CN114369897A

CN114369897A - Method for forming anti-counterfeiting feature when fabric is knitted and fabric thereof

Info

Publication number: CN114369897A
Application number: CN202011101000.2A
Authority: CN
Inventors: 廖志文
Original assignee: British Virgin Islands Shanghengsheng Intelligent System Integration Co ltd
Current assignee: British Virgin Islands Shanghengsheng Intelligent System Integration Co ltd
Priority date: 2020-10-15
Filing date: 2020-10-15
Publication date: 2022-04-19

Abstract

The invention discloses a method for forming anti-counterfeiting characteristics when a fabric is knitted and the fabric thereof, wherein a body of the fabric is knitted by at least one first yarn, part of the fabric comprises a plurality of characteristic yarn loops formed by a second yarn, the characteristic yarn loops form the anti-counterfeiting characteristics, the anti-counterfeiting characteristics can be directly observed from one surface of the fabric, the second yarn is formed by twisting at least two sub-yarns with different colors, the colors of the two sub-yarns and the first yarn are different from each other, and the colors of the characteristic yarn loops exposed on the surface are randomly changed. The anti-counterfeiting feature is directly formed on the fabric in the weaving process, and random variation which is difficult to copy exists in the anti-counterfeiting feature through the randomness of yarn twisting, so that a layman is prevented from counterfeiting the fabric.

Description

Method for forming anti-counterfeiting feature when fabric is knitted and fabric thereof

Technical Field

The present invention relates to a method of producing a security feature on a fabric and a fabric produced thereby, and more particularly to a method of forming a security feature through a fabric structure when a fabric is knitted and a fabric produced thereby.

Background

Through investigation, counterfeiting behaviors are prevalent in the current fabric market, meanwhile, things such as genuine products with more than authorized amount flow out from a factory are more easily generated in the fabric market, and revenues and reputations of brand merchants and sellers are affected, so that the brand merchants and the sellers are mostly dedicated to adding anti-counterfeiting marks on the fabrics for consumers to identify the authenticity of the fabrics.

In addition, after the fabric is woven, anti-counterfeiting identification tags are hung on the fabric by brand merchants or sellers in most of the existing markets. However, the conventional anti-counterfeiting method of additionally adding the anti-counterfeiting identification tag still hardly avoids the situation that a manufacturer produces counterfeit fabrics by self. Specifically, since the conventional fabric is easily imitated, it is still possible for a layman to hang the anti-counterfeiting identification tag on the imitated fabric after the imitation fabric is woven, and to attempt to confuse the genuine article and the counterfeit article.

Disclosure of Invention

The main purpose of the invention is to solve the problem that the anti-counterfeiting mechanism adopted by the conventional fabric is still easy to be imitated.

The secondary purpose of the invention is to solve the manufacturing process problem that the anti-counterfeiting mechanism can be attached to the fabric only by additional processing of the conventional fabric.

To achieve the above object, the present invention provides a method for forming a security feature while knitting a fabric, comprising:

knitting a fabric with at least a first yarn using a knitting machine;

feeding a second yarn, and knitting the second yarn to a position of the fabric, which is preset to form an anti-counterfeiting feature, by the knitting machine, wherein the second yarn is formed by twisting at least two sub-yarns with different colors, the colors of the two sub-yarns are different from that of the first yarn, so that a plurality of feature yarn loops formed by the second yarn can be observed on one surface of the fabric at the position, the colors of the feature yarn loops exposed on the surface are changed randomly, and the feature yarn loops form the anti-counterfeiting feature; and

stopping feeding the second yarn when the knitting machine is knitted to a position where the fabric is not scheduled to form the anti-counterfeiting feature, and enabling the knitting machine to continuously knit the first yarn to generate the fabric.

In one embodiment, the two sub-yarns belong to the same hue in a natural color system and are separated by at least three color levels.

In one embodiment, the two sub-yarns are respectively positioned on different hues of a natural color system, and a hue angle is formed between the two hues, and the hue angle is greater than or equal to 30 degrees.

In one embodiment, the two sub-yarns cannot be pure white, pure black, or gray mixed in proportion with pure white or pure black.

In one embodiment, the two sub-yarns cannot be reflective yarns.

In one embodiment, when the first yarn and the two sub-yarns belong to the same color phase in a natural color system, the first yarn is separated from the two sub-yarns by at least three color levels.

In one embodiment, the first yarn and the second yarn are respectively located on different hues of the natural color system, and a hue angle is formed between any two hues, and each hue angle is greater than or equal to 30 degrees.

In one embodiment, the security feature has an overall width of greater than or equal to 1 inch.

In one embodiment, the needle pitch setting range of the knitting machine is 5G to 20G.

