Sun-shading net for covering ground tea and weaving method of sun-shading net

Abstract

The invention relates to a sunshade net for covering ground tea and a weaving method thereof.The sunshade net is formed by alternately weaving one kind of warp yarn and two kinds of weft yarn, the warp yarn is black warp yarn made of polyethylene, and the weft yarn is formed by alternately arranging first black weft yarn made of polyethylene and second silver weft yarn made of aluminized film polyethylene; the cross section of the first black weft yarn and the cross section of the second silver weft yarn are flat, the width of the second silver weft yarn is larger than that of the first black weft yarn, the cross section of the black warp yarn is circular, and a plurality of fixing clamps are connected to the edges of the two sides of the sunshade net through connecting lines. The thickness of the edges of the two sides of the sunshade net is larger than that of the other parts of the sunshade net, and therefore the sunshade rate is improved, and meanwhile optimal balance between the sunshade rate and the weight is achieved.

Description

[Technical field]

[0001] The invention relates to the field of sunshade nets, and in particular to a sunshade net for covering tea rolling and a weaving method thereof. [Background technology]

[0002] Tencha is the raw material of matcha, and matcha is the refined tea of ​​tencha. Tencha (called "mocha" in ancient times) is made from fresh leaves of tea trees that are covered and cultivated, steamed (hot air) and dried. Tea garden covering agronomic measures can increase the chlorophyll and free amino acid content of tencha, reduce the caffeine and tea polyphenol content, and make the color, aroma and taste of matcha excellent, forming an ideal raw material for matcha. The sensory requirements of matcha are green color and fresh taste. The specific physical and chemical indicators are high chlorophyll, high theanine and low tea polyphenols. Chlorophyll is the main pigment substance of matcha's emerald green color and an important indicator of matcha. The higher the chlorophyll content, the higher the quality.

[0003] In the prior art, black polyethylene sunshade nets are generally used to cover the tea leaves. The disadvantage of the black polyethylene sunshade net is that the shading rate is poor, roughly 65% ​​to 75%, and the temperature under the net is high. Therefore, we are thinking about improving the structure of the sunshade net to improve the shading rate of the sunshade net. [Summary of the invention]

[0004] In order to solve the above problems, the object of the present invention is to provide a sunshade net having both high sunshade rate and light weight and a weaving method thereof.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a sunshade net for covering tea leaves, which is woven alternately by one warp yarn and two weft yarns, the warp yarn is a black warp yarn made of polyethylene, and the weft yarn is composed of a black first weft yarn made of polyethylene and a silver second weft yarn made of aluminum-coated polyethylene, which are alternately arranged, the cross-sections of the black first weft yarn and the silver second weft yarn are both flat, the width of the silver second weft yarn is greater than the width of the black first weft yarn, the cross-section of the black warp yarn is circular, and a number of fixing clips are connected to the two side edges of the sunshade net by connecting lines, and the thickness of the two side edges of the sunshade net is greater than the thickness of the rest of the sunshade net.

[0006] Preferably, the sunshade net for covering rolling tea in the present invention is further configured as follows: the clamping head portion of the fixing clip is sleeved with a soft rubber sleeve.

[0007] Preferably, a sunshade net for covering rolling tea in the present invention is further configured as follows: the connecting line includes a core layer and a coating layer coated on the outside of the core layer, the core layer is high-strength polyester, and the coating layer is soft plastic.

[0008] Preferably, the sunshade net for covering rolling tea in the present invention is further configured as follows: the width of the first black weft yarn is 3.0-3.5 mm.

[0009] Preferably, the sunshade net for covering rolling tea in the present invention is further configured as follows: the width of the silver second weft yarn is 4.5-6.0 mm.

[0010] Preferably, the sunshade net for covering rolling tea in the present invention is further configured as follows: a symbolic median warp is provided in the middle of the sunshade net.

[0011] Preferably, the sunshade net for covering rolling tea in the present invention is further configured as follows: a plurality of fixing clips are evenly arranged along the edges of both sides of the sunshade net.

[0012] Preferably, the sunshade net for covering rolling tea in the present invention is further configured as follows: the thickness of the sunshade net at both side edges and the middle is 0.5-0.7 mm.

[0013] Preferably, the sunshade net for covering rolling tea in the present invention is further configured as follows: the thickness of the remaining part of the sunshade net except the edges on both sides is 0.3-0.4 mm.

