JP2002046143A - Low reflection member and method for producing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide both a low reflection member and a method for producing the same, in which removal of a contaminant is easy and durability is excellent and a stainproofing layer combined with low reflection properties can be easily formed. SOLUTION: Both a hard coat layer 4 and a stainproofing layer 5 are laminated at least in order on the face of one hand of a transparent substrate 1 and the stainproofing layer 5 consists of a silane compound shown in a general formula 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a low-reflection member which can be used as a cover part of a display portion of a cellular phone, a video camera, a digital camera, an automobile device, and the like, and a method of manufacturing the same.

[0002]

2. Description of the Related Art In a cellular phone, a video camera, a digital camera, an automobile device, etc., a display portion is constituted by a combination with a liquid crystal panel or an organic EL panel. In the display part, a pattern such as a transparent substrate or a border molded into a convex lens shape is formed for the purpose of preventing damage to the liquid crystal panel, enlarging the display of the liquid crystal panel, and decorating the vicinity of the liquid crystal panel. Covered by a transparent component made of a transparent substrate.

[0003] Then, since external light is reflected and reflected on the surface of the cover component, and the visibility of the liquid crystal panel is lowered, there is a demand to suppress the reflected light as much as possible.

[0004] Also, the cover parts, when used, grime,
As fingerprints, sweat, cosmetics, and the like are adhered to and the image quality is improved, such as colorization of the liquid crystal panel, it is also important to prevent such contamination from occurring in order to improve the image quality.

Therefore, it has been required to provide an antifouling layer which has low reflectivity and which is hardly stained or which is easy to wipe off. For example, as an antifouling layer having low reflectivity, an organic polysiloxane having a silanol terminal used in Japanese Patent Application Laid-Open No. 4-338901 is used, and an antifouling layer is formed on a low-reflection layer made of an inorganic oxide by a vacuum film forming method. A method of forming a soil layer is conceivable.

[0006]

However, the antifouling layer described above is excellent in low reflectivity because it is combined with a low reflection layer, but has the following problems with oily contamination such as fingerprints. Was. In other words, the low-reflection layer made of an inorganic oxide is particularly liable to be stained, and it is difficult to wipe off contaminants that have adhered to it because the ability is insufficient with a silanol-terminated organic polysiloxane.In order to wipe this off, the wiper can be slid many times, Strong detergents and organic solvents must be used to wipe off, which results in the removal of the antifouling layer,
There is a problem that stain resistance is impaired.

Further, it is necessary to provide a low reflection film and an antifouling film made of an inorganic oxide, and there is a problem that the cost is high.

Therefore, the present invention eliminates the above-mentioned disadvantages, and enables easy formation of an antifouling layer which is easy to remove contaminants, has excellent durability, and also has low reflectivity. An object is to provide a member and a manufacturing method thereof.

[0009]

Means for Solving the Problems A low reflection member and a method of manufacturing the same according to the present invention are configured as follows to achieve the above object.

That is, in the low reflection member of the present invention, a hard coat layer and an antifouling layer are laminated at least in order on one surface of a transparent substrate, and the antifouling layer is made of a silane compound represented by the general formula 1. Configured.

Further, in the above invention, a configuration may be adopted in which a design layer is provided below the hard coat layer.

In the above invention, the antifouling layer may have a thickness of 1.0 to 100 nm.

Further, according to the method of manufacturing a low reflection member of the present invention, a transfer material having at least a semi-cured hard coat layer formed on a base sheet is set in a mold so that the base sheet is in contact with the cavity surface, A transparent molten resin is injected into a mold to obtain an integrated product of a transparent substrate made of a resin and a transfer material, then the base sheet is peeled off, and then a silane compound represented by the general formula 1 is used on the hard coat layer. The antifouling layer was formed by a dry coating method.

In the above invention, the hard coat layer may be cured by heating, irradiating ultraviolet rays or irradiating an electron beam after forming the antifouling layer.

