CN114000250A - Vibration-proof glove based on weft-knitted spacer fabric and manufacturing method thereof - Google Patents
Vibration-proof glove based on weft-knitted spacer fabric and manufacturing method thereof Download PDFInfo
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- CN114000250A CN114000250A CN202111241590.3A CN202111241590A CN114000250A CN 114000250 A CN114000250 A CN 114000250A CN 202111241590 A CN202111241590 A CN 202111241590A CN 114000250 A CN114000250 A CN 114000250A
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
- D04B1/10—Patterned fabrics or articles
- D04B1/12—Patterned fabrics or articles characterised by thread material
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D19/00—Gloves
- A41D19/0006—Gloves made of several layers of material
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
- D02G3/12—Threads containing metallic filaments or strips
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
- D02G3/32—Elastic yarns or threads ; Production of plied or cored yarns, one of which is elastic
- D02G3/328—Elastic yarns or threads ; Production of plied or cored yarns, one of which is elastic containing elastane
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
- D04B1/14—Other fabrics or articles characterised primarily by the use of particular thread materials
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
- D04B1/14—Other fabrics or articles characterised primarily by the use of particular thread materials
- D04B1/18—Other fabrics or articles characterised primarily by the use of particular thread materials elastic threads
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2401/00—Physical properties
- D10B2401/13—Physical properties anti-allergenic or anti-bacterial
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2401/00—Physical properties
- D10B2401/16—Physical properties antistatic; conductive
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2501/00—Wearing apparel
- D10B2501/04—Outerwear; Protective garments
- D10B2501/041—Gloves
Abstract
The invention provides a vibration-proof glove based on weft-knitted spacer fabrics and a manufacturing method thereof, which are characterized in that: the vibration-proof glove is sewn by adopting weft-knitted spacer fabrics, each weft-knitted spacer fabric comprises an outer surface layer, an inner surface layer and a middle spacer layer, the outer surface layer and the inner surface layer are made of nylon-coated ammonia coated yarns, and the spacer layers are made of polyester monofilaments. The manufacturing method comprises the following steps: (1) preparing a polyamide-coated spandex covered yarn and a polyester monofilament; (2) on a double-needle bed computerized flat knitting machine, the ammonia brocade covering yarns are knitted into an outer surface layer and an inner surface layer of a plain stitch structure, and the outer surface layer and the inner surface layer are connected together by a spacing layer to form three-layer integral weft knitting interval fabric grey cloth; (3) shaping weft-knitted spacer fabric grey cloth; (4) and cutting the weft-knitted spacer fabric, and sewing the cut weft-knitted spacer fabric into the vibration-proof glove based on the weft-knitted spacer fabric. The vibration-proof gloves have the characteristics of light weight, good air permeability and moisture permeability and good vibration-damping effect; the materials and the manufacturing process adopted by the manufacturing method are reasonable.
Description
Technical Field
The invention belongs to the technical field of labor protection products, and also relates to a knitted fabric processing technology, in particular to a vibration-proof glove based on weft-knitted spacer fabrics and a manufacturing method thereof.
Background
Operators of concrete crushers, sanders, rock drills, pneumatic picks and the like are subjected to vibration of strong vibration tools for a long time, arms are prone to fatigue, and even blood vessels, sensory nerves, muscles, bones, joints and the like can be damaged, so that negative effects on health are caused. For example, white finger syndrome (VWF) is an occupational disease caused by impaired blood circulation due to arm vibration. Symptoms caused by the high intensity arm vibration may reduce the grip and feel of the operator, may make it difficult to perform delicate work, affect work efficiency and productivity, and even cause danger in a work environment. It was shown by investigation that in 2008, the ratio of the vibration influence among workers using the hand-held electric tool was 4.6%, 5.6% and 8.3%, respectively. Several studies have shown that the labor population for excessive exposure to a vibratory working environment is large. Therefore, it is of great importance to develop gloves having vibration-proof function. As an economical and effective method, the vibration impact transmitted to the hand during the operation process of the vibration tool can be reduced by wearing the gloves with the vibration-proof function, so that the operator can be effectively protected.