[0014] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a weaving method of a sunshade net for covering tea leaves, which is weaved by a double weft weaving method, and the specific steps are: a first weft storage device sends a black first weft yarn to a shed, the first palm frame and the third palm frame move upward, the second palm frame and the fourth palm frame move downward, the projectile guides the black first weft yarn to pass through the shed, the machine scissors act to cut off the black first weft yarn, the beating-up mechanism acts to compact the black first weft yarn, then the second palm frame and the fourth palm frame move upward, the first palm frame and the third palm frame move downward, and then the projectile guides the second weft storage device to pass the silver second weft yarn through the shed, the machine scissors act to cut off the silver second weft yarn, and the beating-up mechanism acts to compact the black first weft yarn. The mechanism acts to compress the silver second weft yarn, and this cycle is repeated to complete the weaving of the sunshade net. The thickened edges on both sides of the sunshade net are achieved as follows: the number of warp yarns is increased according to the position, width and density of the thickened edges during warping, and the warp yarns are respectively inserted into the palm frame yarn dividers according to design requirements. The number of warp yarns at the thickened edge of the sunshade net is 4-5 times that of the middle part of the sunshade net. The edge locking of the sunshade net is achieved as follows: the black first weft yarn is cut off after the beating is completed, and the thread end is fed into the weft together with the silver second weft yarn to complete the edge locking action. Similarly, the silver second weft yarn is cut off after the beating is completed, and the thread end is fed into the weft together with the black first weft yarn to complete the edge locking action. This cycle is repeated to complete the edge locking of the entire woven net.

[0015] Compared with the prior art, the present invention has the following beneficial effects: the weft yarn in the present invention is an alternating structure of a black first weft yarn made of polyethylene and a silver second weft yarn made of aluminized polyethylene. Since the second weft yarn is silver, the reflectivity and insect repellency are greatly improved. In addition, after the aluminized film is added, the sunshade rate of the improved sunshade net can reach 90%-95%. Since the weight of the silver second weft yarn is heavier after the aluminized film is added, its weight should be considered when designing it while considering its ability to improve the sunshade rate, so that a balance is achieved between the sunshade rate and the weight, because the tea tree cannot be covered with an overly heavy sunshade net, which will affect the growth of the tea tree. Therefore, when designing, the weft yarn adopts an alternating structure of a black first weft yarn and a silver second weft yarn, and the width of the silver second weft yarn is designed to be greater than the width of the black first weft yarn, so as to achieve an optimal balance between the sunshade rate and the weight and improve the economic benefits. In addition, the present invention arranges fixing clips on both sides of the sunshade net, so that the sunshade net can be well fixed on the tea tree to prevent it from being blown away by the wind. A soft rubber sleeve is provided on the clamping part of the fixing clip and a connecting wire covered with soft plastic, so that the tea tree can be well protected from damage. When the sunshade net is subjected to external forces such as wind, the pulling force generated by the sunshade net relative to the fixing clip is mainly concentrated on the edges of both sides of the sunshade net. Therefore, the present invention increases the service life of the sunshade net by thickening the edges of both sides of the sunshade net. Therefore, for the sunshade net with this structure, we have specially developed a corresponding weaving method to produce this sunshade net.

Brief Description of the Drawings

[0016] Figure 1 It is a schematic structural diagram of the sunshade net for covering the rolling tea in the present invention.

[0017] Figure 2 A schematic diagram of the enlarged structure of the fixing clip.

[0018] Figure 3 For along Figure 2 Schematic diagram of the cross-sectional structure along line AA.

[0019] Figures 1 to 3 Center: 1. Weft yarn, 2. Warp yarn, 3. Edges on both sides, 4. Connecting line, 40. Core layer, 41. Covering layer, 5. Fixing clip, 50. Chuck part, 51. Soft rubber cover, 6. Signature center warp. [Specific implementation method]

[0020] The following is a further detailed description of a sunshade net for covering rolling tea and a weaving method thereof according to the present invention through specific embodiments.

