JPH1086231A - Plastic lens manufacturing method - Google Patents

Abstract

(57) [Summary] [Problem] When performing casting molding of a plastic lens,
By improving the sealing property, a plastic lens having excellent product quality without bubbles, turbidity, distortion, coloring, etc. is obtained. A first step of assembling a polymerization mold by winding an adhesive tape having an adhesive surface on one side around two mold sides, and injecting a liquid curable composition into the polymerization mold. In the method for producing a plastic lens having a second step and a third step of polymerizing the curable composition injected into the polymerization mold in this order, the surface other than the adhesive surface is water-repellent. A method for producing a plastic lens, wherein the first step is carried out using an adhesive tape having a surface having the following.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing plastic lenses such as spectacles.

[0002]

2. Description of the Related Art As a method of manufacturing a plastic lens, there are a cutting and polishing method, an injection molding method, a compression molding method, a casting molding method, and the like. Cast molding is commonly used.

As a liquid curable composition used as a raw material of a plastic lens, a polymer of diethylene glycol bisallyl carbonate or methyl methacrylate is excellent in impact resistance, easy processability, dyeability, and the like.
It has been widely used in the past. However, in recent years, there has been an increasing demand for high-refractive-index resins aiming at thinning of lenses and short-time polymerization resins.

In order to cast and mold a plastic lens,
Two molds processed according to the curvature of the lens,
It is performed by injecting a liquid curable composition into a space formed by an adhesive tape and curing the same, and then removing the adhesive tape and the mold.

Conventionally, as a casting method, a method using a gasket as a molding die has been known. The gasket exhibits two molds with curves corresponding to the shape of the lens, supporting the opposing surfaces to form a sealed space, and performing the function of aligning the two molds. I have to do it. Therefore, while the gasket requires flexibility, it also needs to have an accurate shape. If the flexibility of the gasket is insufficient, the gasket will strongly repel the plastic shrinkage due to polymerization shrinkage, which may cause peeling between the mold and the plastic raw material. Due to the irregularity or the deviation of the optical axis, a problem may occur in the optical characteristics of the lens.

As a method for solving this problem, a method using an adhesive tape instead of a gasket has been proposed (Japanese Patent Publication No. 64-2483, Japanese Patent Application Laid-Open No. 55-105).
519, JP-A-56-135031, JP-A-57-8120, etc.). However, in these known techniques, when injecting a liquid curable compound, there is a problem that excess compound overflows and wraps around the back surface of the adhesive tape, which significantly impairs subsequent sealing work and sealing performance. (FIGS. 7 and 8). If the amount of the compound to be injected is reduced in order to avoid this problem, there is a problem that air bubbles and the like enter and another problem of impairing the product quality as a lens occurs. In order to solve these problems, a method of sealing the injection port without directly contacting the overflowing surplus compound, or a sealing method that can maintain the hermeticity even if the back surface is wet with the surplus compound has been studied. I have.
For example, a method has been tried in which a silicone-based caulking agent having a strong adhesive force is adhered to the periphery of the injection port for sealing, or sealing is performed with a tape using an acrylic adhesive having a strong adhesive force. However, general curable compounds,
In particular, isocyanate compounds have high solubility and do not provide sufficient encapsulating properties, but also cause deterioration in the quality of the lens such as coloring, distortion, and cloudiness, and there has been a strong demand for improvement.

[0007]

SUMMARY OF THE INVENTION An object of the present invention is to propose a technique for solving the above problems. That is, an object of the present invention is to obtain a plastic lens having excellent product quality without bubbles, turbidity, distortion, coloring, etc., by increasing the sealing property when casting a plastic lens.

[0008]

According to a first aspect of the present invention, there is provided a method of manufacturing a plastic lens, comprising: a first step of winding an adhesive tape having an adhesive surface on one side around two mold side surfaces to assemble a polymerization mold; A second step of injecting the liquid curable composition into the polymerization mold; and a third step of polymerizing the curable composition injected into the polymerization mold, in this order. The method of manufacturing a plastic lens is characterized in that the first step is performed using an adhesive tape whose non-adhesive surface is a surface having water repellency.

