摘要:
A process for production of corrugated board using an aqueous adhesive which contains polyvinyl alcohol and clay, or polyvinyl alcohol, clay and water-soluble boron compound, the ratio of clay to polyvinyl alcohol being in the range of 200 to 600 parts by weight based on 100 parts by weight of polyvinyl alcohol, the ratio of water-soluble boron compound being not more than 15 parts by weight based on 100 parts by weight of polyvinyl alcohol, the solid content of the adhesive being 25 to 60% by weight characterized in that(a) a polyvinyl alcohol concentration in the solution excluding solid other than polyvinyl alcohol from adhesive being in the region bounded by the following formulas:Y.gtoreq.-0.0014 X+9.4 (i)Y.ltoreq.-0.0061 X+26.3 (II)200.ltoreq.X.ltoreq.3500 (iii) wherein Y is defined by the following formula: ##EQU1## P=Polyvinyl alcohol content in the adhesive (by weight) W=Water content in the adhesive (by weight) and X is degree of polymerization of polyvinyl alcohol,(b) the viscosity of the adhesive measured by a Brookfield viscometer being from 200 to 6000 centipoises at 85.degree. C., and the rate of increase of the viscosity of the adhesive being in the range of 1.5 to 8 times when the temperature of adhesive is dropped from 85.degree. to 30.degree. C.,(c) the adhesive, of which temperature is 60.degree. to 95.degree. C., being applied onto the flute tips of corrugated medium to manufacture corrugated board,and an aqueous adhesive therefor. The process for production of a corrugated board has excellent effect on heat energy saving characterized in that said corrugated board can be manufactured at high speed without heating after application of the water-base adhesive at a temperature of 60.degree.-95.degree. C., and the adhesive is easy to handle and has improved adhesion property.
摘要:
A process for production of corrugated board using an aqueous adhesive which contains polyvinyl alcohol and clay, or polyvinyl alcohol, clay and water-soluble boron compound, the ratio of clay to polyvinyl alcohol being in the range of 200 to 600 parts by weight based on 100 parts by weight of polyvinyl alcohol, the ratio of water-soluble boron compound being not more than 15 parts by weight based on 100 parts by weight of polyvinyl alcohol, the solid content of the adhesive being 25 to 60% by weight characterized in that(a) a polyvinyl alcohol concentration in the solution excluding solid other than polyvinyl alcohol from adhesive being in the region bounded by the following formulas:Y.gtoreq.-0.0014 X+9.4 (i)Y.ltoreq.-0.0061 X+26.3 (ii)200.ltoreq.X.ltoreq.3500 (iii) wherein Y is defined by the following formula: ##EQU1## and X is degree of polymerization of polyvinyl alcohol, (b) the viscosity of the adhesive measured by a Brookfield viscometer being from 200 to 6000 centipoises at 85.degree. C., and the rate of increase of the viscosity of the adhesive being in the range of 1.5 to 8 times when the temperature of adhesive is dropped from 85.degree. to 30.degree. C.,(c) the adhesive, of which temperature is 60.degree. to 95.degree. C., being applied onto the flute tips of corrugated medium to manufacture corrugated board,and an aqueous adhesive therefor. The process for production of a corrugated board has excellent effect on heat energy saving characterized in that said corrugated board can be manufactured at high speed without heating after application of the water-base adhesive at a temperature of 60.degree.-95.degree. C., and the adhesive is easy to handle and has improved adhesion property.
摘要:
A liquid ejecting apparatus includes the following elements. A carriage allows a head ejecting liquid which is curable by light irradiation to move in the moving direction intersecting the transporting direction in which a medium is transported. A precuring light source, provided for the carriage, radiates light for precuring to dots formed by applying the liquid ejected from the moving head onto the medium. A full curing light source is provided for the carriage so as to be located downstream of the precuring light source in the transporting direction. The full curing light source radiates light for full curing to the dots which have been irradiated with light for precuring.