[0021] Ginseng Figures 1 to 3As shown, a sunshade net for covering tea leaves is woven alternately by a warp yarn 2 and two weft yarns 1. The warp yarn 2 is a black warp yarn made of polyethylene, and the weft yarn 1 is composed of a first black weft yarn made of polyethylene and a second silver weft yarn made of aluminized polyethylene. The cross-sections of the first black weft yarn and the second silver weft yarn are both flat. The flat design makes them lighter. The width of the second silver weft yarn is greater than that of the first black weft yarn. The width of the second silver weft yarn is 4.5-6.0 mm, and the width of the first black weft yarn is 3.0-3.5 mm. Since the second weft yarn is silver, the reflectivity and insect repellency are greatly improved. In addition, after the aluminized film is added, the sunshade rate is greatly improved, and the sunshade rate can reach 90%-95%. Since the silver second weft yarn is heavy after being aluminized, its weight should be considered when designing it while considering that it can improve the sunshade rate, so that a balance is reached between the sunshade rate and the weight, because the tea tree cannot be covered with an overly heavy sunshade net, and an overly heavy sunshade net will affect the growth of the tea tree. Therefore, when designing, we adopt the alternating structure of the black first weft yarn and the silver second weft yarn, and design the width of the silver second weft yarn to be greater than the width of the black first weft yarn, so as to achieve the sunshade rate while increasing the sunshade rate, while reducing the weight of the sunshade net as much as possible, achieving an optimal balance between the sunshade rate and the weight, and improving economic benefits. The cross section of the black warp yarn is circular, and the two side edges 3 of the sunshade net are connected with a plurality of fixing clips 5 through a connecting line 4. The setting of the fixing clips 5 can well fix the sunshade net on the tea tree to avoid being blown away by the wind. In this embodiment, a plurality of fixing clips 5 are evenly arranged along the two side edges 3 of the sunshade net. The clamping head portion 50 of the fixing clamp 5 is sleeved with a soft rubber sleeve 51, and the connecting wire 4 includes a core layer 40 and a coating layer 41 coated on the outside of the core layer 40, wherein the core layer 40 is made of high-strength polyester, and the coating layer 41 is made of soft plastic. By sleeved with the soft rubber sleeve 51 on the clamping head portion 50 of the fixing clamp 5 and coating the outside of the connecting wire 4 with soft plastic, the tea tree can be well protected from damage.

[0022] The thickness of the two side edges 3 of the sunshade net is greater than the thickness of the rest of the sunshade net. The thickness of the two side edges 3 and the middle of the sunshade net is 0.5-0.6mm, and the thickness of the rest of the sunshade net except the two side edges 3 is 0.3-0.4mm. The reason for this design is that when the sunshade net is subjected to external forces such as wind, the pulling force generated by the sunshade net relative to the fixing clip 5 is mainly concentrated on the two side edges 3 of the sunshade net. By thickening the two side edges 3, the service life of the sunshade net can be extended. A landmark median meridian 6 is provided in the middle of the sunshade net to facilitate confirmation of the center line position during use.

[0023]

[0024] The above table shows the experimental data obtained after covering the rolling tea for 6 days and 9 days respectively using the ordinary black sunshade net in the prior art and the special sunshade net for rolling tea in the present invention. It can be seen from the above table that after using the special sunshade net for rolling tea in the present invention, the amino acid, fiber, catechin and chlorophyll components in the rolling tea are improved, and the theanine and caffeine components in the rolling tea are reduced, which indicates that the shading rate is improved after using the special sunshade net for rolling tea in the present invention.

[0025] The sunshade net for covering tea leaves in the present invention is produced by weaving with a double weft weaving method, and the specific steps are: the first weft feeder delivers the black first weft yarn to the shed, the first palm frame and the third palm frame move upward, the second palm frame and the fourth palm frame move downward, the projectile guides the black first weft yarn to pass through the shed, the machine scissors act to cut the black first weft yarn, the beating mechanism acts to press the black first weft yarn, then the second palm frame and the fourth palm frame move upward, the first palm frame and the third palm frame move downward, and then the projectile guides the second weft feeder to The silver second weft yarn passes through the shed, the machine scissors cut off the silver second weft yarn, and the beating mechanism presses the silver second weft yarn, and the weaving of the sunshade net is completed in this way. The thickened edges on both sides of the sunshade net are realized in this way: the warp yarn increases the number of yarns according to the position, width and density of the thickened edge during warping, and the warp yarns are respectively inserted into the palm frame yarn divider according to the design requirements. The number of warp yarns at the thickened edge of the sunshade net is 4-5 times that of the middle part of the sunshade net. In this embodiment, the width of the thickened edge of the sunshade net is 40-70mm. The locking of the sunshade net is realized in this way: the black first weft yarn is cut off after the beating is completed, and the thread end is inserted into the weft together with the silver second weft yarn to complete the locking action. Similarly, the silver second weft yarn is cut off after the beating is completed, and the thread end is inserted into the weft together with the black first weft yarn to complete the locking action, and the locking of the entire woven net is completed in this way.