In one embodiment, the featured yarn loops are arranged in at least one columnar pattern on the fabric.

In addition to the foregoing, the present invention also provides a fabric with an anti-counterfeiting feature formed during knitting, wherein the fabric is knitted with at least one first yarn, a part of the fabric comprises a plurality of feature loops formed by a second yarn, the feature loops form an anti-counterfeiting feature, the anti-counterfeiting feature can be directly observed from a surface of the fabric, the second yarn is formed by twisting at least two sub-yarns with different colors, the colors of the two sub-yarns are different from that of the first yarn, and the colors of the feature loops exposed on the surface are randomly changed.

In one embodiment, the two sub-yarns are respectively positioned on different hues of a natural color system, and a hue angle is formed between the two hues, and each hue angle is greater than or equal to 30 degrees.

In one embodiment, the two sub-yarns cannot be pure white, pure black or gray mixed in proportion with pure white and pure black.

In one embodiment, the two sub-yarns cannot be reflective yarns.

In one embodiment, each of the feature loops is exposed on the surface to a width greater than or equal to 1 mm.

Compared with the prior art, the invention has the following characteristics: the present invention makes the fabric difficult to counterfeit by forming the security feature directly on the fabric during the weaving process, and by the random color variation on the loops forming the security feature.

Drawings

FIG. 1 is a schematic representation of a fabric according to an embodiment of the present invention.

FIG. 2 is a schematic view of an NCS color ring according to an embodiment of the present invention.

FIG. 3 is a schematic diagram of an NCS color triangle according to an embodiment of the present invention.

FIG. 4 is a schematic diagram illustrating steps according to an embodiment of the present invention.

Wherein, the reference numbers:

.

A

.

The

A

.

29. A

.

71.

.

73.

Detailed Description

The present invention is described in detail and technical content with reference to the accompanying drawings, wherein:

referring to fig. 1-4, a method 70 of forming a security feature during knitting and a fabric 10 thereof are provided, and prior to describing the method 70, the fabric 10 will be described first for ease of understanding. The fabric 10 of the present invention may be used to make a garment, a shoe or a package, the fabric 10 being basically knitted by a knitting machine (not shown) which may be a warp knitting machine or a weft knitting machine, including a circular knitting machine or a flat knitting machine. Furthermore, the body of the fabric 10 includes a plurality of loops 11, the loops 11 are formed by weaving at least one first yarn 111, a part of the fabric 10 includes a plurality of characteristic loops 12, the characteristic loops 12 are formed by a second yarn 121, the characteristic loops 12 form a security feature 13, and the security feature 13 can be directly observed from one side surface of the fabric 10.

Further, the first yarn 111 of the present invention has at least one yarn, that is, the first yarn 111 may be formed by combining a plurality of yarns, or by twisting a plurality of yarns by a yarn twisting technique. In addition, the second yarn 121 for forming the characteristic loops 12 is formed by twisting at least two

sub-yarns

122, 123 by a twisting technique, so that after the second yarn 121 is knitted to form the characteristic loops 12, the color displayed on one side surface of the fabric 10 by each characteristic loop 12 is not fixed, but randomly changed. By way of example, referring to fig. 1 of the present invention, one of the two

sub-yarns

122, 123 is represented by a dot pattern, the other of the two

sub-yarns

122, 123 is not represented by a dot pattern, and after the two

sub-yarns

122, 123 are twisted, the dot patterns of the characteristic yarn loops 12 on one side surface of the fabric 10 are randomly distributed. That is, the color of one of the characteristic loops 12 may be fully represented by one of the two

sub-yarns

122, 123, or the color distribution of one of the characteristic loops 12 is randomly generated by the two

sub-yarns

122, 123.

Accordingly, the color of the characteristic loops 12 exposed on one side of the fabric 10 varies randomly, such that the security feature 13 is different on different fabrics 10, thereby preventing others from counterfeiting the security feature 13 and thus preventing others from counterfeiting the fabric 10.

On the other hand, in order to highlight the security feature 13, the present invention makes the colors of the two

sub-yarns

122, 123 and the first yarn 111 not close to each other. The present invention further explains the foregoing discrepancies in terms of the Natural color System (Natural color System). In one embodiment, when the two

