Reflective yarn capable of preventing glass beads from falling off
By using a resin-made cladding layer on the reflective yarn to cover glass microbeads, the problem of dropping and color inconsistency in the reflective yarn during the weaving process is solved, and high lumen reflective effect and color consistency are achieved, simplifying the production process.
Patent Information
- Application Number
- CN202510099962.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2024-02-07
- Filing Date
- 2025-01-22
- Publication Date
- 2025-08-08
AI Technical Summary
The glass beads are easily dropped during the weaving process, resulting in damage to the knitting machine, and the colors in different locations are inconsistent, especially the sides of the high lumen reflective yarn are prone to leakage of silver, and it is difficult to produce small quantities of colored reflective yarns.
The resin-made cladding layer is used to coat the reflective yarn to prevent the glass beads from falling off, and a uniform surface color is formed through the color of the cladding layer, simplifying the production process of the reflective film, so that colored reflective yarn can be produced even in small orders.
It effectively prevents glass microbeads from falling, maintains the reflective function without deterioration, solves the mechanical damage problem of reflective yarn during the weaving process, and achieves the consistency of colors at different locations and the high lumen reflective effect, simplifying the production process of reflective yarn.
Smart Images
Figure CN120447116A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to reflective yarn, and in particular, refers to glass beads that can protect the reflective yarn and prevent the glass beads of the reflective yarn from falling off. Background Art
[0002] In the current technology, a reflective yarn is made by cutting a reflective film. Figure 1 A known reflective film 10 with glass beads is cut to form a plurality of Figure 2 The reflective yarn 20 is shown.
[0003] The surface of the base layer 12 of the retroreflective sheeting 10 is bonded to glass beads 16 via a bonding layer 14. A silver-colored reflective layer 18, made of a metallic material such as aluminum or silver, is deposited on the underside of the glass beads 16. When light enters the glass beads 16, the reflective layer 18 reflects the light, causing it to be reflected back from the angle of incidence (retroreflection).
[0004] Cutting the reflective film 10 can produce Figure 2 The reflective yarn 20, with its glass beads 16 and reflective layer 18, reflects light. When woven into a fabric, the resulting fabric exhibits reflective properties. The reflective yarn 20, made with glass beads 16 and a silver or aluminum reflective layer 18, can reflect light with high brightness.
[0005] However, conventional reflective yarns 20 that use glass beads to reflect light have problems with weaving. Because the glass beads 16 are exposed on the surface of the reflective yarn, they can fall off the reflective yarn during weaving and into the weaving machine. This not only affects the reflective performance of the reflective yarn but can also damage the knitting machine. This problem is particularly serious on circular knitting machines or warp knitting machines where the glass beads can become lodged in the needle cylinder of the knitting machine, causing the machine to jam and damage the machine.
[0006] In addition to the issue of glass beads 16 falling off, conventional reflective yarn 20 also suffers from the so-called silver leakage (silver-like appearance) of colored, high-luminance reflective yarn. Conventional methods for coloring reflective yarn 20 involve applying two color layers (not shown) to the top and bottom surfaces of the reflective sheeting 10. More specifically, the color layers are applied to the glass beads 16. As a result, the cut reflective yarn 20 is colored.
[0007] However, if Figure 2 As shown, the color layer is only located where the glass beads 16 are located. The two side surfaces 22 of the reflective yarn 20 do not have a color layer because the two side surfaces 22 are formed after cutting. Figure 2Only the top and bottom surfaces of the reflective yarn 20 are the desired color, leaving the reflective layer 18 exposed on the side surfaces 22 of the reflective yarn. Because the glass beads 16 are transparent, when light is diffused, the side surfaces 22 of the reflective yarn 20 appear entirely silver, the color of the reflective layer 18. This causes the color of the reflective yarn 20 to be inconsistent at different locations, with the side surfaces 22 displaying a different color than the top and bottom surfaces.
[0008] In the prior art, if one wishes to produce colored reflective yarn 20 , one must produce a large number of colored reflective films 10 and then cut the colored reflective yarns. This method does not allow one to produce a small amount of colored reflective films. Summary of the Invention
[0009] The present invention is used to solve the shortcomings of the conventional reflective yarn. One purpose of the present invention is to provide a reflective yarn with glass beads, which can protect the glass beads of the reflective yarn and prevent the glass beads from falling, thereby solving the difficulties encountered by the current industry.
