摘要:
Provided is a glass roll formed by winding a glass film into a roll, in which a minimum winding radius of the glass film is optimized. Thus, the glass film is reliably prevented from breaking due to static fatigue, and is able to be stored for long periods. A glass roll (1), which is formed by winding a glass film (2) into a roll, has a configuration in which the glass film has a minimum winding radius (R) satisfying the following relation: R≧(T/2)[(2.3/σ)×E−1], where σ represents flexural strength of the glass film (2) obtained by a 3-point bending test, T represents a thickness of the glass film, and E represents a Young's modulus of the glass film.
摘要:
Provided is a method, including: performing heat treatment, under a state in which a thick core plate glass (2a) having a higher thermal expansion coefficient and a thin surface-layer plate glass (3a) having a lower thermal expansion coefficient are laminated together, so that the laminated portion has a temperature equal to or higher than the lower softening point out of the softening points of the core plate glass (2a) and the surface-layer plate glass (3a), thereby melt-bonding the core plate glass (2a) and the surface-layer plate glass (3a); and then performing cooling so as to attain a temperature less than the lower strain point out of strain points of the core plate glass (2a) and the surface-layer plate glass (3a), to thereby form a compression stress in a surface layer portion (3) corresponding to the surface-layer plate glass (3a) and form a tensile stress in a core portion (2) corresponding to the core plate glass (2a).
摘要:
A recording liquid and an ink-jet recording method in which the recording liquid is used to record an image on a recording material comprising a substrate having provided thereon an ink-receiving layer containing a silicon-containing pigment and a binder resin by means of an ink-jet recording technique are disclosed, the recording liquid containing a solvent and at least one dye represented by formula (I): ##STR1## wherein A represents a substituted or unsubstituted phenyl, or naphthyl group; B represents a substituted or unsubstituted phenylene or naphthylene group; C represents an organic group as defined in the specification.
摘要:
A recording medium comprising a non-porous substrate and a coating layer formed thereon, said coating layer comprising a carboxyl group-containing ionomer-type hydrophilic urethane resin and organic and/or inorganic fine particles.
摘要:
A glass film laminate comprises a glass film (2) and a supporting glass (3) laminated to each other. At least one of the contacting surface of the glass film (2) and the contacting surface of the supporting glass (3) comprises a region with a relatively large surface roughness and a region with a relatively small surface roughness.
摘要:
Provided is a method, including: performing heat treatment under a state in which a thick core plate glass (2a) having a higher thermal expansion coefficient and a thin surface-layer plate glass (3a) having a lower thermal expansion coefficient are brought into surface-to-surface contact so that a bonding surface (2x) and (3x) of the core plate glass (2a) and the surface-layer plate glass (3a) attain a close contact state, thereby directly bonding the core plate glass and the surface-layer plate glass (2a) and (3a); then, additionally performing heat treatment so that the surface-to-surface contact portion has a temperature equal to or higher than a lower strain point out of strain points of the core plate glass and the surface-layer plate glass; and then, performing cooling so as to attain a temperature lower than the lower strain point, to thereby form a compression stress in a surface layer portion (3) corresponding to the surface-layer plate glass (3a) and form a tensile stress in a core portion (2) corresponding to the core plate glass (2a).
摘要:
To provide a glass roll capable of reliably preventing a glass film from breaking from an end surface of the glass film as an origin of breakage, a glass roll (1) is formed by winding a glass film (2) into a roll while superposing the glass film (2) on a protective sheet (3), the glass film (2) being formed by an overflow downdraw method to have a thickness of 1 μm or more and 200 μm or less, and to have each end surface in a width direction to form a cut surface cut by laser splitting.
摘要:
Provided is a package form, with which cleanness of a glass film is ensured and the glass film is prevented from breaking. The package form is effective in minimizing the number of glass film processing steps to be performed before packaging and after unpackaging. As the package form for a glass film, provided is a glass roll (1) formed by winding a glass film (2) into a roll while superposing the glass film (2) on a protective sheet (3), the glass film (2) being formed by an overflow downdraw method and having exposed front and back surfaces.
摘要:
A method of producing a glass film comprises a first step of forming an inorganic thin film on a surface of a supporting glass so that a surface of the inorganic thin film after being formed has a surface roughness Ra of 2.0 nm or less after film formation, a second step of forming a glass film laminate by laminating a glass film having a surface roughness Ra of 2.0 nm or less on the surface of the inorganic thin film in a state of being in contact with each other, a third step of carrying out treatment involving heating with respect to the glass film laminate, and a fourth step of peeling off the glass film from the supporting glass after the treatment involving heating.
摘要:
Disclosed is a recording liquid comprising a carbon black dispersed in an aqueous medium, which is characterized in that a toluene extract of the carbon black has an absorbance of 0.05 or less at .lambda.max within the range of from 330 nm to 340 nm or at 337.5 nm when the toluene extract does not have .lambda.max within the range of from 330 nm to 340 nm. The recording liquid can be used in ink-jet recording in high safety. During and after long storage of the recording liquid, the carbon black does not precipitate out. Using the recording liquid, reliable recording can be attained with good jettable durability of the liquid. Even when the recording liquid is recorded onto ordinary papers, high-quality images with good water-fastness and good light-fastness can be formed. The recording liquid is especially suitable for thermal ink-jet recording systems.