[0015]

Embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a sectional view showing one embodiment of the low reflection member of the present invention. FIG. 2 is a sectional view showing one embodiment of a transfer material used in the method for manufacturing a low reflection member according to the present invention. FIG. 3 is a cross-sectional view showing one step of the method for manufacturing a low reflection member according to the present invention. In the figure, 1 is a transparent substrate, 2 is an adhesive layer, 3 is a pattern layer, 4 is a hard coat layer, 5 is an antifouling layer, 6
Is a low reflection member, 7 is a mold, 8 is a transfer material, 9 is a base sheet, and 10 is a transfer layer.

In the low reflection member 6 of the present invention, a hard coat layer 4 and an antifouling layer 5 are laminated at least in order on one surface of the transparent substrate 1, and the antifouling layer 5 is a silane compound represented by the general formula 1. (See FIG. 1).

In order to provide the hard coat layer 4 on the transparent substrate 1, it is preferable to use a molding simultaneous transfer method using a transfer material 8.

The transfer material 8 is obtained by providing a transfer layer 10 made of a hard coat layer 4 on a base sheet 9 (see FIG. 2). Instead of forming all the layers formed on the transparent substrate 1 of the low reflection member 6 by the simultaneous molding transfer method, only the layers that are preferably formed by the simultaneous molding transfer method are formed by the simultaneous molding transfer method, The other layers are preferably formed separately. In particular, it is suitable that the design layer 3 and the hard coat layer 4 are formed by a molding simultaneous transfer method.

The base sheet 9 may be made of a polypropylene resin, a polyethylene resin, a polyamide resin,
What is used as a base sheet of a usual transfer material, such as a resin sheet of a polyester resin, an acrylic resin, a polyvinyl chloride resin, or the like, can be used.

In the case where the transfer layer 10 has good releasability from the base sheet 9, the transfer layer 10 may be provided directly on the base sheet 9. In order to improve the releasability of the transfer layer 10 from the base sheet 9, a release layer may be formed over the entire surface before the transfer layer 10 is provided on the base sheet 9.

The hard coat layer 4 is formed entirely on the base sheet 9 or the release layer. When the base sheet 9 is peeled off after the simultaneous transfer of the molding, the hard coat layer 4 is peeled off from the base sheet 9 or the release layer and becomes the outermost surface of the transferred object, and becomes a layer for increasing the surface strength of the low reflection member 6. . Also,
Until the base sheet 9 is peeled off, it is in a state where it is shielded from the outside world and its surface activity is maintained, and it becomes a layer having excellent adhesion with the antifouling layer 5 to be formed later. In particular, when the antifouling layer 5 is promptly formed by the dry coating method, the antifouling layer 5 becomes a layer having better adhesiveness.

As the hard coat layer 4, a reactive diluent is mixed with a composition of a prepolymer or oligomer having a polymerizable double bond or a prepolymer or oligomer having an epoxy group, and if necessary, a photopolymerization initiator is added. It is advisable to use the compound obtained. Specifically, a resin used as an ultraviolet curable resin or an electron beam curable resin may be used. In addition, a thermoplastic resin or an organic solvent may be mixed to improve printability. A particularly preferred composition of the hard coat layer 4 is composed of 50 to 70% by weight of a urethane acrylate resin, 27 to 49% by weight of an acrylic resin, and 1 to 3% by weight of a surface reinforcing agent which is an inorganic filler such as colloidal silica. And so on. Examples of the method for forming the hard coat layer 4 include a coating method such as a gravure coating method, a roll coating method, and a comma coating method, and a printing method such as a gravure printing method and a screen printing method.

The hard coat layer 4 is in a semi-cured state after the simultaneous molding and transfer until the antifouling layer 5 is formed thereon, and it is necessary to have many unreacted condensation or polymerization sites. It is.

