Sunshade net for covering ground tea

Abstract

The utility model relates to a sunshade net for covering ground tea, which is formed by alternately weaving one kind of warp yarns and two kinds of weft yarns, the warp yarns are black warp yarns made of polyethylene, and the weft yarns are formed by alternately arranging first black weft yarns made of polyethylene and second silver weft yarns 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] This utility model relates to the field of shade nets, and in particular to a shade net for covering tea grinding. [Background Technology]

[0002] Tencha is the raw material for matcha, and matcha is the refined tea of ​​tencha. Tencha (formerly known as "mocha") is made by steaming (hot air) and drying fresh tea leaves from covered tea plants. Covering tea gardens increases the chlorophyll and free amino acid content of tencha while reducing caffeine and tea polyphenol content, resulting in matcha with excellent color, aroma, and flavor, making it an ideal raw material for matcha. The sensory requirements for matcha are a green color and a fresh taste, specifically reflected in high chlorophyll, high theanine, and low tea polyphenol content. Chlorophyll is the main pigment in matcha's vibrant green color and is an important indicator of its quality; higher chlorophyll content indicates higher quality.

[0003] In existing technology, black polyethylene shade nets are generally used to cover the tea leaves. The disadvantages of black polyethylene shade nets are that the shading rate is poor, approximately 65% ​​to 75%, and the temperature under the net is relatively high. Therefore, we thought about how to improve the structure of the shade net to increase its shading rate. [Utility Model Content]

[0004] To address the aforementioned problems, the purpose of this invention is to provide a shade net that has both a high shading rate and a light weight.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a sunshade net for covering tea grinding, which is woven from one type of warp yarn and two types of weft yarn alternately. 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 aluminized polyethylene. The cross-sections of the black first weft yarn and the silver second weft yarn are both flat, and 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. Several fixing clips are connected to the two sides of the sunshade net by connecting lines. The thickness of the two sides of the sunshade net is greater than the thickness of the rest of the sunshade net.

[0006] Preferably, the sunshade net for covering tea grinding in this utility model is further configured such that the clamping head of the fixing clip is covered with a soft rubber sleeve.

[0007] Preferably, the shade net for covering tea grinding in this utility model is further configured such that: the connecting wire includes a core layer and a covering layer covering the outside of the core layer, the core layer is high-strength polyester, and the covering layer is soft plastic.

[0008] Preferably, the shade net for covering tea grinding in this utility model is further configured such that the width of the first black weft yarn is 3.0-3.5mm.

[0009] Preferably, the shade net for covering tea grinding in this utility model is further configured such that the width of the silver second weft yarn is 4.5-6.0mm.

[0010] Preferably, the shade net for covering tea grinding in this utility model is further configured such that a landmark midline is provided in the middle of the shade net.

[0011] Preferably, the sunshade net for covering tea grinding in this utility model is further configured such that several fixing clips are evenly arranged along both sides of the sunshade net.

[0012] Preferably, the shade net for covering tea grinding in this utility model is further configured such that the thickness of the shade net at both sides and the middle is 0.5-0.7mm.

[0013] Preferably, the shade net for covering tea grinding in this utility model is further configured such that the thickness of the remaining part of the shade net, excluding the two side edges, is 0.3-0.4mm.

[0014] Compared with existing technologies, this utility model has the following beneficial effects: In this utility model, the weft yarn is an alternating structure of a black first weft yarn made of polyethylene and a silver second weft yarn made of aluminized polyethylene. Because the second weft yarn is silver, its reflectivity and insect-repellent properties are greatly improved. Furthermore, the aluminized film significantly enhances its shading rate, achieving a shading rate of 90%-95% for the improved shade net. Since the silver second weft yarn is relatively heavy after aluminized film, its weight must be considered in the design to achieve a balance between shading rate and weight. Tea trees cannot be covered with excessively heavy shade nets, as this would affect their growth. Therefore, in the design, the weft yarn uses an alternating structure of black first weft yarn and silver second weft yarn, while the width of the silver second weft yarn is designed to be greater than the width of the black first weft yarn. This optimizes the balance between shading rate and weight, improving economic efficiency. Furthermore, by setting fixing clips on both sides of the shade net, this invention can effectively fix the shade net to the tea trees, preventing it from being blown away by the wind. By covering the clamp head with a soft rubber sleeve and the connecting line with soft plastic coating, the tea trees can be well protected from damage. When the shade net is subjected to external forces such as wind, the tensile force generated by the shade net relative to the fixing clips is mainly concentrated at the two side edges of the shade net. Therefore, this invention improves the service life of the shade net by thickening the two side edges. [Attached Image Description]

[0015] Figure 1 This is a schematic structural diagram of the sunshade net used for covering tea during tea rolling in the present utility model.

[0016] Figure 2 This is an enlarged schematic structural diagram of the fixing clip.

[0017] Figure 3 Along Figure 2 This is a schematic cross-sectional structure diagram along the A-A line in

[0018] Figures 1 to 3 In it: 1. Weft yarn, 2. Warp yarn, 3. At both side edges, 4. Connecting line, 40. Core layer, 41. Coating layer, 5. Fixing clip, 50. Chuck part, 51. Soft rubber sleeve, 6.标志性中位经线 (It seems there is a mistake here. Maybe it should be a specific name in Chinese. Let's assume it's "landmark middle-position warp yarn" for translation). Landmark middle-position warp yarn.

Specific implementation manners

[0019] The following further details the sunshade net for covering tea during tea rolling in the present utility model through specific embodiments.

