Adhesive tape for resin lens liquid injection process
By using biodegradable PLA substrate tape and setting a consistent circular injection port in the production process of resin lenses, the problems of unstable lens quality and environmental pollution are solved, and precise control of the injection process and environmental protection effects are achieved.
Patent Information
- Application Number
- CN202422689093.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-05
- Publication Date
- 2025-10-17
- Estimated Expiration
- 2034-11-05
AI Technical Summary
In the existing resin lens production process, the lens quality is unstable, especially during the liquid injection process, where leakage, insufficient injection, and air leakage may occur due to operational differences. In addition, the PET base tape used is non-degradable, causing environmental pollution.
A tape for the liquid injection process of resin lenses is designed. The tape adopts a biodegradable PLA substrate and has circular injection ports of the same size set at regular intervals along the length. The tape roll is formed by die-cutting to ensure that the injection ports on each mold are of the same size.
The stability and quality consistency of the lens filling process are achieved, environmental pollution is reduced, and leakage, gaps and bubbles caused by operational differences are avoided.
Smart Images
Figure CN223445467U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of adhesive tape for resin lenses, especially to a kind of adhesive tape for resin lens liquid injection process. BACKGROUND
[0002] Current resin lens production process level is uneven;Lens manufacturing process includes mold, uncovering injection, baking, polishing, cleaning, and the current process mainly depends on manual operation, and everyone's technique is different, so the quality of lens is not very stable, especially in the process of uncovering injection, everyone's tearing strength, the angle of tearing, length are not the same, the sealing degree of resin liquid after injection is different, which will directly affect the quality problem of product curing in later period.In addition, resin lens process adhesive tape is used in process, not used as product structure, so long-term use produces a large amount of pollution, and degradable adhesive tape is undoubtedly a better choice as process adhesive tape.
[0003] The adhesive tape material used in the prior art is mainly PET substrate, and PET material is a non-degradable material, which inevitably produces a large amount of plastic pollution when used in process;The current mold process is full of adhesive tape on the mold, leaving a port, and then manually tearing the adhesive tape along the port and pouring resin liquid into it in the injection link;Due to the difference in personnel operation, it is impossible to accurately control the size of the tear opening, and there may be problems such as liquid leakage, less injection and air leakage.
[0004] As disclosed in patent CN214881222U, a water-based environmentally friendly packaging adhesive tape has: a substrate layer, which is a PET film;A water-based polyurethane adhesive layer is coated on the front surface of the substrate layer;The back surface of the substrate layer is coated with a non-silicon release layer or is not coated;The material cannot be quickly degraded, and the opening after tearing is not easy to control. UTILITY MODEL CONTENTS
[0005] In view of the deficiencies of the prior art, the utility model provides a kind of adhesive tape for resin lens liquid injection process, which can accurately control the size of injection port.
[0006] To solve the above technical problems, the technical scheme adopted by the utility model is:
[0007] The adhesive tape for resin lens liquid injection process includes substrate layer and adhesive layer, and the substrate layer and the adhesive layer are compounded to form a composite process adhesive tape, and the composite process adhesive tape is provided with an injection port with the same size every certain distance along the length direction.
[0008] Further:
[0009] The injection port is a circular injection hole.
[0010] The composite process adhesive tape is wound into an adhesive tape roll to be die cut to form the liquid injection port.
[0011] The substrate layer is a degradable PLA substrate.
[0012] The diameter of the liquid injection port ranges from 0.2 to 0.5 cm.
[0013] The distance between adjacent holes on the composite process adhesive tape ranges from 27 to 33 cm.
[0014] The liquid injection port is arranged at the middle position in the width direction of the composite process adhesive tape, and the composite process adhesive tape is provided with a middle marking line in the length direction.
[0015] Compared with the prior art, the present application has the following advantages:
[0016] The resin lens liquid injection process adhesive tape is reasonable in design, and the adhesive tape is die cut and punched at an interval of one circumference of a mold, so that each mold is left with a liquid injection port of the same size, the size of the liquid injection port can be accurately controlled, and the resin lens liquid injection quality is improved. BRIEF DESCRIPTION OF DRAWINGS
[0017] The content expressed by each drawing of the present specification and the marks in the drawings are briefly described as follows:
[0018] Figure 1 It is a schematic diagram of the adhesive tape layer structure of the present application.
[0019] Figure 2 It is a schematic diagram of the liquid injection port distribution of the present application.
[0020] In the drawings:
[0021] 1. Adhesive layer, 2. Substrate layer, 3. Liquid injection port. DETAILED DESCRIPTION
[0022] The specific embodiments of the present application are further described in detail below by comparing the drawings and describing the embodiments.