The design layer 3 is formed on the hard coat layer 4 if necessary. The design layer 3 is a layer for decorating the low reflection member 6.

The design layer 3 is usually formed as a printing layer. As the material of the printing layer, a polyvinyl resin, a polyamide resin, a polyester resin, an acrylic resin, a polyurethane resin, a polyvinyl acetal resin, a polyester urethane resin, a cellulose ester resin,
It is preferable to use a coloring ink containing a resin such as an alkyd resin as a binder and a pigment or dye of an appropriate color as a coloring agent. As a method for forming the printing layer, a normal printing method such as an offset printing method, a gravure printing method, or a screen printing method may be used. The printing layer is usually provided partially.

The design layer 3 may be made of a metal thin film layer or a combination of a printed layer and a metal thin film layer. The metal thin film layer is for expressing metallic luster as the design layer 3, and is formed by a vacuum evaporation method, a sputtering method, an ion plating method, a plating method, or the like. Depending on the metallic gloss color you want to express, aluminum,
Metals such as nickel, gold, platinum, chromium, iron, copper, tin, indium, silver, titanium, lead, and zinc, and alloys or compounds thereof are used. The metal thin film layer is usually formed partially. Further, when providing the metal thin film layer, a front anchor layer or a rear anchor layer may be provided in order to improve adhesion to other layers.

Further, an adhesive layer 2 may be formed on the transparent substrate 1 in order to adhere the above layers. As the adhesive layer 2, a heat-sensitive or pressure-sensitive resin suitable for the material of the transparent substrate 1 is appropriately used. For example, when the material of the transparent substrate 1 is an acrylic resin, an acrylic resin may be used.
When the material of the transparent substrate 1 is a polyphenylene oxide / polystyrene resin, a polycarbonate resin, a styrene copolymer resin, or a polystyrene blend resin, an acrylic resin, a polystyrene resin, or a polyamide having an affinity for these resins. A system resin or the like may be used. Further, when the material of the transparent substrate 1 is polypropylene resin, chlorinated polyolefin resin, chlorinated ethylene-
Vinyl acetate copolymer resins, cyclized rubbers, and coumarone indene resins can be used. As a method of forming the adhesive layer 2,
There are coating methods such as a gravure coating method, a roll coating method, and a comma coating method, and printing methods such as a gravure printing method and a screen printing method. Further, it is also possible to form an adhesive layer 2 by laminating an adhesive sheet made of the above material by a laminating method or the like.

The configuration of the transfer layer 10 is not limited to the above-described embodiment. For example, when a material having excellent adhesion to the transparent substrate 1 is used as the material of the design layer 3, the adhesive layer 2 may be used. Can be omitted.

Next, a method for decorating the surface of a resin molded article as an object to be transferred by using the transfer material 8 and the simultaneous transfer method by injection molding will be described.

First, a transfer material 8 as a transfer material 8 is fed into a molding die 7 composed of a movable die and a fixed die (see FIG. 3). At this time, the sheet-like transfer material 8 may be fed one by one, or a necessary portion of the long transfer material 8 may be sent intermittently. When a long transfer material 8 is used, it is preferable to use a feeding device having a positioning mechanism so that the register between the symbol layer 3 of the transfer material 8 and the molding die 7 coincides with each other. Further, when the transfer material 8 is intermittently fed, if the transfer material 8 is fixed by the movable type and the fixed type after the position of the transfer material 8 is detected by the sensor, the transfer material 8 is always kept at the same position. It can be fixed, and there is no displacement of the design layer 3, which is convenient.

After the molding die 7 is closed, a molten resin is injected and filled into the die 7 from a gate provided on the fixed die, and a transfer material 8 is adhered to the surface of the transfer material simultaneously with the formation of an object to be transferred. .

