JPH0517003B2 - - Google Patents
Info
- Publication number
- JPH0517003B2 JPH0517003B2 JP18424488A JP18424488A JPH0517003B2 JP H0517003 B2 JPH0517003 B2 JP H0517003B2 JP 18424488 A JP18424488 A JP 18424488A JP 18424488 A JP18424488 A JP 18424488A JP H0517003 B2 JPH0517003 B2 JP H0517003B2
- Authority
- JP
- Japan
- Prior art keywords
- weight
- parts
- board
- waste
- resins
- 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.)
- Expired - Lifetime
Links
- 239000002699 waste material Substances 0.000 claims description 29
- 238000004519 manufacturing process Methods 0.000 claims description 15
- 239000012778 molding material Substances 0.000 claims description 10
- 238000000465 moulding Methods 0.000 claims description 10
- -1 pulp Substances 0.000 claims description 8
- 229920005989 resin Polymers 0.000 claims description 8
- 239000011347 resin Substances 0.000 claims description 8
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 4
- 229920001971 elastomer Polymers 0.000 claims description 4
- 239000005060 rubber Substances 0.000 claims description 4
- 239000005995 Aluminium silicate Substances 0.000 claims description 3
- 239000004698 Polyethylene Substances 0.000 claims description 3
- 239000004743 Polypropylene Substances 0.000 claims description 3
- 235000012211 aluminium silicate Nutrition 0.000 claims description 3
- 229920003180 amino resin Polymers 0.000 claims description 3
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 claims description 3
- 239000007799 cork Substances 0.000 claims description 3
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 239000005038 ethylene vinyl acetate Substances 0.000 claims description 3
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 3
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 229920005862 polyol Polymers 0.000 claims description 3
- 150000003077 polyols Chemical class 0.000 claims description 3
- 229920001155 polypropylene Polymers 0.000 claims description 3
- 229920002803 thermoplastic polyurethane Polymers 0.000 claims description 3
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 2
- 229920003048 styrene butadiene rubber Polymers 0.000 claims description 2
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 claims 1
- 239000000463 material Substances 0.000 description 19
- 239000002023 wood Substances 0.000 description 10
- 239000004800 polyvinyl chloride Substances 0.000 description 9
- 229920000915 polyvinyl chloride Polymers 0.000 description 9
- 230000000704 physical effect Effects 0.000 description 7
- 229920003002 synthetic resin Polymers 0.000 description 5
- 239000000057 synthetic resin Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- RSWGJHLUYNHPMX-UHFFFAOYSA-N 1,4a-dimethyl-7-propan-2-yl-2,3,4,4b,5,6,10,10a-octahydrophenanthrene-1-carboxylic acid Chemical compound C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 235000019270 ammonium chloride Nutrition 0.000 description 1
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
Landscapes
- Chemical And Physical Treatments For Wood And The Like (AREA)
- Manufacture Of Wood Veneers (AREA)
- Finished Plywoods (AREA)
Description
〔産業上の利用分野〕
本発明は、単板、特に集成単板を製造するに当
たり、スライサーの刃による切り込み時の木材の
欠けを防止して良好な切り込みを行えるように、
積層フリツチの側面に貼着して用いる単板製造に
用いる捨板。
〔従来の技術〕
単板、特に集成単板を製造するのに、従来は、
捨板を天然の木材、例えば、ラワン材或いは各種
内地材を薄くスライスして製作し、これを積層フ
リツチの側面に貼着していたのである。
ところが、こうした天然の木材は、これを捨板
に使用するべく１乃至３ミリ前後の薄板にスライ
スして積層フリツチの側面に貼着して用いても、
節はそのまま残るので、スライサーの刃がこの節
