JP7442218B2 - Method for producing rice-containing resin composition and twin-screw kneading device - Google Patents
Method for producing rice-containing resin composition and twin-screw kneading device Download PDFInfo
- Publication number
- JP7442218B2 JP7442218B2 JP2022147029A JP2022147029A JP7442218B2 JP 7442218 B2 JP7442218 B2 JP 7442218B2 JP 2022147029 A JP2022147029 A JP 2022147029A JP 2022147029 A JP2022147029 A JP 2022147029A JP 7442218 B2 JP7442218 B2 JP 7442218B2
- Authority
- JP
- Japan
- Prior art keywords
- section
- rotating member
- rice
- rotating
- screw
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 235000007164 Oryza sativa Nutrition 0.000 title claims description 90
- 235000009566 rice Nutrition 0.000 title claims description 90
- 239000011342 resin composition Substances 0.000 title claims description 50
- 238000004898 kneading Methods 0.000 title claims description 42
- 238000004519 manufacturing process Methods 0.000 title claims description 37
- 240000007594 Oryza sativa Species 0.000 title 1
- 241000209094 Oryza Species 0.000 claims description 89
- 239000000463 material Substances 0.000 claims description 81
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 48
- 235000013312 flour Nutrition 0.000 claims description 45
- 238000007872 degassing Methods 0.000 claims description 25
- 229920005989 resin Polymers 0.000 claims description 23
- 239000011347 resin Substances 0.000 claims description 23
- 230000018044 dehydration Effects 0.000 claims description 14
- 238000006297 dehydration reaction Methods 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 8
- 229920005672 polyolefin resin Polymers 0.000 claims description 8
- 229920006395 saturated elastomer Polymers 0.000 claims description 6
- 229920002678 cellulose Polymers 0.000 claims 1
- 239000001913 cellulose Substances 0.000 claims 1
- 239000002121 nanofiber Substances 0.000 claims 1
- 238000003860 storage Methods 0.000 description 37
- 230000004308 accommodation Effects 0.000 description 29
- 239000007788 liquid Substances 0.000 description 19
- 230000000052 comparative effect Effects 0.000 description 18
- 230000002776 aggregation Effects 0.000 description 16
- 238000004220 aggregation Methods 0.000 description 13
- 238000005520 cutting process Methods 0.000 description 11
- 229920002472 Starch Polymers 0.000 description 10
- 235000019698 starch Nutrition 0.000 description 10
- 239000008107 starch Substances 0.000 description 10
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 8
- 238000001816 cooling Methods 0.000 description 8
- 239000012153 distilled water Substances 0.000 description 8
- 229920000098 polyolefin Polymers 0.000 description 8
- 238000007906 compression Methods 0.000 description 6
- 238000002844 melting Methods 0.000 description 6
- 230000008018 melting Effects 0.000 description 6
- 238000004040 coloring Methods 0.000 description 5
- 230000006835 compression Effects 0.000 description 5
- 238000001035 drying Methods 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 5
- -1 polypropylene Polymers 0.000 description 5
- 239000007787 solid Substances 0.000 description 5
- 229920000092 linear low density polyethylene Polymers 0.000 description 4
- 239000004707 linear low-density polyethylene Substances 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 229940088594 vitamin Drugs 0.000 description 4
- 229930003231 vitamin Natural products 0.000 description 4
- 239000002023 wood Substances 0.000 description 4
- 239000002028 Biomass Substances 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 3
- 238000005054 agglomeration Methods 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 239000011295 pitch Substances 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical compound CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 description 2
- LIKMAJRDDDTEIG-UHFFFAOYSA-N 1-hexene Chemical compound CCCCC=C LIKMAJRDDDTEIG-UHFFFAOYSA-N 0.000 description 2
- KWKAKUADMBZCLK-UHFFFAOYSA-N 1-octene Chemical compound CCCCCCC=C KWKAKUADMBZCLK-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 229920010126 Linear Low Density Polyethylene (LLDPE) Polymers 0.000 description 2
- 150000001735 carboxylic acids Chemical class 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000005038 ethylene vinyl acetate Substances 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 229920001903 high density polyethylene Polymers 0.000 description 2
- 239000004700 high-density polyethylene Substances 0.000 description 2
- 229920001684 low density polyethylene Polymers 0.000 description 2
- 239000004702 low-density polyethylene Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 235000011845 white flour Nutrition 0.000 description 2
- KNDQHSIWLOJIGP-UMRXKNAASA-N (3ar,4s,7r,7as)-rel-3a,4,7,7a-tetrahydro-4,7-methanoisobenzofuran-1,3-dione Chemical compound O=C1OC(=O)[C@@H]2[C@H]1[C@]1([H])C=C[C@@]2([H])C1 KNDQHSIWLOJIGP-UMRXKNAASA-N 0.000 description 1
- KMOUUZVZFBCRAM-OLQVQODUSA-N (3as,7ar)-3a,4,7,7a-tetrahydro-2-benzofuran-1,3-dione Chemical compound C1C=CC[C@@H]2C(=O)OC(=O)[C@@H]21 KMOUUZVZFBCRAM-OLQVQODUSA-N 0.000 description 1
- JPSKCQCQZUGWNM-UHFFFAOYSA-N 2,7-Oxepanedione Chemical compound O=C1CCCCC(=O)O1 JPSKCQCQZUGWNM-UHFFFAOYSA-N 0.000 description 1
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- JAHNSTQSQJOJLO-UHFFFAOYSA-N 2-(3-fluorophenyl)-1h-imidazole Chemical compound FC1=CC=CC(C=2NC=CN=2)=C1 JAHNSTQSQJOJLO-UHFFFAOYSA-N 0.000 description 1
- FALRKNHUBBKYCC-UHFFFAOYSA-N 2-(chloromethyl)pyridine-3-carbonitrile Chemical compound ClCC1=NC=CC=C1C#N FALRKNHUBBKYCC-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- AYKYXWQEBUNJCN-UHFFFAOYSA-N 3-methylfuran-2,5-dione Chemical compound CC1=CC(=O)OC1=O AYKYXWQEBUNJCN-UHFFFAOYSA-N 0.000 description 1
- OFNISBHGPNMTMS-UHFFFAOYSA-N 3-methylideneoxolane-2,5-dione Chemical compound C=C1CC(=O)OC1=O OFNISBHGPNMTMS-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- LGRFSURHDFAFJT-UHFFFAOYSA-N Phthalic anhydride Natural products C1=CC=C2C(=O)OC(=O)C2=C1 LGRFSURHDFAFJT-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- KDYFGRWQOYBRFD-NUQCWPJISA-N butanedioic acid Chemical compound O[14C](=O)CC[14C](O)=O KDYFGRWQOYBRFD-NUQCWPJISA-N 0.000 description 1
- JHIWVOJDXOSYLW-UHFFFAOYSA-N butyl 2,2-difluorocyclopropane-1-carboxylate Chemical compound CCCCOC(=O)C1CC1(F)F JHIWVOJDXOSYLW-UHFFFAOYSA-N 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- HNEGQIOMVPPMNR-IHWYPQMZSA-N citraconic acid Chemical compound OC(=O)C(/C)=C\C(O)=O HNEGQIOMVPPMNR-IHWYPQMZSA-N 0.000 description 1
- 229940018557 citraconic acid Drugs 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000005443 coulometric titration Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- BEFDCLMNVWHSGT-UHFFFAOYSA-N ethenylcyclopentane Chemical compound C=CC1CCCC1 BEFDCLMNVWHSGT-UHFFFAOYSA-N 0.000 description 1
- 229920006244 ethylene-ethyl acrylate Polymers 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 150000003949 imides Chemical class 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Chemical class 0.000 description 1
- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- TVMXDCGIABBOFY-UHFFFAOYSA-N n-Octanol Natural products CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229940100486 rice starch Drugs 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000004334 sorbic acid Substances 0.000 description 1
- 229940075582 sorbic acid Drugs 0.000 description 1
- 235000010199 sorbic acid Nutrition 0.000 description 1
- 229940014800 succinic anhydride Drugs 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 239000011782 vitamin Substances 0.000 description 1
- 235000013343 vitamin Nutrition 0.000 description 1
- 150000003722 vitamin derivatives Chemical class 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 239000004711 α-olefin Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
- B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
- B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
- B29B7/48—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/80—Component parts, details or accessories; Auxiliary operations
- B29B7/84—Venting or degassing ; Removing liquids, e.g. by evaporating components
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K11/00—Use of ingredients of unknown constitution, e.g. undefined reaction products
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L101/00—Compositions of unspecified macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L3/00—Compositions of starch, amylose or amylopectin or of their derivatives or degradation products
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Description
本発明は米含有樹脂組成物の製造方法および二軸混練装置に関する。 The present invention relates to a method for producing a rice-containing resin composition and a twin-screw kneading device.
木粉等のバイオマスをポリオレフィン等の合成樹脂に混練してなる複合材料を成形材料とした成形品は、二酸化炭素の増減に影響を与えにくいカーボンニュートラルの性質を持っているため、地球温暖化対策に繋がる等の理由から利用範囲が広がってきている。 Molded products made from composite materials made by kneading biomass such as wood flour with synthetic resins such as polyolefin have carbon-neutral properties that do not easily affect increases or decreases in carbon dioxide, making them an effective countermeasure against global warming. The scope of its use is expanding for reasons such as its connection to
木粉樹脂を用いた複合材料には、木粉の含有率を５０％以上とする技術がある（例えば特許文献１参照）。 For composite materials using wood powder resin, there is a technique in which the wood powder content is 50% or more (see, for example, Patent Document 1).
本発明者らは、木粉に代わる材料を用いたバイオマスに米粉を用いる点に着目し、米含有の樹脂組成物の製造について鋭意検討を行っている。 The present inventors have focused on the use of rice flour as a biomass alternative to wood flour, and are conducting intensive studies on the production of rice-containing resin compositions.
そこで本発明は、米粉を用いた米含有樹脂組成物の製造方法および製造装置を提供することを目的とする。 Therefore, an object of the present invention is to provide a method and apparatus for producing a rice-containing resin composition using rice flour.
上記課題を解決する本発明の一態様に係る米含有樹脂組成物の製造方法は、気乾状態の米粉と、樹脂とを含む材料を、投入された水の存在下で混練することを有する。 A method for producing a rice-containing resin composition according to one aspect of the present invention that solves the above problems includes kneading a material containing air-dried rice flour and a resin in the presence of added water.
また、本発明の一態様に係る米含有樹脂組成物の製造装置は、気乾状態の米粉と、樹脂とを含む材料を、投入された水の存在下で混練させてなる。製造装置は、第１収容部と、投入部と、回転部と、を有する。第１収容部は、材料と水を収容可能な第１収容空間を形成する。投入部は、第１収容空間に材料および水を投入可能に構成している。回転部は、第１収容空間において回転可能に配置され複数の回転部材を回転部材の回転軸に沿って並べて配置している。回転部は、複数の回転部材が回転する回転軸を２軸設けている。複数の回転部材は、螺旋形状を備え、投入部の直下に配置された第１スクリューと、第１スクリューよりも回転軸の下流に配置され第１スクリューよりも螺旋の溝が浅く形成された第２スクリューと、を備える。 Further, the apparatus for producing a rice-containing resin composition according to one aspect of the present invention is obtained by kneading a material containing air-dried rice flour and a resin in the presence of input water. The manufacturing device includes a first storage section, an input section, and a rotation section. The first accommodating portion forms a first accommodating space capable of accommodating material and water. The input unit is configured to be able to input materials and water into the first storage space. The rotating part is rotatably arranged in the first accommodation space, and has a plurality of rotating members arranged side by side along the rotation axis of the rotating members. The rotating section includes two rotating shafts around which a plurality of rotating members rotate. The plurality of rotating members have a spiral shape, and include a first screw disposed directly below the input portion, and a second screw disposed downstream of the rotating shaft from the first screw and having a shallower spiral groove than the first screw. 2 screws.