As a molding resin, a polystyrene resin,
General-purpose resins such as polyolefin resins, ABS resins, AS resins, and AN resins can be given. In addition, polyphenylene oxide polystyrene resin, polycarbonate resin, polyacetal resin, acrylic resin,
General-purpose engineering resins such as polycarbonate-modified polyphenylene ether resin, polybutylene terephthalate resin, polybutylene terephthalate resin, ultrahigh molecular weight polyethylene resin, polysulfone resin, polyphenylene sulfide resin, polyphenylene oxide resin, polyarylate resin, polyetherimide resin, A super engineering resin such as a polyimide resin, a liquid crystal polyester resin, or a polyallyl heat-resistant resin can also be used.

The shape of the transparent substrate 1 may be a flat plate, or may have a two-dimensional or three-dimensional curved surface.

After cooling the resin molded article as the transfer object,
The molding die 7 is opened and the resin molded product is taken out. Finally,
The base sheet 9 of the transfer material 8 is peeled off. In this way,
By transferring only the transfer layer 10 to a molded product, the hard coat layer 4 and the like can be formed on the transparent substrate 1.

The antifouling layer 5 is a layer for preventing the low-reflection member 6 from being stained and for exhibiting low reflectivity, and is formed on the hard coat layer 4. The antifouling layer 5 has the general formula 1
It is important to consist of a silane compound represented by Here, in the general formula, X represents a hydrogen atom or a lower alkyl group. Y represents a hydrolyzable group. 1 represents an integer of 1 to 50. M represents an integer of 0 to 2. N represents an integer of 1 to 10.

The silane compound represented by the general formula 1 is usually distributed in a low-concentration dilute solution such as a 1% by weight or less fluorinated solvent solution, a petroleum solvent solution, or an alcoholic solvent solution. Used by the coating method and the dip coating method. In use, it is common practice to use an inorganic hard coat layer and an anchor layer as a base in order to prevent poor adhesion. Further, when a spin-coating method or a dip-coating method is applied to a molded product having a two-dimensional curved surface shape or a three-dimensional curved surface shape transferred simultaneously with molding, it is difficult to make the film thickness of the antifouling layer uniform. In the dip coating method, an antifouling layer is formed on both surfaces of the low reflection member.

In the present invention, a dry coating method is used to form the antifouling layer 5 using the silane compound represented by the general formula 1. The dry coating method referred to in the present invention refers to a physical gas layer stacking method for evaporating a silane compound, such as a resistance heating method under vacuum or normal pressure, an electron beam heating method, an ion beam heating method, and a high-frequency heating method. However, in such a dry coating method, if the silane compound is rapidly heated, corrosive hydrofluoric acid may be generated, so that heating under mild conditions such as resistance heating at a decomposition temperature or lower under vacuum or normal pressure. Is preferably performed.

For example, an appropriate amount of a dilute solution of a silane compound is weighed into a heating dish in a vapor deposition tank, and a low-boiling-point fluorine-containing solvent is evaporated and evacuated so as not to react with water as much as possible. It is good to film. At that time, the higher the concentration of the silane compound dilute solution, the shorter the processing time required, the less the silane compound is decomposed, and the better the adhesion to the hard coat layer 4.
Therefore, the concentration is preferably 10% by weight or more. When the experiment was repeated under these conditions, the best water repellency, oil repellency and durability were obtained among the silane compounds represented by the general formula 1 among various materials. Further, the antifouling layer 5 formed in a vacuum has a water repellency and an oil repellency when the same amount of the silane compound is used as compared with the antifouling layer 5 formed by a dip coating method in the air. The durability was excellent.

The antifouling layer 5 formed by the dry coating method is replaced with the antifouling layer 5 formed by the dip coating method.
It is considered that the reason why the adhesiveness is superior to that of the above is a difference in adhesion due to the presence or absence of a solvent during film formation and the presence or absence of moisture in the atmosphere. When a silane compound is deposited, the reason why the hard coat layer 4 is preferably in a semi-cured state is considered to be a difference in surface state and a difference in activity due to the presence or absence of a reactive site.