As described above, since the first step is performed using the pressure-sensitive adhesive tape whose non-adhesive surface is a surface having water repellency, it is difficult to completely enter the polymerization mold in the second step. The liquid curable composition that did not roll off without adhering to the surface of the polymerization mold. As a result, complete sealing can be performed in the subsequent sealing operation.

According to a second aspect of the present invention, there is provided a method of manufacturing a plastic lens according to the first aspect, wherein the non-adhesive surface of the adhesive tape is water-repellent before performing the first step. Characterized by having a water repellency imparting step of performing a treatment for imparting water repellency.

As described above, before performing the first step,
By performing the water repellency imparting step of performing the process of imparting water repellency to the non-adhesive surface of the adhesive tape, complete sealing in the sealing operation can be ensured.

According to a third aspect of the present invention, there is provided a plastic lens manufacturing method comprising: a first step of winding an adhesive tape having an adhesive surface on one side around two mold sides to assemble a polymerization mold; And a third step of polymerizing the curable composition injected into the polymerization mold in this order. Having a water repellency imparting step of performing a process of imparting water repellency to the surface of the adhesive tape wound around the side surfaces of the two molds between the first step and the second step. I do.

[0013] As described above, between the first step and the second step, by performing a process of imparting water repellency to the surface of the adhesive tape wound around the side surfaces of the two molds,
Complete sealing in the sealing operation can be ensured.

According to a fourth aspect of the present invention, there is provided a plastic lens manufacturing method according to the second or third aspect, wherein the water-repellent surface has a static contact angle with water of at least 100 degrees. It is characterized by the following.

As described above, by setting the static contact angle of water-repellent surface to water at 100 degrees or more,
In the second step, the liquid curable composition that has not completely entered the polymerization mold falls down without adhering to the surface of the adhesive tape of the polymerization mold. As a result, complete sealing can be performed in the sealing operation.

According to a fifth aspect of the present invention, in the method of manufacturing a plastic lens according to the fourth aspect, the water repellency imparting step is performed by coating a fluorine-modified silicone-based water repellent. Features.

As described above, the water repellency can be effectively imparted by performing the water repellency imparting step by coating the fluorine-modified silicone-based water repellent agent.

According to a sixth aspect of the present invention, there is provided a plastic lens manufacturing method comprising: a first step of winding an adhesive tape having an adhesive surface on one side around the sides of two molds to assemble a polymerization mold; And a third step of polymerizing the curable composition injected into the polymerization mold in this order. The first step is performed using an adhesive tape whose non-adhesive surface is a surface having the property of repelling the curable composition.

As described above, since the first step is performed using the pressure-sensitive adhesive tape whose non-adhesive surface is a surface having the property of repelling the curable composition, the polymerization mold is used in the second step. The liquid curable composition that did not fit inside falls down without adhering to the surface of the polymerization mold. As a result, complete sealing can be performed in the subsequent sealing operation.

According to a seventh aspect of the present invention, in the method for manufacturing a plastic lens according to the sixth aspect, before performing the first step, the hardening is performed on the non-adhesive surface of the adhesive tape. The present invention is characterized by having a property-imparting step of imparting properties to the curable composition, which performs a treatment for imparting properties repelling the hydrophilic composition.

As described above, before performing the first step,
By performing the process of imparting the property of repelling the curable resin to the non-adhesive surface of the adhesive tape to impart the property of repelling the curable resin, it is possible to ensure complete sealing in the sealing operation by performing the property imparting step. .

According to a eighth aspect of the present invention, there is provided a plastic lens manufacturing method comprising: a first step of winding an adhesive tape having an adhesive surface on one side around the sides of two molds to assemble a polymerization mold; And a third step of polymerizing the curable composition injected into the polymerization mold in this order. Between the first step and the second step, the surface of the pressure-sensitive adhesive tape wound around the side surfaces of the two molds is subjected to a treatment for imparting the property of repelling the curable composition. It is characterized by having a composition property imparting step.

As described above, between the first step and the second step, the treatment for imparting the property of repelling the curable composition to the surface of the pressure-sensitive adhesive tape wound around the side surfaces of the two molds. , Complete sealing in the sealing operation can be ensured.

According to a ninth aspect of the present invention, in the method for manufacturing a plastic lens according to the seventh or eighth aspect, the surface provided with the curable composition has static contact with the curable composition. The angle is 100 degrees or more.

