JP2019064709A - Water-dispersible double bag - Google Patents
Water-dispersible double bag Download PDFInfo
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- JP2019064709A JP2019064709A JP2017193201A JP2017193201A JP2019064709A JP 2019064709 A JP2019064709 A JP 2019064709A JP 2017193201 A JP2017193201 A JP 2017193201A JP 2017193201 A JP2017193201 A JP 2017193201A JP 2019064709 A JP2019064709 A JP 2019064709A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 101
- 239000000853 adhesive Substances 0.000 claims abstract description 28
- 230000001070 adhesive effect Effects 0.000 claims abstract description 28
- 239000002002 slurry Substances 0.000 claims description 25
- 239000000843 powder Substances 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 12
- 239000010881 fly ash Substances 0.000 claims description 11
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 10
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 10
- 239000000126 substance Substances 0.000 claims description 9
- 239000000839 emulsion Substances 0.000 claims description 8
- 239000002245 particle Substances 0.000 claims description 8
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims description 6
- -1 alkali metal salt Chemical class 0.000 claims description 4
- 229920002678 cellulose Polymers 0.000 claims description 4
- 239000001913 cellulose Substances 0.000 claims description 4
- 229910052783 alkali metal Inorganic materials 0.000 claims description 3
- 125000004181 carboxyalkyl group Chemical group 0.000 claims description 3
- 239000000470 constituent Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 239000011236 particulate material Substances 0.000 claims 2
- 239000013618 particulate matter Substances 0.000 claims 1
- 239000000123 paper Substances 0.000 description 57
- 239000006185 dispersion Substances 0.000 description 20
- 238000012360 testing method Methods 0.000 description 16
- 239000004568 cement Substances 0.000 description 14
- 239000008187 granular material Substances 0.000 description 11
- 239000004570 mortar (masonry) Substances 0.000 description 10
- 239000011347 resin Substances 0.000 description 7
- 229920005989 resin Polymers 0.000 description 7
- 229920003169 water-soluble polymer Polymers 0.000 description 7
- 239000003795 chemical substances by application Substances 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 239000000835 fiber Substances 0.000 description 5
- 239000002655 kraft paper Substances 0.000 description 5
- 238000002156 mixing Methods 0.000 description 5
- 238000002360 preparation method Methods 0.000 description 5
- 239000011122 softwood Substances 0.000 description 5
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000000654 additive Substances 0.000 description 4
- 230000000996 additive effect Effects 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 4
- 239000002585 base Substances 0.000 description 4
- 229920000233 poly(alkylene oxides) Polymers 0.000 description 4
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 3
- 239000011398 Portland cement Substances 0.000 description 3
- 239000003513 alkali Substances 0.000 description 3
- 239000001768 carboxy methyl cellulose Substances 0.000 description 3
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 3
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 3
- 229940105329 carboxymethylcellulose Drugs 0.000 description 3
- 239000003638 chemical reducing agent Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 238000009415 formwork Methods 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 229920003043 Cellulose fiber Polymers 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- 241000209094 Oryza Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000008367 deionised water Substances 0.000 description 2
- 229910021641 deionized water Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 235000013312 flour Nutrition 0.000 description 2
- 238000006703 hydration reaction Methods 0.000 description 2
- 238000004898 kneading Methods 0.000 description 2
- 238000006386 neutralization reaction Methods 0.000 description 2
- 231100000989 no adverse effect Toxicity 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000009958 sewing Methods 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 125000000542 sulfonic acid group Chemical group 0.000 description 2
- 239000004604 Blowing Agent Substances 0.000 description 1
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 241000984084 Helianthemum nummularium subsp. grandiflorum Species 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 241000209140 Triticum Species 0.000 description 1
- 235000021307 Triticum Nutrition 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000007798 antifreeze agent Substances 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- 238000003490 calendering Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 125000002843 carboxylic acid group Chemical group 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000006266 etherification reaction Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 229910001425 magnesium ion Inorganic materials 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000010893 paper waste Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000007127 saponification reaction Methods 0.000 description 1
- 229910021487 silica fume Inorganic materials 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- RPACBEVZENYWOL-XFULWGLBSA-M sodium;(2r)-2-[6-(4-chlorophenoxy)hexyl]oxirane-2-carboxylate Chemical compound [Na+].C=1C=C(Cl)C=CC=1OCCCCCC[C@]1(C(=O)[O-])CO1 RPACBEVZENYWOL-XFULWGLBSA-M 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Wrappers (AREA)
- Bag Frames (AREA)
Abstract
Description
本発明は、水に分散することのできる水分散性重袋に関する。 The present invention relates to a water dispersible heavy bag that can be dispersed in water.
セメント、米、小麦粉、飼料等の粉粒体からなる重量物を保管、輸送等する際に、紙製の重袋が広く用いられている。重袋は、一枚または重ね合わせた複数枚の紙が、筒状となるように接着され、底部を補強用テープで封止し、縫着されている（特許文献１，２参照）。また、重袋を形成する紙には、一般的に、強度に優れたクラフト紙が用いられる（特許文献３，４参照）
重袋には、内容物を安定して保管するための防水性、防湿性、また、古紙としてリサイクルするための易離解性が要求される（特許文献５）。ここで、易離解性とは、紙に機械的せん断をかけることによりパルプにほぐせることを意味し、本発明の水分散性とは異なる概念である。そして、水分散性を有する重袋は、本発明者らが調査した限りでは存在しない。
Paper heavy bags are widely used when storing, transporting, etc. heavy materials consisting of powdery particles such as cement, rice, wheat flour, feed and the like. In the heavy bag, one sheet or a plurality of stacked sheets are adhered in a tubular shape, the bottom is sealed with a reinforcing tape, and sewed (see Patent Documents 1 and 2). In addition, kraft paper excellent in strength is generally used as paper for forming heavy bags (see Patent Documents 3 and 4).
The heavy bag is required to be waterproof, moisture-proof, and easily deagglomerated for recycling as waste paper for stably storing the contents (Patent Document 5). Here, easy disaggregation means that pulp is loosened by applying mechanical shear to paper, which is a concept different from the water dispersibility of the present invention. And the heavy bag which has water dispersibility does not exist as far as the present inventors investigated.
本発明は、水分散性を有する重袋を提供することを課題とする。 An object of the present invention is to provide a heavy bag having water dispersibility.