[0026] In summary, the present invention adopts an alternating structure of black first weft yarn and silver second weft yarn in design, and at the same time, the width of the silver second weft yarn is designed to be larger than the width of the black first weft yarn. While improving the shading rate, it also achieves an optimal balance between the shading rate and the weight. After improvement, the shading rate can reach 90%-95%, and the square meter gram weight can be controlled between 65-85 grams.

[0027] The above-mentioned embodiments are only illustrative of the principles and effects of the invention, as well as some embodiments of its application, and are not intended to limit the invention. It should be pointed out that a person skilled in the art can make several modifications and improvements without departing from the inventive concept of the invention, and all of these belong to the protection scope of the invention.

Claims

1. A sunshade net for covering tea leaves, characterized in that: It is formed by alternating weaving of one warp yarn and two weft yarns, wherein the warp yarn is a black warp yarn made of polyethylene, and the weft yarn is composed of alternating black first weft yarn made of polyethylene and silver second weft yarn made of aluminum-coated polyethylene, the cross sections of the first black weft yarn and the second silver weft yarn are both flat, the width of the second silver weft yarn is greater than the width of the first black weft yarn, the cross section of the black warp yarn is circular, and a number of fixing clips are connected to the two side edges of the sunshade net by connecting lines, and the thickness of the two side edges of the sunshade net is greater than the thickness of the rest of the sunshade net.

2. A sunshade net for covering rolling tea as claimed in claim 1, characterized in that: The clamping head portion of the fixing clamp is sleeved with a soft rubber sleeve.

3. The sunshade net for covering rolling tea as claimed in claim 1, characterized in that: The connecting line comprises a core layer and a coating layer coated on the outer side of the core layer, the core layer is made of high-strength polyester, and the coating layer is made of soft plastic.

4. The sunshade net for covering rolling tea as claimed in claim 1, characterized in that: The width of the first black weft yarn is 3.0-3.5 mm.

5. The sunshade net for covering rolling tea as claimed in claim 1, characterized in that: The width of the silver second weft yarn is 4.5-6.0 mm.

6. The sunshade net for covering rolling tea as claimed in claim 1, characterized in that: A symbolic median meridian line is arranged in the middle of the sunshade net.

7. The sunshade net for covering rolling tea as claimed in claim 1, characterized in that: A plurality of fixing clips are evenly arranged along the edges of both sides of the sunshade net.

8. The sunshade net for covering rolling tea as claimed in claim 1, characterized in that: The thickness of the sunshade net at the edges on both sides and in the middle is 0.5-0.7 mm.

9. The sunshade net for covering rolling tea as claimed in claim 1, characterized in that: The thickness of the sunshade net except the edges on both sides is 0.3-0.4mm.

10. A method for weaving a sunshade net for covering tea rolling as described in any one of claims 1 to 9, characterized in that: The double weft weaving method is adopted for weaving, and the specific steps are as follows: the first weft storage device sends the black first weft yarn to the shed, the first palm frame and the third palm frame move upward, the second palm frame and the fourth palm frame move downward, the projectile guides the black first weft yarn to pass through the shed, the machine scissors act to cut the black first weft yarn, the beating-up mechanism acts to press the black first weft yarn, then the second palm frame and the fourth palm frame move upward, the first palm frame and the third palm frame move downward, and then the projectile guides the second weft storage device to pass the silver second weft yarn through the shed, the machine scissors act to cut the silver second weft yarn, the beating-up mechanism acts to press the silver second weft yarn, and this cycle repeats. The weaving of the sunshade net is completed, and the thickened edges on both sides of the sunshade net are achieved as follows: the number of warp yarns is increased according to the position, width and density of the thickened edges during warping, and the warp yarns are respectively inserted into the palm frame yarn dividers according to the design requirements. The number of warp yarns at the thickened edge of the sunshade net is 4-5 times that of the middle part of the sunshade net. The edge locking of the sunshade net is achieved as follows: the black first weft yarn is cut off after the beating is completed, and the thread end is fed into the weft together with the silver second weft yarn to complete the edge locking action. Similarly, the silver second weft yarn is cut off after the beating is completed, and the thread end is fed into the weft together with the black first weft yarn to complete the edge locking action. This cycle is repeated to complete the edge locking of the entire woven net.

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