[0010] One object of the present invention is to provide a reflective yarn that prevents glass beads from falling, which can solve the problem of inconsistent colors on different surfaces of known reflective yarns, that is, solve the problem of silver leakage in known high-lumen reflective yarns.
[0011] An object of the present invention is to provide a reflective yarn that prevents glass beads from falling, and the colored reflective yarn can be easily produced with a small amount of reflective film.
[0012] The present invention provides a reflective yarn for preventing glass beads from falling, comprising: a base layer having two surfaces; A plurality of glass beads are adhered to at least one surface of the base layer by at least one adhesive layer to form at least one layer of glass beads; The reflective yarn is formed by laminating the base layer, the glass beads and the adhesive layer, and has two surfaces and side edges other than the two surfaces; the glass beads are disposed on at least one surface of the reflective yarn; and A covering layer is made of resin material and is light-transmissive. The covering layer covers the entire reflective yarn.
[0013] The reflective yarn may further include: at least one reflective layer disposed on the bottom side of the glass beads to reflect light.
[0014] In this way, the glass beads of the reflective yarn are enclosed by the coating layer, which protects the glass beads and prevents them from falling off, so that the reflective yarn can be woven. Even if the reflective yarn is hooked by the hook needles of the circular knitting machine, the glass beads will not fall off or fall off, thereby preventing damage to the knitting machine and maintaining the complete reflective function of the reflective yarn.
[0015] The covering layer covers the glass beads and the side edges of the reflective yarn.
[0016] Preferably, the coating layer is a resin having acrylic acid and silane, or a resin having thermoplastic polyurethane and silane, or a resin having acrylic acid, silane and thermoplastic polyurethane.
[0017] Preferably, the coating layer is a resin containing silane, so that the coating layer has good bonding properties with the glass microbeads.
[0018] Preferably, the coating layer is a colored resin, imparting color to the reflective yarn. The side edges of the reflective yarn adopt the color of the coating layer. The reflective yarn of the present invention is made by cutting reflective film, and the color of the coating layer determines the color of the reflective yarn. Therefore, regardless of whether the reflective yarn is colored, the reflective film does not need to be colored, making the production of the reflective film simpler and more straightforward. Even for small orders of colored reflective yarn, small-scale production is possible without being limited by order size, thus resolving the industry's difficulty in producing small quantities of colored reflective film and yarn.
[0019] The resin of the coating layer is added with a transparent pigment, and the pigment is a transparent dye or colorant.
[0020] Preferably, the coating layer is made of liquid resin that is dried.
[0021] Preferably, the adhesive layer is made of a material containing acrylic acid or a material containing polyurethane, so that the coating layer and the adhesive layer have good bonding properties.
[0022] Preferably, there is a gap between two adjacent glass beads; the coating layer is thicker in each of the gaps. Thus, when the coating layer is colored, more ink, pigment, or color material accumulates in the gaps, making the reflective yarn's color purer and more pronounced.
[0023] The reflective yarn of the present invention cannot be protected with polyvinyl alcohol (PVA) because PVA dissolves in water and becomes sticky in a humid environment. If liquid PVA is applied to the outer surface of the reflective yarn of the present invention, the PVA requires time to cure. Moreover, the viscosity of PVA will cause the reflective yarn to stick together, making it impossible to unwind the yarn. Therefore, PVA cannot be used in the present invention.
[0024] The reflective yarn of the present invention can be a covered yarn structure. At least one covering yarn is wrapped around the outer periphery of the reflective yarn, or at least two covering yarns are wrapped around the outer periphery of the reflective yarn in the S-direction or the Z-direction, forming a reflective composite yarn. The covering yarn wraps the reflective yarn in a manner that exposes more glass beads. Both the reflective yarn and the covering yarn in the reflective composite yarn are coated with a covering layer.