sub-yarns

122, 123 belong to the same color phase in the natural color system, the two

sub-yarns

122, 123 need to be separated by at least three color levels. Specifically, as shown in fig. 2 and 3, the natural color system is an NCS color Circle (NCS color Circle)20 formed by four color reference colors (NCS elementary color), yellow 21, red 22, blue 23 and green 24, when the two sub-yarns 122, 123 belong to the Y90R hue of the natural color system and one color level of the two sub-yarns 122, 123 is selected to be located at the S1050 color level (NCS color Triangle)25 (NCS color Triangle) as shown in fig. 3, the other color level of the two sub-yarns 122, 123 is selected to be located at least three color levels (S1020 color level 27) or S6030 color level (NCS color Triangle) as shown in fig. 3, that is, one of the two sub-yarns 122, 123 has color numbers S1020-Y90R, and the other of the two sub-yarns 122, 123 has color numbers S6390-R or 6030 color levels as S6335, in other words, if one of the color levels of the two sub-yarns 122, 123 is selected to be located at the S1050 color level (e.g., 26) of the NCS color triangle 25 as shown in FIG. 3, the other color level of the two sub-yarns 122, 123 needs to be separated by at least three color levels, so the present invention must exclude the selection of the S1070, S1060, S1040, S1030, S2060, S2050, S2040, S2030, S3050, S3040 and S3030 color levels (11 color levels are not numbered in FIG. 3). In another embodiment, when the two

sub-yarns

122, 123 are located on different hues, the included angle between the two hues forms a hue angle 29, 30 (as shown in fig. 2), and the

hue angle

29, 30 needs to be greater than or equal to 30 degrees. For example, when one hue of the two

sub-yarns

122, 123 is selected to be Y10R hue, and the other hue of the two

sub-yarns

122, 123 is selected, the invention should exclude selecting hues between Y10R and Y50R or hues between Y10R and G70Y. In addition, in one embodiment, the colors of the two

sub-yarns

122, 123 are different from the color of the first yarn 111. Specifically, when the two

sub-yarns

122 and 123 and the first yarn 111 belong to the same color phase in the natural color system, the two

sub-yarns

122 and 123 respectively have to be separated from the first yarn 111 by at least three color steps, and when the two

sub-yarns

122 and 123 and the first yarn 111 are respectively located on different color phases, an included angle between any two color phases is greater than or equal to 30 degrees.

In one embodiment, to avoid the situation that the two

sub-yarns

122, 123 cannot be used by an identification module to identify the security feature 13 because the two

sub-yarns

122, 123 absorb light when the two

sub-yarns

122, 123 capture images by a camera unit (not shown) of the identification module, the two

sub-yarns

122, 123 are set to be not black. In addition, if the two

sub-yarns

122 and 123 generate a large amount of light reflection in the process of shooting, the identification module cannot identify the light reflection, so that the two

sub-yarns

122 and 123 cannot be light reflection yarns or metal yarns generating a large amount of light reflection effects. Similarly, since white light is projected to generate a large amount of reflected light, the two

sub-yarns

122 and 123 may not be pure white or gray mixed by pure white and pure black in proportion.

Referring to fig. 1-4, a method 70 of forming a security feature 13 during knitting according to the present invention is further described, where the method 70 is performed by any of the knitting machines described above, and the method 70 includes the following steps:

step 71, knitting the fabric 10 with the first yarn 111 by the knitting machine;

step 72, feeding the second yarn 121 while the knitting machine is knitting to the predetermined position of the fabric 10 to form the security feature 13;

step 73, stopping feeding the second yarn 121, knitting the knitting machine to a position where the fabric 10 is not predetermined to form the security feature 13, and continuing to knit the knitting machine with the first yarn 111 to produce the fabric 10.

Specifically, the knitting machine initially forms the body of the fabric 10 (i.e., the loops 11) with the first yarn 111, and then feeds the second yarn 121 instead of the first yarn 111 when the knitting machine is knitted to a position predetermined to form the security feature 13, or feeds the second yarn 121 to knit with the first yarn 111 in an increased manner when the knitting machine normally feeds the first yarn 111, or feeds the second yarn 121 to knit with the first yarn 111 in an embedded manner (e.g., US9644291B1) when the knitting machine normally feeds the first yarn 111, so that the security feature 13 is directly formed on the fabric 10 at the position predetermined to form the security feature 13, and the security feature 13 is formed on the surface of the fabric 10. Also, since the second yarn 121 may be twisted by the two

sub-yarns

122 and 123, the color of the second yarn 121 exposed on one side surface may be randomly changed. Thereafter, in step 73, the knitting machine stops feeding the second yarn 121 and continues knitting with the first yarn 111 until the knitting machine knits the fabric 10 at a location where the security feature 13 is not intended to be formed.

In summary, the present invention forms the characteristic yarn loops 12 by the techniques of yarn changing and jacquard weave during the knitting process of the knitting machine, so that the anti-counterfeiting characteristic 13 can be directly formed during the weaving process of the fabric 10, and simultaneously, the present invention also generates the random distribution of the color of each characteristic yarn loop 12 on one surface of the fabric 10 by the randomness generated by the twisting of the second yarn 121 by the two

sub-yarns

122 and 123, and achieves the anti-counterfeiting effect by the randomly generated particularity, and the anti-counterfeiting characteristic is the structure of the fabric 10 itself, thereby further increasing the counterfeiting difficulty.

