RU2731869C2 - Knitted glove and method of its production - Google Patents

Abstract

FIELD: consumer goods industry.

SUBSTANCE: invention relates to knitted gloves and methods for their production. Knitted glove according to an aspect of invention comprises jersey made of five or more threads made of three or more different materials. Threads include one or more primary reinforcing threads; one or more secondary reinforcing thread, having smaller linear density and greater flexibility, than primary reinforcing thread; and one or more main thread containing soft base material. Each warp thread has linear density from 20 to 125 tex, each primary reinforcing thread has linear density from 20 to 150 tex, each secondary reinforcing thread has linear density from 2 to 50 tex, and smaller linear density, than each primary reinforcing thread of the same glove. Total linear density of jersey of five or more threads ranges from 320 to 450 tex.

EFFECT: knitted glove and method of its production are proposed.

13 cl, 3 dwg

Description

FIELD OF THE INVENTION

[0001] This invention relates to knitted products, and in particular to knitted work gloves.

LEVEL OF TECHNOLOGY

[0002] Work gloves can be classified into different categories. Depending on the material from which they are made, gloves can be textile, rubber, knitted, leather or combined. Depending on the manufacturing method, each glove can be made as a whole, sewn from two halves, or in parts made separately from each other.

[0003] Work gloves help protect hands from various hazards. These factors also fall into categories such as biological (which are usually protected by rubber medical gloves), chemical, mechanical, short and long term thermal, weather, vibration, and others. Mechanical hazards include any hazard that could cut, abrade or puncture the skin.

[0004] Short term thermal protection is needed in situations where sudden temperature surges are possible due to interaction with hot surfaces, flames, sparks, or extremely low temperatures. Long term thermal protection is usually required in cold weather conditions.

[0005] Vibration protection ensures safe handling of vibrating devices that can harm your hands. Examples of such devices include trimmers, drills, jackhammers, and other tools.

[0006] Mechanical, thermal and vibration protection is usually provided either by using dense woven fabrics in work gloves and mittens, which makes the glove uncomfortable, or by coating the gloves with protective polymers. Most polymer coatings also impair glove comfort, at least due to impaired air exchange leading to sweating of the palms.

[0007] The knitted fabric in knitted gloves is generally thin, has a low linear density (about 200 tex), and is made of one or two materials. An uncoated knitted glove can be comfortable to use, however, to provide protection against the aforementioned hazards, a multi-layer polymer coating is usually required, which greatly reduces the convenience. The coating also does not provide protection against all factors.

[0008] The industrial production of knitted gloves is automated. There are several types of knitting machines on the market, differing in productivity - the number of gloves per hour, and in reliability - the number of defects per a given number of copies.

SUMMARY OF THE INVENTION

[0009] This invention relates to knitted work gloves and methods for their production, overcoming some of the disadvantages of prior art solutions. The glove and method according to the invention also have additional advantages and technical effects.

[0010] According to a first aspect of the present invention, there is provided a knitted glove comprising knitted fabrics of five or more strands made from three or more different materials. The five or more threads include one or more primary reinforcing threads, one or more secondary reinforcing threads, and one or more warp threads. Knitwear for a glove of five or more strands is made from a composite knitted material made of five or more strands (i.e., from a bundle of strands in which there are five or more strands). Thus, the number of threads of a certain type in a glove represents their proportion in the material in relation to other types of threads. The linear density of threads from a certain material in knitted fabric directly depends on the total number of threads from this material, however, each individual thread may have a linear density that differs from the linear density of other threads. Linear densities most clearly reflect the proportions of each of the three or more materials in the knitted glove, so the linear densities will be used throughout this specification along with the number of yarns used to make the glove.

[0011] The primary reinforcing threads determine the basic protective properties of the knitted glove. Basic protective properties can include mechanical, vibration or thermal protection, or any combination of these properties. The primary reinforcing yarns can be made from various reinforcing materials that provide these protective properties, as disclosed below in the description of embodiments of the invention.