１．水分散性紙からなり、胴貼り部及び底部が水溶性または水分散性接着剤で封止されていることを特徴とする水分散性重袋。
２．前記水分散性紙が、カルボキシアルキルセルロースのアルカリ金属塩、または、冷水可溶性ポリビニルアルコールを含むことを特徴とする１．に記載の水分散性重袋。
３．前記水分散性紙が、紙面ｐＨ６．０以上１１．０以下であることを特徴とする１．または２．に記載の水分散性重袋。
４．前記水溶性または水分散性接着剤が、酢酸ビニルエマルジョン系接着剤であることを特徴とする１．〜３．のいずれかに記載の水分散性重袋。
５．コンクリート用粉粒体が収容されていることを特徴とする１．〜４．のいずれかに記載の水分散性重袋。
６．前記コンクリート用粉粒体が、１５ｋｇ以上６０ｋｇ以下収容されていることを特徴とする５．に記載の水分散性重袋。
７．前記コンクリート用粉粒体が、混和材または化学混和剤であることを特徴とする５．または６．に記載の水分散性重袋。
８．前記コンクリート用粉粒体が、加熱改質フライアッシュであることを特徴とする５．〜７．のいずれかに記載の水分散性重袋。
９．５．〜８．のいずれかに記載の水分散性重袋をコンクリート用粉粒体を収容したままの状態でミキサに投入して、他のコンクリート構成材料と混練することを特徴とするスラリー製造方法。
1. What is claimed is: 1. A water dispersible heavy bag comprising a water dispersible paper, wherein the body sticking portion and the bottom portion are sealed with a water soluble or water dispersible adhesive.
2. The water dispersible paper is characterized in that it contains an alkali metal salt of carboxyalkyl cellulose or cold water soluble polyvinyl alcohol. Water dispersible heavy bag as described in.
3. The water dispersible paper has a pH on the paper surface of 6.0 or more and 11.0 or less. Or 2. Water dispersible heavy bag as described in.
4. The water-soluble or water-dispersible adhesive is a vinyl acetate emulsion adhesive. ~ 3. The water dispersible heavy bag according to any of the above.
5. Characterized in that powder particles for concrete are accommodated. ~ 4. The water dispersible heavy bag according to any of the above.
6. The said granular material for concrete is accommodated in 15 kg or more and 60 kg or less. Water dispersible heavy bag as described in.
7. The above-mentioned powder for concrete is an admixture or a chemical admixture. Or 6. Water dispersible heavy bag as described in.
8. 5. The powder for granular material is heat-reformed fly ash. ~ 7. The water dispersible heavy bag according to any of the above.
9.5. To 8. A method for producing a slurry, comprising: charging the water-dispersible heavy bag according to any one of the above to a mixer in a state of containing powder particles for concrete, and kneading the mixture with other concrete constituent materials.
本発明の水分散性重袋は、容易に水中に分散することができる。水分散性紙の紙面ｐＨが６．０以上１１．０以下である水分散性重袋は、内容物を酸、または、強アルカリによる悪影響をもたらすことなく収容することができる。酢酸ビニルエマルジョン系接着剤は、接着強度と水分散性とに優れており、重袋に要求される強度と迅速な水分散性とを両立することができる。
本発明の水分散性重袋は、容易に水に分散するため、リサイクルが容易である。
The water-dispersible heavy bag of the present invention can be easily dispersed in water. The water-dispersible heavy bag having a paper surface pH of 6.0 or more and 11.0 or less of the water-dispersible paper can contain the contents without adversely affecting acid or strong alkali. The vinyl acetate emulsion-based adhesive is excellent in adhesive strength and water dispersibility, and can achieve both strength required for a heavy bag and quick water dispersibility.
The water dispersible heavy bag of the present invention is easily dispersed in water, so it is easy to recycle.
本発明の水分散性重袋は、コンクリート用粉粒体の収容に好適に利用することができる。本発明の水分散性重袋は、強度に優れているため、一袋あたりコンクリート用粉粒体を１５ｋｇ以上６０ｋｇ以下収容することができる。コンクリート用粉粒体は、他のコンクリート構成材料と水と混練してスラリーとなるが、本発明の水分散性重袋は、容易に水に分散するため、コンクリート用粉粒体を収容した重袋ごとミキサに投入することができる。水分散性重袋に収容されているコンクリート用粉粒体の量とスラリー中のコンクリート用粉粒体の組成とを調整することにより、スラリー調製時に本発明の水分散性重袋を１袋、２袋と袋単位で投入することができ、コンクリート用粉粒体の重さを測定する必要がないため、スラリー調製作業が容易である。なお、このスラリーが硬化した水硬性硬化物には、パルプ、水溶性接着剤等の重袋由来物が混入するが、水硬性硬化物全量に対する重袋由来物の量は僅かであるため、これらが水硬性硬化物に悪影響を及ぼすことはなく、むしろ、パルプによる強度向上が期待できる。 The water-dispersible heavy bag of the present invention can be suitably used for containing the granular material for concrete. Since the water-dispersible heavy bag of the present invention is excellent in strength, it can contain 15 kg or more and 60 kg or less of powder particles for concrete per bag. Although the granular material for concrete is mixed with other concrete constituent materials and water to form a slurry, the water-dispersible heavy bag of the present invention is a weight that accommodates the granular material for concrete because it is easily dispersed in water. The bag can be fed into the mixer together. By adjusting the amount of the particulates for concrete contained in the water dispersible heavy bag and the composition of the particulates for concrete in the slurry, one bag of the water dispersible heavy bag of the present invention at the time of slurry preparation, Since it can be introduced in two bags and bag units, and it is not necessary to measure the weight of the powder for concrete, the slurry preparation operation is easy. In addition, although the thing derived from heavy bags, such as a pulp and a water-soluble adhesive, is mixed in the hydraulic hardening thing which this slurry hardened | cured, since the quantity of the heavy bag origin to the hydraulic hardening thing whole quantity is small, There is no adverse effect on the hydraulically cured product, but rather, the improvement in strength by pulp can be expected.