Inevitably, in work activities such as building, mining and agriculture, some machines or production tools need to be operated by gripping a handle with a hand of a person, the movement of the handle is used as a vibration source, and the hand of the person directly senses the vibration. In order to realize vibration avoidance and impact resistance of an operator on a vibration mechanical handle or a tool handle, an isolation layer can be added between the hand and the handle. The isolation layer needs to have certain rigidity and damping, and the most common form is the anti-vibration glove. Conventional vibration-proof gloves generally employ rubber, polyurethane foam, or an airbag as a vibration-damping material. In the patent application document of "a method for preparing vibration-proof gloves" (patent number cn201810382595.x, published as 2020.03.31) of Shandong Xingyu gloves Co., Ltd., a bead-dropping glue is prepared by using natural latex, a surfactant, a foaming agent and a thickening agent as a formula, so as to play a role in buffering and vibration-proof. In the patent application document "a seamless shock absorbing coated impact resistant glove" (patent No. CN201920653827.0, published 2020.03.31) of shanghai sairit safety products corporation, a buffering patch is made of TPR thermoplastic rubber material to achieve the shock absorbing and impact resistant functions. In the patent application document "an environmental protection vibration-proof glove convenient to operate" (patent No. CN201621297971.8, published 2017.05.31) of seison leather products ltd, No. xian county, the palm face is made of leather material to achieve vibration-proof effect. In the patent application document of "a gasbag type vibration-proof glove" of king wuhan (patent No. cn201420701233.x, publication No. 2015.02.18), a gasbag is used as a vibration-proof material.
Rubber, polyurethane foam and closed air bags all have some problems, and the materials have poor air and moisture permeability and low wearing comfort, so that the materials are not ideal damping materials. Due to lack of comfort, operators of vibration machines often choose not to use professional vibration-proof gloves, but only to use cotton gloves or canvas gloves which are good in breathability but free of vibration-proof effect. When the cotton gloves are worn for a long time, hand joints can be damaged, and vibration diseases can be caused.
In the patent application document of "a knitted spacer fabric-based wear-resistant glove" (No. CN 104783348B, published by 2016.09.21) of Guangzhou Yiseng protection product science and technology Co., Ltd., the spacer fabric is described as a spacer layer made of polyurethane fibers, and a wear-resistant surface layer made of polyester high-strength yarns without elastic components. Since the application field of the spacer fabric realized in this patent application is wear-resistant gloves, there is a high requirement for the wear-resistance of the fabric facing material, and there is no special requirement for the load-bearing and vibration-damping properties in the direction perpendicular to the fabric facing.
Therefore, how to design a pair of labor protection gloves for vibration protection with both comfort and vibration damping performance is a technical problem to be solved urgently in the field at present.
Disclosure of Invention
Aiming at the problems and the defects in the prior art, the invention provides the vibration-proof gloves based on the weft-knitted spacer fabric and the manufacturing method thereof, and the vibration-proof gloves not only have the excellent characteristics of light weight, good air permeability and moisture permeability, but also have good vibration-damping effect; the materials and the manufacturing process adopted by the manufacturing method of the vibration-proof gloves are reasonable.
The purpose of the invention is realized by the following technical scheme:
the utility model provides a antivibration gloves based on weft knitting spacer fabric, its characterized in that, antivibration gloves adopt weft knitting spacer fabric to make up by hand or sewing machine, weft knitting spacer fabric includes surface course, interior surface course and middle wall, the wall links together surface course and interior surface course, forms three-layer integral type structure, surface course and interior surface course all adopt polyamide package ammonia cladding yarn as the yarn, the wall adopts polyester monofilament or polyamide 6 monofilament as the yarn.
The improvement of the technical scheme is as follows: the fabric structures of the outer surface layer and the inner surface layer are plain stitch structures, and the polyester monofilaments or the polyamide 6 monofilaments are alternately tucked in the outer surface layer and the inner surface layer to form the spacing layer.
The technical scheme is further improved as follows: the total number of tuck stitches of the spacing layer is equal to the total number of plain stitch stitches of the outer surface layer and the inner surface layer, and the weft-knitted spacer fabric is 6-stitch, 8-stitch or 10-stitch weft-knitted spacer fabric.
The technical scheme is further improved as follows: the nylon-coated ammonia covered yarn is 30/70 nylon-coated ammonia covered yarns or 40/60 nylon-coated ammonia covered yarns, the fineness of nylon fibers in the nylon-coated ammonia covered yarns is 2.5-3.0D, and the diameter of the polyester monofilament is 0.08-0.10 mm.
The technical scheme is further improved as follows: the inner surface layer is formed by weaving the ammonia brocade clad yarn and the pure silver fiber yarn in a doubling manner.