[0012] Secondary reinforcing yarns have a lower linear density and more flexibility than primary reinforcing yarns. This also means that the individual secondary reinforcing threads are thinner than the individual primary reinforcing threads. The lower linear density and thickness allows the secondary reinforcing yarns to occupy the space between the denser primary reinforcing yarns and the warp yarns. Secondary reinforcing yarns can also surround other yarns and / or tie the primary reinforcing yarns to the warp yarns. This improves the protective properties of the glove, since the material becomes stronger and more densely filled, and the elasticity of the glove does not deteriorate.

[0013] The warp yarns contain a soft base material that determines the elastic and ergonomic properties of the knitted glove. These properties can include a tactile feel, elasticity in all directions, and breathability to prevent palms from sweating. The elasticity of the warp yarns, combined with the protective properties of the reinforcing yarns, can also enhance cut, abrasion and puncture resistance.

[0014] Each individual main thread has a linear density of 20 to 125 tex, each individual primary reinforcing thread has a linear density of 20 to 150 tex, and each individual secondary reinforcing thread has a linear density of 2 to 50 tex - this value is always lower. than the linear density of each individual primary reinforcing yarn. The total (total) linear density of five or more threads contained in a knitted glove ranges from 320 to 450 tex. The total linear density of the warp threads can be higher than the total linear density of all other threads.

[0015] This combination of yarn-type linear density ranges, and the overall linear density indicated, provides optimum glove barrier performance. These properties can include any combination of: protection against cuts, abrasion, punctures, rupture of the glove; protection against fire or other sudden temperature changes; protection against short-term effects of various liquids; vibration protection; and protection from dirt and dust.

[0016] A set of five or more strands can easily achieve a total linear density of 320 to 450 tex. More than five threads give better mechanical and other protective properties of the glove than a glove with fewer threads, but the same total linear density. The combination of different types of threads additionally strengthens the knitted fabric.

[0017] The number of different materials from which the threads are made provide the above-described properties of each of the threads, and also allow achieving a total linear density of 320 to 450 tex, while maintaining the comfort when wearing a glove. According to an embodiment of the invention, the number of different materials is selected based on: the number of threads, optimal proportions, protective properties and the comfort of the glove. Different materials can also help to improve different protective properties, for example, a flame retardant material makes the entire glove fire resistant. By varying the proportions of the materials and threads of each type used in the knitted glove, the protective and ergonomic properties can be adjusted.

[0018] According to an embodiment of the invention, the total number of threads is between 5 and 20. Knits containing more than 20 threads can also be used, but in most cases the addition of more than 20 threads is not required. More threads in a glove means that the knit is more densely filled. The total number of different materials can be from 3 to 10.

[0019] The total linear density of one or more warp yarns can be from 200 to 350 tex, the total linear density of one or more primary reinforcing threads can be from 50 to 150 tex, and the total linear density of one or more secondary reinforcing threads can be from 8 up to 70 tex. This proportion of linear densities can mean the optimal combination of comfort and protective performance. This proportion also makes it possible to reduce the incidence of defects during the manufacture of the glove due to the uniform filling of the knitted fabric, which is formed at the indicated linear densities.

[0020] In the case where the base material is cotton or reclaimed cotton, the warp thread may further comprise polyester. Cotton threads with polyester are more resistant to wear and tear.

[0021] The primary reinforcing thread includes a primary reinforcing material. This material can be selected from the following materials: polypropylene, aramids, basalt fiber, silica fiber, glass fiber, carbon fiber, and any combination of these. Aramids include para-aramids and other aramid fibers. Materials from the specified list provide good protective properties of the glove, and strong threads are obtained from them.

[0022] According to an embodiment, the secondary reinforcing thread includes a secondary reinforcing material selected from the following materials: polyamide, polyester, elastane, acrylic, nylon, and any combination thereof. These materials can be quite thin and have a low linear density compared to primary reinforcing materials. At the same time, these materials are resistant to abrasion and tearing.

[0023] A knitted glove can be coated with a polymer coating to improve its protective properties.