本発明は、水分散性紙からなり、胴貼り部及び底部が水溶性または水分散性接着剤で封止されている水分散性重袋に関する。重袋の形状としては、水分散性紙を糸でミシン縫いしたものではなく、水溶性または水分散性接着剤で貼合して封かんしたものであれば、特に限定されない。例えば、ＪＩＳ Ｚ０１０２に規定されるひだなし開口式底ばり袋（Ａ−１）、ひだなし開口式折りばり袋（Ａ−３）、ひだ付き開口式底ばり袋（Ａ−２）、ひだ付き開口式折りばり袋（Ａ−４）、ひだ付き開口式二重折りばり袋（Ａ−５）、ひだ付き開口式補強紙付き折りばり袋（Ａ−５’）、等が挙げられる。なお、本発明の水分散性重袋は、全体が水に分散または溶解する素材から構成されていればよく、例えば、底部の貼り合わせを、水分散性紙からなる補強紙あるいは化粧紙により補強することができる。また、底部の貼り合わせを、水溶性の糸で縫着して補強することもできる。 The present invention relates to a water dispersible heavy bag which is made of water dispersible paper and in which a body sticking portion and a bottom portion are sealed with a water soluble or water dispersible adhesive. The shape of the heavy bag is not particularly limited as long as the water-dispersible paper is not sewn with a thread by sewing, but may be bonded and sealed with a water-soluble or water-dispersible adhesive. For example, a foldless open bottom bag (A-1), a foldless open fold bag (A-3), a fold open bottom bag (A-2), a fold opening as defined in JIS Z 0102 A type folding bag (A-4), a folded open double folding bag (A-5), a folded folded reinforcing sheet with paper (A-5 '), and the like can be mentioned. The water-dispersible heavy bag of the present invention may be made of a material which is entirely dispersed or dissolved in water. For example, the bonding of the bottom is reinforced by a reinforcing paper or a decorative paper made of water-dispersible paper. can do. In addition, the bonding of the bottom can be reinforced by sewing with a water-soluble thread.
「水分散性紙」
本発明において、水分散性紙とは、フロック状水分散時間が３０秒以内であり、かつ繊維状水分散時間が６０秒以内である紙を意味する。フロック状水分散時間とは、脱イオン水３００ｍｌを３００ｍｌビーカーに入れ、スターラーで６５０ｒｐｍに攪拌しながら、３ｃｍ角の試験片を投入し、試験片が２つ以上に千切れる時間である。また、繊維状水分散時間とは、試験片が完全に繊維一本一本にほぐれる時間である。
"Water-dispersible paper"
In the present invention, water-dispersible paper means paper having a flocculated water dispersion time of 30 seconds or less and a fibrous water dispersion time of 60 seconds or less. The floc-like water dispersion time is a time in which 300 ml of deionized water is put in a 300 ml beaker, and a test piece of 3 cm square is charged and stirred into two or more pieces while stirring at 650 rpm with a stirrer. Further, the fibrous water dispersion time is the time when the test piece is completely loosened into fibers one by one.
水分散性紙としては、例えば、特許第６０１０４６１号公報に記載の精製パルプを全パルプの１５重量％以上９５重量％以下含有する水分散紙、これに水溶性重合体を含浸または塗工した水分散紙、特許第４９１７２７４号公報に記載の水分散性繊維と水溶性繊維であるカルボキシアルキルセルロース塩とを含む水剥離性塗工紙用基紙等を使用することができる。 As the water-dispersible paper, for example, a water-dispersed paper containing 15% by weight or more and 95% by weight or less of the purified pulp described in Japanese Patent No. 6010461, and water containing the water-soluble polymer impregnated or coated thereon It is possible to use a dispersion paper, a base paper for water releasable coated paper comprising a water dispersible fiber described in Japanese Patent No. 4917274 and a carboxyalkyl cellulose salt which is a water-soluble fiber.
また、水分散性紙として、製紙用繊維と、水分散性や強度向上を目的として添加される水溶性高分子とを含むものを適宜用いることができる。水溶性高分子は、水分散性紙に対して２重量％以上３０重量％以下添加することが、水分散性と強度とのバランスの点から好ましい。
下記で詳述するように、本発明の水分散性重袋は、骨材等の粉粒体を含有するコンクリートスラリーやセメントスラリー中に重袋ごと添加することができる。この際、水分散性重袋は、骨材等の粉粒体の物理的抵抗を受けて分散が抑制される。また、骨材等の粉粒体が含有するカルシウムイオンやマグネシウムイオンにより、水溶性高分子が溶け難くなり、水分散性が低下する。
Further, as the water-dispersible paper, a paper containing papermaking fibers and a water-soluble polymer to be added for the purpose of improving the water dispersibility and strength can be suitably used. It is preferable to add 2% by weight or more and 30% by weight or less of the water-soluble polymer to the water-dispersible paper from the viewpoint of the balance between water dispersibility and strength.
As described in detail below, the water-dispersible heavy bag of the present invention can be added to a concrete slurry or cement slurry containing powder particles such as aggregate together with the heavy bag. Under the present circumstances, a water-dispersible heavy bag receives the physical resistance of granular materials, such as an aggregate, and dispersion | distribution is suppressed. In addition, the water-soluble polymer becomes difficult to dissolve due to calcium ions or magnesium ions contained in powder particles such as aggregate, and the water dispersibility is reduced.
このようなスラリー中の骨材等の粉粒体の粘性抵抗による水分散性の低下を避けるために、水分散性紙に添加する水溶性高分子は、コンクリートスラリー等を増粘させない低粘度のものを用いることが好ましい。好ましい水溶性高分子として、カルボキシメチルセルロース塩等のカルボキシアルキルセルロースのアルカリ金属塩、冷水可溶性ポリビニルアルコールが挙げられる。冷水可溶性ポリビニルアルコールとは、３０℃以下の水に溶解するもので、ケン化度が８９％以下の部分ケン化ポリビニルアルコール、分子内にスルホン酸基やカルボン酸基を導入した変性ポリビニルアルコール等を挙げることができる。これらの水溶性高分子は、２０℃における４重量％水溶液の粘度が、１ｍＰａ・ｓ以上２５ｍＰａ・ｓ以下のものが好ましい。この粘度が１ｍＰａ・ｓ未満では強度向上効果が乏しく、この粘度が２５ｍＰａ・ｓを超えるものは水やコンクリートスラリーへの分散性が低下して好ましくない。 The water-soluble polymer added to the water-dispersible paper has a low viscosity that does not cause thickening of the concrete slurry etc. in order to avoid the decrease of the water dispersibility due to the viscosity resistance of the powder particles such as aggregates in the slurry. It is preferable to use one. Preferred water-soluble polymers include alkali metal salts of carboxyalkylcelluloses such as carboxymethylcellulose salts, cold water soluble polyvinyl alcohol. Cold water-soluble polyvinyl alcohol is one that dissolves in water at 30 ° C or less, partially saponified polyvinyl alcohol with a degree of saponification of 89% or less, and modified polyvinyl alcohol with sulfonic acid groups and carboxylic acid groups introduced in the molecule It can be mentioned. The water-soluble polymer preferably has a viscosity of 1 mPa · s or more and 25 mPa · s or less at 20 ° C. If the viscosity is less than 1 mPa · s, the effect of improving the strength is poor, and if the viscosity is more than 25 mPa · s, the dispersibility in water and concrete slurry is unfavorably reduced.