As described above, by setting the static contact angle of the surface provided with the curable composition to the curable composition at 100 degrees or more, the surface could not completely enter the polymerization mold in the second step. The liquid curable composition rolls down without adhering to the surface of the adhesive tape of the polymerization type. As a result, complete sealing can be performed in the sealing operation.

According to a tenth aspect of the present invention, in the method for producing a plastic lens according to the ninth aspect, the step of imparting the properties of the curable composition is performed by coating a fluorine-modified silicone-based water repellent. It is characterized by doing.

As described above, by applying the fluorine-modified silicone-based water-repellent agent to carry out the step of imparting the curable composition properties, the properties of the curable composition can be effectively imparted.

In the method for producing a plastic lens according to any one of the first to tenth aspects, the base material of the adhesive tape may be a polyester-based material such as polyethylene terephthalate, a polyolefin-based material such as polypropylene, a polystyrene-based material such as polystyrene or ABS, a polyimide, or the like. Acetate, paper, cloth, metal and the like can be used, but polyethylene terephthalate or polypropylene is preferably used. The pressure-sensitive adhesive tape may be in the form of a tape or a ribbon, and may be any tape that can be wound around the mold. The thickness of the pressure-sensitive adhesive tape is preferably less than 200 μm, and the lower limit may be a thickness that does not cause buckling when the mold is assembled.

In the method for manufacturing a plastic lens according to any one of the first to tenth aspects, as the pressure-sensitive adhesive of the pressure-sensitive adhesive tape, silicone-based, acrylic-based, natural rubber-based, or the like can be used, but the adhesive to the curable compound can be used. From the standpoints of performance and heat resistance, a silicone adhesive containing a silicone rubber component and a silicone resin component is desirable as the adhesive component.

In the method for manufacturing a plastic lens according to any one of the first to tenth aspects, it is preferable that the curable composition contains an isocyanate compound and an active hydrogen compound.

As the liquid curable composition as a raw material of the plastic lens, those having a benzene ring, a naphthalene ring, an ester bond, a carbonate bond or a urethane bond in the molecule can be used. Further, a compound containing sulfur and a halogen element can also be used, and in particular, a compound having a nucleus halogen-substituted aromatic ring can also be used, and particularly suitable for a compound having a nucleus halogen-substituted aromatic ring. Such a plastic lens can be produced by using one or more of the monomers having the above functional groups. For example, styrene,
Divinylbenzene, phenyl (meth) acrylate, benzyl (meth) acrylate, naphthyl (meth) acrylate, methyl (meth) acrylate, diethylene glycol bisallyl carbonate, diallyl (iso) phthalate, dibenzyl itaconate, dibenzyl fumarate, chlorostyrene , Nuclear halogen-substituted styrene, nuclear halogen-substituted phenyl (meth) acrylate, nuclear halogen-substituted benzyl (meth) acrylate, (di) (meth) acrylate of tetrabromobisphenol A derivative, diallyl carbonate of tetrabromobisphenol A derivative, diortochloro Benzyl itaconate, diorthochlorobenzyl fumarate, diethylene glycol bis (orthochlorobenzyl) fumarate, (di) ethylene glycol di (meta) Reaction products of polyfunctional isocyanates such as acrylate, glycidyl methacrylate, xylylene diisocyanate, hexamethylene diisocyanate, reaction products of monohydroxyacrylate and polyfunctional isocyanate of nuclei halogen-substituted phenol derivatives, monohydroxyacrylate and polyfunctional products of nuclei halogen-substituted biphenyl derivatives Examples include a reactant of isocyanate, a reactant of xylene diisocyanate and a polyfunctional mercaptan, a reactant of glycidyl methacrylate and a polyfunctional methacrylate, and a mixture thereof. The effect of imparting water repellency and the like is particularly large in the case of a compound containing an isocyanate and an active hydrogen compound which are difficult to seal.

Further, in the method for manufacturing a plastic lens according to any one of the first to fourteenth aspects, a first embodiment uses a thermocompression bonding tape having one surface which is a thermocompression bonding surface in place of the adhesive tape having one surface having an adhesion surface. Can also be performed.