[0025] The present invention provides a reflective yarn (or reflective yarn) with glass microbeads. The glass microbeads allow light to penetrate the yarn. The present invention's technical approach prevents the glass microbeads from falling off the yarn, allowing the reflective yarn to be woven into a fabric without compromising its reflective properties. When the coating layer is colored, different surfaces of the reflective yarn can have the same color. This solves the silver leakage problem associated with conventional colored, high-luminance reflective yarns. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] The objects, features and effects achieved by the present invention can be understood from the following description and drawings of the preferred embodiments, in which: Figure 1 It is a longitudinal cross-sectional schematic diagram of a known reflective film.
[0027] Figure 2 It is a cross-sectional schematic diagram of a known reflective yarn. Figure 1 The reflective film is cut and formed.
[0028] Figure 3 It is a longitudinal cross-sectional schematic diagram of a reflective film disclosed in a preferred embodiment of the present invention.
[0029] Figure 4 This is a three-dimensional schematic diagram of a reflective yarn according to a preferred embodiment of the present invention. Figure 3 Made of reflective film cutting.
[0030] Figure 5 yes Figure 4 Cross-sectional view along line 5-5.
[0031] Figure 6 It is a schematic transverse cross-sectional view of a reflective yarn product according to a first preferred embodiment of the present invention, which has a coating layer.
[0032] Figure 7 show Figure 6 Schematic diagram of the process of wrapping the covering layer with reflective yarn.
[0033] Figure 8 1 is a cross-sectional schematic diagram of a reflective yarn according to a second preferred embodiment of the present invention, which has a coating layer.
[0034] Figure 9 1 is a cross-sectional schematic diagram of a reflective yarn according to a third preferred embodiment of the present invention, which has a coating layer.
[0035] Figure 10 1 is a cross-sectional schematic diagram of a reflective yarn according to a fourth preferred embodiment of the present invention, which has a coating layer.
[0036] Figure 11 Schematic diagram of a reflective yarn product according to a preferred embodiment of the present invention.
[0037] Figure 12 It is a three-dimensional schematic diagram of a reflective composite yarn, which includes the reflective yarn of the present invention and two yarns.
[0038] Figure 13 yes Figure 12 Cross-sectional view along line 13-13.
[0039] Figure 14 A three-dimensional schematic diagram showing a reflective yarn and a yarn forming a kneaded yarn according to the present invention.
[0040] 10 reflective film 12 base layer 14 bonding layer 16 glass beads 18 reflective layer 20 reflective yarn 30 Reflective film 32, 62 base layer 34, 64 glass beads 36, 66 adhesive layer 38, 68 reflective layer 341, 641 gap 40 reflective yarn (without covering layer) 42, 61 side 40A, 60, 80 reflective yarn 50 covering layer A, B roll 52 rollers 54 solution tank 55 resin solution 56 first drying unit 58 second drying unit 70 reflective composite yarn 72, 74 covered yarn 82 Yarn 85 Twisted Yarn DETAILED DESCRIPTION
[0041] The present invention relates to a reflective yarn (or reflective yarn) that prevents glass beads from falling off. The glass beads allow light to penetrate, and the technical means of the present invention prevent the glass beads of the reflective yarn from falling off or falling off the reflective yarn, so that the reflective yarn of the present invention can be woven into a fabric by a weaving machine without reducing the reflective function of the reflective yarn.
[0042] See also Figure 3 , a reflective sheeting 30 comprises a base layer 32 and two layers of glass beads 34. The base layer 32 has two opposite surfaces. The glass beads 34 are adhered to the two surfaces of the base layer 32 by adhesive layers 36. Two reflective layers 38 are disposed beneath the two layers of glass beads 34. In this preferred embodiment, the reflective sheeting 30 has a thickness of approximately 0.1 mm to 0.4 mm, preferably 0.25 mm to 0.35 mm.
[0043] The base layer 32 can be made of an elastic or inelastic polymer. Elastic polymers include, but are not limited to, thermoplastic polyurethane (TPU), polyurethane (PU), thermoplastic elastomer (TPU), thermoplastic rubber (TPR), or silicone. Inelastic polymers include, but are not limited to, polyester, polyethylene terephthalate (PET), rigid polyvinyl chloride (PVC), oriented polypropylene (OPP), or nylon. The base layer 32 can also be made of fabric rather than a polymer.
[0044] The reflective layer 38 is disposed on the bottom side (inner surface) of the layered glass beads 34. The bottom side (inner side) of the glass beads 34 is partially embedded in the adhesive layer 36 and adhered to the base layer 32 via the adhesive layer 36. The top side (outer side) of the glass beads 34 is exposed from the adhesive layer 36.