本発明の一態様に係る製造方法および製造装置によれば、米粉から米含有樹脂組成物を製造することができる。 According to the manufacturing method and manufacturing apparatus according to one aspect of the present invention, a rice-containing resin composition can be manufactured from rice flour.
以下、添付した図面を参照しながら、本発明の実施形態を説明する。図面の説明において同一の要素には同一の符号を付し、重複する説明を省略する。ここで示す実施形態は、本発明の技術的思想を具体化するために例示するものであって、本発明を限定するものではない。よって、本発明の要旨を逸脱しない範囲で当業者などにより考え得る実施可能な他の形態、使用方法および運用技術などは全て本発明の範囲、要旨に含まれると共に、特許請求の範囲に記載された発明とその均等の範囲に含まれる。本明細書において、範囲を示す「Ｘ～Ｙ」は「Ｘ以上Ｙ以下」を意味する。また、特記しない限り、操作および物性等の測定は室温（２０～２５℃）／相対湿度４０～５０％ＲＨの条件で測定する。 Embodiments of the present invention will be described below with reference to the attached drawings. In the description of the drawings, the same elements are denoted by the same reference numerals, and redundant description will be omitted. The embodiments shown here are exemplified to embody the technical idea of the present invention, and are not intended to limit the present invention. Therefore, all other possible embodiments, methods of use, operational techniques, etc. that can be considered by those skilled in the art without departing from the gist of the present invention are included within the scope and gist of the present invention, and are not included in the scope of the claims. inventions and their equivalents. In this specification, the range "X to Y" means "more than or equal to X and less than or equal to Y." Further, unless otherwise specified, operations and measurements of physical properties, etc. are performed under conditions of room temperature (20 to 25°C)/relative humidity of 40 to 50% RH.
また、本明細書に添付する図面は、図示と理解のしやすさの便宜上、適宜縮尺、縦横の寸法比、形状などについて、実物から変更し模式的に表現される場合があるが、あくまで一例であって、本発明の解釈を限定するものではない。 In addition, for the convenience of illustration and ease of understanding, the drawings attached to this specification may be represented schematically by changing the scale, vertical/width dimension ratio, shape, etc. from the actual thing as appropriate, but these are merely examples. However, this does not limit the interpretation of the present invention.
図１～図５は本発明の一実施形態に係る二軸混練装置１００の説明に供する図である。本実施形態に係る米含有樹脂組成物は、スーパーマーケット等で手に入れることができるレジ袋等の包装用袋に利用することができる。米含有樹脂組成物は、インフレーション加工に適しており、図１～図５に示す二軸混練装置１００によって製造することができる。 1 to 5 are diagrams for explaining a twin-screw kneading apparatus 100 according to an embodiment of the present invention. The rice-containing resin composition according to this embodiment can be used for packaging bags such as plastic shopping bags that can be obtained at supermarkets and the like. The rice-containing resin composition is suitable for inflation processing and can be produced using a twin-screw kneading apparatus 100 shown in FIGS. 1 to 5.
（米含有樹脂組成物）
本実施形態に係る二軸混練装置１００により生成される米含有樹脂組成物は米粉と樹脂（好適にはポリオレフィン）と相溶化剤とを含む。
(Rice-containing resin composition)
The rice-containing resin composition produced by the twin-screw kneading apparatus 100 according to this embodiment includes rice flour, a resin (preferably polyolefin), and a compatibilizer.
ポリオレフィンとしては、低密度ポリエチレン（ＬＤＰＥ）、直鎖状低密度ポリエチレン（ＬＬＤＰＥ）、高密度ポリエチレン（ＨＤＰＥ）若しくはポリプロピレン（ＰＰ）又はエチレン－酢酸ビニル共重合体（ＥＶＡ）、エチレン－アクリル酸エチル共重合体（ＥＥＡ）等のエチレン系の共重合体が挙げられる。中でも、融点とメルトテンションとの観点で直鎖状低密度ポリエチレン（ＬＬＤＰＥ）が好適である。ここで、本発明の一実施形態において、ＬＬＤＰＥは、密度０．８９～０．９２５の直鎖状ポリエチレンコポリマーである（ＪＩＳ Ｋ６８９９－１：２０００）。本発明の一実施形態において、ＬＬＤＰＥは、分岐鎖１０～３０を有する。ＬＬＤＰＥを構成するαオレフィンとして、例えば、１－ブテン、１－ヘキセン、４－メチルペンテン－１、１－オクテン等が好適である。 Examples of polyolefins include low density polyethylene (LDPE), linear low density polyethylene (LLDPE), high density polyethylene (HDPE), polypropylene (PP), ethylene-vinyl acetate copolymer (EVA), ethylene-ethyl acrylate copolymer Examples include ethylene-based copolymers such as polymer (EEA). Among these, linear low density polyethylene (LLDPE) is preferred from the viewpoint of melting point and melt tension. Here, in one embodiment of the present invention, LLDPE is a linear polyethylene copolymer with a density of 0.89 to 0.925 (JIS K6899-1:2000). In one embodiment of the invention, the LLDPE has 10 to 30 branches. Suitable α-olefins constituting LLDPE include, for example, 1-butene, 1-hexene, 4-methylpentene-1,1-octene, and the like.
米粉の原料としては、β構造（結晶構造）である、精米、古米、吟醸米、米ぬか（中白粉）等が好適である。特に米ぬかは、精米される過程で廃棄されることが多いため、米粉として米ぬかを使用することは、環境負荷が低くエコロジーであり、ライフサイクルアセスメントの観点からも好適である。 Suitable raw materials for rice flour include polished rice, aged rice, ginjo rice, rice bran (medium white flour), etc., which have a β structure (crystalline structure). In particular, rice bran is often discarded during the rice milling process, so using rice bran as rice flour has a low environmental impact, is ecological, and is also suitable from the perspective of life cycle assessment.
本発明の一実施形態において、米粉は気乾状態で装置内に投入される。ここで気乾状態とは、大気中におかれた材料（本願では米粉）が、自然乾燥によって水分を減じ、大気中の湿度と平衡を保つようになる状態である。本発明の一実施形態によれば、前記米粉の含水率は、８～１６重量％、１０～１４重量％、あるいは、１１～１３重量％である。本発明の一実施形態では、製造装置に投入される気乾状態の米粉が、β構造（結晶構造）で構成されている。そして、β構造（結晶構造）の米粉が、製造装置の装置内で、（投入された）水の存在下で混練される。この水は製造装置内で加熱されることで飽和水蒸気となり米粉のα化を促進することに寄与する。他方、このように装置内に水を投入した場合、装置内での十分な脱水および脱気は通常難しく、特に大気開放部や真空脱気部で複合化した材料が水の突沸・脱気により不安定になり、ベントアップまたはフレークアップを起こし生産性が著しく低下する虞がある。これに対して後述する、本発明の一実施形態の製造装置は、好適には、１以上のサイドフィーダーおよびサイドベントヴァキュームスタッファー（ＳＶＳ）を備える。このように構成することによって、製造における安定性を担保したまま、ポリオレフィンのマトリックス中に米を微細に均一に混合させた米配合ポリオレフィン樹脂組成物を得ることができる。 In one embodiment of the invention, rice flour is placed into the device in an air-dry state. Here, the air-dry state is a state in which the material (rice flour in this application) placed in the atmosphere reduces moisture through natural drying and maintains equilibrium with the humidity in the atmosphere. According to an embodiment of the present invention, the moisture content of the rice flour is 8-16% by weight, 10-14% by weight, or 11-13% by weight. In one embodiment of the present invention, the air-dried rice flour input into the production apparatus has a β structure (crystalline structure). Then, the rice flour having the β structure (crystalline structure) is kneaded in the presence of (injected) water in the production device. When this water is heated within the production equipment, it becomes saturated steam and contributes to promoting gelatinization of the rice flour. On the other hand, when water is introduced into the equipment in this way, sufficient dehydration and deaeration within the equipment is usually difficult, especially in the atmosphere opening section or vacuum deaeration section, where composite materials are exposed to water due to bumping and deaeration. There is a risk that the product will become unstable and cause vent-up or flake-up, resulting in a significant decrease in productivity. In contrast, a manufacturing apparatus according to an embodiment of the present invention, which will be described later, preferably includes one or more side feeders and side vent vacuum stuffers (SVS). With this configuration, it is possible to obtain a rice-blended polyolefin resin composition in which rice is finely and uniformly mixed in a polyolefin matrix while ensuring stability during production.
本発明の一実施形態において、投入される米粉の好適な配合量（絶乾重量）は、製造装置内に投入される、水以外の材料（ポリオレフィン、相溶化剤、米粉等）の合計量１００重量部に対し、４０～６０重量部、４０～５０重量部、あるいは、４５～５５重量部の範囲であることが適切である。 In one embodiment of the present invention, a suitable blending amount (absolute dry weight) of rice flour to be input is 100% of the total amount of materials other than water (polyolefin, compatibilizer, rice flour, etc.) input into the manufacturing equipment. It is appropriate that the amount is in the range of 40 to 60 parts by weight, 40 to 50 parts by weight, or 45 to 55 parts by weight.
先述のように、従来の米配合ポリオレフィン樹脂組成物を熱流動させて、延伸加工によりフィルム成形品を得ようとすると、このフィルム成形品のポリオレフィン樹脂のマトリックス中には、粒度の大きい配合米の粉末が不均一に分布している。このため、得られたフィルム成形品の膜厚が不均一であったり、延伸加工の途中で亀裂やピンホールが生じるため薄膜化に限度があったり、成形後のフィルムの機械的特性が著しく劣ったりして、良質なフィルム成形品を得ることができないという問題を有していた。これに対して、本技術によれば、ポリオレフィン樹脂に配合される米のデンプン構造がα構造を有するようにα化処理されていることにより、良質なフィルム成形品を得ることができる。 As mentioned earlier, when a conventional rice-blended polyolefin resin composition is thermally fluidized and a film molded product is obtained by stretching, the matrix of the polyolefin resin of this film molded product contains the large grain size of the blended rice. Powder is unevenly distributed. For this reason, the film thickness of the obtained film molded product is uneven, cracks and pinholes occur during the stretching process, which limits the ability to thin the film, and the mechanical properties of the film after molding are significantly inferior. Therefore, there was a problem in that high quality film molded products could not be obtained. On the other hand, according to the present technology, a high-quality film molded product can be obtained because the rice starch structure blended into the polyolefin resin is subjected to gelatinization treatment so that it has an α structure.