[0024] According to another aspect of the present invention, there is provided a method of manufacturing a knitted glove with a knitting machine. The method includes: feeding a bundle of threads, including five or more threads, made of three or more different materials, into the knitting machine thread guide; knitting from a bundle of threads of at least eight parts of a glove at a predetermined speed, wherein at least eight parts include: first finger, second finger, third finger, fourth finger, palmar portion adjacent to the first four fingers, thumb, pre-cuff section adjacent with palm and thumb, and elastic cuffs. The method also includes tying adjacent glove parts at a speed of at least 4 times less than a predetermined knitting speed of the glove parts.

[0025] Tying adjacent portions at a speed of at least 4 times the main knitting speed provides increased accuracy when performing complex operations that "fasten" the glove. Also, according to one embodiment of the invention, the beginning of each of the knitting operations of individual parts, for example fingers, can be performed at a speed at least 4 times slower than the main knitting speed. This makes it possible to reduce the number of defects on the fingertips of the glove, because knitting the fingertips of the glove is difficult.

[0026] The method may also include applying a polymer coating to the glove by pressing or spraying under pressure, and then baking. Pressing or spraying under pressure provides an even coating over the surface of the glove and reduces polymer coating consumption. The coating can be absorbed into the glove, in effect saturating the knitted fabric with the polymer coating and thereby forming a new composite glove material.

[0027] In an embodiment, the method also includes treating the cuff of the glove with an overlock. This operation completes the cuff with a “rubber band” that helps to hold the glove on the wrist. The overlocker also protects the glove from self-expansion.

[0028] The method may also include separating the first, second, third, fourth, and thumb from the yarn guide by cutting the bundle of filaments. This allows operations to be performed separately and to be redone in case of defects.

BRIEF DESCRIPTION OF DRAWINGS

[0029] This part of the description provides a brief description of the drawings.

[0030] FIG. 1 depicts a glove and knitted fabric according to an embodiment.

[0031] FIG. 2 depicts a glove and knitted fabric according to another embodiment.

[0032] FIG. 3 is a schematic illustration of a broken knitted glove.

[0033] In the following description, more detailed examples of the implementation of the present invention are presented.

DESCRIPTION OF IMPLEMENTATION OPTIONS

[0034] The following detailed description refers to the accompanying drawings and discloses only specific examples of embodiments, without limiting the present invention to these examples. Similar or equivalent functions and structures can be achieved in other embodiments of the invention.

[0035] FIG. 1 shows a knitted glove 100 comprising a combination of six strands made from three different materials. The total linear density of all threads contained in the fabric of the glove 100 can be from 320 to 450 tex, and in the present example is 410 tex. A region 110 of the knitted fabric, enlarged to show the texture of the knitted fabric, can be selected anywhere on the glove 100.

[0036] In an enlarged region 110 of the knitted fabric, warp threads 111 made of cotton are visible. These 111 threads are the lightest color, almost white, and provide the ergonomic properties of the glove. Cotton can provide elasticity and resistance to cuts and tears, and allows the glove to breathe, which means it has good breathability. The linear density of each of the 111 cotton warp threads is 100 tex. The knitted fabric 110 of the glove 100 contains three warp threads 111, respectively, the total linear density of the warp threads 111 is 300 tex. Cotton warp 111 may also contain polyester.

[0037] The primary reinforcing thread 112 is made of polypropylene and defines the basic protective properties of the glove 100. The polypropylene thread 112 has a dark and dense texture, and in black and white FIG. 1 is black. It gives the glove 100 resistance to mechanical damage. Linear density of the primary reinforcing thread is 78 tex. The knitted fabric 110 of the glove 100 in this example is made using a single primary reinforcing thread 112.

[0038] The secondary reinforcing yarns 113 are made of polyester and, as seen in FIG. 1 are the thinnest yarns passing through the knitted fabric 110. Each polyester yarn 113 has a linear density of 16 tex, and the glove in this example is made using two secondary reinforcement threads 113 with a total total linear density of 32 tex. These threads are “woven” into the knitted fabric and can tie other threads together, improving the overall strength of the glove, while providing additional mechanical protection thanks to the properties of polyester.