[0045] The adhesive layer 36 is a resin adhesive. Any resin that can be used as an adhesive can be used as the material of the adhesive layer 36. Preferably, but not limited to this, the adhesive layer 36 is a polyurethane adhesive or an acrylic adhesive.
[0046] The reflective layer 38 is preferably, but not limited to, a light-reflective metal material such as aluminum or silver. It is deposited, sputtered, or chemically coated on the bottom side of the glass beads 34. A reflective layer 38 made of aluminum or silver has a high reflectivity, and the resulting reflective yarn has a high lumen value. Alternatively, the reflective layer 38 can be made of other materials, such as zinc sulfide. Reflective yarns made of zinc sulfide can provide medium lumen values, such as 100 to 200 lumens.
[0047] The reflective film 30 is cut with a cutter along the length direction of the reflective film to form a plurality of reflective yarns 40 . The reflective yarns 40 are of a relatively long length. Figure 4 and Figure 5 A schematic diagram showing a cut reflective yarn 40 is shown, which is a layer formed by stacking the aforementioned base layer 32, glass beads 34, adhesive layer 36 and reflective layer 38, having two opposite surfaces (e.g. Figure 4 and Figure 5 The glass beads 34 are exposed on two surfaces of the reflective yarn 40. Figure 5The side edges (surfaces) 42 of the reflective yarn 40 are cut surfaces and are free of glass beads 34. The glass beads 34 and reflective layer 38 retroreflect light, resulting in a high lumen value. The width of the reflective yarn 40 is between 0.15 mm and 1 mm, preferably between 0.28 mm and 0.50 mm, and even more preferably between 0.30 mm and 0.38 mm. Its thickness is equal to the thickness of the reflective film 30.
[0048] To make Figure 5 The glass beads 34 exposed on the reflective yarn 40 will not fall off or drop off. Figure 6 The present invention is to cover the coating layer 50 of a resin material Figure 5 The entire reflective yarn 40 forms Figure 6 The reflective yarn 40A is covered by the coating 50, and the coating 50 is light-transmissive, allowing light to pass through. In practice, the coating 50 can be transparent and colorless, or have a color, and the color of the coating 50 can be reflected through the reflective yarn 40A to become a colored reflective yarn.
[0049] Figure 7 This is a process diagram showing a preferred embodiment of the present invention in which the coating layer 50 is provided on the outer surface of the reflective yarn 40. As shown in the figure, each cut reflective yarn 40 is released from roll A and guided into a solution tank 54 via a roller 52. The solution tank 54 is filled with a resin solution 55. The reflective yarn 40 is immersed in the resin solution 55 so that the entire outer surface of the reflective yarn 40 is coated with liquid resin. The resin-coated reflective yarn 40A is then removed from the solution tank 54 and the resin coating the reflective yarn is dried using a drying device to form the coating layer 50. The finished reflective yarn 40A is then rolled up for future use, such as into roll B. The drying device can be a single drying unit or a drying unit such as Figure 7 The device shown has multiple drying units. Figure 7 The first drying unit 56 shown can be a hair dryer, a hot roller, or various drying devices with a heating tube; the second drying unit 58 can be a hot roller or a hair dryer. Alternatively, one or more consecutive hot rollers can be used as drying devices to dry the resin coating the reflective yarn 40A.
[0050] In this preferred embodiment, the resin components of the resin solution 55 include silane and a colorant, such as a pigment. The pigment is a highly transparent dye or colorant. This highly transparent pigment has a low light-blocking rate and does not block light from passing through the coating layer 50. The silane can be oily or water-based; the transparent pigment is a highly transparent ink, either water-based or oil-based. The reflective yarn 40 manufactured by the applicant has a lumen value of 600 lumens for its bare yarn, while the reflective yarn 40A with the coating layer 50 still has a lumen value of 400 lumens.