The above-mentioned water-repellent treatment or curable composition treatment (hereinafter referred to as “water-repellent treatment or the like”) includes those generally referred to as oil-repellent treatment and waterproofing treatment.
Application of a water-repellent treatment agent and a release agent used for general plastic films, papers and the like can be mentioned.

The types of the water-repellent agent or the curable composition-based agent (hereinafter referred to as "water-repellent agent, etc.") can be broadly classified into silicone type and non-silicone type. Silicones can be classified into silicone alone and copolymers or blends of silicone and other polymers, and non-silicones can be classified into olefins, long-chain alkyl group-containing polymers, and fluorine and others. In terms of performance, silicone-based, particularly fluorine-modified silicone-based, is excellent, but non-silicone-based may be used because the peelability may be excessive depending on the application such as an adhesive tape. Non-silicone is also effective in the case where the adhesion of the pressure-sensitive adhesive due to migration of a water-repellent agent or the like in the silicone is hindered. Examples of the water-repellent treatment agent include fluorine-modified silicone, addition-type silicone in which a polysiloxane containing vinyl groups at both ends or side complexes of the molecule and methylhydrogenpolysiloxane are reacted under a platinum-based catalyst, and silanol at both ends of the molecule. Photopolymerization initiators for condensation-type silicones that react dimethylpolysiloxane and methylhydrogenpolysiloxane containing functional groups in the presence of an organotin-based catalyst, and silicones with (meth) acrylic, mercapto, and epoxy groups at the molecular terminals UV curing or electron beam curing. As a method of applying the water repellent agent, roll coating is the most excellent in terms of uniformity at the sheet stage and production cost, but the shape of the sheet, a drying method of the water repellent agent, the application time, etc. Depending on the case, dip coating, spray coating and spin coating are also possible. These water repellent agents may be applied to an adhesive tape in advance and then wound around a mold, or may be applied after being wound around a mold. When using an adhesive tape for the adhesive tape, a water-repellent treatment agent or the like may be applied in advance before applying the adhesive to the base material, or a water-repellent treatment agent or the like may be applied after applying the adhesive. Good.

[0035]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in more detail with reference to examples and drawings. All parts in the examples are parts by weight.

Example 1 One side of a polyethylene terephthalate biaxially oriented sheet substrate having a width of 25 mm and a thickness of 50 μm was coated with 100 parts of a silicone pressure-sensitive adhesive (trade name: X40-3004, manufactured by Shin-Etsu Chemical Co., Ltd.) and a catalyst (Shin-Etsu Chemical Co., Ltd.) An adhesive consisting of 3 parts (trade name: DX-3004, manufactured by Kogyo Co., Ltd.) and 47 parts of toluene was applied by a roll coater, and then heated at 140 ° C. for 10 minutes to obtain an adhesive sheet.
On the surface of the sheet thus obtained opposite to the water-repellent treatment film,
100 parts of a fluorine-modified silicone release agent (trade name X70-201, manufactured by Shin-Etsu Chemical Co., Ltd.) and 0.5 part of a catalyst (trade name, CAT-PL-50T, manufactured by Shin-Etsu Chemical Co., Ltd.) are uniformly applied by a roll coater. At 150 ° C. for 1 minute to form a water-repellent film.

The two glass molds 1 and 2 forming the optical surfaces of the lenses are fixed with a jig so that the distance therebetween forms a lens, and an adhesive sheet is formed around the outer peripheral side surfaces of the glass molds 1 and 2. 3 is an adhesive 3c inside, water-repellent treated surface 3
It wound so that a might be outside (FIGS. 1 and 2).

The molding mold 1 thus produced
In 0, 60 parts of dicyclohexylmethane-4,4′-diisocyanate, 40 parts of 4-hydroxy-4′-mercaptodiphenylsulfone, 0.05 part of dimethyltin dichloride, N, N-dimethylcyclohexylamine as the curable composition 5 0.05 part and 0.1 part of the alkyl acid phosphate were injected with the injection needle 4 (FIG. 3). The curable composition overflowing from the inlet 7 rolled down on the sheet and did not remain on the sheet at all (FIGS. 5 and 6).
The contact angle of the tape with the curable composition was 110 °.