水分散性重袋に用いる水分散性紙の坪量は５０ｇ／ｍ２以上１２０ｇ／ｍ２以下の範囲であり、ＪＩＳ Ｐ３４０１に規定されるクラフト紙１種〜４種の坪量に適合したものが好ましい。比引張強さは、縦方向４５Ｎ・ｍ／ｇ以上、横方向１５Ｎ・ｍ／ｇ以上であることが好ましく、縦方向６０Ｎ・ｍ／ｇ以上、横方向２０Ｎ・ｍ／ｇ以上であることがより好ましい。比引裂強さは、縦方向８ｍＮ・ｍ２／ｇ以上、横方向９ｍＮ・ｍ２／ｇ以上であることが好ましく、縦方向１０ｍＮ・ｍ２／ｇ以上、横方向１１ｍＮ・ｍ２／ｇ以上であることがより好ましい。 The basis weight of the water dispersible paper used for the water dispersible heavy bag is in the range of 50 g / m 2 or more and 120 g / m 2 or less, which conforms to one to four basis weights of kraft paper specified in JIS P3401 Is preferred. The specific tensile strength is preferably 45 N · m / g or more in the longitudinal direction and 15 N · m / g or more in the transverse direction, and 60 N · m / g or more in the longitudinal direction and 20 N · m / g or more in the transverse direction More preferable. The ratio tear strength, machine direction 8mN · m 2 / g or more, preferably lateral 9mN · m 2 / g or more, longitudinally 10mN · m 2 / g or more, lateral 11mN · m 2 / g or more It is more preferable that
水分散性は、フロック状水分散時間が３０秒以内であり、かつ繊維状水分散時間が６０秒以内であることが好ましく、フロック状水分散時間が２０秒以内であり、かつ繊維状水分散時間が３０秒以内であることがより好ましく、フロック状水分散時間が１０秒以内であり、かつ繊維状水分散時間が２０秒以内であることが更に好ましい。 The water dispersibility is preferably such that the flock-like water dispersion time is within 30 seconds and the fibrous water dispersion time is within 60 seconds, the flock-like water dispersion time is within 20 seconds, and the fibrous water dispersion is The time is more preferably 30 seconds or less, the flocculated water dispersion time is 10 seconds or less, and the fibrous water dispersion time is more preferably 20 seconds or less.
水分散性紙の紙面ｐＨは、６．０以上１１．０以下であることが好ましく、６．２以上１０．０以下であることがより好ましい。紙面ｐＨをこの範囲に調整することで、紙中の酸、強アルカリが内容物に悪影響を及ぼすことを防止することができる。
紙面ｐＨを調整する方法は、特に限定されるものではなく、例えば、中性領域の材料を主成分として水分散性紙を抄紙する。あるいは、アルカリ性、酸性の水分散性紙を、酸性物質、アルカリ性物質で中和して製造することができる。
The paper surface pH of the water-dispersible paper is preferably 6.0 or more and 11.0 or less, and more preferably 6.2 or more and 10.0 or less. By adjusting the paper surface pH to this range, it is possible to prevent the acid and strong alkali in the paper from adversely affecting the contents.
The method of adjusting the paper surface pH is not particularly limited, and, for example, water dispersible paper is made with the material of the neutral region as the main component. Alternatively, alkaline, acidic water-dispersible paper can be produced by neutralization with an acidic substance or alkaline substance.
＜水分散性紙の付加加工＞
本発明の水分散性紙は、平滑性を向上させて印刷用途等に供するため、マシンカレンダー、スーパーカレンダー、ソフトニップカレンダー等の一般的な製紙用カレンダーを用いてカレンダー加工を施すことができる。
また、湿潤時の強度や透気抵抗度を高めるため、水分散性紙に水溶性樹脂フィルムをラミネート加工してもよい。水溶性樹脂フィルムとしては、水溶性ポリビニルアルコール、ポリアルキレンオキサイド、ポリアルキレンオキサイド共重合物等の水溶性樹脂をフィルム化したものを使用することができる。ラミネート加工は、可溶性袋状物とした際に、最外層または最内層となる面に施すことが好ましい。最外層にラミネート層を有する可溶性袋状物は、外部からの湿度の影響を抑えられるため、保管性が向上する。一方、最内層にラミネート層を有する可溶性袋状物は、最内層以外にラミネート層を有する可溶性袋状物と比較して、袋ごと投入した際の水分散性に優れる。
<Additional processing of water dispersible paper>
The water-dispersible paper of the present invention can be calendered using a general papermaking calender such as a machine calender, a super calender, a soft nip calender, etc. in order to improve the smoothness and use it for printing applications and the like.
In addition, a water-soluble resin film may be laminated on a water-dispersible paper in order to increase the wet strength and the air resistance. As the water-soluble resin film, a film obtained by forming a water-soluble resin such as a water-soluble polyvinyl alcohol, a polyalkylene oxide, or a polyalkylene oxide copolymer can be used. It is preferable to apply lamination to the surface which becomes the outermost layer or the innermost layer when it is made into a soluble bag-like product. The soluble bag-like product having the laminate layer as the outermost layer can reduce the influence of external humidity, thereby improving the storage stability. On the other hand, a soluble bag-like product having a laminate layer in the innermost layer is superior to the soluble bag-like product having a laminate layer in addition to the innermost layer, in water dispersibility when charged as a whole.