[0051] The resin of the coating layer 50 can be a resin containing acrylic acid and silane, a resin containing thermoplastic polyurethane and silane, or a resin mixed with acrylic acid, silane, and thermoplastic polyurethane. The silane in the resin has good bonding and adhesion properties with both the adhesive layer 36 and the glass beads 34 of the reflective yarn. The silane is compatible with both acrylic and polyurethane resins. Regardless of whether the adhesive layer 36 is an acrylic or polyurethane adhesive, the coating layer 50 can effectively bond with the adhesive layer 34. Furthermore, the silane can capture and retain the glass beads 34, resulting in a strong bond between the silane and the glass beads, making separation difficult.
[0052] In a preferred embodiment of the present invention, one component of the resin solution 55 includes: a pigment (e.g., transparent ink), an additive (i.e., silane), a bridging agent (curing agent), TPU resin, and an organic solvent (VOC). Another component of the resin solution 55 in a preferred embodiment of the present invention includes: a pigment, an additive (i.e., silane), a bridging agent, an acrylic resin, and an organic solvent.
[0053] Figure 8 is a cross-sectional view of a reflective yarn 40A according to a second preferred embodiment of the present invention, and its structure is similar to Figure 6 The reflective yarn 40A is the same as the reflective yarn 40A, comprising: a base layer 32, a plurality of glass beads 34, two adhesive layers 36 and a covering layer 50, wherein the two layers of glass beads 34 are respectively adhered to the two opposite sides of the base layer 32 by the two adhesive layers 36, and the covering layer 50 covers the entire reflective yarn.
[0054] Figure 8 The reflective yarn 40A is not provided with a reflective layer, and therefore the lumen value of the reflected light is low.
[0055] Figure 9The reflective yarn 40A shown in the third preferred embodiment of the present invention comprises: a base layer 32, two layers of glass beads 34, two adhesive layers 36, two reflective layers 38, and a coating layer 50. After stretching, the reflective yarn 40A has a roughly elliptical cross-section. After stretching, the reflective yarn 40A has better physical properties. The two adhesive layers 36 form a larger specific surface area, which distributes the glass beads 34 over a larger area, while reducing the area of the two side edges 42 of the reflective yarn. In this preferred embodiment, the reflective yarn 40 is first stretched, and then the reflective yarn 40 is subjected to the stretching process. Figure 7 The reflective yarn 40A is formed by coating the coating 50. The reflective layer 38 can be made of aluminum, silver, or zinc sulfide. In this preferred embodiment, a gap 341 is defined between two adjacent glass beads 34. The coating 50 is colored and has a greater thickness 51 (greater than the thickness of the coating on the surface of the glass beads) at each gap 341. This results in thicker ink deposits and more ink at the gaps 341, resulting in a higher color purity and more vivid color on the reflective yarn 40A.
[0056] Figure 10 The reflective yarn 40A of the fourth preferred embodiment of the present invention has the same structure and components as Figure 9 The reflective yarn has: a base layer 32, two layers of glass beads 34, an adhesive layer 36 and a covering layer 50. The only difference is: Figure 10 The reflective yarn 40A is not provided with a reflective layer. The coating layer 50 covers the entire reflective yarn. Similarly, the coating layer 50 has a greater thickness 51 in the gaps 341 between adjacent glass beads 34, resulting in thicker and more abundant ink deposits in these gaps 341, making the color of the reflective yarn 40A purer and more vivid.
[0057] like Figure 6 、 Figures 8 to 10 As shown, the reflective yarn 40A of the present invention has a coating layer 50 that completely envelops the entire reflective yarn 40. The glass beads 34 are encapsulated within the coating layer 50. The coating layer 50 protects and shields the glass beads, preventing them from falling off. Furthermore, the resin in the coating layer 50 exhibits excellent adhesion and bonding with the glass beads 34, maintaining their position. Therefore, the reflective yarn 40A can be knitted on a variety of knitting machines, including circular knitting machines or warp-edge computerized jacquard machines, without the glass beads 34 falling off or dislodging. This effectively addresses the problem of glass beads falling into the knitting machine and causing damage, as well as the problem of reduced reflective performance associated with conventional reflective yarns. The resin coating layer 50 maintains its coating over the reflective yarn 40, preventing it from dissolving, separating from the reflective yarn 40, or becoming sticky.
