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Regenerated particle aggregate, process for producing regenerated particle aggregate, regenerated-particle-aggregate-containing paper containing regenerated particle aggregate as internal additive, an

A manufacturing method and technology of agglomerates, applied in chemical instruments and methods, waste addition, inorganic compound addition, etc., can solve the problems of great quality change, uneven particle size and enlargement of clay, and achieve good ink adhesion, High optical refractive index and excellent dispersion properties

Inactive Publication Date: 2008-12-10
DAIO PAPER CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the papermaking sludge is fumigated in this method, there is a serious disadvantage that not only energy cannot be effectively extracted from the papermaking sludge, but energy needs to be input instead.
Furthermore, there is a problem that the particle size of the generated clay becomes large due to unevenness, and it cannot be used as a coating pigment.
Therefore, if all the papermaking sludge is not used selectively, the quality of fillers and pigments for papermaking will be greatly reduced, and the quality will change greatly and unstable
[0017] That is, the regenerated pellets obtained by existing known methods are always limited to the recovery of simple papermaking pellets, and their quality is not suitable for use as recycled pellets for papermaking, and is lacking in quality stability.

Method used

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  • Regenerated particle aggregate, process for producing regenerated particle aggregate, regenerated-particle-aggregate-containing paper containing regenerated particle aggregate as internal additive, an
  • Regenerated particle aggregate, process for producing regenerated particle aggregate, regenerated-particle-aggregate-containing paper containing regenerated particle aggregate as internal additive, an
  • Regenerated particle aggregate, process for producing regenerated particle aggregate, regenerated-particle-aggregate-containing paper containing regenerated particle aggregate as internal additive, an

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Embodiment

[0203] The following examples will be given to describe the present invention more specifically, but the present invention is not limited to these examples.

[0204]

[0205] The characteristics of the regenerated particle agglomerates given in Table 1 in the production examples were studied, and for some of them, BPGW (30 mass %), NBKP (30 mass %), LBKP (25 mass %), DIP (15 mass %) The raw material pulp is added as shown in Table 2, and the weight of the obtained paper is 64g / m 2 The properties of the paper were studied.

[0206] The evaluation method is as follows.

[0207] (1) Measurement of oil absorption: measured in accordance with JIS K 5101.

[0208] (2) Measurement of average particle size and particle size distribution: Add 10 mg of sample to 8 ml of methanol solution, and disperse for 3 minutes with an ultrasonic disperser (output power: 80 watts). The solution was measured using a Coulter counter particle size distribution measuring device (TA-II type manufact...

Embodiment 47

[0265] First, a regenerated particle aggregate is produced according to claim 5 of the invention of the present application.

[0266] Then, as a pigment, 20 parts by weight of regenerated particle aggregates, 50 parts by weight per 100 parts by weight of all pigments, Parts by weight of heavy calcium carbonate (average particle diameter 1.4 μm) and 30 parts by weight of clay (average particle diameter 0.8 μm) relative to all 100 parts by weight of pigment, as a binder, mixed relative to all 100 parts by weight of pigment 5 parts by weight of styrene-butadiene emulsion (acrylonitrile content: 5% by weight, Tg: -10°C, average particle diameter: 130nm, gel content: 85%), mixed with respect to all 100 parts by weight of the pigment 5 parts by weight of urea phosphate starch, mixed with 0.08 parts by weight of acrylic acid-acrylamide copolymer relative to all 100 parts by weight of the pigment, and dispersed to prepare a coating solution for the upper side with a solid content conc...

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Abstract

The present invention relates to a regeneration particle aggregate, a method thereof for making the regeneration particle aggregate, a regeneration particle aggregate integrated paper which is integrated with the regeneration particle aggregate at the inner side, and a printing used coated paper which is coated with the regeneration particle aggregate. The aim of the invention is to provide various papers which use the recyclable regeneration particle aggregate to make a contribution to environment protection. In the making process of various papers, the regeneration particle aggregate is at least contained to be used as an added filling agent, coating used paint, etc. The regeneration particle aggregate uses the voided naps discharged from the wastepaper treating process as a principal raw material. The regeneration particle aggregate is obtained mainly through the processes of dewatering process, drying process, burning process and crushing process.

Description

technical field [0001] The present invention relates to a recycled particle aggregate, a method for producing the same, a recycled particle aggregate internally filled with recycled particle aggregates, and a coated paper for printing coated with a recycled particle aggregate, wherein the recycled particle aggregate is deinked Fluff is the main raw material, and it is regenerated through the dehydration process, drying process, firing process, and crushing process. Background technique [0002] In recent years, people have paid more and more attention to the recycling of waste paper from the aspects of environmental protection, resource protection and waste reduction. As a source of waste paper used as a raw material for these recycled papers, old newspapers, old magazine paper, old corrugated cardboard, and the like are mainly used at present. In addition, recently there has been a trend of recycling waste office paper generated in offices throughout the entire building, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H17/01C01B33/12C01B33/26C02F11/00D21H17/68C01F7/02C01F11/02
Inventor 难波日佐男高桥圣明村田润治大角博之川锅俊明武田彰
Owner DAIO PAPER CORP
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