「水溶性または水分散性接着剤」
本発明の水分散性重袋は、水溶性または水分散性接着剤で封止されることを特徴とする。水溶性または水分散性接着剤としては、酢酸ビニルエマルジョン系接着剤、アクリルエマルジョン系接着剤、ポリビニルアルコール系接着剤、でんぷんのり、セルロース系接着剤、ポリエステルエマルジョン系接着剤、水溶性ウレタン系接着剤等を用いることができる。ここで、本発明の水分散性重袋は、水分散性紙からなるため、水分量が多い接着剤を塗布すると、接着剤に含まれる水により水分散性紙がふやけてしまう。また、水溶性接着剤には水と接触した際に迅速に溶解・分散することが求められる。上記接着剤の中で、高濃度で塗布することができ、乾燥後の水分散性に優れているため、酢酸ビニルエマルジョン系接着剤を好適に利用することができる。
また、吸湿による強度低下を抑制するため、水溶性樹脂フィルムをラミネート加工してもよい。水溶性樹脂フィルムとしては、ポリビニルアルコール、ポリアルキレンオキサイド、ポリアルキレンオキサイド共重合物等の水溶性樹脂をフィルム化したものを使用すればよい。水溶性樹脂フィルム層は重袋の外側になるように設けることが好ましい。
"Water-soluble or water-dispersible adhesive"
The water-dispersible heavy bag of the present invention is characterized by being sealed with a water-soluble or water-dispersible adhesive. As water-soluble or water-dispersible adhesives, vinyl acetate emulsion adhesives, acrylic emulsion adhesives, polyvinyl alcohol adhesives, starch paste, cellulose adhesives, polyester emulsion adhesives, water-soluble urethane adhesives Etc. can be used. Here, since the water-dispersible heavy bag of the present invention is made of water-dispersible paper, when an adhesive having a large amount of water is applied, the water-dispersible paper is discolored by the water contained in the adhesive. In addition, water-soluble adhesives are required to be rapidly dissolved and dispersed when in contact with water. Among the above-mentioned adhesives, since it can be applied at a high concentration and is excellent in water dispersibility after drying, a vinyl acetate emulsion-based adhesive can be suitably used.
Moreover, in order to suppress the strength reduction due to moisture absorption, the water-soluble resin film may be laminated. As the water-soluble resin film, a film obtained by forming a water-soluble resin such as polyvinyl alcohol, polyalkylene oxide, or polyalkylene oxide copolymer may be used. The water-soluble resin film layer is preferably provided on the outside of the heavy bag.
本発明の水分散性重袋は、セメント、米、小麦粉、飼料等の粉粒体からなる重量物を特に制限することなく収容することができるが、特に、コンクリート用粉粒体の収容に適している。ここで、本明細書においてコンクリート用粉粒体とは、セメントペースト、モルタル、コンクリート等を水和硬化させてなる水硬性硬化物に配合される粉粒体であれば特に制限されず、ポルトランドセメント、高炉セメント、混合セメント、マグネシアセメント等の水硬性結着剤（セメント）、フライアッシュ、膨張剤、高炉スラグ微粉末、シリカフューム、石灰石微粉末等の混和材、ＡＥ剤、減水剤、ＡＥ減水剤、高性能ＡＥ減水剤、流動化剤、中性化抑制剤、遅延剤、発泡剤、防水剤、着色剤、耐寒剤、早強剤、増粘剤等の化学混和剤、砂利、砂、海砂、砕石、砕砂、各種スラグ骨材、重量骨材、軽量骨材、再生骨材等の細骨材等を挙げることができる。 The water-dispersible heavy bag of the present invention can be accommodated without particular limitation on heavy materials consisting of granular materials such as cement, rice, flour, feed and the like, but is particularly suitable for containing granular materials for concrete. ing. Here, in the present specification, the granular material for concrete is not particularly limited as long as it is a granular material to be mixed with a hydraulically hardened material obtained by hydration and curing cement paste, mortar, concrete or the like, and portland cement , Binder cement, mixed cement, hydraulic binder (cement) such as magnesia cement, fly ash, expansive agent, blast furnace slag fine powder, silica fume, limestone fine powder etc, admixture, AE agent, water reducing agent, AE water reducing agent , High-performance AE water reducing agent, fluidizing agent, carbonation inhibitor, retarder, blowing agent, waterproofing agent, coloring agent, antifreeze agent, early strengthening agent, chemical admixtures such as thickener, gravel, sand, sea Sand, crushed stone, crushed sand, various slag aggregates, heavy aggregate, lightweight aggregate, fine aggregate such as recycled aggregate, etc. can be mentioned.
セメントは、水和反応により硬化し、強固な水硬性組成物（モルタル、コンクリート等）となるため、建築土木材料等として広く用いられている。セメントは、混和材、化学混和剤、骨材等とともに混練されてスラリーとされるが、配合するコンクリート用粉粒体の１以上を本発明の水分散性重袋に収容したままの状態で、すなわち、水分散性重袋ごとミキサに投入して混練することができる。本発明の水分散性重袋は、水と接触して分散、溶解するため、内容物は速やかに撹拌されて、均一なスラリーを得ることができる。また、水分散性重袋は、速やかに分散、溶解するため、スラリー中で水分散性重袋の一部が原型を留めることはない。このスラリーが硬化した水硬性硬化物には、パルプ、水溶性接着剤等の重袋由来物が混入するが、水硬性硬化物全量に対する重袋由来物の量は僅かであるため、これらが水硬性硬化物に悪影響を及ぼすことはない。さらに、セルロース繊維は、水硬性硬化物の強度向上効果が知られているが、セルロース繊維であるパルプにより、水硬性硬化物の強度向上が期待できる。 Cement is hardened by hydration reaction and becomes a strong hydraulic composition (mortar, concrete, etc.), so it is widely used as a construction civil engineering material etc. The cement is kneaded with an admixture, a chemical admixture, an aggregate, etc. to form a slurry, with one or more of the powder and concrete bodies to be blended being contained in the water-dispersible heavy bag of the present invention, That is, the water dispersible heavy bag can be introduced into the mixer for kneading. Since the water-dispersible heavy bag of the present invention is dispersed and dissolved in contact with water, the contents can be rapidly stirred to obtain a uniform slurry. In addition, since the water-dispersible heavy bag disperses and dissolves quickly, a part of the water-dispersible heavy bag does not retain its original shape in the slurry. The hydraulic cured product obtained by curing the slurry contains heavy bag-derived products such as pulp and water-soluble adhesive, but since the amount of the heavy bag-derived product relative to the total amount of the hydraulic cured product is small, these are water There is no adverse effect on the cured product. Furthermore, although the cellulose fiber is known to have the effect of improving the strength of a hydraulically cured product, it is expected that the strength of the hydraulically cured product can be improved by pulp which is a cellulose fiber.