A method for manufacturing vibration-proof gloves based on weft-knitted spacer fabrics, wherein the weft-knitted spacer fabrics comprise outer surface layers, inner surface layers and intermediate spacer layers, and is characterized by comprising the following steps:
step 1: preparing polyamide-in-ammonia covered yarns for weaving an outer surface layer and an inner surface layer of the weft-knitted spacer fabric and polyester monofilaments or polyamide 6 monofilaments for weaving a spacer layer of the weft-knitted spacer fabric;
step 2: weaving weft-knitted spacer fabric on a double-needle bed computerized flat knitting machine or a circular knitting machine, weaving the nylon covered ammonia covered yarn into the outer surface layer of a plain stitch structure and the inner surface layer of the plain stitch structure, alternately tucking and weaving polyester monofilaments or polyamide 6 monofilaments on the outer surface layer and the inner surface layer into a spacer layer, and connecting the outer surface layer and the inner surface layer together by the spacer layer to form three-layer integral-structure woven weft-knitted spacer fabric grey cloth;
and step 3: after the grey cloth of the weft-knitted spacer fabric is subjected to setting treatment, the weft-knitted spacer fabric is obtained for standby;
and 4, step 4: and cutting the weft-knitted spacer fabric, and sewing the cut weft-knitted spacer fabric into the vibration-proof glove based on the weft-knitted spacer fabric.
The improvement of the technical scheme is as follows: the double-needle bed computerized flat knitting machine is characterized in that the gauge is 14G, the total number of tuck stitches of the spacing layer is equal to the total number of plain stitch loops of the outer surface layer and the inner surface layer, and the weft-knitted spacer fabric is 6-needle, 8-needle or 10-needle weft-knitted spacer fabric.
The technical scheme is further improved as follows: the nylon-coated ammonia covered yarn is 30/70 nylon-coated ammonia covered yarns or 40/60 nylon-coated ammonia covered yarns, the fineness of nylon fibers in the nylon-coated ammonia covered yarns is 2.5-3.0D, and the diameter of the polyester monofilament is 0.08-0.10 mm.
The technical scheme is further improved as follows: and (2) plying and weaving 30-100D pure silver fiber yarns and the ammonia brocade coating yarns into the inner surface layer, wherein the mass ratio of the pure silver fiber yarns to the total fibers (including the total amount of the fibers in the inner surface layer 3, the outer surface layer 1 and the spacing layer 2) is 2-4%.
The technical scheme is further improved as follows: the elongation at break of the brocade ammonia covered yarn is 25-50%, and the breaking strength is 5.0-7.5N; the elongation at break of the polyester monofilament is 10% -20%, and the breaking strength is 3.4-6.3 cN/dtex.
The invention has the advantages and positive effects that:
1. the vibration-proof glove based on the weft-knitted spacer fabric has the advantages of light weight, air permeability, good moisture permeability, wearing comfort and the like; the weft-knitted spacer fabric adopted by the vibration-proof glove does not contain any binder, the tuck stitch adopts larger needle span, and the outer surface layer and the inner surface layer both adopt high-resilience ammonia brocade covered yarns, so that the weft-knitted spacer fabric can obtain larger thickness and tighter texture structure after shaping treatment, and the weft-knitted spacer fabric can bear larger external force; the spacing layer adopts polymer monofilaments with larger diameter and bending rigidity, so that the fabric has viscoelasticity and plays a role in buffering and damping. Through the combined design of the fabric material structure, the weft-knitted spacer fabric can simultaneously have the functions of bearing larger load and buffering and damping.
2. According to the anti-vibration glove based on the weft-knitted spacer fabric, the inner surface layer is added with a small amount of silver fiber yarns, and the fabric is endowed with good antibacterial property and antistatic property. Because the inner surface layer of the weft-knitted spacer fabric is in contact with the skin, the fabric can be endowed with the functions of antibiosis and static elimination by adding silver fiber yarns with certain specifications and proportion into the surface layer. The bacteriostatic and antibacterial effects of the pure silver fibers come from the continuous and slow release of silver ions with high biological activity, and the breeding of bacteria can be effectively controlled. After the silver fibers are added, the inhibition rate of the weft-knitted spacer fabric on candida albicans, staphylococcus aureus and escherichia coli is obviously improved. The prepared weft-knitted spacer fabric also has good antistatic property because the metallic silver has high conductivity and can dissipate friction charges.
Drawings
FIG. 1 is a schematic view of a vibration-proof glove based on weft-knitted spacer fabric according to the present invention;
fig. 2 is a schematic view of a weft-knitted spacer fabric used in the vibration-proof glove based on the weft-knitted spacer fabric of the present invention.
FIG. 3 is a schematic knitting diagram of a 6-stitch spacer fabric as an example in a vibration-proof glove based on weft-knitted spacer fabric according to the present invention;
FIG. 4 is a schematic view of a machine for weaving 6-stitch spacer fabric in the vibration-proof glove based on weft-knitted spacer fabric according to the present invention;
FIG. 5 is a schematic representation of the topographical variations in the weft cross-section of a 6-pin spacer fabric as an example when woven on a loom and after finishing;
FIG. 6 is a schematic representation of the topographical variations in the warp cross-section of a 6-pin spacer fabric as an example when woven and after finishing;
FIG. 7 is a schematic representation of the buckling waveform of the monofilaments within the spacer fabric;
FIG. 8 is a schematic view of a vibration transmissivity test of a spacer fabric-mass system.