相溶化剤は、飽和カルボン酸、不飽和カルボン酸またはその誘導体が用いられる。飽和カルボン酸としては、無水コハク酸、コハク酸、無水フタル酸、フタル酸、無水テトラヒドロフタル酸、無水アジピン酸等が挙げられる。不飽和カルボン酸としては、マレイン酸、無水マレイン酸、無水ナジック酸、イタコン酸、無水イタコン酸、シトラコン酸、無水シトラコン酸、ソルビン酸、アクリル酸等が挙げられる。不飽和カルボン酸の誘導体としては、前記不飽和カルボン酸の金属塩、アミド、イミド、エステル等を使用することができる。また、不飽和カルボン酸またはその誘導体で変性されたポリオレフィン樹脂を使用することができる。これは、ポリオレフィンと不飽和カルボン酸またはその誘導体と、ラジカル発生剤とを溶媒の存在下または不存在下に加熱混合することにより得られる。不飽和カルボン酸またはその誘導体の付加量は、０．１～１５重量％、特に１～１０重量％が好ましい。本発明で使用される相溶化剤としては、臭気が無く、酸性度が小さい不飽和カルボン酸またはその誘導体で変性したポリオレフィン樹脂が好ましい。本発明の一実施形態において、相溶化剤の好適な配合量は、製造装置内に投入される、水以外の材料（ポリオレフィン、相溶化剤、米粉等）の合計量１００重量部に対し、０．２～２０重量部、０．５～１０重量部、あるいは、１～５重量部の範囲であることが適切である。 As the compatibilizing agent, a saturated carboxylic acid, an unsaturated carboxylic acid, or a derivative thereof is used. Examples of the saturated carboxylic acid include succinic anhydride, succinic acid, phthalic anhydride, phthalic acid, tetrahydrophthalic anhydride, adipic anhydride, and the like. Examples of the unsaturated carboxylic acid include maleic acid, maleic anhydride, nadic anhydride, itaconic acid, itaconic anhydride, citraconic acid, citraconic anhydride, sorbic acid, acrylic acid, and the like. As the unsaturated carboxylic acid derivative, metal salts, amides, imides, esters, etc. of the unsaturated carboxylic acids can be used. Furthermore, polyolefin resins modified with unsaturated carboxylic acids or derivatives thereof can be used. This can be obtained by heating and mixing a polyolefin, an unsaturated carboxylic acid or a derivative thereof, and a radical generator in the presence or absence of a solvent. The amount of unsaturated carboxylic acid or its derivative added is preferably 0.1 to 15% by weight, particularly 1 to 10% by weight. The compatibilizing agent used in the present invention is preferably a polyolefin resin modified with an unsaturated carboxylic acid or a derivative thereof that is odorless and has low acidity. In one embodiment of the present invention, a suitable amount of the compatibilizer is 0 parts by weight based on 100 parts by weight of the total amount of materials other than water (polyolefin, compatibilizer, rice flour, etc.) input into the manufacturing equipment. A suitable range is .2 to 20 parts by weight, 0.5 to 10 parts by weight, or 1 to 5 parts by weight.
相溶化剤は市販品を用いてもよく、具体的には、リケエイドＭＧ－４４０Ｐ（理研ビタミン株式会社社製）、ＭＧ－４４１Ｐ（理研ビタミン株式会社製）、ＭＧ－２５０Ｐ（理研ビタミン株式会社製）、ユーメックス１００１（株式会社三洋化成製）等が挙げられる。 Commercially available compatibilizers may be used, and specific examples include RIKEAID MG-440P (manufactured by Riken Vitamin Co., Ltd.), MG-441P (manufactured by Riken Vitamin Co., Ltd.), and MG-250P (manufactured by Riken Vitamin Co., Ltd.). ), Umex 1001 (manufactured by Sanyo Chemical Co., Ltd.), and the like.
これら相溶化剤のうちの１種のみを用いてもよく、必要に応じて２種以上を混合して用いてもよい。 Only one type of these compatibilizers may be used, or two or more types may be mixed and used as necessary.
本発明の一実施形態において、水（好適には蒸留水）の好適な配合量は、製造装置内に投入される、水以外の材料（ポリオレフィン、相溶化剤、米粉等）の合計量１００重量部に対し、０．１～２０重量部、１～２０重量部、あるいは、３～１５重量部の範囲であることが適切である（実施例：８重量部）。よって、本発明の一実施形態において、前記投入される水の量が、前記材料１００重量部に対して、０．１～２０重量部である。 In one embodiment of the present invention, the suitable amount of water (preferably distilled water) is 100% by weight of the total amount of materials other than water (polyolefin, compatibilizer, rice flour, etc.) input into the manufacturing equipment. It is appropriate that the amount is in the range of 0.1 to 20 parts by weight, 1 to 20 parts by weight, or 3 to 15 parts by weight (Example: 8 parts by weight). Therefore, in one embodiment of the present invention, the amount of water added is 0.1 to 20 parts by weight based on 100 parts by weight of the material.
本発明においては、気乾状態の米粉と、樹脂とを含む材料を、投入された水の存在下で混練することによって、前記米粉を、米含有樹脂組成物の製造装置内で、アルファ化することを有する。製造装置外でアルファ化するのではなく、製造装置内でアルファ化することによって米粉がより均一に分散することになる。そのことで、材料中の凝集物を抑制することができ、且つ材料の着色も抑制することが可能となり、結果として、成形加工、特にインフレーション成形における加工特性が向上する。 In the present invention, a material containing air-dried rice flour and a resin is kneaded in the presence of input water, so that the rice flour is pregelatinized in an apparatus for producing a rice-containing resin composition. have that. By pregelatinizing inside the production equipment rather than pregelatinizing it outside the production equipment, the rice flour is more uniformly dispersed. This makes it possible to suppress aggregates in the material and also to suppress coloring of the material, and as a result, processing characteristics in molding, particularly inflation molding, are improved.
本発明の一実施形態において、米含有樹脂組成物中の水分は、２０００重量ｐｐｍ以下、１０００重量ｐｐｍ以下、あるいは、５００重量ｐｐｍ以下である。かかる水分の量は、カールフィッシャー水分測定装置における電量滴定方法で測定される値を言うものとする。 In one embodiment of the present invention, the water content in the rice-containing resin composition is 2000 ppm or less, 1000 ppm or less, or 500 ppm or less. The amount of moisture refers to a value measured by a coulometric titration method using a Karl Fischer moisture measuring device.
本発明の一実施形態において、米含有樹脂組成物のＭＦＲ（メルトフローレイト（１９０℃・２．１６ｋｇｆ））は、１（ｇ／１０ｍｉｎ）以上１０（ｇ／１０ｍｉｎ）未満、１～６（ｇ／１０ｍｉｎ）、１～５（ｇ／１０ｍｉｎ）、あるいは、１～３（ｇ／１０ｍｉｎ）である。また、４～６（ｇ／１０ｍｉｎ）であってもおおむね良好である。 In one embodiment of the present invention, the MFR (melt flow rate (190°C, 2.16 kgf)) of the rice-containing resin composition is 1 (g/10 min) or more and less than 10 (g/10 min), 1 to 6 (g/10 min), /10min), 1 to 5 (g/10min), or 1 to 3 (g/10min). In addition, even if it is 4 to 6 (g/10 min), it is generally good.
（二軸混練装置１００）
上述した材料の混練は二軸混練装置１００によって行われる。二軸混練装置１００は、米含有樹脂組成物の製造装置に相当する。二軸混練装置１００は、図１～図５に示すように第１収容部１０と、投入部２０と、回転部３０と、脱水部５０と、第１脱気部６０と、第２脱気部７０と、排出部８０と、冷却部９０と、切断部１１０と、を有する。
(Two-screw kneading device 100)
The above-mentioned materials are kneaded using a twin-screw kneading device 100. The twin-screw kneading device 100 corresponds to a manufacturing device for a rice-containing resin composition. As shown in FIGS. 1 to 5, the two-screw kneading device 100 includes a first storage section 10, an input section 20, a rotating section 30, a dehydration section 50, a first degassing section 60, and a second degassing section 50. It has a section 70, a discharge section 80, a cooling section 90, and a cutting section 110.
なお、二軸混練装置１００の説明にあたり、図面には直交座標系を表記している。Ｘは後述する回転部３０の回転軸の延在する方向であり、長手方向Ｘとする。Ｙは長手方向Ｘと交差する第１収容部１０の幅方向に相当し、幅方向Ｙとする。Ｚは長手方向Ｘおよび幅方向Ｙと交差する方向であり、高さ方向Ｚとする。以下、詳述する。 In addition, in explaining the biaxial kneading apparatus 100, an orthogonal coordinate system is depicted in the drawings. X is a direction in which a rotating shaft of a rotating section 30, which will be described later, extends, and is referred to as a longitudinal direction. Y corresponds to the width direction of the first accommodating portion 10 that intersects with the longitudinal direction X, and is referred to as the width direction Y. Z is a direction intersecting the longitudinal direction X and the width direction Y, and is defined as the height direction Z. The details will be explained below.
（第１収容部１０）
第１収容部１０は、気乾状態の米粉と、樹脂とを含む材料を、水とともに収容する第１収容空間Ｓ１を形成する。第１収容部１０は、二軸混練装置１００を設置する空間の長手方向Ｘに延在するように長尺に構成している。
(First storage part 10)
The first storage section 10 forms a first storage space S1 that stores a material containing air-dried rice flour and resin together with water. The first accommodating portion 10 is configured to be elongated so as to extend in the longitudinal direction X of the space in which the biaxial kneading device 100 is installed.
第１収容部１０は、回転部３０を構成する複数の回転部材３１、３２、３３、３４、３５、３６、３７、３８、３９、４１、４２を収容する第１収容空間Ｓ１を形成するように構成している。第１収容部１０によって形成される第１収容空間Ｓ１は投入部２０の直下から第２脱気部７０と接続される部位まで一続きになるように構成している。第１収容空間Ｓ１は、本実施形態において回転部３０の回転部材の回転軸を二軸設けるように、図４に示すように断面の内周部分を、２つの円弧を合わせたような形状に構成している。第１収容部１０には第１収容空間Ｓ１の温度を調整するためのヒーター等の加熱装置（図示省略）を設けることができる。上述したヒーターは第１収容部１０の第１収容空間Ｓ１の長手方向Ｘにおいて後述する回転部材の特定の区間毎に温度を調整できるように例えば長手方向Ｘに複数配置することができる。 The first accommodating section 10 forms a first accommodating space S1 that accommodates a plurality of rotating members 31, 32, 33, 34, 35, 36, 37, 38, 39, 41, and 42 constituting the rotating section 30. It is composed of The first accommodating space S1 formed by the first accommodating section 10 is configured to be continuous from directly below the input section 20 to a portion connected to the second degassing section 70. As shown in FIG. 4, the first housing space S1 has an inner circumferential portion of the cross section shaped like a combination of two circular arcs so that the rotating member of the rotating part 30 has two rotating axes in this embodiment. It consists of The first housing part 10 can be provided with a heating device (not shown) such as a heater for adjusting the temperature of the first housing space S1. A plurality of the heaters described above can be arranged, for example, in the longitudinal direction X of the first accommodation space S1 of the first accommodation part 10 so that the temperature can be adjusted for each specific section of the rotating member, which will be described later.
（投入部）
投入部２０は、図１に示すように第１収容空間Ｓ１に上述した材料と水を投入可能なホッパーを備える。投入部２０のホッパーは、上述した米粉、樹脂、および水を投入できるように漏斗状に形成している。
(Insertion section)
As shown in FIG. 1, the charging unit 20 includes a hopper capable of charging the above-mentioned materials and water into the first storage space S1. The hopper of the input section 20 is formed into a funnel shape so that the above-mentioned rice flour, resin, and water can be input.
（回転部）
回転部３０は、第１収容空間Ｓ１において回転可能に配置される。回転部３０は、複数の回転部材３１～３９、４１、４２を長手方向Ｘに平行な方向を回転軸として回転軸に沿って並べて配置するように構成している。回転部材３１～３９、４１、４２は、図５に示すように幅方向Ｙに沿って２軸並べて設けている。回転部材３１は、本明細書において第１スクリュー、回転部材３２は第１パドル、回転部材３３は第２スクリュー、回転部材３４は第２パドル、回転部材３５は第４スクリュー、回転部材４１は第６スクリュー、回転部材４２は第７スクリューに相当する。以下に各々の回転部材について詳述する。
(rotating part)
The rotating part 30 is rotatably arranged in the first accommodation space S1. The rotating section 30 is configured such that a plurality of rotating members 31 to 39, 41, and 42 are arranged side by side along a rotation axis with a direction parallel to the longitudinal direction X as the rotation axis. The rotating members 31 to 39, 41, and 42 are biaxially arranged along the width direction Y, as shown in FIG. In this specification, the rotating member 31 is the first screw, the rotating member 32 is the first paddle, the rotating member 33 is the second screw, the rotating member 34 is the second paddle, the rotating member 35 is the fourth screw, and the rotating member 41 is the fourth screw. The 6th screw and the rotating member 42 correspond to the 7th screw. Each rotating member will be explained in detail below.