In the silane compound represented by the general formula 1, X is a hydrogen atom or a lower alkyl group. The lower alkyl group usually has 1 to 5 carbon atoms. X is preferably a hydrogen atom. Examples of the hydrolyzable group for Y include a chlorine atom, a bromine atom, a halogen atom such as an iodine atom, a RO group, a RCOO group, and R ₂ C = CR.
CO, R ₂ C = NO, RC = NO, R ₂ N, and RCONR groups are preferred. More preferably, a chlorine atom, CH ₃ O _group, a C 2 _{H 5} O groups. Most preferably, it is a CH ₃ O group. l shows the integer of 1-50. Also,
m shows the integer of 0-2. Preferably it is 0. Also,
n shows the integer of 1-10. Preferably it is 1-5.

It should be noted that the silane compound represented by the general formula 1 is unstable in the atmosphere including humidity, and is stored after being diluted with a low boiling point fluorine-based solvent such as perfluorohexane. Examples of such a solvent include perfluoroaliphatic hydrocarbons having usually 5 to 12 carbon atoms such as perfluorohexane, perfluoromethylcyclohexane, perfluoro-1,3-dimethylcyclohexane, and bis (trifluoromethyl). ) Polyfluorinated aromatic hydrocarbons such as benzene, and polyfluorinated aliphatic hydrocarbons.

The silane compound represented by the general formula 1 can be easily obtained by subjecting a commercially available perfluoropolyether to silane treatment.

The thickness of the antifouling layer 5 is preferably 1.0 to 100 nm from the viewpoint of a low reflection effect and a contamination prevention effect. If the thickness is less than 1.0 nm, the antifouling property and the low reflectivity are insufficient, and there is a possibility that the antifouling property is easily peeled off by sliding of a cloth or the like. If it exceeds 100 nm, although low reflectivity is provided, the hardness may be reduced or the durability may be deteriorated. In particular, when the thickness is 1.0 to 20 nm, excellent durability can be obtained, which is preferable.

The refractive index of the antifouling layer 5 made of the silane compound represented by the general formula 1 is preferably 1.40 or less. This is because in order for a single-layer film to exhibit low reflectivity, it is necessary that the refractive index is lower than the refractive indexes of the base material and the hard coat material. The lower the value, the better the low reflectivity. Acrylic resin commonly used as a base polymer of the hard coat layer 4 has a refractive index of 1.49.
The silane compound represented by Formula 1 can be manufactured to have a refractive index of 1.40 or less due to the effect of a perfluoro group, and can exhibit excellent low reflectivity.

Finally, if necessary, a hardening treatment of the hard coat layer 4 is performed by heating, irradiation of ultraviolet rays, irradiation of electron beams, or the like. The hard coat layer 4 can be made to be a stronger layer by performing a curing treatment within a range in which the silane compound represented by the general formula 1 is not decomposed. Also,
Immediately forming the antifouling layer 5 in the highly active semi-cured state of the hard coat layer 4 immediately after peeling the base sheet 9, thereby further increasing the adhesion strength between the hard coat layer 4 and the antifouling layer 5. Can be. The time for performing the curing treatment is preferably within 24 hours after the peeling of the base sheet 9, and particularly, immediately after the peeling of the base sheet 9, the most excellent adhesion strength can be obtained.

[0047]

EXAMPLES (Example 1) A polyethylene terephthalate film was used as a base sheet, and a hard coat layer composed of a resin containing an ultraviolet-curable acrylic epoxy copolymer as a main component was formed thereon by a gravure coating method. A pattern layer was formed using an adhesive ink to obtain a transfer material.

Further, a molding die for molding a cover part of a display portion of the mobile phone was prepared.

The transfer material is placed so that the base sheet side of the transfer material is in contact with the concave portion of the mold, and then the molten acrylic resin is injected into the mold, and the transparent substrate and the transfer material are integrally formed simultaneously with the formation of the transparent substrate. Then, the molded article was taken out of the mold and the base sheet was peeled off, to obtain a molded article having a design layer composed of characters and pictures around the surface.