Wherein, 1-outer surface layer; 2-a spacer layer; 3-inner surface layer; 4-a mass block; 5-vibrating the platform; 6-an acceleration sensor measuring the vibration response; 7-acceleration sensor to measure a vibration source.
Detailed Description
The invention is described in further detail below with reference to the following figures and examples:
the illustrative embodiments and descriptions of the present invention are provided to explain the present invention and not to limit the present invention. The requirements for the materials of the vibration-proof gloves are different according to the specific application of the vibration protection. The raw materials, the weave structure and the weaving process of the spacer fabric can be correspondingly adjusted to obtain the knitted spacer fabric anti-vibration glove meeting the actual anti-vibration performance requirement.
The invention relates to a specific implementation mode of a vibration-proof glove based on weft-knitted spacer fabrics, which is formed by sewing the weft-knitted spacer fabrics manually or by a sewing machine, wherein the weft-knitted spacer fabrics comprise an outer surface layer, an inner surface layer and a middle spacer layer, the outer surface layer and the inner surface layer are connected together by the spacer layer to form a three-layer integrated structure, the outer surface layer and the inner surface layer both adopt nylon-coated ammonia coated yarns as yarns, and the spacer layer adopts polyester monofilaments or polyamide 6 monofilaments as yarns. The fabric structures of the outer surface layer and the inner surface layer are plain stitch structures, and polyester monofilaments or polyamide 6 monofilaments are alternately tucked in the outer surface layer and the inner surface layer to form the spacing layer.
The invention relates to a specific implementation mode of a method for manufacturing a vibration-proof glove based on weft-knitted spacer fabrics, wherein the weft-knitted spacer fabrics comprise an outer surface layer, an inner surface layer and a middle spacer layer, and the method for manufacturing the vibration-proof glove comprises the following steps:
step 1: preparing polyamide-in-ammonia covered yarns for weaving an outer surface layer and an inner surface layer of the weft-knitted spacer fabric and polyester monofilaments or polyamide 6 monofilaments for weaving a spacer layer of the weft-knitted spacer fabric;
step 2: weaving weft-knitted spacer fabric on a double-needle bed computerized flat knitting machine, weaving the nylon covered ammonia covered yarn into the outer surface layer of a plain stitch structure and the inner surface layer of the plain stitch structure, knitting polyester monofilaments into the spacer layer on the outer surface layer and the inner surface layer in turn, and connecting the outer surface layer and the inner surface layer together by the spacer layer to form three-layer integral weft-knitted spacer fabric grey cloth;
and step 3: after the grey cloth of the weft-knitted spacer fabric is subjected to setting treatment, the weft-knitted spacer fabric is obtained for standby;
and 4, step 4: and cutting the weft-knitted spacer fabric, and sewing the cut weft-knitted spacer fabric into the vibration-proof glove based on the weft-knitted spacer fabric.
The following are specific examples of the present invention:
example 1:
referring to fig. 1-7, the vibration-proof glove based on the weft-knitted spacer fabric is formed by sewing the weft-knitted spacer fabric manually or by a sewing machine, the weft-knitted spacer fabric comprises an outer surface layer 1, an inner surface layer 3 and a middle spacer layer 2, the outer surface layer 1 and the inner surface layer 3 are connected together by the spacer layer 2 to form a three-layer integrated structure (namely a sandwich structure), the outer surface layer 1 and the inner surface layer 3 both adopt nylon-coated ammonia coated yarns as yarns, and the spacer layer 2 adopts polyester monofilaments as the yarns.
The weave structure of the weft-knitted spacer fabric in example 1 of the present invention is as follows:
the outer surface layer 1 and the inner surface layer 3 are plain stitch, and meanwhile, polyester monofilaments are tucked in turn on the outer surface layer 1 and the inner surface layer 3. The total number of tuck stitches is equal to the total number of the plain stitch stitches of the surface layer. When weaving, the same polyester monofilament is separated by 6 needle pitches between two adjacent tuck points on the same needle bed. As shown in the upper machine diagram of fig. 4, when two adjacent tuck points of the same polyester monofilament on the same needle bed are separated by 6 needle pitches, the corresponding fabric is called "6-needle spacer fabric". As shown in the knitting diagram of fig. 3, a total of 8 yarns form a course. The yarns of the 1 st and 2 nd route outer surface layers 1 and the inner surface layer 3 are respectively made into plain stitch structures on the front needle bed and the back needle bed, and the polyester monofilaments of the 3 rd to 8 th route spacing layers are orderly and alternately tucked on the front needle bed and the back needle bed, so that the outer surface layer 1 and the inner surface layer 3 are connected by the polyester monofilaments of the spacing layer 2, and a three-layer integrated forming structure is obtained.
