WO2018124947A2 - Knitted glove and method for manufacturing same - Google Patents

Abstract

The invention relates to knitted gloves and to methods for producing same. A knitted glove, according to an aspect of the invention, comprises a knitted article composed of five or more yarns formed from three or more different materials. The yarns comprise one or more than one primary reinforcing yarn; one or more than one secondary reinforcing yarn having a lower linear density and greater flexibility than the primary reinforcing yarn; and one or more than one main yarn comprising a soft main material. Each main yarn has a linear density of 20 to 125 tex, each primary reinforcing yarn has a linear density of 20 to 150 tex, each secondary reinforcing yarn has a linear density of 2 to 50 tex and a lower linear density than each primary reinforcing yarn of the same glove. The general linear density of a knitted article composed of five or more yarns is 320 to 450 tex.

Description

 KNITTED GLOVE AND METHOD FOR ITS MANUFACTURE

FIELD OF THE INVENTION

 This invention relates to knitwear, and in particular to knitted work gloves.

BACKGROUND

 [0001] 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 in whole, sewn from two halves or in parts made separately from each other.

 [0002] Work gloves help protect hands from various hazards. These factors are also divided into categories, such as biological (protection against which rubber medical gloves usually provide), chemical, mechanical, short-term and long-term thermal, weather, vibration and others. Mechanical factors include any source of danger that could lead to cuts, abrasion, or puncture of the skin.

[0003] Short-term thermal protection is needed in situations where sudden temperature jumps are possible due to interaction with hot surfaces, flames, sparks, or extremely low temperatures. Long-term thermal protection is usually required in cold weather.

[0004] Vibration protection provides safe operation with vibrating devices that could be harmful to hands. Examples of such devices include trimmers, drills, jack hammers and other tools.

 [0005] Mechanical, thermal, and vibrational protection is typically provided either by using dense woven materials in work gloves and mittens, which makes the glove uncomfortable, or by coating the gloves with protective polymers. Most polymer coatings also reduce the usability of the gloves, at least due to poor air exchange leading to sweating of the palms.

[0006] A knitted fabric in knitted gloves is usually thin, has a low linear density (approximately 200 tex), and is made of one or two materials. A knitted glove without a polymer coating may be convenient to use, however, to provide protection from the above-mentioned hazards, a multilayer polymer coating is usually required, which significantly reduces usability. Coverage also does not provide protection against all factors.

[0007] The industrial production of knitted gloves is automated. There are several types of knitting machines on the market that differ 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

 [0008] 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.

[0009] According to a first aspect of the present invention, there is provided a knitted glove comprising a knit of five or more threads made of three or more different materials. Five or more threads include one or more primary reinforcing threads, one or more secondary reinforcing threads, and one or more main threads. Knitwear for a glove of five or more threads is made of a composite knitted material made of five or more threads (that is, from a bundle of threads in which five or more threads). Thus, the number of threads of a certain type in the glove represents their proportion in the material with respect to threads of other types. The linear density of threads from a certain material in a knitwear directly depends on the total number of threads from this material, however, each individual thread can have a linear density that differs from the linear density of other threads. The linear densities of the threads most clearly reflect the proportions of each of three or more materials in the glove’s knitwear, so the linear densities will be used in the present description along with the number of threads used in the manufacture of the glove.

[0010] The primary reinforcing yarns defines the basic protective properties of a knitted glove. Basic protective properties may include mechanical, vibrational or thermal protection, or any combination of these properties. The primary reinforcing threads can be made of various reinforcing materials that provide these protective properties, as described below in the description of embodiments of the invention.

 [UN] Secondary reinforcing threads have lower linear density and greater flexibility than primary reinforcing threads. This means, among other things, that individual secondary reinforcing threads are thinner than individual primary reinforcing threads. The lower linear density and thickness allow the secondary reinforcing yarns to occupy the space between the denser primary reinforcing yarns and the main yarns. Secondary reinforcing threads may also surround other threads and / or bind primary reinforcing threads to the main threads. This improves the protective properties of the glove, as the material becomes more durable and densely filled, and the elasticity of the glove does not deteriorate.

 [0012] The warp yarns contain a soft warp material that defines the elastic and ergonomic properties of a knitted glove. These properties may include tactile sensations, elasticity in all directions, and breathability to prevent palm sweating. The elasticity of the warp threads, combined with the protective properties of the reinforcing threads, can also enhance resistance to cuts, abrasion and punctures.

[0013] Each individual main yarn 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 thread. The total (total) linear density of five or more threads contained in a knitted glove is from 320 to 450 tex. The total linear density of the main threads may be higher than the total linear density of all other threads.