[0039] The glove 100 may include overlocked cuffs 101 for comfort. Glove 100, due to the combination of threads and their properties, has a high resistance to cuts, abrasion and vibration.

[0040] FIG. 2 shows a knitted 5-strand glove 200 according to another embodiment of the invention. The total linear density of all threads contained in the glove is 340 tex. The area on the surface of the glove is enlarged in FIG. 2 to demonstrate the structure of the knitted fabric 210, and may be selected anywhere on the glove 200.

[0041] In an enlarged view of the knitted fabric 210, warp threads 211 made from reclaimed cotton are visible. These 211 threads are of the lightest color, almost white, and provide the ergonomic properties of the glove. Regenerated cotton can make the 200 glove elastic, cut and tear resistant, and also provides good breathability. The linear density of each individual warp 211 is 100 tex, and the glove 200 is made using two warp threads so that their total linear density is 200 tex. The warp thread 211 may also contain polyester.

[0042] The primary reinforcing yarns 212 are made of aramid, such as para-aramid synthetic fiber; these threads 212 define the primary barrier properties of the glove 200. The aramid threads 212 have a gray braided texture in FIG. 2. They make the greatest contribution to the mechanical protective properties of the glove 200. The linear density of each individual aramid primary reinforcing thread is 60 tex, and the knitted fabric 210 of the glove 200 is made using two such threads 212. Their total linear density in the knits is 120 tex.

[0043] The secondary reinforcing thread 213 is made of polyester and is visible in FIG. 2 as the thinnest dark colored thread passing through the fabric 210. The polyester thread 213 has a linear density of 20 tex. This thread is “woven” into the knitted fabric and can bind other threads together, improving the overall strength of the glove 200, while providing additional protective properties through the properties of polyester. In this example, the glove 200 is made using a single secondary reinforcing thread 213.

[0044] The glove 200, due to the specified combination of threads and their properties, provides good protection against short-term sudden changes in temperature up to 650 degrees Celsius, and is resistant to abrasion and cuts.

[0045] The gloves 100, 200 shown in FIG. 1 and 2 are only exemplary embodiments of the present invention, and each of the filaments therein may be made from alternative materials. The technical result of increased mechanical, thermal and vibration protection can be achieved with other combinations of materials in a glove, and using a different number of threads. However, to achieve the indicated technical results, the total linear density of all threads in the knitted fabric of the glove must be between 320 and 450 tex; and the linear densities of each of the primary reinforcing, secondary reinforcing and warp yarns should also be in the specified ranges. As it is clear to the expert, the exact values of the linear densities and the number of threads used in the knitted fabric, are presented only as examples. Other values in the specified ranges may be optimal.

[0046] FIG. 3 schematically illustrates a glove 300 divided into numbered portions. A method according to an aspect of the invention is a method for producing a knitted glove with a knitting machine. The method includes feeding a bundle of threads, including five or more threads, made of three or more different materials, into the knitting machine's thread guide. The method further comprises knitting eight pieces of the glove from the bundle of threads at a predetermined speed. These eight parts include: first toe 1, second toe 2, third toe 3, fourth toe 4, palmar part 5 adjacent to the first four fingers 1-4, thumb 6, pre-cuff section 7, adjacent to palmar and thumb. and an elastic cuff 8. The method ends by tying the adjacent portions 1-8 of the glove 300 at a speed at least four times slower than the predetermined knitting speed of the portions of the glove 300.

[0047] Tying the pieces together at a speed that is at least four times slower than the original knitting speed of the individual pieces gives greater precision in complex transition operations. Also, according to an embodiment of the method, the beginning of knitting operations of fingers 1-4 and 6 can be performed at a reduced speed, also four or more times slower than the predetermined knitting speed. This helps to reduce the number of defects that form on the fingertips 1-4, 6 of the glove 300, because knitting the fingertips is also difficult.

[0048] The method may further include applying a polymer coating to the glove by indenting or spraying under pressure, and then baking. Pressing or spraying under pressure provides an even coating over the surface of the glove and reduces polymer coating consumption. The coating can be absorbed into the glove, in effect saturating the knitted fabric with the polymer coating and thereby forming a new composite glove material.