Thereafter, the injection port was sealed with a fluororesin tape 6 (Nitoflon tape manufactured by Nitto Electric Industrial Co., Ltd.) (FIG. 4), and gradually heated from 40 ° C. to 110 ° C. in a constant temperature bath over 20 hours. Ascended and polymerized. After cooling to room temperature, the sheet was removed, the mold was removed, and a lens was obtained.

The obtained lens was free of air bubbles, cloudiness, distortion and coloring, and was satisfactory in product quality.

(Method of Evaluating Lens) Bubble: Air and the like that entered the outer peripheral portion of the lens were visually evaluated. Cloudiness: Fogging of the lens was evaluated by a projector. Distortion: The internal distortion of the lens was evaluated using a polarimeter.

Coloring: The lens was placed on a piece of white paper, and the coloring was evaluated.

Example 2 The sheet base, adhesive, assembling method, curable compound, injection method, sealing method, and polymerization method used in Example 1 were used. Alternatively, 100 parts of a silicone-based addition release agent (trade name: SD-7226, manufactured by Toray Dow Corning Silicone Co., Ltd.) and a catalyst (Toray Dow Corning Silicone Co., Ltd.) Product name J
RX212) was sufficiently mixed in advance and uniformly applied by a roll coater, and then heated at 100 ° C. for 10 minutes to form a water-repellent film.

Example 3 The sheet base material, adhesive, assembling method, curable compound, injection method, sealing method and polymerization method used in Example 1 were used. (Pafluoroheptyl) propyltriaminosilane was applied by spray coating. Then 60 ° C
For 30 minutes to form a water-repellent film.

Example 4 Using the sheet substrate, adhesive, water repellent, assembling method and polymerization method used in Example 2,
As a curable compound, 100 parts of diethylene glycol bisallyl carbonate and 3 parts of diisopropyl peroxydicarbonate were injected from a hole of a sheet previously prepared with hot air. Thereafter, sealing was performed with a silicone caulking agent.

Example 5 The adhesive used in Example 1
Using a water repellent agent, an assembling method, a curable compound, an injection method, a sealing method, and a polymerization method, as a sheet base material, a width of 25 m
m, a polypropylene sheet having a thickness of 50 μm was used.

Example 6 Nylon 66 having a crystallinity of less than 20% was applied to one side of a polyethylene terephthalate biaxially oriented sheet substrate having a width of 25 mm and a thickness of 50 μm to a thickness of 50 μm to form an adhesive layer. . This adhesive tape was brought into contact with the sides of two glass molds designed to form a lens having a diameter of 70 mmφ, a frequency of -4.00 D, and a center thickness of 2 mm, and at the same time, a heat roller heated to 250 ° C. From the base material side, it was press-bonded so as to cover both of the two molds, rotated at a speed of 2 rpm, thermo-compressed, wound and assembled.

A water-repellent film was formed on the thus-assembled mold in the same manner as in Example 3, and the injection, sealing, and polymerization were performed in the same manner as in Example 3 to obtain a lens.

[Comparative Example 1] The same procedure as in Example 1 was carried out except that the water-repellent agent used in Example 1 was not used, and an adhesive tape having no water-repellent film was used. The curable composition overflowing from the injection port leaked onto the sheet and spread around the injection port, making it difficult to seal with a fluororesin tape (FIGS. 7 and 8).

As a result, the appearance of the obtained lens was remarkably impaired due to bubbles entering through the injection port.
In addition, distortion was generated from the bubble generating portion, and the lens optical characteristics were not satisfactory.

Comparative Example 2 The water-repellent treatment agent used in Example 1 was not used, and a silicone caulking agent was used as a sealing method. All other steps were the same as in Example 1.

As a result, the obtained lens was colored yellow due to the dissolution of the silicone-based caulking agent, and was partially cloudy, thereby significantly impairing the appearance of the lens.

Table 1 shows the results of Examples 1 to 6 and Comparative Examples 1 and 2. For evaluation, 100 lenses were molded each, and the quality was judged based on the plastic lens inspection standard.

[0054]

[Table 1]

[Brief description of the drawings]

FIG. 1 is a front view and a side view of a molding mold (polymerization mold) according to a first embodiment.

FIG. 2 is a sectional view of the molding mold of FIG. 1 as viewed from a left side surface.

FIG. 3 is an explanatory view of a step of injecting a liquid curable composition.

FIG. 4 is an explanatory view of a sealing step after filling the curable composition.

