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Patent
Nippon Paper Industries Co. | Date: 2017-03-15

The present invention provides a thermosensitive recording medium, which is excellent in heat discoloration resistance in the blank portions and bar code readability, and is excellent further in water resistance and printing (recording) run-ability. Provided is a thermosensitive recording medium comprising a support, a thermosensitive recording layer installed on the support and a protective layer on the thermosensitive recording layer, wherein the thermosensitive recording layer comprises two kinds of electron accepting color developing agents, a specific sulfonic acid compound and a specific diphenyl sulfone compound, and both of the thermosensitive recording layer and the protective layer respectively comprise crosslinking agents, and at least one, preferably both, of the thermosensitive recording layer and the protective layer comprises an ammonium zirconium carbonate as the crosslinking agent.


Patent
Nippon Paper Industries Co. | Date: 2017-02-08

The present invention aims to provide techniques for preparing complexes of calcium carbonate particles having an average primary particle size of less than 1 m and a fiber. Complexes of calcium carbonate microparticles having an average primary particle size of less than 1 m and a fiber can be synthesized efficiently by synthesizing calcium carbonate in a solution bearing the fiber while injecting a liquid into a reaction vessel.


Patent
Nippon Paper Industries Co. | Date: 2017-02-08

The present invention aims to provide techniques for efficiently preparing calcium carbonate particles having an average primary particle size of less than 1 m. Calcium carbonate microparticles having an average primary particle size of less than 1 m can be synthesized efficiently by synthesizing calcium carbonate in the presence of cavitation bubbles.


Patent
Nippon Paper Industries Co. and Kyushu University | Date: 2017-03-01

An object of the present invention is to find a component that is safe and is capable of effectively exerting various effects such as prevention or amelioration of diabetes, prevention or amelioration of metabolic syndrome, amelioration of insulin resistance, inhibition of an increase in a postprandial blood sugar level, and inhibition of -glucosidase activity. The present invention provides agents for preventing or ameliorating diabetes or the like, the agents including a component of a hybrid plant of Camellia sinensis and Camellia taliensis as an active ingredient. The hybrid plant is preferably Sun Rouge, and each of the agents preferably includes a tea leaf extract of the hybrid plant.


Patent
Nippon Paper Industries Co. | Date: 2016-08-10

The purpose of the present invention is to provide a thermosensitive recording medium with an increased gloss in the blank and printed portions, excellent color developing sensitivity and excellent printing run-ability, particularly excellent printing run-ability at high-speed printing. Provided is a thermosensitive recording medium having a thermosensitive recording layer comprising a colorless or pale colored basic leuco dye and an electron accepting developing agent, an intermediate layer and a gloss layer as an outermost layer in this order on a substrate, wherein the intermediate layer is formed by containing a carboxyl group-containing resin and the gloss layer is formed by containing a long chain alkyl group-containing resin and an emulsion type silicone copolymer resin. The long chain alkyl group-containing resin is preferably an acrylic resin containing long-chain alkyl group(s) and the silicone copolymer resin is preferably a silicone-acryl copolymer resin and/or a silicone-urethane copolymer resin.


Patent
Nippon Paper Industries Co. | Date: 2016-11-23

Dry solids of anionically modified cellulose nanofibers with good redispersion are provided by incorporating 5 to 300% by mass of a water-soluble polymer relative to the anionically modified cellulose nanofibers during the preparation of the dry solids of anionically modified cellulose nanofibers.


Patent
Nippon Paper Industries Co. | Date: 2016-06-08

The present invention provides a hydrolysate of a lignocellulosic material, and specifically a method of using a hydrolysis treatment liquid obtained by a hydrolysis treatment of a lignocellulosic material before kraft cooking in order to obtain dissolving pulp for uses other than use of a fuel. Specifically, the present invention provides a dispersant containing the hydrolysate obtained by hydrolysis treatment of the lignocellulosic material. The dispersant of the present invention has excellent dispersibility for a substance such as an inorganic substance and an organic substance without limitation of powder, particulate, granular, fiber, and flat plane shapes.


Patent
Nippon Paper Industries Co. | Date: 2016-12-14

The objective of the present invention is to provide a thermosensitive recording having an excellent heat discoloration resistance, especially an excellent heat discoloration resistance in the blank portions. Provided is a thermosensitive recording medium comprising (i) a support, (ii) an undercoat layer installed on the support comprising a pigment and a binder as main components, and (iii) a thermosensitive recording layer installed on the undercoat layer comprising a colorless or pale colored electron donating leuco dye and an electron accepting color developing agent as main components, wherein the pigment contained in the undercoat layer is a rosette type precipitated calcium carbonate comprising spindle-shaped primary particles aggregated radially to form secondary particles, and the bulk density of the rosette type precipitated calcium carbonate is 240 g/L or less.


Patent
Nippon Paper Industries Co. | Date: 2016-01-20

It is an object of the present invention to provide a chlorinated polyolefin resin having favorable adhesion to a polyolefin resin and high solubility in a composition containing an alcohol-based solvent. The present invention provides a chlorinated polyolefin resin that exhibits, in infrared spectroscopy spectrum measurement, a peak area ratio A/B x 100 of 10% or higher, a peak area ratio C/B x 100 of 30 to 80%, and a peak area ratio A/C x 100 of 30% or higher (wherein A is the area of a peak resulting from hydroxyl groups, B is the area of a peak resulting from methylene groups, and C is the area of a peak resulting from carbonyl groups). The present invention also provides an ink composition for gravure printing or flexography that contains the chlorinated polyolefin resin, a printed material obtained using the above composition, and a printing method using the above composition.


Patent
Nippon Paper Industries Co. | Date: 2016-05-25

The object is to provide Clupak paper having excellent elongation characteristics and strength characteristics, so that when the Clupak paper is processed into a sack, the sack rarely breaks. The Clupak paper is manufactured using a gap-former paper-making machine equipped with a Clupak system, in such a way that its longitudinal tensile energy absorption index and lateral tensile energy absorption index as specified in JIS P8113 become 2.5 J/g or more and 1.0 J/g or more, respectively. The paper has excellent strength characteristics in both the longitudinal and lateral directions, especially in the longitudinal direction.

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