（回転部材３１）
回転部材３１は、第１収容部１０の第１収容空間Ｓ１において投入部２０のホッパーの直下に配置している。回転部材３１は、スクリューを形成するように構成している。本明細書において回転部材３１が配置される第１収容空間Ｓ１の部位は材料と水が投入される材料投入部と称する。
(Rotating member 31)
The rotating member 31 is arranged directly below the hopper of the input section 20 in the first storage space S1 of the first storage section 10. The rotating member 31 is configured to form a screw. In this specification, a portion of the first housing space S1 where the rotating member 31 is arranged is referred to as a material inputting section into which materials and water are inputted.
（回転部材３２、３３）
回転部材３２は、図５に示すように第１収容空間Ｓ１の回転部材３１よりも下流側において回転部材３１に隣接して設けている。回転部材３２は、板状部材を回転軸に沿って並べて配置するように構成している。回転部材３２は、回転部材３１と回転部材３３との間に配置している。
(Rotating members 32, 33)
As shown in FIG. 5, the rotating member 32 is provided adjacent to the rotating member 31 on the downstream side of the rotating member 31 in the first accommodation space S1. The rotating member 32 is configured such that plate-like members are arranged side by side along the rotation axis. The rotating member 32 is arranged between the rotating member 31 and the rotating member 33.
回転部材３３は、第１収容空間Ｓ１の回転部材３２よりも下流側において回転部材３２に隣接して設けている。回転部材３３は、回転部材３１と同様にスクリューを形成するように構成している。回転部材３３は、回転部材３１よりも螺旋の溝を浅く形成している。回転部材３３は、回転部材３１よりも螺旋の径方向における最外周と最内周の差が大きくなるように構成している。回転部材３３は、回転部材３１と最外周の大きさが同等で、最内周が回転部材３１よりも小さくなるように構成している。回転部材３２、３３が配置される第１収容空間Ｓ１の部位は、投入部２０から投入された樹脂を溶解させる樹脂溶解部と称することができる。 The rotating member 33 is provided adjacent to the rotating member 32 on the downstream side of the rotating member 32 in the first accommodation space S1. The rotating member 33 is configured to form a screw similarly to the rotating member 31. The rotating member 33 has a shallower spiral groove than the rotating member 31. The rotating member 33 is configured such that the difference between the outermost circumference and the innermost circumference in the radial direction of the spiral is larger than that of the rotating member 31. The rotating member 33 is configured such that its outermost circumference has the same size as the rotating member 31 and its innermost circumference is smaller than that of the rotating member 31. The portion of the first accommodation space S1 where the rotating members 32 and 33 are arranged can be referred to as a resin melting section that melts the resin input from the input section 20.
（回転部材３４）
回転部材３４は、回転部材３２と同様に板状部材を回転軸に沿って複数並べるように配置しており、第１収容空間Ｓ１において回転部材３３よりも回転軸の下流側に配置するように構成している。回転部材３４は、図５において板状部材の板厚が一種類となるように図示しているが、一種類でなくてもよい。回転部材３４は、回転部材３２よりも薄く形成することによってせん断応力をより発揮させて材料を分散させるとともに均一な撹拌を行うように構成している。回転部材３４が配置される第１収容空間Ｓ１の部位は、投入部２０から投入された材料を混練する混練部と称することができる。回転部材３３と回転部材３４との境界近傍には、上述した材料に加えられた水等の気液成分を排出するために脱水部５０を接続するように構成している。詳細は後述する。
(Rotating member 34)
Like the rotating member 32, the rotating member 34 has a plurality of plate-like members arranged along the rotating shaft, and is arranged on the downstream side of the rotating shaft than the rotating member 33 in the first accommodation space S1. It consists of Although the rotating member 34 is illustrated in FIG. 5 so that the thickness of the plate-like member is one type, it is not necessary to have one type. The rotating member 34 is formed thinner than the rotating member 32 so as to exert more shear stress to disperse the material and uniformly stir the material. The portion of the first accommodation space S1 where the rotating member 34 is arranged can be referred to as a kneading section that kneads the material input from the input section 20. A dehydration section 50 is connected near the boundary between the rotating member 33 and the rotating member 34 in order to discharge gas-liquid components such as water added to the above-mentioned material. Details will be described later.
（回転部材３５）
回転部材３５は、第１収容空間Ｓ１において回転部材３４よりも下流側において回転部材３４に隣接して設けている。回転部材３５は、回転部材３３と同様にスクリューを形成するように構成している。回転部材３５は、螺旋の溝の深さが回転部材３３と同等になるように構成している。回転部材３５は、第１収容空間Ｓ１において混練された材料を脱気する第１脱気部６０と接続される。詳しくは後述する。
(Rotating member 35)
The rotating member 35 is provided adjacent to the rotating member 34 on the downstream side of the rotating member 34 in the first accommodation space S1. The rotating member 35 is configured to form a screw similarly to the rotating member 33. The rotating member 35 is configured such that the depth of the spiral groove is the same as that of the rotating member 33. The rotating member 35 is connected to a first deaeration section 60 that deaerates the material kneaded in the first accommodation space S1. The details will be described later.
（回転部材３６～３９）
回転部材３６、３７は、第１収容空間Ｓ１の回転部材３５の下流側において回転部材３５に隣接して設けている。回転部材３６、３７は、回転部材３２と同様に板状部材を並べるように構成している。回転部材３６、３７には起伏の小さい螺旋を形成しており、回転部材３６と回転部材３７の螺旋の回転方向は異なるように構成している。
(Rotating members 36 to 39)
The rotating members 36 and 37 are provided adjacent to the rotating member 35 on the downstream side of the rotating member 35 in the first accommodation space S1. The rotating members 36 and 37 are configured to have plate-like members arranged in a similar manner to the rotating member 32. The rotating members 36 and 37 have spirals with small undulations, and the rotating directions of the spirals of the rotating members 36 and 37 are different from each other.
回転部材３８、３９は、第１収容空間Ｓ１の回転部材３７よりも下流側において回転部材３７に隣接して設けている。回転部材３８、３９は、回転部材３３と同様にスクリューを形成するように構成している。回転部材３８、３９のスクリューは螺旋の溝の深さを回転部材３３と同様に構成している。回転部材３８と回転部材３９は螺旋の回転方向が逆転するように構成している。 The rotating members 38 and 39 are provided adjacent to the rotating member 37 on the downstream side of the rotating member 37 in the first accommodation space S1. The rotating members 38 and 39 are configured to form a screw similarly to the rotating member 33. The screws of the rotating members 38 and 39 have the same depth of spiral grooves as the rotating member 33. The rotating member 38 and the rotating member 39 are configured so that the directions of spiral rotation are reversed.
このように回転部材３６、３８と回転部材３７、３９の螺旋の回転方向を逆転させることによって、回転部材３５から送られる材料は回転部材３７、３９で回転軸の上流側に一時的に押し返されるようにしたうえで下流側に移動する。これにより、材料が回転部材３６～３９に比較的長く滞留し、材料の密度が向上するように圧縮が行われる。回転部材３６～３９が配置される第１収容空間Ｓ１の部位は材料の圧縮を行う圧縮部と称することができる。 By reversing the spiral rotation directions of the rotating members 36, 38 and 37, 39, the material sent from the rotating member 35 is temporarily pushed back to the upstream side of the rotating shaft by the rotating members 37, 39. Then, move downstream. As a result, the material remains in the rotating members 36 to 39 for a relatively long time, and compression is performed so that the density of the material is improved. The portion of the first accommodation space S1 where the rotating members 36 to 39 are arranged can be called a compression section that compresses the material.
（回転部材４１、４２）
回転部材４１は、第１収容空間Ｓ１の回転部材３５、３９よりも下流側において回転部材３９に隣接して設けている。回転部材４２は、第１収容空間Ｓ１の回転部材４１よりも下流側において回転部材４１に隣接して設けている。回転部材４１、４２は、回転部材３３と同様にスクリューを形成するように構成しており、回転部材４２は回転部材４１よりも螺旋のピッチが短くなるように構成している。回転部材４１、４２は第１収容空間Ｓ１に収容された材料の脱気を行う第２脱気部７０と接続される。
(Rotating members 41, 42)
The rotating member 41 is provided adjacent to the rotating member 39 on the downstream side of the rotating members 35 and 39 in the first accommodation space S1. The rotating member 42 is provided adjacent to the rotating member 41 on the downstream side of the rotating member 41 in the first accommodation space S1. The rotating members 41 and 42 are configured to form screws similarly to the rotating member 33, and the rotating member 42 is configured to have a shorter spiral pitch than the rotating member 41. The rotating members 41 and 42 are connected to a second deaeration section 70 that deaerates the material accommodated in the first accommodation space S1.
（脱水部５０）
脱水部５０は、第１収容部１０で混練される材料から発生する水分等の気液成分を排出（脱水）するように構成している。脱水部５０は、図５に示すように回転部材３３と回転部材３４との境界近傍において回転部材３３、３４の回転軸と交差する方向から第１収容部１０に接続している。第１収容空間Ｓ１における回転部材３３と回転部材３４の境界付近では、少なくとも混練の際の第１収容空間Ｓ１の内部圧力が飽和蒸気圧となるように構成できる。
(Dehydration section 50)
The dehydration section 50 is configured to discharge (dehydrate) gas-liquid components such as moisture generated from the material kneaded in the first storage section 10. As shown in FIG. 5, the dewatering section 50 is connected to the first accommodating section 10 near the boundary between the rotating members 33 and 34 from a direction intersecting the rotation axes of the rotating members 33 and 34. Near the boundary between the rotating member 33 and the rotating member 34 in the first housing space S1, the internal pressure of the first housing space S1 at least during kneading can be configured to be the saturated vapor pressure.
脱水部５０は、図５に示すようにスクリュー５１（第３スクリューに相当）と、第２収容部５２と、駆動部５３と、を備える。スクリュー５１は、回転部材３１～３９、４１、４２と交差する方向に回転し、対になるように構成している。駆動部５３は、スクリュー５１を回転させるモーターを備えるように構成している。第２収容部５２は、図５に示すように第１収容部１０と接続され、スクリュー５１を収容する第２収容空間Ｓ２を設けた筐体などを備える。第２収容部５２は、第２収容空間Ｓ２から第１収容空間Ｓ１で発生した水分を排出する。第２収容部５２には第１収容空間Ｓ１で発生した水分を排出可能な開口部（図示省略）を設けている。開口部は、第２収容部５２の上部等に設けることができる。 As shown in FIG. 5, the dewatering section 50 includes a screw 51 (corresponding to a third screw), a second storage section 52, and a drive section 53. The screw 51 rotates in a direction intersecting the rotating members 31 to 39, 41, and 42, and is configured to form a pair. The drive unit 53 is configured to include a motor that rotates the screw 51. The second accommodating part 52 is connected to the first accommodating part 10 as shown in FIG. 5, and includes a casing having a second accommodating space S2 for accommodating the screw 51. The second accommodating portion 52 discharges moisture generated in the first accommodating space S1 from the second accommodating space S2. The second accommodating portion 52 is provided with an opening (not shown) through which moisture generated in the first accommodating space S1 can be discharged. The opening can be provided in the upper part of the second accommodating part 52 or the like.