[0023] As shown in Figure 1 and Figure 2 The resin lens liquid injection process adhesive tape includes a substrate layer 2 and an adhesive layer 1, the substrate layer and the adhesive layer are combined to form a composite process adhesive tape; the process adhesive tape is used in a relatively large amount, the substrate layer is a degradable PLA substrate, and environmental pollution is reduced.
[0024] The composite process adhesive tape is provided with a liquid injection port 3 of the same size at a certain interval in the length direction. The adhesive tape is die cut and punched at an interval of one circumference of a mold, so that each mold is left with a liquid injection port of the same size, the size of the liquid injection port can be accurately controlled, and the resin lens liquid injection quality is improved.
[0025] Further, the liquid injection port is a circular liquid injection hole, and the composite process adhesive tape is wound into an adhesive tape roll and die cut to form the liquid injection port, which is convenient for molding and the consistency of the liquid injection port is easy to control.
[0026] The diameter of the liquid injection hole ranges from 0.2 to 0.5 cm. The distance between adjacent holes on the composite process adhesive tape is 27-33 cm. The liquid injection port is arranged at the middle position in the width direction of the composite process adhesive tape, and the composite process adhesive tape is provided with a middle mark line in the length direction, so that the position of the liquid injection port is easy to control.
[0027] The utility model discloses can control every time's liquid injection port size, ensure the stability of every time injection, will not produce the bubble of lens, the notch problem because the difference of personnel operation.
[0028] The utility model discloses a porous degradable adhesive tape for resin lens liquid injection process:
[0029] Glue mixing: mix isopropyl alcohol solvent and glue according to the ratio of 1:1, stir evenly, and the boiling point of isopropyl alcohol is 82 degrees, which can be dried at a lower temperature.
[0030] Coating: the adhesive tape substrate is preferably a degradable PLA film material, and the glue is selected from water-based polyacrylate glue. First, the PLA substrate is subjected to corona treatment to enhance the adhesion of the substrate, and the corona voltage is 0.8KV. Then, the polyacrylate glue is coated on the PLA film material by direct coating, and the adhesion of the direct coating method is better. The coating temperature is 80 degrees, the coating speed is 0.2m / min, and the oven temperature is 50 / 70 / 80 / 70 degrees, so as to ensure that the glue surface can be dried at a lower speed.
[0031] Die cutting: the coated master roll adhesive tape is die cut and punched with the release film, and the distance between each hole is kept between 27-33 cm. This can cover the range of the circumference of molds of various diameters, and the diameter of each hole ranges from 0.2 to 0.5 cm. The release film is removed at the same time to make a large master roll. Then, the master roll is cut into finished roll adhesive tape.
[0032] Application: during the mold closing process, the adhesive tape is placed in the corresponding winding position, and the roller shaft is rotated to wind the adhesive tape around the mold. Because the position of the hole left in advance is just within the range of the circumference of the mold, the adhesive tape wound on the mold will retain a liquid injection port. During liquid injection, there is no need to re-tear the adhesive tape, and the size of each liquid injection port is consistent, so the consistency of the liquid injection can be stably controlled.
[0033] The utility model discloses aim at solving the quality problem such as lens leakage, notch, bubble and so on because of the unstable liquid injection process, and helping to realize the consistency of lens process.
[0034] The above is only the description of the preferred embodiment of the utility model, and the above technical features can be combined to form multiple embodiment schemes of the utility model.
[0035] The utility model has been described above in conjunction with the drawings, obviously, the utility model specific implementation is not limited by the above mode, as long as the various non-essential improvements of adopting the concept and technical scheme of the utility model, or the concept and technical scheme of the utility model are directly applied to other occasions without improvement, all are within the protection scope of the utility model.
Claims
1. A tape for the liquid injection process of a resin lens, comprising a substrate layer and an adhesive layer, wherein the substrate layer and the adhesive layer are composited together to form a composite process tape, characterized in that: The composite process tape is provided with a liquid injection port of the same size at regular intervals along the length direction.
2. The adhesive tape for resin lens liquid injection process according to claim 1, characterized in that: The liquid injection port is a circular liquid injection hole.
3. The adhesive tape for resin lens liquid injection process according to claim 1, characterized in that: In the composite process, the adhesive tape is wound into an adhesive tape roll and then die-cut to form a liquid injection port.
4. The adhesive tape for resin lens liquid injection process according to claim 1, characterized in that: The substrate layer is a degradable PLA substrate.
5. The adhesive tape for resin lens liquid injection process according to claim 2, characterized in that: The diameter of the injection hole is in the range of 0.2-0.5 cm.
6. The adhesive tape for resin lens liquid injection process according to claim 2, characterized in that: The distance between adjacent holes on the composite process tape is 27-33 cm.
7. The adhesive tape for resin lens liquid injection process according to claim 3, characterized in that: The liquid injection port is arranged in the middle position of the composite process tape in the width direction, and the composite process tape is provided with a middle marking line along the length direction.