FIG. 5 is a sectional view showing a state after an injection step in the first embodiment.

FIG. 6 is a side view showing a state after an injection step in the first embodiment.

FIG. 7 is a sectional view showing a state after an injection step in Comparative Example 1.

FIG. 8 is a side view showing a state after an injection step in Comparative Example 1.

[Explanation of symbols]

 1, 2, glass mold 3, adhesive sheet 4, injection needle 5, curable composition 6, sealing tape 7, injection port 10, molding Mold

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification code FI G02B 1/04 G02B 1/04 // B29K 75:00 B29L 11:00

Claims (15)

[Claims] 1. A first step of winding an adhesive tape having an adhesive surface on one side around the sides of two molds to assemble a polymerization mold, and injecting a liquid curable composition into the polymerization mold. And a third step of polymerizing the curable composition injected into the polymerization mold in this order. In the method for producing a plastic lens, the surface other than the adhesive surface is repelled. A method for producing a plastic lens, wherein the first step is performed using an adhesive tape that is a water-soluble surface. 2. The method for producing a plastic lens according to claim 1, wherein a water repellency is imparted to the non-adhesive surface of the adhesive tape before performing the first step. A method for producing a plastic lens, comprising the steps of: 3. A first step of winding an adhesive tape having an adhesive surface on one side around the sides of two molds to assemble a polymerization mold, and injecting a liquid curable composition into the polymerization mold. And a third step of polymerizing the curable composition injected into the polymerization mold in this order. The first step and the second step A method for producing a plastic lens, comprising a water repellency imparting step of performing a process of imparting water repellency to the surface of the adhesive tape wound around the side surfaces of the two molds between the steps. 4. The method for producing a plastic lens according to claim 2, wherein the water-repellent surface has a static contact angle with water of 100.
A method for producing a plastic lens, characterized in that the temperature is not less than a degree. 5. The method of manufacturing a plastic lens according to claim 4, wherein the step of imparting water repellency is performed by coating a fluorine-modified silicone-based water repellent. 6. A first step of wrapping an adhesive tape having an adhesive surface on one side around the side surfaces of two molds to assemble a polymerization mold, and injecting a liquid curable composition into the polymerization mold. And a third step of polymerizing the curable composition injected into the polymerization mold in this order, wherein the non-adhesive surface is A method for producing a plastic lens, wherein the first step is performed using an adhesive tape having a property of repelling a curable composition. 7. The method for manufacturing a plastic lens according to claim 6, wherein before the first step is performed, a property of repelling the curable composition is imparted to the non-adhesive surface of the adhesive tape. A method for producing a plastic lens, comprising a step of imparting a repellent composition property for performing a treatment. 8. A first step of assembling a polymerization mold by winding an adhesive tape having an adhesive surface on one side around two mold sides, and injecting a liquid curable composition into the polymerization mold. And a third step of polymerizing the curable composition injected into the polymerization mold in this order. The first step and the second step A step of imparting a property of imparting the property of repelling the curable composition to the surface of the pressure-sensitive adhesive tape wound around the side surfaces of the two molds between the two steps. Manufacturing method of plastic lens. 9. The method for producing a plastic lens according to claim 7, wherein a static contact angle of the surface provided with the curable composition to the curable composition is 100 degrees or more. Characteristic method of manufacturing plastic lenses. 10. The method for producing a plastic lens according to claim 9, wherein the step of imparting the curable composition properties is performed by coating a fluorine-modified silicone-based water-repellent agent. Production method. 11. The method of manufacturing a plastic lens according to claim 1, wherein a base material of said adhesive tape is polyethylene terephthalate. 12. The method of manufacturing a plastic lens according to claim 1, wherein a base material of said adhesive tape is polypropylene. 13. The method for producing a plastic lens according to claim 1, wherein the adhesive component of the adhesive tape contains a silicone rubber component and a silicone resin component. 14. The method for producing a plastic lens according to claim 1, wherein said curable composition contains an isocyanate compound and an active hydrogen compound. 15. The method of manufacturing a plastic lens according to claim 1, wherein a first heat-pressable tape is used instead of the first pressure-sensitive adhesive tape instead of the first pressure-sensitive adhesive tape. A method for producing a plastic lens, comprising performing a step.