[0014] Such a combination of linear density ranges by type of yarn, and the indicated total linear density, provide optimal protective properties of the glove. These properties may include any combination of: protection from cuts, abrasion, punctures, tearing gloves; protection against fire or other sudden temperature changes; protection against short-term effects of various liquids; vibration protection; and protection against dirt and dust. [0015] A set of five or more threads makes it easy to achieve a total linear density of 320 to 450 tex. The number of threads of more than five gives the best mechanical and other protective properties of the glove than a glove with fewer threads, but the same overall linear density. The combination of different types of threads further enhances the knitted fabric.

 [0016] The number of different materials of which the threads are made provide the above properties of each of the threads, and also allow to achieve a total linear density of from 320 to 450 tex, while maintaining 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, the optimal proportions, the protective properties and the comfort of the glove. Different materials can also contribute to the improvement of various protective properties, for example, a fire-resistant material makes the entire glove resistant to fire. By changing the proportions of the materials and yarns of each type used in a knitted glove, it is possible to adjust the protective and ergonomic properties.

 [0017] According to an embodiment of the invention, the total number of threads is between 5 and 20. Knitwear containing more than 20 threads can also be used, but in most cases adding more than 20 threads is not required. More threads in the glove means that the knitwear is more tightly filled. The total number of different materials can be from 3 to 10.

 [0018] 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 yarns can be from 50 to 150 tex, and the total linear density of one or more secondary reinforcing yarns can be from 8 up to 70 tex. This proportion of linear densities can mean the optimal combination of comfort and protective features. This proportion also allows to reduce the frequency of formation of defects during the production of gloves due to the uniform filling of the knitted fabric, which is formed at the indicated linear densities.

[0019] In the case where the main material is cotton or regenerated cotton, the main thread may further include polyester. Cotton threads with polyester are more wear resistant. [0020] The primary reinforcing thread includes primary reinforcing material. This material can be selected from the following materials: polypropylene, aramids, basalt fiber, silica fiber, fiberglass, carbon fiber, and any combination thereof. Aramids include para-aramids and other aramid fibers. The materials from this list provide good protective properties of the glove, and strong threads are obtained from them.

 [0021] 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 in comparison with primary reinforcing materials. At the same time, these materials are resistant to abrasion and tearing.

 [0022] The knitted glove may be coated with a polymer coating to improve its protective properties.

[0023] According to another aspect of the present invention, a method for manufacturing a knitted glove with a knitting apparatus is provided. The method includes: feeding into the yarn guide of a knitting apparatus a bundle of threads comprising five or more threads made of three or more different materials; knitting from a bundle of threads at least eight parts of the glove at a predetermined speed, and at least eight parts include: first finger, second finger, third finger, fourth finger, palm part adjacent to the first four fingers, thumb, pre-cuff section, adjacent with palm and thumb, and elastic cuffs. The method also includes binding the adjacent parts of the glove at a speed at least 4 times lower than the predetermined speed of knitting the parts of the glove.

[0024] The bonding of adjacent parts at a speed at least 4 times lower than the main knitting speed, provides increased accuracy when performing complex operations, “holding” the glove. Also, according to one embodiment of the invention, the beginning of each of the knitting operations of the individual parts, for example fingers, can be performed at a speed at least 4 times lower than the main knitting speed. This reduces the number of defects at the fingertips of the glove, because knitting the fingertips of the glove is a complex operation. [0025] The method may also include applying a polymer coating to the glove by pressing or spraying under pressure, and then baking. Indentation or spraying under pressure provides uniform coverage over the surface of the glove, and reduces the consumption of polymer coating. The coating can be absorbed into the glove, essentially saturating the knitted fabric with a polymer coating and thereby forming a new composite glove material.

 [0026] According to an embodiment, the method also includes processing the cuff of the glove with an overlock. This operation allows you to complete the cuffs with an “elastic band”, which helps to keep the glove on your wrist. Overlock also protects the glove from self-dissolving.

 [0027] The method may also include separating the first, second, third, fourth and thumb from the yarn guide by cutting the bundle of threads. This allows you to do operations separately, and redo them in case of defects.

BRIEF DESCRIPTION OF THE DRAWINGS

 [0028] This section of the description provides a brief description of the drawings.

 [0029] In FIG. 1 shows a glove and a knitted fabric according to an embodiment.

 [0030] In FIG. 2 shows a glove and a knit fabric according to another embodiment.

 [0031] FIG. 3 is a schematic illustration of a knitted glove broken into pieces.

[0032] In the following description, more detailed embodiments of the present invention are presented. DESCRIPTION OF EMBODIMENTS

 [0033] A further detailed description relates to the accompanying drawings and discloses only certain examples of embodiments, without limiting the present invention to these examples. Similar or equivalent functions and structures may be achieved in other embodiments of the invention.