[0020] Refer Figures 1 to 3As shown, a shade net for covering tea leaves is woven from alternating warp yarns 2 and two weft yarns 1. The warp yarns 2 are black warp yarns made of polyethylene, and the weft yarns 1 are composed of alternating black first weft yarns made of polyethylene and silver second weft yarns made of aluminized polyethylene. The cross-sections of both the black first weft yarn and the silver second weft yarn are flat, which makes it lightweight. The width of the silver second weft yarn is greater than the width of the black first weft yarn, with a width of 4.5-6.0 mm, while the width of the black first weft yarn is 3.0-3.5 mm. Because the second weft yarn is silver, its reflectivity and insect-repellent properties are greatly improved. Furthermore, the aluminized film further enhances its shading rate, which can reach 90%-95%. Because the silver second weft yarn is relatively heavy after being coated with aluminum film, its weight must be considered in the design while simultaneously improving the shading rate. A balance must be struck between these two factors, as tea trees cannot be covered by excessively heavy shading nets, as this would negatively impact their growth. Therefore, the design employs an alternating structure of black first weft yarn and silver second weft yarn, with the width of the silver second weft yarn being greater than that of the black first weft yarn. This achieves an optimized balance between shading rate and weight while minimizing the weight of the shading net, thus improving economic efficiency. The black warp yarn has a circular cross-section. Several fixing clips 5 are connected to the two edges 3 of the shading net via connecting lines 4. These clips securely fasten the shading net to the tea trees, preventing it from being blown away by the wind. In this embodiment, the fixing clips 5 are evenly distributed along the two edges 3 of the shading net. The clamping head portion 50 of the fixing clip 5 is fitted with a soft rubber sleeve 51. The connecting wire 4 includes a core layer 40 and a covering layer 41 covering the outside of the core layer 40. The core layer 40 is made of high-strength polyester, and the covering layer 41 is made of soft plastic. By fitting the soft rubber sleeve 51 to the clamping head portion 50 of the fixing clip 5 and covering the outside of the connecting wire 4 with soft plastic, the tea tree can be effectively protected from damage.

[0021] The thickness of the shade net at its two side edges 3 is greater than the thickness of the rest of the shade net. The thickness of the shade net at its two side edges 3 and the middle is 0.5-0.6 mm, and the thickness of the shade net excluding the two side edges 3 is 0.3-0.4 mm. This design is because when the shade net is subjected to external forces such as wind, the tensile force generated by the shade net relative to the fixing clips 5 is mainly concentrated at the two side edges 3. Thickening the two side edges 3 extends the service life of the shade net. A center warp line 6 is provided in the middle of the shade net for easy identification of the centerline position during use.

[0022]

[0023] The table above shows experimental data obtained after covering tencha leaves for 6 days and 9 days using ordinary black shade nets and the tencha-specific shade net of this invention, respectively. As can be seen from the table, the amino acid, fiber, catechin, and chlorophyll content in tencha leaves was increased after using the tencha-specific shade net of this invention, while the theanine and caffeine content in tencha leaves decreased. Therefore, it is evident that the shading rate was improved after using the tencha-specific shade net of this invention.

[0024] In summary, this utility model adopts an alternating structure of black first weft yarn and silver second weft yarn in its design, while also designing the width of the silver second weft yarn to be greater than the width of the black first weft yarn. This not only improves the shading rate but also achieves an optimized balance between shading rate and weight. After the improvement, the shading rate can reach 90%-95%, and the weight per square meter can be controlled between 65-85 grams.

[0025] The above embodiments are merely illustrative of the principles and effects of this utility model, as well as some of its applications, and are not intended to limit this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the inventive concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A sunshade net for covering a tea roller, characterized by: The sunshade net is knitted by one warp yarn and two weft yarns alternately, the warp yarn is black warp yarn made of polyethylene, the weft yarns are composed of black first weft yarn made of polyethylene and silver second weft yarn made of aluminized film polyethylene arranged alternately, the cross sections of the black first weft yarn and the silver second weft yarn are both arranged in flat shape, the width of the silver second weft yarn is larger than that of the black first weft yarn, the cross section of the black warp yarn is arranged in circular shape, a plurality of fixing clamps are connected to the both side edges of the sunshade net through connecting lines, the thickness of the both side edges of the sunshade net is larger than that of the rest part of the sunshade net.

2. A sunshade net for tea covering as claimed in claim 1, wherein: The chuck part of the fixing clamp is sleeved with a soft rubber sleeve.

3. The sunshade net for tea covering according to claim 1, characterized in that: The connecting line comprises a core layer and a cladding layer cladded outside the core layer, the core layer is high-strength polyester, and the cladding layer is soft plastic.

4. The sunshade net for tea covering according to claim 1, wherein: The width of the black first weft yarn is 3.0-3.5 mm.

5. The sunshade net for tea covering according to claim 1, wherein: the sunshade net is made of a material with a thickness of 0.05-0.1 mm. The width of the silver second weft yarn is 4.5-6.0 mm.

6. A sunshade net for tea covering according to claim 1, wherein: The sunshade net is provided with a landmark middle warp yarn in the middle.

7. The sunshade net for tea covering according to claim 1, characterized in that: The plurality of fixing clamps are evenly arranged along the both side edges of the sunshade net.

8. A sunshade net for tea covering according to claim 1, wherein: The thickness of the both side edges and the middle of the sunshade net is 0.5-0.7 mm.

9. The sunshade net for tea covering according to claim 1, characterized in that: The thickness of the rest part of the sunshade net except the both side edges is 0.3-0.4 mm.

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