In the above, although the present invention is described by way of example only, the characteristic yarn loops may be in other patterns according to design besides a cylindrical pattern. In one embodiment, the overall width 131 of the security feature 13 is greater than or equal to 1 inch.

Furthermore, because the first yarn 111 and the second yarn 121 have tension, the first yarn 111 and the second yarn 121 will produce shrinkage after knitting is completed. To avoid the warp yarn tension of the security feature 13 from shrinking too little to be easily identified, the stitch length of the knitting machine is set to be in the range of 5G to 20G, i.e., the stitch length of the knitting machine is 5 to 20 stitches per inch, so that the width 132 of the feature loops 12 knitted by the knitting machine can be still greater than or equal to 1 millimeter (mm) after being tensioned, so as to identify the security feature 13.

The present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it is therefore intended that all such changes and modifications as fall within the true spirit and scope of the invention as defined by the appended claims be interpreted in accordance with the breadth to which they are fairly, if not explicitly recited herein.

Claims

1. A method of forming a security feature upon knitting a fabric, comprising:

knitting a fabric with at least a first yarn using a knitting machine;

2. The method of claim 1, wherein the two sub-yarns are of the same hue in a natural color system and are separated by at least three steps.

3. The method of claim 1, wherein the two sub-yarns are respectively located on different hues of a natural color system, and a hue angle is formed between the two hues, the hue angle being greater than or equal to 30 degrees.

4. A method of forming a security feature when a fabric is knitted according to any one of claims 1 to 3 wherein the two sub-yarns are not solid white, solid black or a grey colour which is a mixture of solid black and solid white in proportion.

5. The method of forming a security feature when knitting a fabric of claim 4 wherein the two sub-yarns are not retroreflective yarns.

6. The method of claim 2 or 3, wherein when the first yarn and the two sub-yarns are in the same color phase in the natural color system, the first yarn is separated from the two sub-yarns by at least three color steps.

7. The method of claim 2 or 3, wherein the first yarn and the second yarn are located on different hues of the natural color system, and a hue angle is formed between any two hues, each hue angle being greater than or equal to 30 degrees.

8. The method of forming a security feature when knitting a fabric of claim 7 wherein the security feature has an overall width of greater than or equal to 1 inch.

9. The method of claim 8, wherein the stitch gauge of the knitting machine is set to a range of 5G to 20G.

10. The method of claim 9, wherein the plurality of feature coils are arranged in at least one columnar pattern on the fabric.

11. A fabric that forms a security feature when knitted, the fabric produced by knitting at least a first yarn, the fabric characterized by:

the fabric locally comprises a plurality of characteristic yarn loops formed by second yarns, the characteristic yarn loops form an anti-counterfeiting characteristic, the anti-counterfeiting characteristic can be directly observed from one surface of the fabric, the second yarns are formed by twisting at least two sub-yarns with different colors, the colors of the two sub-yarns are different from that of the first yarns, and the colors of the characteristic yarn loops exposed on the surface are changed randomly.

12. The fabric of claim 11, wherein the two sub-yarns are of the same hue in a natural color system and are separated by at least three steps.

13. The fabric according to claim 11, wherein the two sub-yarns are respectively located on different hues of a natural color system, and a hue angle is formed between the two hues, the hue angle being greater than or equal to 30 °.

14. A fabric which when knitted forms a security feature as claimed in any one of claims 11 to 13 wherein the two sub-yarns are not pure white, pure black or a grey colour blended in proportion with pure white or pure black.

15. The fabric which forms a security feature when knitted according to claim 14, wherein the two sub-yarns are not reflective yarns.

16. The fabric of claim 11, wherein the first yarn is separated from the two sub-yarns by at least three color steps when the first yarn and the two sub-yarns are in the same color phase in a natural color system.

17. The fabric according to claim 12 or 13, wherein the first yarn is separated from the two sub-yarns by at least three color steps when the first yarn and the two sub-yarns belong to the same color phase in the natural color system.

18. The fabric according to claim 12 or 13, wherein the first yarn and the two sub-yarns are located on different hues of the natural color system, and a hue angle is formed between any two hues, each hue angle being greater than or equal to 30 °.

19. The fabric that forms a security feature when knitted according to claim 18, wherein the security feature has an overall width of greater than or equal to 1 inch.

20. The fabric of claim 19 in which each of the feature loops is exposed on the surface to a width of greater than or equal to 1 mm.