ここで、一般的なコンクリートは、１ｍ３当たりポルトランドセメント３００ｋｇ、細骨材８５０ｋｇ、粗骨材１０００ｋｇ、水１６０ｋｇ程度である。そして、セメント、細骨材の一部の代替として混和材、必要に応じて少量の化学混和剤が配合される。そして、水硬性組成物を製造するためのスラリーの組成は、硬化物１ｍ３当たりで計算されることが一般的であり、また、スラリーも１ｍ３単位で調製されることが一般的である。
本発明の水分散性重袋は、強度に優れるため、１５ｋｇ以上６０ｋｇ程度の内容物を収容して取り扱うことができる。本発明の水分散性重袋に、コンクリートを１ｍ３製造する際に、１５ｋｇ以上６０ｋｇ程度配合されるコンクリート用粉粒体を収容すると、袋のまま１袋、２袋とミキサに投入することができ、コンクリート用粉粒体の重さを測定する必要がないため、スラリー調製作業が容易となる。したがって、本発明の水分散性重袋は、混和材、化学混和剤を収容することが好ましく、混和材を収容することがより好ましく、フライアッシュがさらに好ましい。そして、フライアッシュとして、性能が安定している未燃カーボン含有率が１重量％以下である加熱改質フライアッシュが好ましい。
Here, typical concrete is about 300 kg of Portland cement, 850 kg of fine aggregate, 1000 kg of coarse aggregate and 160 kg of water per 1 m 3 . Then, as a substitute for cement and a part of fine aggregate, an admixture, and optionally a small amount of a chemical admixture are blended. The composition of the slurry for the manufacture of a hydraulic composition is to be calculated with a cured product 1 m 3 per are common, also, the slurry also is generally prepared in 1 m 3 units.
Since the water-dispersible heavy bag of the present invention is excellent in strength, it can contain and handle contents of about 15 kg to about 60 kg. When 1 m 3 of concrete is manufactured in the water-dispersible heavy bag of the present invention, if the powder granules for concrete to be mixed at 15 kg or more and 60 kg or so are accommodated, the bags can be thrown into 1 bag, 2 bags and mixer as they are Since it is not necessary to measure the weight of the powder material for concrete, the slurry preparation operation becomes easy. Accordingly, the water-dispersible heavy bag of the present invention preferably contains an admixture and a chemical admixture, more preferably contains an admixture, and more preferably fly ash. And as a fly ash, the heat-reformed fly ash whose unburned carbon content rate whose performance is stable is 1 weight% or less is preferable.
以下に実施例を挙げて本発明を具体的に説明する。しかし、本発明は、これらに限定されるものではない。また、実施例において用いた評価方法を次に示す。これは各実施例において共通して用いた。 The present invention will be specifically described by way of examples. However, the present invention is not limited to these. Moreover, the evaluation method used in the Example is shown next. This is commonly used in each example.
１）保水度
ＪＡＰＡＮ ＴＡＰＰＩ Ｎｏ．２６に準じて測定した。
２）水分散性
３ｃｍ角の試験片５枚を用意した。次に３００ｍｌビーカーに脱イオン水３００ｍｌを入れてスターラーで６５０ｒｐｍに攪拌しながら上記試験片１枚を投入した。試験片が２つ以上に千切れる時間と試験片が完全に繊維一本一本にほぐれる時間をストップウオッチで測定し、５回の測定の平均値をそれぞれフロック状水分散時間、繊維状水分散時間とした。
1) Water retention degree JAPAN TAPPI No. It measured according to 26.
2) Water dispersibility Five test pieces of 3 cm square were prepared. Next, 300 ml of deionized water was placed in a 300 ml beaker, and one piece of the above test piece was charged while stirring at 650 rpm with a stirrer. Measure the time when the test piece breaks into two or more and the time when the test piece completely loosens into fibers with a stopwatch, and the average value of 5 measurements is the flocculated water dispersion time, the fibrous water dispersion time And
３）坪量
ＪＩＳ Ｐ８１２４に準じて測定した。
４）比引張強さ
ＪＩＳ Ｐ８１１３に準じて測定した。
５）比引裂強さ
ＪＩＳ Ｐ８１１６に準じて測定した。
3) Basis Weight Measured according to JIS P8124.
4) Specific tensile strength Measured according to JIS P8113.
5) Specific tear strength Measured according to JIS P8116.
（実施例１）
精製パルプとして針葉樹マーセル化パルプ（αセルロース含有率 ９７．５％、４５０ｍｌＣＳＦにおける保水度１３８％）６０重量％と、無精製パルプとして針葉樹晒しクラフトパルプ（以下ＮＢＫＰ、αセルロース含有率 ８５．６％）４０重量％とを配合し、濾水度６５０ｍｌＣＳＦに混合叩解した抄紙用原料を、円網ヤンキードライヤー式抄紙機で抄紙・乾燥後、サイズプレス式塗工機で低粘度のカルボキシメチルセルロースナトリウム塩（以下ＣＭＣ−Ｎａ、商品名サンローズ、日本製紙ケミカル社製品、４重量％水溶液の粘度が１５ｍＰａ・ｓ）の水溶液（濃度５質量％）を含浸塗工して、坪量６０ｇ／ｍ２の水分散性紙を製造した。なお、ＣＭＣ−Ｎａの含有量は３ｇ／ｍ２であった。
この水分散性紙は、縦方向の比引張強さが６７．２Ｎ・ｍ／ｇ、縦方向の比引裂強さが１５．１ｍＮ・ｍ２／ｇ、フロック状水分散時間が２．５秒、繊維状水分散時間が７秒であり、強度と迅速な水分散性を兼備するものであった。
Example 1
Softwood mercerized pulp as purified pulp (α cellulose content 97.5%, water retention 138% in 450 ml CSF) 60% by weight, softwood bleached as unrefined pulp kraft pulp (hereinafter NBKP, α cellulose content 85.6%) The raw material for papermaking mixed with 40% by weight and mixed and refined to a freeness of 650 ml CSF is made into paper by a circular screen Yankee dryer type paper machine and dried, then carboxymethyl cellulose sodium salt of low viscosity by size press type coating machine CMC-Na, trade name Sunrose, Nippon Paper Chemicals Co., Ltd. product, 4 wt% aqueous solution with a viscosity of 15 mPa · s) impregnated and coated with an aqueous solution (concentration 5 wt%) and having a basis weight of 60 g / m 2 Paper was produced. In addition, content of CMC-Na was 3 g / m < 2 >.
This water-dispersible paper has a specific tensile strength of 67.2 N · m / g in the longitudinal direction, a specific tear strength of 15.1 mN · m 2 / g in the longitudinal direction, and a flocculated water dispersion time of 2.5 seconds. The fibrous water dispersion time was 7 seconds, and the strength was combined with the rapid water dispersibility.