に当たり、刃零れを起す問題があると共に捨板、
即ち、単なる消耗材であるところから、これに天
然材を消費することは将来コスト的に不安であつ
た。
そこで、捨板の素材として天然材に代わる合成
樹脂板が提案され、既に市販されている。
この捨板は、ポリ塩化ビニールを素材とするも
ので、その物性は、硬度（JISシヨアーＡ）が96、
抗張力が130Kg／cm2、伸びが110％、引裂強度が70
Kgの値を取るものであつた。
ところが、このポリ塩化ビニール板は、後に比
較例として表−１に示すように、先ず、積層フリ
ツチに貼着するに際し、一般の樹脂系接着剤を用
いると接着性が悪いという問題があるため、接着
性の良いフイルムを貼着する等の特殊な表面加工
を施さなければならないこと、そして、比較的硬
いためにスライサーが切削作用したときの切れが
悪いこと、即ち、切削適性と刃物適性がもう一つ
好ましくないこと等の問題が残つていた。
〔発明が解決しようとする課題〕
そこで、本発明者は、捨板として従来のポリ塩
化ビニールに代わる素材として、最も可能性の高
い合成樹脂について研究開発を行い、各種素材に
ついて多くの切削実験を行つたところ、切削適正
と刃物適正が最も顕著に影響を受けるのが、捨板
の硬度、抗張力及び引裂強度であることを突き止
めた。
即ち、実験の結果、最も好ましい物性として、
硬度（JISシヨアーＡ）が70乃至90、抗張力が50
乃至100Kg／cm2、引裂強度が５乃至20Kgの値が得
られた。
即ち、硬度が比較的低く、抗張力と引裂強度が
比較的小さくなければならないのである。
そこで、本発明者は、かかる知見に基づき、１
乃至３ミリメートル程度の薄板にする必要のある
捨板として使用でき、且つ、木材に対する接着性
が良くて上記硬度、抗張力と引裂強度について最
適の数値が得られるようにポリ塩化ビニール板を
改良しようしたが、ポリ塩化ビニール板を上記物
性をもつようにすることが出来なかつた。
〔課題を解決するための手段〕
本発明にかかる単板製造に用いる捨板は、上記
課題を解決するために、請求項１において次の手
段を講じた。
即ち、単板製造に用いる捨板を、ポリオール、
エポキシ系樹脂、アミノ系樹脂、ウレタン系樹
脂、スチレン・ブタジエン・ラバー系樹脂、エチ
レン酢酸ビニル系樹脂の何れか１つ又は複数の組
み合わせからなる成形主材を40重量部乃至60重量
部と、炭酸カルシウム、パルプ、ゴム、コルク、
ポリエチレン、ポリプロピレン、カオリンの何れ
か１つ又は複数の組み合わせからなる成形補助材
を40重量部乃至60重量部と、前記成形主材を硬化
させる硬化剤を５乃至15重量部とを主体として、
厚みが0.8乃至５ミリメートル、硬度（JISシヨア
ーＡ）が70乃至90、抗張力が50乃至100Kg／cm2、
伸びが50乃至200％、引裂強度が５乃至20Kgの値
を取るように板状体に構成したのである。
そして、請求項２において、上記板状体に所定
間隔で多数の小孔が形成されるようにしたもので
ある。
本発明に言う単板は、一つの木材をスライスし
て得る単板のみならず、モザイク模様等を作り出
すべくブロツクを積むところの積層フリツチによ
り得られる集成単板をも含む。
〔作用〕
上記構成の単板製造に用いる捨板の硬度を、合
成樹脂の成形主材をこれに添加される成形補助材
とを重量部で略同等に分けるという考えを導入す
ることによつて、本発明者の知見である捨板とし
ての好適物性、即ち、硬度をポリ塩化ビニール板
に比べて大きく低下させ、柔軟度はそのままに抗
張力と引裂強度を大幅に小さくすることができた
ので、素材としては板状体を形成できながら所謂
脆さを備えて、これを、積層フリツチに貼着して
スライサーにかけたところ、切削適正と刃物適正
とが非常に良好となつたのである。
そして、成形主材と成形補助材とを重量部で略
同等にしたことによつて、成形主材を構成する合
成樹脂の木材に対する接着性を改善できて、一般
の樹脂系接着剤でも容易に貼着できて、従来のよ
うにスライサーにかける迄によく剥がれてしまう
ということがない。
〔第１実施例〕
以下、本発明の単板製造に用いる捨板の実施例
について、第１図及び第３図に基づき説明する。
第１図は、厚さ１ミリメートルに構成した捨板
１を示し、これには、略20ミリメートル間隔で直
径略１ミリメートルの小孔２が横方向で交互に穿
孔されている。この捨板１は、成形主材としてポ
リオールを50重量部、成形補助材として炭酸カル
シウムを25重量部とカオリンを25重量部で合計50
重量部、ウレタン硬化剤を10重量部を主体とし
て、発泡させて後にスライスすると共にパンチヤ
ーにて穿孔することによつて構成している。
この捨板１の物性を実験したところ、硬度
（JISシヨアーＡ）が87、抗張力が66Kg／cm2、伸び
70％、引裂強度が14Kgという値であつた。
この捨板１と、従来のラワン材、ポリ塩化ビニ
ールの捨板との性能を対比した結果を次の表−１
に示す。
[Industrial Field of Application] The present invention provides a method for preventing wood from chipping when cutting with a slicer blade and making good cuts when manufacturing veneers, especially laminated veneers.
A scrap board used in the manufacture of veneers that is attached to the side of a laminated fritsch. [Prior Art] Conventionally, in order to manufacture veneers, especially laminated veneers,
The waste boards were made by thinly slicing natural wood, such as lauan wood or various inland materials, and were attached to the sides of the laminated fritches. However, even if such natural wood is sliced into thin sheets of around 1 to 3 mm and attached to the side of a laminated fritsch for use as waste boards,
Since the knots remain, there is a problem that the slicer blade hits these knots and causes the blade to spill, as well as scraping the board.
That is, since it is a mere consumable material, consuming natural materials for it was a concern in terms of future costs. Therefore, synthetic resin boards have been proposed to replace natural materials as the material for waste boards, and are already on the market. This waste board is made of polyvinyl chloride, and its physical properties include a hardness (JIS Shore A) of 96,