Subsequently, the molded product was immediately set in a vapor deposition tank, and a fluorine-containing silane represented by the following structural formula 2 was used as a silane compound. 1m covered with
0.1 g was dropped into a 1 l evaporating dish, and the perfluorohexane solvent was evaporated at room temperature, followed by 1.33 × 10 ⁻² Pa.
After evacuation as described below, the evaporating dish was resistance-heated to about 300 ° C. and dry-coated to a thickness of 20 nm to form an antifouling layer.

[0051]

Embedded image

Next, ultraviolet irradiation was performed about 0.2 Mrad per molded product to complete a low reflection member.

When the various physical properties of the low-reflection member, which is a cover part of the display portion of the mobile phone, were measured, the results shown in Table 1 were obtained.

The transmittance indicates the degree of low reflectivity.
Using a spectrophotometer (UV-3100 manufactured by Shimadzu Corporation), the transmittance of the low-reflection member at a wavelength of 550 nm by an integrating sphere was measured. The initial water contact angle indicates the degree of water repellency. Using a contact angle meter, a water drop having a diameter of 1.0 mm is formed at the needle tip at room temperature, and the water drop is brought into contact with the surface of the low-reflection member to form a water drop. And the angle between the droplet and the surface generated at this time was measured. In addition, the water contact angle after sliding indicates the degree of durability. After the surface of the low-reflection member was reciprocated 50 times at 2.45 N (250 g load) with a polyester woven fabric (Microstar manufactured by Teijin Limited). The contact angle to water was measured by the method described above. The hexadecane falling angle indicates the degree of oil repellency. Further, the cost is a relative value where the cost when the antifouling layer is not formed (Comparative Example 1) is 1.0. In addition, anti-glare feeling refers to observing a cover component from a very close distance and visually evaluating the reflection or transparency of the fluorescent lamp, etc., ◎ is very good, ○ is good,
X indicates a defect, respectively.

[0055]

[Table 1]

In Example 1, the water contact angle before sliding was as high as 114 °, and had excellent water repellency. Further, the hexadecane falling angle before sliding was as low as 8 °, indicating that it had excellent oil repellency. In addition, the water contact angle after sliding and the change in hexadecane falling angle after sliding were small, and the durability of water repellency and oil repellency was excellent. In addition, the anti-glare feeling was good and the anti-glare property was excellent.

Comparative Example 1 A low reflection member was obtained in the same manner as in Example 1 except that no antifouling layer was formed. When the various physical properties of the low reflection member were measured, the results shown in Table 1 were obtained.

In Comparative Example 1, the water contact angle before sliding was as low as 60 °, which was extremely poor in water repellency. Further, the hexadecane falling angle before sliding was as high as 70 °, which was extremely poor in oil repellency.

(Comparative Example 2) Before forming an antifouling layer, electron beam evaporation was performed on the hard coat layer in the order of silicon dioxide, titanium dioxide, silicon dioxide, titanium dioxide, and silicon dioxide so as to have a predetermined thickness. Was performed to form a low reflection layer. Subsequently, C ₈ F ₁₇ C ₂ H was used as a silane compound for the antifouling layer.
_A low reflection member was obtained in the same manner as in Example 1 except that a 10% solution of 4Si (OCH ₃ ) ₃ (XC98-A5382 manufactured by GE Toshiba Silicone Co., Ltd.) was used. When the various physical properties of the low reflection member were measured, the results shown in Table 1 were obtained.

In Comparative Example 2, the water contact angle before sliding was 6 ° lower than that in Example 1, and the water repellency was poor. In addition, the water contact angle after sliding decreased by 10 ° from before sliding, resulting in poor durability. Further, the hexadecane falling angle before sliding was 21 ° higher than that in Example 1, and the oil repellency was poor. In addition, the antiglare feeling was very good and excellent in low reflectivity, but the cost was high because the low reflective layer was formed.