（第１脱気部６０）
第１脱気部６０は、第１収容部１０において回転部材３５が配置される近傍に接続するように構成している。第１脱気部６０は、図５に示すようにスクリュー６１（第５スクリューに相当）と、第３収容部６２と、駆動部６３と、を備える。スクリュー６１は、回転部材３１～３９、４１、４２の回転軸と交差する方向に回転し、対になるように構成している。駆動部６３は、脱水部５０と同様にスクリュー６１を回転駆動させるモーターなどを備えるように構成している。第３収容部６２は、回転部材３５の近傍で第１収容部１０と接続され、スクリュー６１を収容する第３収容空間Ｓ３を設けた筐体などを備える。第３収容部６２は、第３収容空間Ｓ３を介して第１収容空間Ｓ１で発生した気液成分を吸引可能な真空ポンプなどと接続している。
(First degassing section 60)
The first degassing section 60 is configured to be connected to the first housing section 10 near where the rotating member 35 is arranged. The first degassing section 60 includes a screw 61 (corresponding to the fifth screw), a third accommodating section 62, and a driving section 63, as shown in FIG. The screws 61 rotate in a direction intersecting the rotational axes of the rotating members 31 to 39, 41, and 42, and are arranged in pairs. The drive unit 63 is configured to include a motor that rotates the screw 61 similarly to the dehydration unit 50. The third accommodating part 62 is connected to the first accommodating part 10 in the vicinity of the rotating member 35, and includes a casing having a third accommodating space S3 for accommodating the screw 61. The third storage section 62 is connected to a vacuum pump or the like capable of sucking the gas-liquid component generated in the first storage space S1 via the third storage space S3.
（第２脱気部７０）
第２脱気部７０は、第１収容部１０において回転部材４１が配置される近傍において接続するように構成している。第２脱気部７０は、図５に示すようにスクリュー７１（第８スクリューに相当）と、第４収容部７２と、駆動部７３と、を、備える。スクリュー７１は、回転部材３１～３９、４１、４２の回転軸と交差する方向に回転し、対になるように構成している。駆動部７３は、第１脱気部６０と同様にスクリュー７１を回転駆動させるモーターなどを備えるように構成している。第４収容部７２は、回転部材４１の近傍で第１収容部１０と接続され、スクリュー７１を収容する第４収容空間Ｓ４を設けた筐体などを備える。第４収容部７２は、第４収容空間Ｓ４を介して第１収容空間Ｓ１で発生した気液成分を吸引可能な真空ポンプなどと接続している。なお、第２収容部５２、第３収容部６２、第４収容部７２は、図５において便宜上、簡略化して図示している。
(Second deaeration section 70)
The second degassing section 70 is configured to be connected to the first accommodating section 10 near where the rotating member 41 is arranged. As shown in FIG. 5, the second degassing section 70 includes a screw 71 (corresponding to the eighth screw), a fourth accommodating section 72, and a driving section 73. The screws 71 rotate in a direction intersecting the rotational axes of the rotating members 31 to 39, 41, and 42, and are arranged in pairs. The drive unit 73 is configured to include a motor that rotates the screw 71 similarly to the first deaeration unit 60 . The fourth accommodating part 72 is connected to the first accommodating part 10 in the vicinity of the rotating member 41, and includes a casing having a fourth accommodating space S4 for accommodating the screw 71. The fourth storage section 72 is connected to a vacuum pump or the like capable of sucking the gas-liquid component generated in the first storage space S1 via the fourth storage space S4. Note that the second accommodating part 52, the third accommodating part 62, and the fourth accommodating part 72 are illustrated in a simplified manner in FIG. 5 for convenience.
（排出部８０）
排出部８０は、図１等に示すように第１収容部１０の下流側における外側に隣接して設けている。排出部８０は、第１収容部１０の第１収容空間Ｓ１において脱気された材料を紐状に形成するために設けられる。排出部８０は、本実施形態において第１収容部１０の長手方向Ｘにおける端部であって第１収容部１０の第１収容空間Ｓ１と外部とを繋ぐ部位に設けた複数の穴形状を設けた部材を備えるように構成している。排出部８０は、第１収容部１０に配置された回転部材３１～３９、４１、４２などと同様にヒーターなどの加熱装置を設けることによって加温することができる。
(Discharge section 80)
The discharge section 80 is provided adjacent to the outside of the first storage section 10 on the downstream side, as shown in FIG. 1 and the like. The discharge section 80 is provided to form the material degassed in the first accommodation space S1 of the first accommodation section 10 into a string shape. In this embodiment, the discharge part 80 is provided with a plurality of hole shapes provided at the end in the longitudinal direction It is configured to include a member. The discharge section 80 can be heated by providing a heating device such as a heater in the same way as the rotating members 31 to 39, 41, 42, etc. arranged in the first storage section 10.
（冷却部９０）
冷却部９０は、第１収容部１０から排出された紐状の材料を冷却するために設けられる。冷却部９０は、図１に示すようにコンベヤー９１と、液体供給部９２と、気体供給部９３と、を備える。
(Cooling section 90)
The cooling unit 90 is provided to cool the string-like material discharged from the first storage unit 10. The cooling unit 90 includes a conveyor 91, a liquid supply unit 92, and a gas supply unit 93, as shown in FIG.
コンベヤー９１は、排出部８０に隣接して設けている。コンベヤー９１は、図２に示すように排出部８０から排出された材料を切断部１１０まで搬送するように構成している。コンベヤー９１は、本実施形態において図２に示すように長手方向Ｘから高さ方向Ｚの正の方向に向かって傾斜した斜め方向に沿って延在するように構成している。ただし、コンベヤー９１の延在方向は一例であって材料を切断部１１０に搬送できれば、コンベヤーの具体的な搬送方向は図２等に限定されない。 The conveyor 91 is provided adjacent to the discharge section 80. The conveyor 91 is configured to convey the material discharged from the discharge section 80 to the cutting section 110, as shown in FIG. In this embodiment, the conveyor 91 is configured to extend along an oblique direction that is inclined from the longitudinal direction X toward the positive direction of the height direction Z, as shown in FIG. However, the extending direction of the conveyor 91 is an example, and the specific conveying direction of the conveyor is not limited to that shown in FIG. 2 and the like as long as the material can be conveyed to the cutting section 110.
液体供給部９２は、コンベヤー９１上で搬送される材料に比較的温度の低い冷却水を供給するように構成している。液体供給部９２は、ホース等によって冷却水の供給源と接続された噴射ノズルをコンベヤー９１の搬送方向に複数配置することによって構成している。 The liquid supply section 92 is configured to supply relatively low-temperature cooling water to the material conveyed on the conveyor 91. The liquid supply section 92 is configured by arranging a plurality of injection nozzles in the transport direction of the conveyor 91, which are connected to a cooling water supply source through a hose or the like.
気体供給部９３は、所定の温度に調整された空気等の気体をコンベヤー９１上で搬送される材料に供給するように構成している。気体供給部９３は、不図示のダクトと、ダクトに接続され、気体をコンベヤー９１上の材料に向けて噴射可能なブロワーを備えるように構成している。 The gas supply section 93 is configured to supply gas such as air adjusted to a predetermined temperature to the material being conveyed on the conveyor 91. The gas supply section 93 is configured to include a duct (not shown) and a blower connected to the duct and capable of injecting gas toward the material on the conveyor 91.
（切断部１１０）
切断部１１０は、排出部８０から排出され、冷却部９０において冷却された材料を所定の長さにて切断するように構成している。切断部１１０は、図１に示すように材料を送る送りローラー１１１と、送られた材料を切断する刃物を備えた切断ローラー１１２と、を備えることができる。また、冷却された材料は、乾燥を行うチャンバー等の設備（乾燥部と呼ぶことができる）において乾燥工程を実施することができる。
(Cutting section 110)
The cutting section 110 is configured to cut the material discharged from the discharge section 80 and cooled in the cooling section 90 to a predetermined length. As shown in FIG. 1, the cutting section 110 can include a feed roller 111 that feeds the material, and a cutting roller 112 equipped with a blade that cuts the fed material. Moreover, the cooled material can be subjected to a drying process in equipment such as a drying chamber (which can be called a drying section).
（米含有樹脂組成物の製造方法）
次に、本実施形態に係る米含有樹脂組成物の製造方法について説明する。図６は本発明の一実施形態に係る米含有樹脂組成物の製造方法を示すフローチャートである。
(Method for producing rice-containing resin composition)
Next, a method for producing a rice-containing resin composition according to the present embodiment will be described. FIG. 6 is a flowchart showing a method for producing a rice-containing resin composition according to an embodiment of the present invention.
まず、二軸混練装置１００では投入部２０のホッパーから気乾状態の米粉、上述した樹脂、相溶化剤および水が投入される（ＳＴ１）。投入される水の量は、米粉絶乾質量部（１００重量部）に対して０．１～２０重量部とすることができる。この時点で第１収容部１０の第１収容空間Ｓ１に配置された回転部材３１～３９、４１、４２は所定の温度に加温した状態に設定することができる。 First, in the twin-screw kneading apparatus 100, air-dried rice flour, the above-mentioned resin, a compatibilizer, and water are charged from the hopper of the charging section 20 (ST1). The amount of water added can be 0.1 to 20 parts by weight based on the bone dry mass of rice flour (100 parts by weight). At this point, the rotating members 31 to 39, 41, and 42 arranged in the first housing space S1 of the first housing part 10 can be set to a predetermined temperature.
次に、投入部２０のホッパーから投入された樹脂と水は回転部材３１に送られて樹脂溶解部に相当する回転部材３２、３３に搬送される。第１収容空間Ｓ１の樹脂溶解部の近傍は約２００℃に加温された状態において回転部材３２、３３によって上述した材料が水分と混合され、溶解する（ＳＴ２）。この際に材料に含まれる米粉は加温された状態で水と混合されることにより、アルファ化が開始される。 Next, the resin and water charged from the hopper of the charging section 20 are sent to a rotating member 31 and conveyed to rotating members 32 and 33 corresponding to the resin melting section. The vicinity of the resin melting portion of the first accommodation space S1 is heated to about 200° C., and the above-mentioned materials are mixed with moisture by the rotating members 32 and 33 and melted (ST2). At this time, the rice flour contained in the ingredients is mixed with water in a heated state, thereby starting to gelatinize.
そして、材料は混練部に相当する回転部材３４へと送られ、混練が行われる（ＳＴ３）。混練部に相当する回転部材３４では、上述のように回転部材３４が樹脂溶解部に相当する回転部材３２よりも薄く構成されることによって材料の分散と撹拌が促進される。回転部材３４を通過した材料はさらに回転部材３５に送られる。 The material is then sent to the rotating member 34 corresponding to the kneading section, where kneading is performed (ST3). In the rotating member 34 corresponding to the kneading section, the dispersion and stirring of the material is promoted by making the rotating member 34 thinner than the rotating member 32 corresponding to the resin melting section as described above. The material that has passed through the rotating member 34 is further sent to the rotating member 35.
また、材料が回転部材３３から回転部材３４へ送られる際に材料に含まれる水分は脱水部５０によって脱水される。このとき、スクリュー５１が脱水部５０の入り口付近で回転することによって材料の固形成分は第１収容空間Ｓ１に残ったまま下流側に送られ、水分等の気液成分が第２収容部５２の開口部からある程度排出される。 Further, when the material is sent from the rotating member 33 to the rotating member 34, water contained in the material is dehydrated by the dehydrating section 50. At this time, as the screw 51 rotates near the entrance of the dewatering section 50, the solid components of the material are sent downstream while remaining in the first storage space S1, and gas and liquid components such as moisture are transferred to the second storage section 52. Some amount is discharged from the opening.
回転部材３５では、材料が回転部材３５によって下流側に送られつつ、第１脱気部６０によって材料の気液成分がさらに排出される（ＳＴ４）。第１脱気部６０は、ポンプ等に接続されて材料の気液成分が吸引される一方で、スクリュー６１によって材料の固形成分は第１収容空間Ｓ１に残り、圧縮部に相当する回転部材３６～３９に送られる。 In the rotating member 35, while the material is sent to the downstream side by the rotating member 35, gas-liquid components of the material are further discharged by the first degassing section 60 (ST4). The first degassing section 60 is connected to a pump or the like to suck the gas and liquid components of the material, while the solid components of the material remain in the first storage space S1 by the screw 61, and the rotating member 36 corresponding to the compression section ~ Sent to 39.