The specific manufacturing method of the vibration-proof glove comprises the following steps:
(1) preparing two strands of 30/70 polyamide-ammonia covered yarns (the fineness range of polyamide fibers in the polyamide-ammonia covered yarns is generally 2.5-3.0D, and the specification of polyamide in the polyamide-ammonia covered yarns in the embodiment 1 is 70D/24F) for weaving the outer surface layer 1 and the inner surface layer 3 of the weft-knitted spacer fabric and polyester monofilaments with the diameter of 0.08 mm for weaving the spacer layer 2 of the weft-knitted spacer fabric; (2) weaving weft-knitted spacer fabric on a double-needle bed computerized flat knitting machine with the gauge of 14G, and knitting two strands of 30/70 ammonia-covered brocade yarns into an outer surface layer 1 of plain stitch and an inner surface layer 3 of plain stitch; polyester monofilaments with the diameter of 0.08 mm are orderly tucked and knitted into spacing layers on an outer surface layer 1 and an inner surface layer 3, the spacing layer 2 connects the outer surface layer 1 and the inner surface layer 3 together, the total number of tucked stitches is equal to the total number of plain stitches of the outer surface layer 1 and the inner surface layer 3, and every two adjacent tucked points of the same polyester monofilament on the same needle bed are spaced by 6 needle pitches to form 6-needle interval weft knitting spacing fabric grey cloth; (3) 6-needle interval weft-knitted interval fabric gray fabric is subjected to setting treatment to obtain 6-needle interval weft-knitted interval fabric for later use; (4) after 6-needle interval weft-knitted fabric is cut, the vibration-proof glove based on the weft-knitted interval fabric is sewn.
Example 1 preferred embodiment of the sizing treatment:
and after the weft-knitted spacer fabric is taken off the machine, steam ironing is carried out on the front side and the back side of the weft-knitted spacer fabric at the temperature of 100 ℃, and then standing is carried out for 24 hours for full sizing.
After the weft-knitted spacer fabric is finished, due to the strong tightening action of the yarns of the outer surface layer 1 and the inner surface layer 3, the weft-knitted spacer fabric can shrink, the weft density, the warp density and the fabric thickness of the weft-knitted spacer fabric are obviously improved compared with those of a loom, and the polyester monofilament form in the cross section of the weft-knitted spacer fabric is greatly changed. Taking 6-needle spacer fabric as an example, as shown in fig. 5, when viewed from a latitudinal cross section, the polyester monofilament changes from an inclined straight line segment in the process of being processed into a buckling wave state; when viewed in a longitudinal section, the polyester monofilament is changed from a straight state at the time of processing to a side-bent state as shown in fig. 6.
Example 2:
referring to fig. 1-2, the vibration-proof glove based on the weft-knitted spacer fabric is formed by sewing the weft-knitted spacer fabric manually or by a sewing machine, the weft-knitted spacer fabric comprises an outer surface layer 1, an inner surface layer 3 and a middle spacer layer 2, the outer surface layer 1 and the inner surface layer 3 are connected together by the spacer layer 2 to form a three-layer integrated structure (namely a sandwich structure), the outer surface layer 1 and the inner surface layer 3 both adopt nylon-coated ammonia coated yarns as yarns, and the spacer layer 2 adopts polyester monofilaments as the yarns. The specific manufacturing method of the vibration-proof glove comprises the following steps:
(1) preparing two strands of 40/60 polyamide ammonia covered yarns for weaving the outer surface layer 1 and the inner surface layer 3 of the weft-knitted spacer fabric and polyester monofilaments with the diameter of 0.10 mm for weaving the spacer layer 2 of the weft-knitted spacer fabric; (2) weaving weft-knitted spacer fabric on a double-needle bed computerized flat knitting machine with the gauge of 14G, and knitting two strands of 40/60 ammonia-covered brocade yarns into an outer surface layer 1 of plain stitch and an inner surface layer 3 of plain stitch; polyester monofilaments with the diameter of 0.10 mm are orderly tucked and knitted into spacing layers on an outer surface layer 1 and an inner surface layer 3, the spacing layer 2 connects the outer surface layer 1 and the inner surface layer 3 together, the total number of tucked stitches is equal to the total number of plain stitches of the outer surface layer 1 and the inner surface layer 3, and the same polyester monofilament is separated by 8 stitches at two adjacent tucked points on the same needle bed to form 8-stitch weft-spaced interval fabric grey cloth; (3) after the grey cloth of the 8-needle interval weft-knitted interval fabric is subjected to sizing treatment, 8 knitted interval weft-knitted interval fabric is obtained for later use; (4) after the 8-needle interval weft-knitted interval fabric is cut, the vibration-proof glove based on the weft-knitted interval fabric is sewn.