Comparative Example 3 A pattern layer and a hard coat layer were formed on a transparent substrate in the same manner as in Example 1. Then, the same silane compound as in Example 1 was used as the antifouling layer, the perfluorohexane solution was diluted to 0.1%, and the back surface of the transparent substrate was subjected to a mask treatment and dip coated to obtain a thick film. An antifouling layer having a thickness of 20 nm was formed.
When the various physical properties of the low reflection member were measured, the results shown in Table 1 were obtained.

In Comparative Example 3, the water contact angle before sliding was 1 ° lower than that in Example 1, and the water repellency was slightly inferior. Further, the water contact angle after sliding decreased by 9 ° from that before sliding, resulting in poor durability. Further, the hexadecane falling angle after sliding was 8 ° higher than before sliding, and the oil repellency and durability were poor.

[0063]

Since the present invention employs the above-described configuration, the following effects can be obtained.

In the low reflection member of the present invention, a hard coat layer and an antifouling layer are laminated at least in order on one surface of a transparent substrate, and the antifouling layer is made of a silane compound represented by the general formula (1). It has an antifouling layer on only one side of the substrate, which is easy to remove contaminants, has excellent durability, and has low reflectivity.

In the method of manufacturing a low reflection member according to the present invention, an antifouling layer is formed on a semi-cured hard coat layer by a dry coating method using a silane compound represented by the general formula (1). Easy to remove and durable,
An antifouling layer having low reflectivity can be easily formed on only one surface of the transparent substrate with a uniform film thickness.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an embodiment of a low reflection member according to the present invention.

FIG. 2 is a sectional view showing one embodiment of a transfer material used in the method for manufacturing a low reflection member according to the present invention.

FIG. 3 is a cross-sectional view showing one step of the method for manufacturing a low reflection member according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Transparent substrate 2 Adhesive layer 3 Design layer 4 Hard coat layer 5 Antifouling layer 6 Low reflection member 7 Mold 8 Transfer material 9 Base sheet 10 Transfer layer

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification code FI Theme coat ゛ (Reference) G02B 1/10 B29L 9:00 // B29L 7:00 11:00 9:00 G02B 1/10 A 11: 00Z F term (for reference) 2K009 AA08 AA15 BB24 CC03 CC33 CC42 DD02 DD03 DD05 DD06 EE05 4D075 AC88 BB21Y BB26Z BB46Z BB47Z BB56Y BB85Y CA34 CB02 DC24 EB42 4F206 AA16 AA33 J01 AG03 AHBA13J01A03BH

Claims (5)

[Claims] 1. A low reflection member (1), wherein a hard coat layer and an antifouling layer are laminated at least in order on one surface of a transparent substrate, and the antifouling layer is made of a silane compound represented by the general formula (1). In the general formula, X is a hydrogen atom or a lower alkyl group, Y is a hydrolyzable group, l is an integer of 1 to 50, m is an integer of 0 to 2, and n is an integer of 1 to 10). Embedded image 2. The low reflection member according to claim 1, further comprising a design layer below the hard coat layer. 3. The low reflection member according to claim 1, wherein the antifouling layer has a thickness of 1.0 to 100 nm. 4. A transfer material having at least a semi-cured hard coat layer formed on a base sheet is set in a mold so that the base sheet is in contact with the cavity surface, and a transparent molten resin is injected into the mold. Obtaining an integrated product of a transparent substrate made of a resin and a transfer material, peeling the base sheet, and then forming an antifouling layer on the hard coat layer by a dry coating method using a silane compound represented by the general formula (1). A method for manufacturing a low reflection member, comprising: 5. The method according to claim 4, wherein the hard coat layer is cured by heating, irradiating ultraviolet rays or irradiating an electron beam after forming the antifouling layer.