圧縮部に相当する回転部材３６～３９では回転部材３７、３９の位置において材料が上流側に送り戻されたうえで下流側に送られることによって、材料の密度が高くなるように圧縮の工程が行われる（ＳＴ５）。 In the rotating members 36 to 39 corresponding to the compression section, the material is sent back to the upstream side at the positions of the rotating members 37 and 39, and then sent to the downstream side, so that the compression process is performed so that the density of the material becomes high. This is done (ST5).
回転部材３６～３９を通過した材料は、回転部材４１、４２において排出部８０に向けてさらに送られる。第２脱気部７０では、ピッチの異なる回転部材４１、４２のうち、回転部材４１の位置においてポンプ等によって材料の気液成分がさらに吸引されて脱気される（ＳＴ６）。材料は、回転部材４２によって回転部材４１よりも送り速度が上昇しつつ、排出部８０において複数の紐形状になって第１収容空間Ｓ１の外部に排出される。 The material that has passed through the rotating members 36 to 39 is further sent toward the discharge section 80 at the rotating members 41 and 42. In the second degassing section 70, gas-liquid components of the material are further sucked and degassed by a pump or the like at the position of the rotary member 41 of the rotary members 41 and 42 having different pitches (ST6). The material is discharged to the outside of the first storage space S1 in the form of a plurality of strings at the discharge section 80 while the rotating member 42 increases the feed rate compared to the rotating member 41.
冷却部９０では、紐状の材料がコンベヤー９１によって切断部１１０に向けて搬送される。この間に材料は、液体供給部９２によって冷却水を吹きかけられて冷却され、その後、気体供給部９３において冷却風に曝されることによって冷却される（ＳＴ７）。 In the cooling section 90, the string-like material is conveyed by a conveyor 91 toward a cutting section 110. During this time, the material is cooled by being sprayed with cooling water by the liquid supply section 92, and then cooled by being exposed to cooling air in the gas supply section 93 (ST7).
冷却部９０を経た紐状の材料は、送りローラー１１１によって搬送され、切断ローラー１１２によって所定の長さに切断される（ＳＴ８）。切断部１１０によって切断された材料は平面状に引き延ばし、乾燥工程（ＳＴ９）を経ることによって、米含有樹脂組成物を上述したレジ袋等に好適に成形可能な形状に形成することができる。 The string-like material that has passed through the cooling section 90 is conveyed by a feed roller 111 and cut into a predetermined length by a cutting roller 112 (ST8). The material cut by the cutting section 110 is stretched into a flat shape and subjected to a drying step (ST9), whereby the rice-containing resin composition can be formed into a shape that can be suitably molded into the above-mentioned plastic shopping bags and the like.
以上、説明したように本実施形態に係る米含有樹脂組成物の製造方法は、気乾状態の米粉と樹脂とを含む材料を投入された水の存在下で混練するように構成している。 As described above, the method for producing a rice-containing resin composition according to the present embodiment is configured such that a material containing air-dried rice flour and a resin is kneaded in the presence of added water.
これにより、米粉を用いて環境に優しいバイオマスの樹脂組成物を製造することができる。 Thereby, an environmentally friendly biomass resin composition can be produced using rice flour.
また、上述した材料は相溶化剤を含む。これにより、米粉や樹脂などの材料を均一に混合することを促進できる。 The materials described above also include compatibilizers. This can promote uniform mixing of materials such as rice flour and resin.
また、上述した材料はポリオレフィン樹脂であることによって米含有樹脂組成物を生成（製造）することができる。 Further, since the above-mentioned material is a polyolefin resin, a rice-containing resin composition can be produced (manufactured).
また、米粉は製造工程においてアルファ化するように構成している。これにより、米粉を上述した樹脂と混合して米含有樹脂組成物を生成（製造）することができる。 Additionally, the rice flour is configured so that it becomes pregelatinized during the manufacturing process. Thereby, a rice-containing resin composition can be produced (manufactured) by mixing rice flour with the above-mentioned resin.
また、上述した製造方法において投入される水の量は、材料１００重量部に対して０．１～２０重量部となるように構成している。このように構成することによって、米粉を樹脂と混練して米含有樹脂組成物を生成（製造）することができる。 Further, the amount of water added in the above manufacturing method is set to be 0.1 to 20 parts by weight per 100 parts by weight of the material. With this configuration, a rice-containing resin composition can be produced (manufactured) by kneading rice flour with a resin.
また、混練は二軸混練装置１００を用いることによって、上述した米粉を含む材料を混練して樹脂組成物を生成（製造）することができる。 Furthermore, by using the twin-screw kneading apparatus 100 for kneading, the above-mentioned rice flour-containing material can be kneaded to produce (manufacture) a resin composition.
また、二軸混練装置１００は脱水を行う脱水部５０を備える。これにより、米粉から樹脂組成物を生成（製造）する場合に不要な水分などの気液成分を取り除くことができる。 Further, the two-screw kneading device 100 includes a dehydration section 50 that performs dehydration. Thereby, unnecessary gas-liquid components such as moisture can be removed when producing (manufacturing) a resin composition from rice flour.
また、脱水部５０では飽和蒸気圧下において脱水を行うように構成している。そのため、米粉に大量の水分を投入しても不要な水分等の気液成分を取り除くことができる。 Further, the dehydration section 50 is configured to perform dehydration under saturated steam pressure. Therefore, even if a large amount of water is added to rice flour, unnecessary gas and liquid components such as water can be removed.
また、二軸混練装置１００は２つの脱気部として第１脱気部６０と第２脱気部７０を備えるように構成している。そのため、比較的量の多い水を用いて米粉と樹脂の混練を行った際に、第１脱気部６０と第２脱気部７０を用いることによって樹脂組成物に不要な水分等の気液成分を取り除くことができる。 Further, the twin-screw kneading apparatus 100 is configured to include a first degassing part 60 and a second degassing part 70 as two degassing parts. Therefore, when kneading rice flour and resin using a relatively large amount of water, by using the first deaeration section 60 and the second deaeration section 70, unnecessary gas and liquid such as moisture can be removed from the resin composition. components can be removed.
また、二軸混練装置１００は第１収容部１０と、投入部２０と、回転部３０と、を有する。第１収容部１０は材料と水を収容可能な第１収容空間Ｓ１を形成する。投入部２０は第１収容空間Ｓ１において材料および水を投入可能に構成している。回転部３０は、第１収容空間Ｓ１において回転可能に配置され、複数の回転部材３１～３９、４１、４２を回転部材３１～３９、４１、４２の回転軸に沿って並べて配置している。回転部３０は、回転部材３１～３９、４１、４２が回転する回転軸を２軸設けている。回転部材３１～３９、４１、４２は、螺旋形状を備え、投入部２０の直下に配置された回転部材３１と、回転部材３１よりも回転軸の下流側に配置され、回転部材３１よりも螺旋の溝が浅く形成された回転部材３３を備える。このように構成することによって、米粉が通常、二軸混練装置ではスクリューによって下流側に送り難くても、回転部材３１によって米粉を下流側に送るようにして混練を行うことによって米含有樹脂組成物を生成（製造）することができる。 Further, the two-screw kneading device 100 includes a first storage section 10, a charging section 20, and a rotating section 30. The first accommodating portion 10 forms a first accommodating space S1 capable of accommodating materials and water. The input unit 20 is configured to be able to input materials and water in the first storage space S1. The rotating part 30 is rotatably arranged in the first housing space S1, and has a plurality of rotating members 31 to 39, 41, and 42 arranged side by side along the rotational axes of the rotating members 31 to 39, 41, and 42. The rotating section 30 has two rotating shafts around which the rotating members 31 to 39, 41, and 42 rotate. The rotating members 31 to 39, 41, and 42 have a spiral shape, and the rotating member 31 is arranged directly below the input section 20, and the rotating member 31 is arranged downstream of the rotating shaft than the rotating member 31, and the rotating member 31 has a spiral shape. The rotary member 33 is provided with a shallow groove. With this configuration, even if rice flour is normally difficult to send downstream with a screw in a twin-screw kneading device, rice flour can be sent downstream with the rotating member 31 and kneaded, thereby producing a rice-containing resin composition. can be produced (manufactured).
また、回転部材３１～３９、４１、４２は、回転部材３１と回転部材３３の間に配置され、板状部材を回転軸に並べて配置した回転部材３２と、回転部材３３よりも回転軸の下流側に配置される板状の回転部材３４と、を備える。回転部材３３と回転部材３４の近傍には、脱水部５０を接続している。脱水部５０は、スクリュー５１と、第２収容部５２と、を備える。スクリュー５１は、回転軸と交差する幅方向Ｙに平行な方向を回転軸として回転し、対となるように構成している。第２収容部５２は、スクリュー５１を収容する第２収容空間Ｓ２を備えるとともに第１収容部１０と接続され第１収容空間Ｓ１で発生した水分を排出可能な開口部を設けている。このように構成することによって、材料に含まれる固形成分を第１収容部１０の第１収容空間Ｓ１に残しつつ、材料に含まれる不要な水分等の気液成分を取り除くことができる。 Further, the rotating members 31 to 39, 41, and 42 are arranged between the rotating member 31 and the rotating member 33, and the rotating member 32 has plate-like members arranged side by side on the rotating shaft, and the rotating member 32 is located downstream of the rotating shaft from the rotating member 33. A plate-shaped rotating member 34 disposed on the side. A dewatering section 50 is connected near the rotating member 33 and the rotating member 34. The dewatering section 50 includes a screw 51 and a second accommodating section 52. The screws 51 rotate in a direction parallel to the width direction Y that intersects with the rotation axis, and are arranged in pairs. The second accommodating part 52 includes a second accommodating space S2 that accommodates the screw 51, and also has an opening that is connected to the first accommodating part 10 and can discharge moisture generated in the first accommodating space S1. With this configuration, it is possible to remove unnecessary gas-liquid components such as moisture contained in the material while leaving the solid components contained in the material in the first storage space S1 of the first storage section 10.
また、回転部材３１～３９、４１、４２は、第１収容空間Ｓ１において回転部材３４よりも下流側に設けられる回転部材３５を備える。回転部材３５の近傍には、第１脱気部６０を接続している。第１脱気部６０は、スクリュー６１と、第３収容部６２と、を備える。スクリュー６１は、回転部材３１～３９、４１、４２の回転軸と交差する方向に平行な方向を回転軸として回転し、対になるように構成している。第３収容部６２は、スクリュー６１を収容する第３収容空間Ｓ３を備えるとともに第１収容部１０と接続され、第１収容空間Ｓ１で発生した気体を吸引により排出可能なポンプなどと接続される。このように構成することによって、脱水部５０と同様に材料の固形成分を第１収容空間Ｓ１に残しつつ、材料に含まれる不要な気液成分をさらに排出するようにできる。 Further, the rotating members 31 to 39, 41, and 42 include a rotating member 35 provided downstream of the rotating member 34 in the first accommodation space S1. A first degassing section 60 is connected near the rotating member 35 . The first degassing section 60 includes a screw 61 and a third accommodating section 62. The screws 61 rotate in a direction parallel to the direction intersecting the rotation axes of the rotating members 31 to 39, 41, and 42, and are arranged in pairs. The third accommodating part 62 includes a third accommodating space S3 that accommodates the screw 61, is connected to the first accommodating part 10, and is connected to a pump or the like that can discharge gas generated in the first accommodating space S1 by suction. . By configuring in this manner, it is possible to further discharge unnecessary gas-liquid components contained in the material while leaving the solid components of the material in the first storage space S1 similarly to the dehydration section 50.