Example 3:
referring to fig. 1-2, the vibration-proof glove based on the weft-knitted spacer fabric is formed by sewing the weft-knitted spacer fabric manually or by a sewing machine, the weft-knitted spacer fabric comprises an outer surface layer 1, an inner surface layer 3 and a middle spacer layer 2, the outer surface layer 1 and the inner surface layer 3 are connected together by the spacer layer 2 to form a three-layer integrated structure (namely a sandwich structure), the outer surface layer 1 and the inner surface layer 3 both adopt polyamide coated yarns as yarns, and the spacer layer 2 adopts polyamide 6 monofilaments as the yarns. The specific manufacturing method of the vibration-proof glove comprises the following steps:
(1) preparing two strands of 30/70 polyamide-enclosed ammonia covered yarns for weaving the outer surface layer 1 and the inner surface layer 3 of the weft-knitted spacer fabric and polyamide 6 monofilaments with the diameter of 0.10 mm for weaving the spacer layer 2 of the weft-knitted spacer fabric; (2) weaving weft-knitted spacer fabric on a double-needle bed computerized flat knitting machine with the gauge of 14G, and knitting two strands of 30/70 ammonia-covered brocade yarns into an outer surface layer 1 of plain stitch and an inner surface layer 3 of plain stitch; polyamide 6 monofilaments with the diameter of 0.10 mm are orderly tucked and woven into a spacing layer on an outer surface layer 1 and an inner surface layer 3, the spacing layer 2 connects the outer surface layer 1 and the inner surface layer 3 together, the total number of tucked stitches is equal to the total number of plain stitches of the outer surface layer 1 and the inner surface layer 3, and the same polyamide 6 monofilament is separated by 10 needle pitches between two adjacent tucked points on the same needle bed to form 10-needle interval weft-knitted spacer fabric grey cloth; (3) after the grey cloth of the 10-needle interval weft-knitted interval fabric is subjected to setting treatment, 10 knitted interval weft-knitted interval fabrics are obtained for standby; (4) after the 10-needle interval weft-knitted fabric is cut, the vibration-proof glove based on the weft-knitted interval fabric is sewn.
Preferably, the brocade ammonia covered yarn in the embodiments 1 to 3 of the invention has the breaking elongation of 25 to 50 percent and the breaking strength of 5.0 to 7.5N; the elongation at break of the polyester monofilament is 10% -20%, and the breaking strength is 3.4-6.3 cN/dtex.
Preferably, in embodiment 1-2 of the present invention, the elongation at break of the brocade ammonia covered yarn is 25% to 50%, and the breaking strength is 5.0 to 7.5N; the elongation at break of the polyester monofilament is 10-20 percent, and the breaking strength is 3.4-6.3 cN/dtex. In the embodiment 3 of the invention, the elongation at break of the brocade ammonia covered yarn is 25-50%, and the breaking strength is 5.0-7.5N; the elongation at break of the polyamide 6 monofilament is 20-30%, and the breaking strength is 3.5-5.2 cN/dtex.
In order to endow the vibration-proof gloves with good antibacterial property and antistatic property, in embodiments 1 to 3 of the present invention, a small amount of pure silver fiber yarns may be added to the inner surface layer 3, specifically, 30 to 100D pure silver fiber yarns and 30/70 nylon-coated spandex coated yarns, which account for 2 to 4% by mass of the total fibers (including the total amount of fibers in the inner surface layer 3, the outer surface layer 1 and the interlayer 2), are doubled and woven into the inner surface layer 3.