[0058] The reflective yarn 40A of the present invention can solve the problems of silver leakage (silver appearance) on the sides of known high-brightness reflective yarns and different colors at different positions of the reflective yarn. Figure 6 and Figure 9 A preferred embodiment of the reflective yarn 40A is to make the covering layer 50 transparent red. The covering layer 50 covers the entire reflective yarn. Therefore, the two surfaces (top and bottom) and the two side edges 42 of the reflective yarn 40A are all red, and the color is the same everywhere. There is no silver leakage on the side edges of the reflective yarn 40A. Figure 11 yes Figure 9 A schematic diagram of the reflective yarn 40A (presented in black and white in this specification) is shown. Figure 11 It can be verified that the top surface, bottom surface and side edges of the reflective yarn 40A are all of the same color.
[0059] If the reflective yarn 40A does not need to be colored, the resin solution 55 used to form the coating layer 50 does not need to contain pigment. If the reflective yarn 40A of the present invention is to be colored, there is no need to produce a colored reflective sheeting 30 (that is, the reflective sheeting 30 does not need a colored layer). Instead, the coating layer 50 is colored, and the reflective yarn is coated with the colored coating layer 50 to produce the colored reflective yarn. Therefore, regardless of whether the reflective yarn 40A is to be colored, there is no need to produce a colored reflective sheeting 30, simplifying the production of the reflective sheeting 30 and reducing inventory costs for the reflective sheeting 30.
[0060] With the reflective yarn 40A structure of the present invention, colored reflective yarn 40A does not need to be made into colored reflective film. Therefore, colored reflective yarn 40A can be produced even with small order quantities, solving the problem of the industry being unable to produce colored reflective film in small quantities.
[0061] Figure 6 and Figure 9 The reflective lumen value of the reflective yarn 40A can reach more than 300 lumens. The present invention can provide a reflective yarn with a high reflective lumen value. The higher the reflective efficiency, the better the safety and protection effect can be achieved.
[0062] Figure 12 and Figure 13 The reflective yarn 60 of the sixth preferred embodiment of the present invention can be Figure 6 、 Figure 8 As shown, it is an unstretched reflective yarn, or as Figure 9 、 Figure 10 As shown, a stretched reflective yarn 60 comprises a base layer 62, two layers of glass beads 64, two adhesive layers 66, and may have two reflective layers 68. Spaces 641 are formed between the glass beads 64. The outer periphery of the reflective yarn 60 is covered with at least one covering yarn to form a reflective composite yarn 70. For example, a covering yarn may be wrapped around the outer periphery of the reflective yarn in the S-direction or the Z-direction. The covering yarn may be a monofilament yarn or a multifilament yarn. The reflective yarn 60 forms the core yarn of the reflective composite yarn 65.
[0063] In this preferred embodiment, two covering yarns 72 and 74 are used to cover the outer periphery of the reflective yarn 60 in the S direction and the Z direction respectively. The strength of the reflective yarn 60 can be enhanced by the two covering yarns 72 and 74. Preferably, the two covering yarns 72 and 74 cover the reflective yarn 60 in a manner that more or the maximum number of glass beads can be exposed, so that the reflective effect is not reduced or not reduced too much. Figure 12 As shown, the exposed area of the glass beads on the outer surface of the reflective yarn 60 is larger than the covering area of the two covered yarns 72 and 74, and the reflective yarn 60 still has a very good reflective effect.
[0064] The reflective composite yarn 70 warp Figure 7 A coating layer 50 is provided on the outer surface of the Figure 13 As shown, the outer surface of the reflective yarn 60 and the outer surfaces of the two covered yarns 72 and 74 are all covered by the covering layer 50. The covering layer 50 envelops the entire reflective yarn 60, preventing the glass beads 64 of the reflective yarn 60 from falling off. The covering layer 50 also ensures that the two surfaces (top and bottom) and the two side edges 61 of the reflective yarn 60 are the same color, which solves the problem of silver leakage (showing silver) on the sides of conventional high-lumen reflective yarns and different colors at different locations on the reflective yarn.
[0065] Figure 14 The reflective yarn 80 of the sixth preferred embodiment of the present invention can be Figure 6 or Figure 8 Unstretched reflective yarn as shown, or as Figure 9 、 Figure 10 The reflective yarn 80 is twisted with a yarn 82 or a plurality of yarns to form a twisted yarn 85, which serves as the core yarn of a reflective composite yarn and wraps one or more covering yarns, such as Figure 12 The covered yarns 72 and 74 cover the outer periphery of the twisted yarn 85 to form a reflective composite yarn. A covering layer is provided on the outer surface of the reflective composite yarn so that the outer surfaces of the twisted yarn 85 and the covered yarn are covered by the covering layer.