摘要:
A printing device includes a plurality of heads ejecting ink cured by irradiation of light and arranged in a transport direction of a medium, a plurality of temporary curing light sources provided respectively corresponding to the plurality of heads and respectively irradiating light for temporary curing to dots formed on the medium by the respective heads, and a main curing light source irradiating light for main curing to the dots to which the plurality of temporary curing light sources have irradiated the light, wherein the printing device has a first printing mode where a clear ink is ejected from a head placed at the upper stream in the transport direction when seen from heads ejecting color inks, and a second printing mode where the clear ink is ejected from a head placed at the lower stream in the transport direction when seen from the heads ejecting the color inks.
摘要:
An objective of the present invention is to provide a three-dimensional position/attitude recognition apparatus, a three-dimensional position/attitude recognition method, and a three-dimensional position/attitude recognition program, that can perform three-dimensional position/attitude recognition on an object by analyzing an image of an edge portion with a simple configuration. A three-dimensional position/attitude recognition apparatus according to the present invention includes: a detection part for detecting an edge direction of an object by analyzing an image element of an object in at least one of first and second images that have been captured; a determination part for determining whether or not to change relative positions of the object and at least one of first and second image capturing parts based on a result of the detection; and a movement part for moving at least one of the first and second image capturing parts relative to the object.
摘要:
An electronic unit includes a first circuit board having a power semiconductor device and an electrolytic capacitor and a second circuit board having an electronic component to control the power semiconductor device. The second circuit board is arranged perpendicular to the first circuit board and along the surface of the electrolytic capacitor. The electronic unit further includes a connecting member being jointed at one end thereof to the first circuit board and jointed at the other end thereof to the second circuit board for electrical connection between the first and second circuit boards.
摘要:
A power converter apparatus that includes a substrate, plate-like positive and negative interconnection members, capacitors, and a cover is disclosed. Pairs of groups of switching elements are mounted on the substrate. The cover is arranged over the substrate to encompass the switching elements, the positive interconnection member, the negative interconnection member, and the capacitor. The positive interconnection member and the negative interconnection member each have a terminal portion that is joined to a circuit pattern on the substrate by ultrasonic bonding.
摘要:
A printing apparatus includes a head which discharges coating ink which coats a medium and electromagnetic radiation-curable ink for image formation having a surface tension lower than the surface tension of the coating ink, a curing unit which irradiates the electromagnetic radiation-curable ink for image formation with electromagnetic waves to cure the electromagnetic radiation-curable ink for image formation, and a controller which makes the head execute a first discharge processing of discharging the coating ink to coat the medium and makes the head execute a second discharge processing of discharging the electromagnetic radiation-curable ink for image formation onto the medium coated by the coating ink to form an image in this order, and then, makes the curing unit execute a curing processing of irradiating the electromagnetic radiation-curable ink for image formation discharged onto the medium with the electromagnetic waves to cure the electromagnetic radiation-curable ink for image formation.
摘要:
A printing device includes a plurality of heads ejecting ink cured by irradiation of light and arranged in a transport direction of a medium, a plurality of temporary curing light sources provided respectively corresponding to the plurality of heads and respectively irradiating light for temporary curing to dots formed on the medium by the respective heads, and a main curing light source irradiating light for main curing to the dots to which the plurality of temporary curing light sources have irradiated the light, wherein the printing device has a first printing mode where a clear ink is ejected from a head placed at the upper stream in the transport direction when seen from heads ejecting color inks, and a second printing mode where the clear ink is ejected from a head placed at the lower stream in the transport direction when seen from the heads ejecting the color inks.
摘要:
A printing apparatus includes: a first nozzle which ejects a first ink used to print an image on a medium and cured by irradiation of light; a pre-curing light source which emits a pre-curing light to dots formed as the first ink ejected from the first nozzle is landed onto the medium; a second nozzle which ejects a second ink used to coat a surface of the medium and cured by irradiation of light onto the medium after being irradiated by the light from the pre-curing light source; and a main-curing light source which emits a main-curing light to the medium, wherein the irradiation energy of the light emitted to a unit area of the medium from the pre-curing light source is changed according to whether the second ink is ejected from the second nozzle.