また、回転部材３１～３９、４１、４２は、第１収容空間Ｓ１において回転部材３５よりも下流側に設けられる回転部材４１と、回転部材４１に隣接して設けられる回転部材４２と、を備える。回転部材４１の近傍には、第２脱気部７０を接続している。第２脱気部７０は、スクリュー７１と、第４収容部７２と、を備える。スクリュー７１は、回転部材４１の回転軸と交差する方向に平行な方向を回転軸として回転し、対になるように構成している。第４収容部７２は、スクリュー７１を収容する第４収容空間Ｓ４を備えるとともに第１収容部１０と接続され、第１収容空間Ｓ１で発生した気体を吸引により排出可能なポンプと接続される。このように構成することによって、第１脱気部６０と同様に材料の固形成分を第１収容空間Ｓ１に残しつつ、材料の不要な気液成分をさらに排出することができる。また、第２脱気部７０を回転部材４２ではなく、螺旋のピッチが比較的大きい回転部材４１の近傍で接続することによって、不要な気液成分を第１収容空間Ｓ１から排出し易くすることができる。 Further, the rotating members 31 to 39, 41, and 42 include a rotating member 41 provided downstream of the rotating member 35 in the first accommodation space S1, and a rotating member 42 provided adjacent to the rotating member 41. . A second degassing section 70 is connected near the rotating member 41. The second degassing section 70 includes a screw 71 and a fourth accommodating section 72. The screws 71 rotate in a direction parallel to a direction intersecting the rotation axis of the rotating member 41, and are arranged in pairs. The fourth accommodating part 72 includes a fourth accommodating space S4 that accommodates the screw 71, is connected to the first accommodating part 10, and is connected to a pump that can discharge gas generated in the first accommodating space S1 by suction. With this configuration, as with the first degassing section 60, unnecessary gas-liquid components of the material can be further discharged while leaving the solid components of the material in the first storage space S1. Furthermore, by connecting the second degassing section 70 not to the rotating member 42 but near the rotating member 41 whose spiral pitch is relatively large, unnecessary gas-liquid components can be easily discharged from the first accommodation space S1. I can do it.
（実施例）
次に本発明に係る米含有樹脂組成物の性能について実験を行ったので、以下に説明する。図７は実施例の評価に関する画像である。図８は実施例１、比較例１、２、３及び４の樹脂組成物を黒色紙の上で撮影した写真であり、写真の左側から順に、実施例１、比較例１、２、３及び４の樹脂組成物である。
(Example)
Next, an experiment was conducted on the performance of the rice-containing resin composition according to the present invention, which will be explained below. FIG. 7 is an image related to the evaluation of the example. FIG. 8 is a photograph of the resin compositions of Example 1, Comparative Examples 1, 2, 3, and 4 taken on black paper. This is the resin composition of No. 4.
本実験では後述する４つの仕様にて米含有樹脂組成物を生成した際のＭＦＲ（ｇ／１０ｍｉｎ）、水分、および米含有樹脂組成物に含まれる澱粉の凝集の程度を確認した。本実験において米含有樹脂組成物は、Ａ：ＬＬＤＰＥ（プライムポリマー ｅｖｏｌｕｅ（登録商標） ｓｐ４０３０）、Ｂ：無水マレイン酸変性ポリプロピレン（理研ビタミン ＭＧ－４４０Ｐ）、Ｃ：米粉（新潟ケンベイ 中白粉、含水率１２％）、Ｄ：蒸留水を使用した。 In this experiment, the MFR (g/10 min), water content, and degree of aggregation of starch contained in the rice-containing resin composition were confirmed when the rice-containing resin composition was produced according to the four specifications described below. In this experiment, the rice-containing resin compositions were: A: LLDPE (Prime Polymer Evolution (registered trademark) sp4030), B: maleic anhydride-modified polypropylene (Riken Vitamin MG-440P), C: rice flour (Niigata Kenbei medium white flour, water content) 12%), D: Distilled water was used.
装置としては同方向に回転する二軸混練装置１００、または第１脱気部６０と第２脱気部７０を備えない真空脱気装置を使用した。回転部材のＬ／Ｄは５０とした。回転部３０の回転部材は上述した回転部材３１～３９、４１、４２を用いた。回転部材３１～３９、４１、４２の長手方向Ｘの全体長さに対する回転部材３２、３４の比率（ニーディングブロック比率）は２５％とした。また、蒸留水は投入部２０のホッパーからチューブポンプを用いて第１収容空間Ｓ１に供給した。 As the apparatus, a twin-screw kneading apparatus 100 rotating in the same direction or a vacuum deaerator not equipped with the first deaerator 60 and the second deaerator 70 was used. L/D of the rotating member was set to 50. The rotating members 31 to 39, 41, and 42 described above were used as the rotating members of the rotating section 30. The ratio of the rotating members 32 and 34 (kneading block ratio) to the overall length of the rotating members 31 to 39, 41, and 42 in the longitudinal direction X was set to 25%. Further, distilled water was supplied from the hopper of the input section 20 to the first storage space S1 using a tube pump.
回転部材３１～３９、４１、４２の回転数は、２８０ｒｐｍとした。そして、第１収容空間Ｓ１における投入部に相当する部位を８０℃、樹脂溶解部に相当する部位を１６０℃、混練部に相当する部位を２００℃に加温した。また、第１収容空間Ｓ１における第１脱気部６０と第２脱気部７０との接続部を１８０℃、圧縮部に相当する部位を１９０℃、排出部８０を１９０℃に加温した。 The rotational speed of the rotating members 31 to 39, 41, and 42 was 280 rpm. Then, in the first housing space S1, a portion corresponding to the input portion was heated to 80° C., a portion corresponding to the resin melting portion was heated to 160° C., and a portion corresponding to the kneading portion was heated to 200° C. Further, the connecting portion between the first degassing section 60 and the second degassing section 70 in the first housing space S1 was heated to 180°C, the portion corresponding to the compression portion was heated to 190°C, and the discharge portion 80 was heated to 190°C.
本実験では比較対象として実施例１と比較例１、２、３、４を用意した。実施例１は上述した二軸混練装置１００を用い、蒸留水を上述した材料に添加しつつ、樹脂組成物を生成した。 In this experiment, Example 1 and Comparative Examples 1, 2, 3, and 4 were prepared as comparison targets. In Example 1, a resin composition was produced using the above-mentioned twin-screw kneading apparatus 100 while adding distilled water to the above-mentioned materials.
比較例１は上述した二軸混練装置１００を用いる一方で蒸留水を添加せずに材料を複合化するようにした。 In Comparative Example 1, the above-mentioned twin-screw kneading device 100 was used, but the materials were compounded without adding distilled water.
比較例２は上述した二軸混練装置１００を構成する第１脱気部６０と第２脱気部７０を備えない真空脱気装置を用いて材料を複合化した。 In Comparative Example 2, materials were composited using a vacuum deaerator that does not include the first deaerator 60 and the second deaerator 70 that constitute the above-mentioned two-screw kneading device 100.
比較例３は、材料Ｃにアルファ化米を用い、その他は実施例１と同様である。 Comparative Example 3 is the same as Example 1 except that pregelatinized rice is used as material C.
比較例４は、特開２００５－３３０４０２の実施例１に準拠し、蒸留水添加を行わず、蒸留水で３０分浸漬した精米を米粉の代わりに用い、その他は実施例１と同様である。 Comparative Example 4 is based on Example 1 of JP-A-2005-330402, without adding distilled water, and using polished rice soaked in distilled water for 30 minutes instead of rice flour, and the rest is the same as Example 1.
本実験では上述した実施例１、比較例１、２においてメルトフローレート（ＭＦＲ：ｇ／１０ｍｉｎ）と、樹脂組成物の水分（ｐｐｍ）と、樹脂組成物における澱粉の凝集の程度を確認した。ＭＦＲは４～６をおおむね良好とし、それ以外を不良と考えた。水分は、５００～１０００ｐｐｍをおおむね良好とし、それ以外を不良と考えた。澱粉の凝集は、切断部１１０から送られた樹脂組成物を１７０℃でホットプレスによる熱圧成形にて平面状に引き延ばしたものを目視で観察し、澱粉の凝集が見られるか確認した。参考として、図７における左側のシートが澱粉の凝集が観察されない仕様であり、右側のシートが澱粉の凝集が観察された仕様である。 In this experiment, the melt flow rate (MFR: g/10 min), the water content (ppm) of the resin composition, and the degree of starch aggregation in the resin composition were confirmed in Example 1 and Comparative Examples 1 and 2 described above. MFR of 4 to 6 was generally considered good, and anything else was considered poor. A moisture content of 500 to 1000 ppm was considered generally good, and anything else was considered poor. The agglomeration of starch was determined by visually observing the resin composition sent from the cutting section 110 that was stretched into a flat shape by hot pressing at 170° C. to see if aggregation of starch was observed. For reference, the sheet on the left in FIG. 7 is a specification in which starch aggregation is not observed, and the right sheet is a specification in which starch aggregation is observed.
上述したＡ，Ｂ，Ｃ，Ｄの組成、ＭＦＲ、水分、および澱粉凝集の確認結果を表１に示す。 Table 1 shows the confirmation results of the composition, MFR, moisture, and starch aggregation of A, B, C, and D mentioned above.
＜澱粉凝集＞
○：観察されない。
<Starch aggregation>
○: Not observed.
△：多くはないが観察される。 △: Not much, but observed.
×：若干多く観察される。 ×: Slightly more observed.
××：多く観察される。 XX: Often observed.
×××：非常に多く観察され、凝集過多である。 ×××: Very much observed, excessive aggregation.
＜ペレット着色透過性＞
○：着色が非常に少なく、透過性も良好である。
<Pellet coloring transparency>
◯: Very little coloration and good transparency.
△：凝集が観察される分、着色が若干観察され、透過性も「〇」と比較して劣化している。 Δ: Some coloring was observed as aggregation was observed, and the transmittance was also deteriorated compared to “〇”.
×：着色の度合いが強く、透過性が低い。 ×: Strong degree of coloring and low transparency.
××：着色の度合いが非常に強く、透過性が非常に低い。 XX: The degree of coloring is very strong and the transparency is very low.
×××：ほぼ完全に着色し、不透明である。 ×××: Almost completely colored and opaque.
表１に示すように比較例１では上述した材料の二軸混練装置１００における食い込みが不良となり、米粉のアルファ化が不足して材料の凝集が解消せず、不均一な状態のままとなった。また、比較例１では、炭化および熱による分解で生成水の発生が多く、水分の安定的な計測ができず、十分に組成物を乾燥させることができなかった。 As shown in Table 1, in Comparative Example 1, the above-mentioned material was poorly penetrated by the biaxial kneading device 100, and the rice flour was not sufficiently gelatinized and the agglomeration of the material was not resolved, resulting in a non-uniform state. . Furthermore, in Comparative Example 1, a large amount of water was generated due to carbonization and thermal decomposition, making it impossible to stably measure the water content and making it impossible to sufficiently dry the composition.
比較例２では、蒸留水を加えることでＭＦＲが比較的高くなった。また、比較例２におけるＭＦＲの計測時には混練不十分の樹脂成分のみが流出し、熱流動が不安定となっていた。また、図８からも明らかなとおり、比較例２は、凝集過多である。また、比較例３ではＭＦＲがおおむね良好であったものの、水分が多く、澱粉の凝集も比較例１、２に比べれば少ないものの、観察された。また、図８からも明らかなとおり、比較例４は、比較例１、２、３と比較して凝集が少ないが、凝集がある分、白くなる箇所が増え、結果的に透明性も劣化している。 In Comparative Example 2, the MFR was relatively high by adding distilled water. Further, when measuring the MFR in Comparative Example 2, only the insufficiently kneaded resin component flowed out, making the thermal fluidity unstable. Moreover, as is clear from FIG. 8, Comparative Example 2 shows excessive aggregation. Furthermore, although MFR was generally good in Comparative Example 3, water content was high and starch aggregation was observed, although less than in Comparative Examples 1 and 2. Furthermore, as is clear from FIG. 8, Comparative Example 4 has less agglomeration than Comparative Examples 1, 2, and 3, but as a result of the aggregation, the number of white areas increases, and as a result, the transparency deteriorates. ing.