Characteristics of weft-knitted spacer fabrics in examples 1 to 3 of the present invention:
due to the high resilience of the brocade ammonia covered yarn and the high extensibility of the knitting coil structure, the size of the fabric after the shaping treatment has certain retraction compared with the size of the fabric just before the fabric is taken off the machine. Wherein the weft shrinkage of the weft-knitted spacer fabric is 8-10%, and the warp shrinkage is 12-16%. The reason why the weft shrinkage is smaller than the warp shrinkage is that the weft-knitted fabric is knitted along the weft direction, and the coil shrinkage is smaller because the spacing monofilaments have higher bending rigidity in the same horizontal row of the weft direction; in contrast, the loops shrink more within the same column in the warp direction due to the absence of spacer filament restraint. The gram weight of the fabric is 440-540 g/m2The thickness is 4.5-6.5 mm, the weft-direction coil density is 230-240 transverse rows/10 cm, the warp-direction coil density is 200-220 longitudinal rows/10 cm, and the air permeability of the fabric is 60-80 ml/cm when the pressure difference is 100 Pa2/s。
In the weft-knitted spacer fabric prepared in the embodiments 1 to 3 of the present invention, the tuck stitch adopts a large needle span, and the outer surface layer 1 and the inner surface layer 3 both adopt the high-resilience ammonia covered with brocade yarn, so that the fabric can obtain a large thickness and a compact structure after being subjected to a shaping treatment, and the fabric can bear a large external force. In order to make the weft-knitted spacer fabric have viscoelasticity, the spacer layer 2 adopts polyester monofilament (or polyamide 6 monofilament) with larger diameter and bending rigidity, and an infinite number of regularly arranged polyester monofilament (or polyamide 6 monofilament) segments with certain initial curvature are formed in the spacer layer 2, wherein each bent polyester monofilament (or polyamide 6 monofilament) segment is equivalent to a compression spring. Therefore, the whole weft-knitted spacer fabric can bear certain external force in the direction vertical to the outer surface layer 1 and the inner surface layer 3, and has good vibration damping and buffering effects.
The invention makes the weft-knitted spacer fabric have the functions of bearing larger load and buffering and damping simultaneously through the combined design of the fabric material and the weave structure.
In order to prove that the invention has good vibration damping effect, the vibration test device shown in fig. 8 is adopted to carry out comparison test on indexes such as vibration transmission rate and the like of the gloves of examples 1-3 of the invention and the prior art. The vibration test device comprises a counterweight mass block 4, a vibration test platform 5, an acceleration sensor 6 for measuring vibration response and an acceleration sensor 7 for measuring a vibration source.
The vibration damping performance test method of the vibration test device comprises the following steps:
the method for testing the vibration damping performance of the weft-knitted spacer fabric is shown in fig. 8, the weft-knitted spacer fabric is placed between a counterweight mass block 4 (with the mass of 1kg and the pressing surface of 9 cm multiplied by 9 cm) and a vibration testing platform 5, and detection is carried out through an acceleration sensor 6 for measuring vibration response and an acceleration sensor 7 for measuring a vibration source. The vibrations transmitted from the vibration testing platform 5 to the counterweight mass 4 are damped due to the damping and cushioning effect of the weft-knitted spacer fabric. And the vibration transmission rate TRH of the system can be obtained by comparing the acquired values of the acceleration gauge II and the acceleration gauge I. TRH < 1 indicates that the glove material can reduce vibration; TRH > 1 indicates that not only the vibration reduction effect is not exerted, but also the vibration is increased. The vibration transfer rate TRH of the vibration damping glove at 150Hz is generally less than 0.6. The vibration damping performance test method adopted by the invention is a conventional technology, and therefore, the details are not repeated.
The results of gram weight, thickness, stitch density and vibration transmission rate TRH of the vibration-proof gloves based on weft-knitted spacer fabrics prepared in examples 1 to 3 of the present invention are shown in table 1.
Unlike the present invention, the spacer fabric used in the patent application entitled "a knitted spacer fabric-based abrasion resistant glove" (grant publication No. CN 104783348B) has a large difference in material, structure and mechanical properties from the weft-knitted spacer fabric according to the present invention. For example, the spacer fabric prepared in one of the examples in this patent application uses 350dtex polyester high-tenacity yarn with 10.1 cN/dtex breaking strength and 10% elongation at break as the wear-resistant surface layer, 87dtex polyurethane fiber as the spacer layer, and 89.4dtex polyester elastic SSY fiber as the inner surface. The spacer fabric achieved by the examples in the above-mentioned patent application document was tested to have a vibration transmission rate TRH of 0.64 at 150Hz and 0.51 at 200 Hz.
As can be seen from Table 1, the vibration transmissibility TRH of examples 1-3 is less than 0.5, which proves that the vibration-proof gloves based on weft-knitted spacer fabrics prepared by the invention have good vibration-proof performance and are suitable for vibration protection. Compared with the spacer fabric adopted in the name of 'a wear-resistant glove based on knitted spacer fabric' (the authorization notice number CN 104783348B), the vibration damping performance of the invention is obviously improved.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. The utility model provides a antivibration gloves based on weft knitting spacer fabric, its characterized in that, antivibration gloves adopt weft knitting spacer fabric to make up by hand or sewing machine, weft knitting spacer fabric includes surface course, interior surface course and middle wall, the wall links together surface course and interior surface course, forms three-layer integral type structure, surface course and interior surface course all adopt polyamide package ammonia cladding yarn as the yarn, the wall adopts polyester monofilament or polyamide 6 monofilament as the yarn.