[0034] FIG. 1, a knitted glove 100 is shown including a combination of six threads made of three different materials. The total linear density of all threads contained in the glove sheet 100 can be from 320 to 450 tex, and in the present example is 410 tex. Section 1 10 knitted fabric, enlarged to demonstrate the structure of knitwear, can be selected anywhere on the glove 100.

 [0035] In the enlarged section 1 10 of the knitted fabric, the main threads 1 1 1 made of cotton are visible. These threads 11 have the lightest color, almost white, and provide ergonomic properties of the glove. Cotton can provide elasticity and resistance to cuts and tears, and also allows the glove to "breathe", that is, it has good breathability. The linear density of each of the cotton warp yarns 1 1 1 is 100 tex. Knitted fabric 1 10 gloves 100 contains three main threads 11 1, respectively, the total linear density of the main threads 1 1 1 is 300 tex. Cotton warp threads 1 1 1 may also contain polyester.

[0036] The primary reinforcing thread 1 12 is made of polypropylene and determines the basic protective properties of the glove 100. Polypropylene thread 1 12 has a dark and dense texture, and in black and white FIG. 1 has a black color. It gives the glove 100 resistance to mechanical damage. The linear density of the primary reinforcing filament is 78 tex. Knitted fabric 1 10 gloves 100 in this example is made using one primary reinforcing thread 1 12.

 [0037] The secondary reinforcing threads 1 13 are made of polyester and, as can be seen from FIG. 1 are the thinnest threads passing through the knitted fabric 1 10. Each polyester thread 1 13 has a linear density of 16 tex, and the glove in this example is made using two secondary reinforcing threads 1 13 with a total total linear density of 32 tex. These threads are “woven” into a knitted fabric and can bind other threads together, improving the overall strength of the glove, while at the same time providing additional mechanical protection due to the properties of polyester.

 [0038] The glove 100 may include an overlock treated cuff 101 for ease of wearing. Glove 100, due to the combination of threads and their properties, has high resistance to cuts, abrasion and vibration.

[0039] FIG. 2 shows a knitted glove 200 made of 5 threads according to another embodiment of the invention. The total linear density of all the threads contained in the glove is 340 tex. Surface area gloves enlarged in FIG. 2 to demonstrate the structure of the knitted fabric 210, and can be selected anywhere on the glove 200.

 [0040] In the enlarged image of the knitted fabric 210 visible main threads 21 1 made from regenerated cotton. These threads 21 1 have the lightest color, almost white, and provide ergonomic properties of the glove. Regenerated cotton can make the glove 200 elastic, resistant to cuts and tears, and also provides good breathability. The linear density of each individual warp yarn 21 1 is 100 tex, and the glove 200 is made using two warp yarns, so that their total linear density is 200 tex. The main thread 21 1 may also contain polyester.

 [0041] The primary reinforcing threads 212 are made of aramid, for example, para-aramid synthetic fiber; these threads 212 define the primary protective properties of the glove 200. The aramid threads 212 have a gray woven 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 knit is 120 tex.

[0042] The secondary reinforcing thread 213 is made of polyester and is visible in FIG. 2 as the thinnest thread of dark color passing through the web 210. The polyester yarn 213 has a linear density of 20 tex. This thread is “woven” into the knitted material and can bind other threads together, improving the overall strength of the glove 200, and at the same time provides additional protective properties due to the properties of polyester. In this example, the glove 200 is made using one secondary reinforcing thread 213.

 [0043] Glove 200, due to the combination of threads and their properties, provides good protection against short-term sudden changes in temperature up to 650 degrees Celsius, and is also resistant to abrasion and cuts.

[0044] The gloves 100, 200 shown in FIG. 1 and 2 are only examples of the implementation of the present invention, and each of the threads in them can be made of alternative materials. The technical result of increased mechanical, thermal and vibrational protection can be achieved by other combinations of materials in the glove, and using a different number of threads. However to achieve the specified technical results, the total linear density of all threads in the knitted fabric of the glove should 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 indicated 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 indicated ranges may be optimal.

 [0045] FIG. 3 schematically illustrates a glove 300 divided into numbered parts. The method according to an aspect of the invention is a method for manufacturing a knitted glove with a knitting apparatus. The method includes feeding into the yarn guide of a knitting apparatus a bundle of threads comprising five or more threads made of three or more different materials. The method further comprises knitting eight parts of the glove from a bundle of threads at a predetermined speed. These eight parts include: the first finger 1, the second finger 2, the third finger 3, the fourth finger 4, the palm part 5 adjacent to the first four fingers 1 to 4, the thumb 6, the pre-cuff section 7 adjacent to the palm part and the thumb, and elastic cuffs 8. The method ends with the binding of adjacent parts 1-8 of the glove 300 at a speed of at least four times lower than the predetermined knitting speed of the glove parts 300.