[0049] In an embodiment, the method also includes treating the cuff of the glove with an overlock 310. This operation allows the cuff to be tied with a “rubber band” that helps to hold the glove on the wrist. The Overlock 310 also protects the glove from self-expansion.

[0050] The method may also include separating the first 1, second 2, third 3, fourth 4, and thumb 6 fingers from the yarn guide. This can be done, for example, by cutting off the bundle of threads. The separation of fingers 1-4, 6 from the thread guide allows each finger to be produced separately from the others, and to alter individual parts of the glove in case of defects.

[0051] Although the essence of the invention is set forth in terms of specific structural features and operations, the present invention according to the following claims is not limited to these specific features and operations. These structural features and operations are used only as exemplary embodiments of the invention according to the claims, and other equivalent features and operations are also within the scope of the claims.

[0052] The steps of the method described herein may be performed in any order suitable for performing the method, or simultaneously, when appropriate. Also, certain steps of the method may not be performed for a long time. The features of any of the above-described embodiments of the invention can be combined with the features of any other examples and embodiments without prejudice to the technical result.

[0053] The term "including" is used non-exclusively to mean "incoming" or "contained", and describes the required elements or operations without excluding the presence of other elements or operations.

Claims (24)

1. A knitted glove comprising a knitted fabric of five or more strands made from three or more different materials, the five or more strands comprising: one or more primary reinforcing thread; one or more secondary reinforcing yarn having a lower linear density and greater flexibility than the primary reinforcing yarn; one or more warp thread containing a soft base material; moreover: each warp thread has a linear density of 20 to 125 tex; each primary reinforcing thread has a linear density of 20 to 150 tex; each secondary reinforcing thread has a linear density from 2 to 50 tex and a lower linear density than each primary reinforcing thread of the same glove; and the total linear density of knitted fabrics of five or more threads is from 320 to 450 tex. 2. A knitted glove according to claim 1, wherein the total linear density of one or more warp threads is from 200 to 350 tex, the total linear density of one or more primary reinforcing threads is from 50 to 150 tex, and the total linear density of one or more secondary reinforcing threads threads range from 8 to 70 tex. 3. The knitted glove of claim 1, wherein the soft base material is selected from the following materials: cotton, reclaimed cotton, wool, hemp and linen. 4. A knitted glove according to claim 3, wherein the soft base material is cotton, and the warp thread also contains polyester. 5. The knitted glove of claim 1, wherein the primary reinforcing thread comprises a primary reinforcing material selected from the following materials: polypropylene, aramids, basalt fiber, silica fiber, glass fiber, carbon fiber, and any combination thereof. 6. The knitted glove of claim. 1, wherein the secondary reinforcing thread comprises a secondary reinforcing material selected from the following materials: polyamide, polyester, elastane, acrylic, nylon, and any combination thereof. 7. The knitted glove of claim 1, wherein the total number of threads is from 5 to 20. 8. A knitted glove according to claim 1, wherein the total number of different materials from which the threads are made is from 3 to 10. 9. A knitted glove according to claim 1, coated with a polymer coating. 10. A method for the production of knitted gloves by a knitting machine, including: feeding a bundle of threads, including five or more threads, made of three or more different materials, into the yarn guide of the knitting machine; knitting from a bundle of threads at least eight parts of the glove at a predetermined speed, the eight parts including: first finger, second finger, third finger, fourth finger, palmar portion adjacent to the first four fingers, thumb, pre-cuff section adjacent to the palm portion and thumb and elastic cuffs; and knitting adjacent glove parts at a speed of at least 4 times less than a predetermined knitting speed of the glove parts. 11. A method according to claim 10, also comprising applying a polymer coating to the glove by pressing or spraying under pressure and then baking. 12. The method of claim 10, further comprising treating the cuff of the glove with an overlock. 13. The method of claim 10, further comprising separating the first, second, third, fourth, and thumb from the yarn guide.

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