Tensile strength is 130Kg/cm 2 , elongation is 110%, tear strength is 70
It took the value of kg. However, as shown later in Table 1 as a comparative example, this polyvinyl chloride board had the problem of poor adhesion when a general resin adhesive was used to attach it to the laminated fritches. Special surface treatment is required, such as applying a film with good adhesive properties, and because the slicer is relatively hard, it does not cut easily when the slicer performs cutting action. There remained one undesirable problem. [Problem to be solved by the invention] Therefore, the present inventor conducted research and development on a synthetic resin that has the highest potential as a material to replace conventional polyvinyl chloride as a waste board, and conducted many cutting experiments on various materials. As a result, we found that the hardness, tensile strength, and tear strength of the scrap board most significantly affect the suitability of cutting and the suitability of the blade. That is, as a result of experiments, the most desirable physical properties are:
Hardness (JIS Shore A) is 70 to 90, tensile strength is 50
Values of tear strength of 5 to 20 Kg were obtained. That is, the hardness must be relatively low, and the tensile strength and tear strength must be relatively low. Therefore, based on this knowledge, the present inventors
We tried to improve the polyvinyl chloride board so that it can be used as a scrap board that needs to be made into a thin board of about 3 mm, has good adhesion to wood, and can obtain the optimal values for the above-mentioned hardness, tensile strength, and tear strength. However, it has not been possible to make a polyvinyl chloride board have the above-mentioned physical properties. [Means for Solving the Problems] In order to solve the above-mentioned problems, the waste board used for manufacturing a veneer according to the present invention takes the following measures in claim 1. That is, the waste board used for veneer production is treated with polyol,
40 to 60 parts by weight of a molding main material made of any one or a combination of epoxy resin, amino resin, urethane resin, styrene/butadiene/rubber resin, or ethylene vinyl acetate resin, and carbonic acid. Calcium, pulp, rubber, cork,
Mainly consisting of 40 to 60 parts by weight of a molding aid made of any one or a combination of polyethylene, polypropylene, and kaolin, and 5 to 15 parts by weight of a curing agent for curing the main molding material,
The thickness is 0.8 to 5 mm, the hardness (JIS Shore A) is 70 to 90, the tensile strength is 50 to 100 Kg/cm 2 ,
The plate was constructed so that the elongation was 50 to 200% and the tear strength was 5 to 20 kg. According to a second aspect of the present invention, a large number of small holes are formed in the plate-like body at predetermined intervals. The veneer referred to in the present invention includes not only a veneer obtained by slicing a piece of wood, but also a laminated veneer obtained by stacking blocks to create a mosaic pattern or the like. [Function] By introducing the idea that the hardness of the waste board used in the production of the veneer with the above structure is divided into the main molding material of synthetic resin and the molding auxiliary material added to it approximately equally by weight part. According to the findings of the present inventors, the suitable physical properties