[0046] Linking the parts together at a speed at least four times lower than the original knitting speed of the individual parts gives greater accuracy in complex transient operations. Also, according to an embodiment of the method, the beginning of the knitting operations of the fingers 1 -4 and 6 can be performed at a reduced speed also four or more times lower than the predetermined knitting speed. This helps to reduce the number of defects that form on the tips of the fingers 1-4, 6 of the glove 300, because knitting the tips of the fingers is also a difficult operation.

[0047] The method may further include applying a polymer coating to the glove by pressing or spraying under pressure, and then baking. Indentation or spraying under pressure provides uniform coverage over the surface of the glove, and reduces the consumption of polymer coating. The coating can soak into the glove, essentially saturating the knit the fabric is polymer coated and thereby forms a new composite glove material.

 [0048] According to an embodiment, the method also includes processing the cuff of the glove with an overlock 310. This operation allows the cuffs to be bandaged with an “elastic band” that helps to keep the glove on the wrist. Overlock 310 also protects the glove from self-dissolving.

 [0049] The method may also include separating the first 1, second 2, third 3, fourth 4, and thumb 6 from the yarn guide. This can be done, for example, by cutting the bundle of threads. Separation of fingers 1 -4, 6 from the yarn guide allows each finger to be made separately from the others, and redo individual parts of the glove in case of defects.

 [0050] Although the essence of the invention is set forth through specific structural features and operations, the present invention according to the following formula is not limited to these specific features and operations. These structural features and operations are used only as examples of carrying out the invention according to the claims, and other equivalent features and operations also belong to the scope of claims of the claims.

[0051] The operations of the method described herein can be performed in any suitable manner for performing the method, or simultaneously, when appropriate. Also, certain operations of the method may not be performed for a long time. The features of any of the above embodiments may be combined with the features of any other examples and embodiments without affecting the technical result.

 [0052] The term "including" is used non-exclusively in the meaning of "incoming" or "contained", and describes the necessary elements or operations, not excluding the presence of other elements or operations.

Claims

CLAIM  1. A knitted glove comprising a knitwear of five or more threads made of three or more different materials, wherein five or more threads include: one or more primary reinforcing thread; one or more secondary reinforcing thread having a lower linear density and greater flexibility than the primary reinforcing thread; one or more warp yarns containing soft warp material; moreover: each warp yarn has a linear density of from 20 to 125 tex; each primary reinforcing thread has a linear density of from 20 to 150 tex; each secondary reinforcing thread has a linear density of 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 a knitwear of five or more threads is from 320 to 450 tex. 2. Knitted glove according to claim 1, in which the total linear density of one or more of the main 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 filaments is from 8 to 70 tex. 3. A knitted glove according to claim 1, wherein the soft base material is selected from the following materials: cotton, regenerated cotton, wool, hemp and linen. 4. A knitted glove according to claim 3, wherein the soft base material is cotton, the main thread also comprising polyester. 5. A knitted glove according to claim 1, in which the primary reinforcing thread includes a primary reinforcing material selected from the following materials: polypropylene, aramids, basalt fiber, silica fiber, fiberglass, carbon fiber, and any combination thereof. 6. Knitted glove according to claim 1, in which the secondary reinforcing thread includes a secondary reinforcing material selected from the following materials: polyamide, polyester, elastane, acrylic, nylon and any combination thereof. 7. Knitted glove according to claim 1, in which the total number of threads is from 5 to 20. 8. A knitted glove according to claim 1, in which the total number of different materials of which the threads are made is from 3 to 10. 9. Knitted glove according to claim 1, coated with a polymer coating. 10. A method of manufacturing a knitted glove with a knitting apparatus, including: feeding into the yarn guide of the knitting apparatus a bundle of threads comprising five or more threads made of three or more different materials; knitting from a bundle of threads of at least eight parts of the glove at a predetermined speed, and eight parts include: first finger, second finger, third finger, fourth finger, palm part adjacent to the first four fingers, thumb, pre-cuff section adjacent to the palm part and thumb, and elastic cuffs; and binding of adjacent parts of the glove at a speed of at least 4 times less than a predetermined knitting speed of the parts of the glove. 11. The method according to p. 10, also comprising applying to the glove a polymer coating by pressing or spraying under pressure, and subsequent baking. 12. The method of claim 10, further comprising processing the glove cuff with the overlock. 13. The method of claim 10, further comprising separating the first, second, third, fourth, and thumb from the yarn guide