この水分散性紙の巻取りを、２枚重ねて自動製袋機に導入した。酢酸ビニルエマルジョン系接着剤（商品名：セビアン−Ａ ２２０９０、ダイセルファインケム社製）を用い、胴貼り部と底部を封止して、横４５０ｍｍ、縦７７０ｍｍの２重構造の両底糊貼のひだなし開口式底ばり袋の形状の水分散性重袋を製造した。 Two sheets of the water-dispersible paper winding were stacked and introduced into an automatic bag making machine. Using a vinyl acetate emulsion adhesive (trade name: Sebian-A 22090, manufactured by Daicel Finechem Co., Ltd.), the body attachment portion and the bottom portion are sealed to form a double-layer double-sided paste of 450 mm wide and 770 mm long. A water dispersible heavy bag in the form of an open bottom bag was produced.
本実施例による水分散性重袋にフライアッシュを収容し、袋ごとモルタルスラリーに投入して硬化させ、硬化物の物性を測定する試験を以下の手順で実施した。
セメントは普通ポルトランドセメントを使用し、フライアッシュは加熱改質フライアッシュ（以下、商品名：ＣｆＦＡ、日本製紙社製、ＪＩＳ Ａ６２０ｌ コンクリート用フライアッシュ規格II種準拠品）を用いた。また、細骨材として掛川産陸砂を用いた。
モルタルはＪＩＳ Ａ６２０１（コンクリート用フライアッシュ）に準じて、水粉体比５０％として、ＣｆＦＡをセメント質量に対して２５％を内割置換した。また、基準品として、ＣｆＦＡ無配合のものを調合した。各調合品の配合を表１に示す。
Fly ash was accommodated in the water-dispersible heavy bag according to the present example, and the bag and the bag were charged into a mortar slurry to be hardened, and a test of measuring physical properties of the hardened material was carried out according to the following procedure.
The cement used ordinary portland cement, and the fly ash used a heat-reformed fly ash (hereinafter, trade name: CfFA, manufactured by Nippon Paper Industries Co., Ltd., a JIS A 620 l fly ash standard type II concrete product). In addition, Kakegawa land sand was used as fine aggregate.
According to JIS A6201 (fly ash for concrete), mortar was internally substituted for 25% of CfFA with respect to the cement mass with a water powder ratio of 50%. Moreover, the thing of CfFA non-blending was prepared as a reference goods. The composition of each preparation is shown in Table 1.
各骨材は、ＪＩＳ Ｒ５２０１（セメントの物理試験方法）に準じて容量２００リットルのモルタルミキサを用いて所定の時間練り混ぜ、４０×４０×１６０ｍｍの型枠で成形後、１日間湿空養生を行い、成形後２４時間および２８日で圧縮強度試験を行った。
ＣｆＦＡ添加品は、ＣｆＦＡを収容した水分散性重袋を開封せずに重袋ごとミキサに投入して練り混ぜた。
Each aggregate is mixed and mixed for a predetermined time using a mortar mixer having a volume of 200 liters according to JIS R5201 (physical test method for cement), molded with a 40 × 40 × 160 mm mold, and moisturized for 1 day The compression strength test was carried out 24 hours and 28 days after molding.
The CfFA additive was introduced into the mixer together with the heavy sack and mixed without mixing the water dispersible heavy bag containing CfFA.
ＣｆＦＡ添加品は、所定の練り混ぜ時間内に水分散性重袋が崩壊してモルタルスラリー中へ均一に分散し、基準品と同じように型枠内に打設して試験体を成形することができた。ＣｆＦＡ添加品の試験体圧縮強度は、基準品と同等であり、ＣｆＦＡを収容した水分散性重袋添加による強度上の欠点は認められなかった。 In the CfFA additive, the water dispersible heavy bag is disintegrated and uniformly dispersed in the mortar slurry within a predetermined mixing time, and cast in the formwork in the same manner as the reference product to form a test body. It was possible. The compressive strength of the test body of the CfFA-added product was equivalent to that of the standard product, and no strength defect was observed due to the addition of the water dispersible bag containing CfFA.
（実施例２）
精製パルプとして針葉樹マーセル化パルプ（αセルロース含有率 ９７．５％、４５０ｍｌＣＳＦにおける保水度１３８％）６０重量％と、無精製パルプとして針葉樹晒しクラフトパルプ（以下ＮＢＫＰ、αセルロース含有率 ８５．６％）４０重量％とを配合し、濾水度６５０ｍｌＣＳＦに混合叩解した抄紙用原料を円網ヤンキードライヤー式抄紙機で抄紙・乾燥後、サイズプレス式塗工機で低重合度のスルホン酸基変性ポリビニルアルコール（商品名ゴーセネックス、日本合成化学工業社製品）の水溶液（濃度５質量％）を含浸塗工して、坪量６０ｇ／ｍ２の水分散性紙を製造した。なお、スルホン酸基変性ＰＶＡの含有量は３ｇ／ｍ２であった。
この水分散性紙は、縦方向の比引張強さが５９．０Ｎ・ｍ／ｇ、縦方向の比引裂強さが１５．２ｍＮ・ｍ２／ｇ、フロック状水分散時間が３．５秒、繊維状水分散時間が２９秒であり、強度と迅速な水分散性を兼備するものであった。
(Example 2)
Softwood mercerized pulp as purified pulp (α cellulose content 97.5%, water retention 138% in 450 ml CSF) 60% by weight, softwood bleached as unrefined pulp kraft pulp (hereinafter NBKP, α cellulose content 85.6%) The raw material for papermaking mixed with 40% by weight and mixed and refined to a freeness of 650 ml CSF is made into paper by a circular screen Yanky dryer type paper machine and dried, and then sulfonic acid group modified polyvinyl alcohol with low degree of polymerization by size press type coater. An aqueous solution (concentration 5% by mass) of (Gosenex trade name, product of Nippon Synthetic Chemical Industry Co., Ltd.) was impregnated and coated to produce a water-dispersible paper having a basis weight of 60 g / m 2 . The content of sulfonic acid group-modified PVA was 3 g / m 2 .
This water-dispersible paper has a specific tensile strength of 59.0 N · m / g in the longitudinal direction, a specific tear strength of 15.2 mN · m 2 / g in the longitudinal direction, and a flocculated water dispersion time of 3.5 seconds. The fibrous water dispersion time was 29 seconds, and the strength was combined with the rapid water dispersibility.
この水分散性紙を用いた以外は、実施例１と同様にしてＣｆＦＡを収容した水分散性袋を製造し、モルタルスラリーに投入・固化させ試験体を作製した。 A water-dispersible bag containing CfFA was produced in the same manner as in Example 1 except that this water-dispersible paper was used, and was inserted into mortar slurry and solidified to prepare a test body.