as a waste board, that is, the hardness was greatly reduced compared to the polyvinyl chloride board, and the tensile strength and tear strength were significantly reduced while maintaining the flexibility. Although the material can be formed into a plate-like material, it has so-called brittleness, and when it is pasted onto a laminated frit and run through a slicer, it has excellent cutting suitability and cutter suitability. By making the main molding material and the molding auxiliary material approximately equal in weight parts, the adhesion of the synthetic resin that makes up the main molding material to wood can be improved, making it easy to use with general resin adhesives. It can be pasted, and unlike conventional products, it doesn't come off until you put it in a slicer. [First Example] Hereinafter, an example of a waste board used for manufacturing a veneer according to the present invention will be described based on FIGS. 1 and 3. FIG. 1 shows a scrap board 1 having a thickness of 1 mm, in which small holes 2 of approximately 1 mm in diameter are perforated alternately in the lateral direction at approximately 20 mm intervals. This waste board 1 contains 50 parts by weight of polyol as the main molding material, 25 parts by weight of calcium carbonate and 25 parts by weight of kaolin as molding auxiliary materials, and a total of 50 parts by weight.
10 parts by weight of a urethane curing agent as a main component are foamed and then sliced and perforated with a puncher. When the physical properties of this scrap board 1 were tested, the hardness (JIS Shore A) was 87, the tensile strength was 66 kg/cm 2 , and the elongation was 87.
70%, and the tear strength was 14 kg. Table 1 below shows the results of comparing the performance of this waste board 1 with conventional lauan material and polyvinyl chloride waste boards.
Shown below.
以下、本発明の単板製造に用いる捨板の実施例
について以下説明するが、捨板の構造は上記第１
実施例と実質的に同じであるので、図面は省略す
る。
捨板は、厚さ0.8ミリメートルに構成し、これ
には、略15ミリメートル間隔で直径略１ミリメー
トルの小孔が穿孔されている。この捨板は、成形
主材としてアミノ系樹脂を30重量部、、スチレ
ン・ブタジエン・ラバー系樹脂を５重量部、エチ
レン酢酸ビニル系樹脂を５重量部の合計40重量部
に対し、成形補助材としてゴムを30重量部とコル
クを重量部で合計60重量部、そして、硬化剤とし
て塩化アンモニウムを５重量部を主体として、発
泡させて後にスライスすると共にパンチヤーにて
穿孔することによつて構成している。
この捨板の物性を実験したところ、硬度（JIS
シヨアーＡ）が70、抗張力が50Kg／cm2、伸びが50
％、引裂強度が５Kgという値であつた。上記表−
１と同様に性能比較を表−２として以下に示す。
Examples of the waste board used for manufacturing veneers of the present invention will be described below, but the structure of the waste board is
Since it is substantially the same as the embodiment, the drawings are omitted. The scrap board has a thickness of 0.8 mm, and small holes with a diameter of approximately 1 mm are perforated at intervals of approximately 15 mm. This waste board contains 30 parts by weight of amino resin as the main molding material, 5 parts by weight of styrene-butadiene-rubber resin, and 5 parts by weight of ethylene-vinyl acetate resin, and 40 parts by weight as molding auxiliary material. The composition consists of 30 parts by weight of rubber, 60 parts by weight of cork in total, and 5 parts by weight of ammonium chloride as a hardening agent, which are foamed and then sliced and perforated with a puncher. ing. When testing the physical properties of this waste board, we found that the hardness (JIS
Shore A) is 70, tensile strength is 50Kg/cm 2 , elongation is 50
%, and the tear strength was 5 kg. Above table-
Similar to 1, performance comparison is shown below as Table 2.