[0066] The reflective yarn provided by the present invention can solve many problems in manufacturing and weaving of conventional reflective yarns. The embodiments of the present invention are merely illustrative of the features of the present invention and are not intended to be limiting. Any equivalent modifications of the present invention should be considered within the scope of protection of the present invention.
Claims
1. A reflective yarn for preventing glass beads from falling, characterized by: Includes: a base layer having two opposite surfaces; a plurality of glass microbeads, the plurality of glass microbeads being adhered to at least one surface of the base layer by at least one adhesive layer to form at least one layer of glass microbeads; The reflective yarn is formed by laminating the base layer, the glass beads and the adhesive layer, and has two surfaces and side edges other than the two surfaces; the at least one layer of glass beads is disposed on at least one surface of the reflective yarn; and A covering layer is made of resin material and is light-transmissive. The covering layer covers the reflective yarn, including covering the glass beads and covering the side of the reflective yarn.
2. A reflective yarn for preventing glass beads from falling, characterized by: Includes: a base layer having two opposite surfaces; a plurality of glass microbeads, the plurality of glass microbeads being adhered to at least one surface of the base layer by at least one adhesive layer to form at least one layer of glass microbeads; At least one reflective layer is disposed on the bottom side of the glass beads; The reflective yarn is formed by laminating the base layer, glass beads, adhesive layer and reflective layer, and has two surfaces and side edges other than the two surfaces; the at least one layer of glass beads and the at least one layer of reflective layer are disposed on at least one surface of the reflective yarn; and A covering layer is made of resin material and is light-transmissive. The covering layer covers the reflective yarn, including covering the glass beads and covering the side of the reflective yarn.
3. The reflective yarn for preventing glass beads from falling as claimed in claim 1 or 2, characterized in that: The coating layer is a resin containing acrylic acid and silane, or a resin containing thermoplastic polyurethane and silane, or a resin containing acrylic acid, silane and thermoplastic polyurethane, or a resin containing silane.
4. The reflective yarn for preventing glass beads from falling as claimed in claim 1 or 2, characterized in that: The resin of the covering layer has a color.
5. The reflective yarn for preventing glass beads from falling as claimed in claim 4, characterized in that: The resin of the coating layer is added with a transparent pigment.
6. The reflective yarn for preventing glass beads from falling as claimed in claim 5, characterized in that: The transparent pigment is transparent ink.
7. The reflective yarn for preventing glass beads from falling as claimed in claim 4, characterized in that: The sides of the reflective yarn have the color of the covering layer.
8. The reflective yarn for preventing glass beads from falling as claimed in claim 1 or 2, characterized in that: The coating is formed by subjecting liquid resin to heat.
9. The reflective yarn for preventing glass beads from falling as claimed in claim 1 or 2, characterized in that: The adhesive layer is made of a material containing acrylic acid or a material containing polyurethane.
10. The reflective yarn for preventing glass beads from falling as claimed in claim 1 or 2, characterized in that: There is a gap between two adjacent glass beads; the coating layer is formed with a larger thickness at each of the gaps.
11. The reflective yarn for preventing glass beads from falling as claimed in claim 10, characterized in that: The coating layer has color; the pigment or color material forming the color of the coating layer is present in a larger amount in the gaps.
12. The reflective yarn for preventing glass beads from falling as claimed in claim 1 or 2, characterized in that: The composite reflective yarn comprises at least one covering yarn covering the outer periphery of the reflective yarn to form a composite reflective yarn, wherein the reflective yarn constitutes the core of the composite reflective yarn; the outer peripheries of the reflective yarn and the at least one covering yarn are both covered by a covering layer.
13. The reflective yarn for preventing glass beads from falling as claimed in claim 12, characterized in that: The reflective yarn and at least one yarn form a twisted yarn, the twisted yarn constitutes the core yarn of the reflective composite yarn, and the outer periphery of the twisted yarn is covered by the covering layer.