実施例１はＭＦＲおよび水分が良好と考える範囲内に入っており、澱粉の凝集も観察されなかったことから、本実施形態に係る方法により製造した米含有樹脂組成物が良好な仕様となっていることを確認できた。 In Example 1, the MFR and moisture were within the range considered to be good, and no starch aggregation was observed, indicating that the rice-containing resin composition produced by the method according to the present embodiment had good specifications. I was able to confirm that there was.
なお、本発明は上述した実施形態にのみ限定されず、特許請求の範囲において種々の変更が可能である。 Note that the present invention is not limited only to the embodiments described above, and various changes can be made within the scope of the claims.
１００ 二軸混練装置（米含有樹脂組成物の製造装置）、
１０ 第１収容部、
２０ 投入部、
３０ 回転部、
３１ 回転部材（第１スクリュー）、
３２ 回転部材（第１パドル）、
３３ 回転部材（第２スクリュー）、
３４ 回転部材（第２パドル）、
３５ 回転部材（第４スクリュー）、
４１ 回転部材（第６スクリュー）、
４２ 回転部材（第７スクリュー）、
５０ 脱水部、
５１ スクリュー（第３スクリュー）、
５２ 第２収容部、
６０ 第１脱気部、
６１ スクリュー（第５スクリュー）、
６２ 第３収容部、
７０ 第２脱気部、
７１ スクリュー（第８スクリュー）、
７２ 第４収容部、
Ｓ１ 第１収容空間、
Ｓ２ 第２収容空間、
Ｓ３ 第３収容空間、
Ｓ４ 第４収容空間、
Ｘ 長手方向、
Ｙ 幅方向（回転軸と交差する方向）。
100 Twin-screw kneading device (manufacturing device for rice-containing resin composition),
10 first storage section,
20 Input section,
30 rotating part,
31 Rotating member (first screw),
32 rotating member (first paddle),
33 Rotating member (second screw),
34 rotating member (second paddle),
35 rotating member (fourth screw),
41 Rotating member (sixth screw),
42 Rotating member (7th screw),
50 dehydration section,
51 screw (third screw),
52 second storage section,
60 first degassing section,
61 screw (fifth screw),
62 Third storage section,
70 second degassing section,
71 screw (8th screw),
72 Fourth storage section,
S1 first accommodation space,
S2 second accommodation space,
S3 third accommodation space,
S4 fourth accommodation space,
X longitudinal direction,
Y Width direction (direction intersecting the rotation axis).
Claims (6)
前記混練が、二軸混練装置によって行われ、
前記二軸混練装置が、少なくとも２つの脱気部を有する、米含有樹脂組成物の製造方法。 The method includes kneading air-dried rice flour and a material containing resin (excluding cellulose nanofibers) in the presence of input water,
The kneading is performed by a twin-screw kneading device,
A method for producing a rice-containing resin composition, wherein the twin-screw kneading device has at least two degassing sections.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2022147029A JP7442218B2 (en) | 2020-12-25 | 2022-09-15 | Method for producing rice-containing resin composition and twin-screw kneading device |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2022554745A JP7191435B2 (en) | 2020-12-25 | 2020-12-25 | Method for producing rice-containing resin composition and twin-screw kneading device |
| PCT/JP2020/048869 WO2022137548A1 (en) | 2020-12-25 | 2020-12-25 | Method for producing rice-containing resin composition and twin-screw kneading device |
| JP2022147029A JP7442218B2 (en) | 2020-12-25 | 2022-09-15 | Method for producing rice-containing resin composition and twin-screw kneading device |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2022554745A Division JP7191435B2 (en) | 2020-12-25 | 2020-12-25 | Method for producing rice-containing resin composition and twin-screw kneading device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2022174240A JP2022174240A (en) | 2022-11-22 |
| JP7442218B2 true JP7442218B2 (en) | 2024-03-04 |
Family
ID=82158009
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2022554745A Active JP7191435B2 (en) | 2020-12-25 | 2020-12-25 | Method for producing rice-containing resin composition and twin-screw kneading device |
| JP2022147029A Active JP7442218B2 (en) | 2020-12-25 | 2022-09-15 | Method for producing rice-containing resin composition and twin-screw kneading device |
| JP2022191220A Active JP7442223B2 (en) | 2020-12-25 | 2022-11-30 | Method for producing rice-containing resin composition and twin-screw kneading device |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2022554745A Active JP7191435B2 (en) | 2020-12-25 | 2020-12-25 | Method for producing rice-containing resin composition and twin-screw kneading device |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2022191220A Active JP7442223B2 (en) | 2020-12-25 | 2022-11-30 | Method for producing rice-containing resin composition and twin-screw kneading device |
Country Status (4)
| Country | Link |
|---|---|
| JP (3) | JP7191435B2 (en) |
| CN (1) | CN116723890A (en) |
| BR (1) | BR112023012664A2 (en) |
| WO (1) | WO2022137548A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7371978B1 (en) | 2022-12-27 | 2023-10-31 | 株式会社バイオマスレジンホールディングス | biomass masterbatch |
| CN117582843B (en) * | 2024-01-18 | 2024-04-02 | 回头客食品集团股份有限公司 | Stirring mixing equipment for raw material processing |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005087857A1 (en) | 2004-03-10 | 2005-09-22 | Agri Future Joetsu Co., Ltd. | Starch-blended resin composition, molding thereof and process for producing the same |
| JP2015065829A (en) | 2013-09-26 | 2015-04-13 | 株式会社白石バイオマス | Rice bran film and manufacturing method thereof |
| JP2016064501A (en) | 2014-05-22 | 2016-04-28 | 国立大学法人九州工業大学 | Method for producing biomass nanofibers and method for producing biomass nanofiber-polymeric resin composite |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5856818A (en) * | 1981-09-30 | 1983-04-04 | Unitika Ltd | Production of glass fiber reinforced thermoplastic resin |
| JPS59101318A (en) * | 1982-11-30 | 1984-06-11 | Unitika Ltd | Manufacture of glass fiber reinforced thermoplastic resin |
| US6176915B1 (en) * | 1995-04-14 | 2001-01-23 | Standard Starch, L.L.C. | Sorghum meal-based biodegradable formulations, shaped products made therefrom, and methods of making said shaped products |
| JP2001162671A (en) * | 1999-12-09 | 2001-06-19 | Hitachi Zosen Corp | Twin-screw extruder for recycled resin |
| JP4279975B2 (en) * | 2000-05-16 | 2009-06-17 | 株式会社日本製鋼所 | Desolvation method by twin screw dewatering extruder and twin screw dewatering extruder |
| JP4746288B2 (en) * | 2004-07-09 | 2011-08-10 | アグリフューチャー・じょうえつ株式会社 | Method for producing starch-containing resin composition |
| JP4448510B2 (en) * | 2006-12-26 | 2010-04-14 | 株式会社日本製鋼所 | Waste plastic processing equipment |
| JP5832733B2 (en) * | 2010-09-17 | 2015-12-16 | 富士フイルム株式会社 | Production method of polyester film |
| JP2013006171A (en) * | 2011-05-20 | 2013-01-10 | Nitto Denko Corp | Kneading machine |
| US10434483B2 (en) * | 2017-02-15 | 2019-10-08 | Wenger Manufacturing Inc. | High thermal transfer hollow core extrusion screw assembly |
| BR112019015212A2 (en) * | 2017-06-01 | 2020-03-24 | Wenger Manufacturing Inc. | SPECIFIC HIGH ENERGY EXTRUSION SCREW ASSEMBLY |
| JP6750824B1 (en) * | 2020-03-19 | 2020-09-02 | 正雄 王 | Composition of biodegradable plant fiber raw material grain and method for producing the same |
-
2020
- 2020-12-25 WO PCT/JP2020/048869 patent/WO2022137548A1/en active Application Filing
- 2020-12-25 CN CN202080107680.0A patent/CN116723890A/en active Pending
- 2020-12-25 BR BR112023012664A patent/BR112023012664A2/en unknown
- 2020-12-25 JP JP2022554745A patent/JP7191435B2/en active Active
-
2022
- 2022-09-15 JP JP2022147029A patent/JP7442218B2/en active Active
- 2022-11-30 JP JP2022191220A patent/JP7442223B2/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005087857A1 (en) | 2004-03-10 | 2005-09-22 | Agri Future Joetsu Co., Ltd. | Starch-blended resin composition, molding thereof and process for producing the same |
| JP2015065829A (en) | 2013-09-26 | 2015-04-13 | 株式会社白石バイオマス | Rice bran film and manufacturing method thereof |
| JP2016064501A (en) | 2014-05-22 | 2016-04-28 | 国立大学法人九州工業大学 | Method for producing biomass nanofibers and method for producing biomass nanofiber-polymeric resin composite |
Also Published As
| Publication number | Publication date |
|---|---|
| JP7191435B2 (en) | 2022-12-19 |
| JP2023014217A (en) | 2023-01-26 |
| WO2022137548A1 (en) | 2022-06-30 |
| JPWO2022137548A1 (en) | 2022-06-30 |
| BR112023012664A2 (en) | 2023-10-03 |
| CN116723890A (en) | 2023-09-08 |
| JP2022174240A (en) | 2022-11-22 |
| JP7442223B2 (en) | 2024-03-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP7442218B2 (en) | Method for producing rice-containing resin composition and twin-screw kneading device | |
| RU2457223C2 (en) | Method of producing nanoparticles from biopolymer | |
| US5525281A (en) | Method for preparing biodegradable films from plant-based raw materials | |
| JP6955774B2 (en) | Hydrophobic thermoplastic starch composite material and its manufacturing method | |
| US20080036115A1 (en) | Starch Resin Composition, Molded Product Using the Same and Method for Producing the Same | |
| JPS6257491B2 (en) | ||
| Ou et al. | Effects of ionic liquid on the rheological properties of wood flour/high density polyethylene composites | |
| JP3816282B2 (en) | Compound manufacturing method using biaxial continuous kneader | |
| TW201733764A (en) | Process and apparatus for manufacture of processable polyvinyl alcohol | |
| JP4846861B2 (en) | Extruder and biodegradable foamed material manufacturing method using the same | |
| JP7371978B1 (en) | biomass masterbatch | |
| JP7420431B2 (en) | Starch-containing resin composition, molded product, and method for adjusting biodegradation rate of starch-containing resin composition | |
| JP2003531750A (en) | Twin screw extruder and method for treating wood fiber | |
| JP2024004910A (en) | Method for producing biomass material-containing resin composition and method for producing molded article | |
| JP2008023724A (en) | Pellet manufacturing method | |
| JP2002225011A (en) | Woody composition for molding and its manufacturing method | |
| JPS61266222A (en) | Extrusion molding and device therefor | |
| WO2023095762A1 (en) | Method for producing mixed composition | |
| JP4446352B2 (en) | Method for producing molding material mainly composed of paper fiber | |
| JP2011184520A (en) | Method for producing cellulose-based resin composition | |
| US20210094217A1 (en) | Device and method for extruding plastic | |
| FR2791603A1 (en) | Water-resistant biodegradable composite material useful for making containers comprises a core of thermoplastic starch and a shell of a biodegradable polymer having a low melting point and a high viscosity | |
| CN207874805U (en) | A kind of plastics-production double screw extruder reducing bubble | |
| JP2008023721A (en) | Pellet manufacturing method | |
| JP2022053312A (en) | Film for bag containing bamboo powder and method for producing the same, and bag and method for producing the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20220916 |
|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20230804 |
|
| A871 | Explanation of circumstances concerning accelerated examination |
Free format text: JAPANESE INTERMEDIATE CODE: A871 Effective date: 20231004 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20231205 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20231212 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20240130 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20240213 |
|
| R150 | Certificate of patent or registration of utility model |
Ref document number: 7442218 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313113 |