【表】【table】
以下、本発明の単板製造に用いる捨板の第３実
施例について以下説明するが、捨板の構造は上記
第１実施例と実質的に同じであるので、図面は省
略する。
捨板は、厚さ５ミリメートルに構成し、これに
は、略25ミリメートル間隔で直径略１ミリメート
ルの小孔が穿孔されている。この捨板は、成形主
材としてエポキシ系樹脂を20重量部とウレタン系
樹脂を40重量部の合計60重量部、成形補助材とし
てパルプを30重量部、ポリエチレンを５重量部、
ポリプロピレンを５重量部で合計40重量部、そし
て、硬化剤としてアミノ系硬化剤を15重量部を主
体として、発泡させて後にスライスすると共にパ
ンチヤーにて穿孔することによつて構成してい
る。
この捨板の物性を実験したところ、硬度（JIS
シヨアーＡ）が90、抗張力が100Kg／cm2、伸びが
200％、引裂強度が20Kgという値であつた。
この捨板と、従来のラワン材、ポリ塩化ビニー
ルの捨板との性能を対比した結果を次の表−３に
示す。
A third embodiment of the waste board used for manufacturing the veneer of the present invention will be described below, but since the structure of the waste board is substantially the same as that of the first embodiment, the drawings will be omitted. The scrap board was constructed to have a thickness of 5 mm, and small holes with a diameter of approximately 1 mm were perforated at intervals of approximately 25 mm. This waste board contains 20 parts by weight of epoxy resin and 40 parts by weight of urethane resin as the main molding material, 60 parts by weight in total, 30 parts by weight of pulp and 5 parts by weight of polyethylene as molding auxiliary materials.
It is composed mainly of 5 parts by weight of polypropylene (40 parts by weight in total) and 15 parts by weight of an amino curing agent as a curing agent, which is foamed and then sliced and perforated with a puncher. When testing the physical properties of this waste board, we found that the hardness (JIS
Shore A) is 90, tensile strength is 100Kg/cm 2 , elongation is
200%, and the tear strength was 20 kg. The results of comparing the performance of this waste board with conventional waste boards made of lauan material and polyvinyl chloride are shown in Table 3 below.