2. Anti-vibration gloves based on weft-knitted spacer fabric according to claim 1, characterized in that the fabric structure of the outer and inner layers is plain stitch, the polyester monofilament or polyamide 6 monofilament being tucked in turn in the outer and inner layers to form the spacer layer.
3. The weft-knitted spacer fabric-based vibration-proof glove according to claim 1 or 2, wherein the total number of tuck stitches of the spacer layer is equal to the total number of plain stitch stitches of the outer and inner face layers, and the weft-knitted spacer fabric is 6-stitch, 8-stitch, or 10-stitch weft-knitted spacer fabric.
4. The weft-knitted spacer fabric-based vibration-proof glove according to claim 1 or 2, wherein the nylon-in-polyamide covered yarn is two strands of 30/70 nylon-in-polyamide covered yarn or two strands of 40/60 nylon-in-polyamide covered yarn, the fineness of the nylon fiber in the nylon-in-polyamide covered yarn is 2.5-3.0D, and the diameter of the polyester monofilament is 0.08-0.10 mm.
5. The weft-knitted spacer fabric-based vibration-proof glove according to claim 1 or 2, wherein the inner layer is woven by the spandex coated yarn and a pure silver fiber yarn in a side-by-side manner.
6. A method for manufacturing vibration-proof gloves based on weft-knitted spacer fabrics, wherein the weft-knitted spacer fabrics comprise outer surface layers, inner surface layers and intermediate spacer layers, and is characterized by comprising the following steps:
step 1: preparing polyamide-in-ammonia covered yarns for weaving an outer surface layer and an inner surface layer of the weft-knitted spacer fabric and polyester monofilaments or polyamide 6 monofilaments for weaving a spacer layer of the weft-knitted spacer fabric;
step 2: weaving weft-knitted spacer fabric on a double-needle bed computerized flat knitting machine or a circular knitting machine, weaving the nylon covered ammonia covered yarn into the outer surface layer of a plain stitch structure and the inner surface layer of the plain stitch structure, alternately tucking and weaving polyester monofilaments or polyamide 6 monofilaments on the outer surface layer and the inner surface layer into a spacer layer, and connecting the outer surface layer and the inner surface layer together by the spacer layer to form three-layer integral-structure woven weft-knitted spacer fabric grey cloth;
and step 3: after the grey cloth of the weft-knitted spacer fabric is subjected to setting treatment, the weft-knitted spacer fabric is obtained for standby;
and 4, step 4: and cutting the weft-knitted spacer fabric, and sewing the cut weft-knitted spacer fabric into the vibration-proof glove based on the weft-knitted spacer fabric.
7. The method for manufacturing vibration-proof gloves based on weft-knitted spacer fabrics according to claim 6, wherein the gauge of the double-needle bed computerized flat knitting machine is 14G, the total number of tuck stitches of the spacer layer is equal to the total number of plain stitches of the outer layer and the inner layer, and the weft-knitted spacer fabrics are 6-needle, 8-needle or 10-needle weft-knitted spacer fabrics.
8. The method for manufacturing the vibration-proof gloves based on weft-knitted spacer fabric according to claim 6 or 7, wherein the ammonia-covered polyamide yarns are 30/70 strands or 40/60 strands, the fineness of polyamide fibers in the ammonia-covered polyamide yarns is 2.5-3.0D, and the diameter of the polyester monofilament is 0.08-0.10 mm.
9. The method for manufacturing vibration-proof gloves based on weft-knitted spacer fabrics according to claim 6 or 7, characterized in that 30-100D pure silver fiber yarns and the brocade ammonia covered yarns, which account for 2-4% of the total fiber mass ratio, are plied and woven into the inner surface layer.
10. The method for manufacturing the vibration-proof gloves based on weft-knitted spacer fabric according to claim 6 or 7, wherein the elongation at break of the spandex-covered yarn is 25 to 50%, and the breaking strength is 5.0 to 7.5N; the elongation at break of the polyester monofilament is 10% -20%, and the breaking strength is 3.4-6.3 cN/dtex.
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| CN202111241590.3A CN114000250A (en) | 2021-10-25 | 2021-10-25 | Vibration-proof glove based on weft-knitted spacer fabric and manufacturing method thereof |
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