ＣｆＦＡ添加品は、所定の練り混ぜ時間内に水分散性重袋が崩壊してモルタルスラリー中へ均一に分散し、基準品と同じように型枠内に打設して試験体を成形することができた。ＣｆＦＡ添加品の試験体圧縮強度は、基準品と同等であり、ＣｆＦＡを収容した水分散性重袋添加による強度上の欠点は認められなかった。 In the CfFA additive, the water dispersible heavy bag is disintegrated and uniformly dispersed in the mortar slurry within a predetermined mixing time, and cast in the formwork in the same manner as the reference product to form a test body. It was possible. The compressive strength of the test body of the CfFA-added product was equivalent to that of the standard product, and no strength defect was observed due to the addition of the water dispersible bag containing CfFA.
（実施例３）
針葉樹晒クラフトパルプをカナダろ水度６００ｍｌＣＳＦまで叩解したものを８０重量部と、繊維状カルボキシメチルセルロース（エーテル化度０．４３）２０重量部を配合した抄紙用原料を調成し、円網ヤンキードライヤー式抄紙機を用いて坪量５５ｇ／ｍ２で水分散性を有さない基紙を製造した。
基紙に、７重量％濃度の炭酸ナトリウム水溶液を塗工量が中和当量の１．５倍以上となるようにサイズプレスを用いて含浸塗工・乾燥させ、アルカリ化剤層を基紙に含有させ、繊維状カルボキシメチルセルロースをＮａ塩とすることにより、坪量６０ｇ／ｍ２の水分散性紙を製造した。
この水分散性紙は、縦方向の比引張強さが６６．７Ｎ・ｍ／ｇ、縦方向の比引裂強さが８．１ｍＮ・ｍ２／ｇ、フロック状水分散時間が４．７秒、繊維状水分散時間が１８秒であり、強度と迅速な水分散性を兼備するものであった。
(Example 3)
Preparation of a papermaking material containing 80 parts by weight of softwood bleached kraft pulp beaten to a Canadian freeness of 600 ml CSF and 20 parts by weight of fibrous carboxymethyl cellulose (etherification degree 0.43) A base paper having a basis weight of 55 g / m 2 and no water dispersibility was manufactured using a model paper machine.
A 7% by weight aqueous solution of sodium carbonate is impregnated onto the base paper using a size press so that the coating amount is 1.5 times or more of the neutralization equivalent, it is coated by application and dried, and the alkali agent layer is used as the base paper. A water dispersible paper having a basis weight of 60 g / m 2 was produced by incorporating it and converting fibrous carboxymethylcellulose into a Na salt.
This water-dispersible paper has a specific tensile strength of 66.7 N · m / g in the longitudinal direction, a specific tear strength of 8.1 mN · m 2 / g in the longitudinal direction, and a flocculated water dispersion time of 4.7 seconds. The fibrous water dispersion time was 18 seconds, which combines strength with rapid water dispersibility.
この水分散性紙を用いた以外は、実施例１と同様にしてＣｆＦＡを収容した水分散性袋を製造し、モルタルスラリーに投入・固化させ試験体を作製した。 A water-dispersible bag containing CfFA was produced in the same manner as in Example 1 except that this water-dispersible paper was used, and was inserted into mortar slurry and solidified to prepare a test body.
ＣｆＦＡ添加品は、所定の練り混ぜ時間内に水分散性重袋が崩壊してモルタルスラリー中へ均一に分散し、基準品と同じように型枠内に打設して試験体を成形することができた。ＣｆＦＡ添加品の試験体圧縮強度は、基準品と同等であり、ＣｆＦＡを収容した水分散性重袋添加による強度上の欠点は認められなかった。 In the CfFA additive, the water dispersible heavy bag is disintegrated and uniformly dispersed in the mortar slurry within a predetermined mixing time, and cast in the formwork in the same manner as the reference product to form a test body. It was possible. The compressive strength of the test body of the CfFA-added product was equivalent to that of the standard product, and no strength defect was observed due to the addition of the water dispersible bag containing CfFA.
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62193955A (en) * | 1985-04-23 | 1987-08-26 | スン ドウオ−シエン | Kraft packaging bag |
| JPH0585565A (en) * | 1991-09-26 | 1993-04-06 | Kikusui Kagaku Kogyo Kk | Product filled in bag using hydraulic and/or water dispersing binder |
| JPH0852730A (en) * | 1994-08-11 | 1996-02-27 | Taisei Corp | Manufacture of high fluidity concrete |
| JPH10258845A (en) * | 1997-03-19 | 1998-09-29 | Kanpai:Kk | Water dispersion cement bag |
| JP2000006986A (en) * | 1998-06-26 | 2000-01-11 | Seiou:Kk | Water-soluble paper bag and its manufacture |
| JP2016053235A (en) * | 2010-07-28 | 2016-04-14 | 日本製紙パピリア株式会社 | Water-dispersible paper |
| JP2017171513A (en) * | 2016-03-22 | 2017-09-28 | 太平洋セメント株式会社 | Concrete for pavement |
-
2017
- 2017-10-03 JP JP2017193201A patent/JP7262920B2/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62193955A (en) * | 1985-04-23 | 1987-08-26 | スン ドウオ−シエン | Kraft packaging bag |
| JPH0585565A (en) * | 1991-09-26 | 1993-04-06 | Kikusui Kagaku Kogyo Kk | Product filled in bag using hydraulic and/or water dispersing binder |
| JPH0852730A (en) * | 1994-08-11 | 1996-02-27 | Taisei Corp | Manufacture of high fluidity concrete |
| JPH10258845A (en) * | 1997-03-19 | 1998-09-29 | Kanpai:Kk | Water dispersion cement bag |
| JP2000006986A (en) * | 1998-06-26 | 2000-01-11 | Seiou:Kk | Water-soluble paper bag and its manufacture |
| JP2016053235A (en) * | 2010-07-28 | 2016-04-14 | 日本製紙パピリア株式会社 | Water-dispersible paper |
| JP2017171513A (en) * | 2016-03-22 | 2017-09-28 | 太平洋セメント株式会社 | Concrete for pavement |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021151886A (en) * | 2020-03-24 | 2021-09-30 | 住友大阪セメント株式会社 | Premix mortar package, and mortar composition construction method |
| JP7415274B2 (en) | 2020-03-24 | 2024-01-17 | 住友大阪セメント株式会社 | Premix mortar packaging and construction method for mortar composition |
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