cutting braided layer and a rubber-impregnated inner layer and a rubber-impregnated outer layer which are respectively arranged on the inner and outer sides of the anti-cutting braided layer. The anti-cutting braided layer is woven by coated yarn according to the shape of the hand.

Images