本発明にかかる単板製造に用いる捨板によれ
ば、請求項１の構成によつて、単板を製造するに
当たり、スライサーの刃による切り込みの時の木
材の欠けを防止しできるのみならず、その切削適
性と刃物適性が、従来のポリ塩化ビニール製の捨
板に比べて極めて良好であり、単板製造の作業性
の向上を図ることができる効果を奏するのであ
る。
しかも、上記切削適性と刃物適性を改善する手
段の成形主材と成形補助材を略均等とする解決手
段が同時に特定の合成樹脂からなる成形主材の木
材に対する接着性を改善することとなつて、積層
フイリツチに対する接着性を向上させることがで
きて作業途中で剥離したりすることが殆どなくな
り、スライス作業を確実に行うことができるとい
う利点がある。
また、請求項２に記載の構成によれば、その小
孔をして接着剤のガス抜き、木材の通気性を確保
でき、良質の単板をスライスできる効果を奏する
のである。
According to the waste board used for manufacturing veneers according to the present invention, with the structure of claim 1, when manufacturing veneers, it is possible not only to prevent the wood from chipping when cutting with a slicer blade, but also to Its cutting suitability and cutter suitability are extremely good compared to conventional polyvinyl chloride waste boards, and it has the effect of improving workability in veneer production. Moreover, the solution of making the main molding material and the molding auxiliary material approximately equal as a means of improving cutting suitability and cutter suitability also improves the adhesion of the molding main material made of a specific synthetic resin to wood. This has the advantage that the adhesion to the laminated film can be improved, so that peeling during the operation is almost eliminated, and the slicing operation can be performed reliably. Further, according to the structure described in claim 2, the small holes can ensure degassing of the adhesive and air permeability of the wood, and it is possible to slice high-quality veneers.
図面は、本発明にかかる単板製造に用いる捨板
を示し、第１図は、捨板の全体斜視図、第２図
は、積層フイリツチに貼着した状態を示す斜視
図、第３図、スライスされた単板の斜視図を示
す。
１……捨板、２……小孔、３……積層フリツ
チ、４……単板。
The drawings show a waste board used for manufacturing a veneer according to the present invention, FIG. 1 is an overall perspective view of the waste board, FIG. 2 is a perspective view showing a state in which it is attached to a laminated foil, FIG. A perspective view of a sliced veneer is shown. 1... Waste board, 2... Small hole, 3... Laminated fritsch, 4... Single board.
Claims (1)
脂、ウレタン系樹脂、スチレン・ブタジエン・ラ
バー系樹脂、エチレン酢酸ビニル系樹脂の何れか
１つ又は複数の組み合わせからなる成形主材を40
重量部乃至60重量部と、炭酸カルシウム、パル
プ、ゴム、コルク、ポリエチレン、ポリプロピレ
ン、カオリンの何れか１つ又は複数の組み合わせ
からなる成形補助材を40重量部乃至60重量部と、
前記成形主材を硬化させる硬化剤を５乃至15重量
部とを主体として、厚みが0.8乃至５ミリメート
ル、硬度（JISシヨアーＡ）が70乃至90、抗張力
が50乃至100Kg／cm2、伸びが50乃至200％、引裂強
度が５乃至20Kgの値を取るように板状体に構成さ
れた単板製造に用いる捨板。 ２ 上記板状体に所定間隔で多数の小孔が形成さ
れていることを特徴とする請求項１に記載の単板
製造に用いる捨板。[Scope of Claims] 1. A main molding material made of any one or a combination of polyols, epoxy resins, amino resins, urethane resins, styrene-butadiene-rubber resins, and ethylene-vinyl acetate resins.
40 parts by weight to 60 parts by weight of a molding aid consisting of any one or a combination of calcium carbonate, pulp, rubber, cork, polyethylene, polypropylene, kaolin,
Mainly containing 5 to 15 parts by weight of a curing agent for curing the main molding material, the thickness is 0.8 to 5 mm, the hardness (JIS Shore A) is 70 to 90, the tensile strength is 50 to 100 Kg/cm 2 , and the elongation is 50. Scrap board used in the production of veneer, configured into a plate-like body with a tear strength of 5 to 20 kg. 2. The waste board used for manufacturing a veneer according to claim 1, wherein a large number of small holes are formed in the plate-shaped body at predetermined intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18424488A JPH0232802A (en) | 1988-07-22 | 1988-07-22 | Waste plate used in veneer manufacture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18424488A JPH0232802A (en) | 1988-07-22 | 1988-07-22 | Waste plate used in veneer manufacture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0232802A JPH0232802A (en) | 1990-02-02 |
| JPH0517003B2 true JPH0517003B2 (en) | 1993-03-08 |
Family
ID=16149908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18424488A Granted JPH0232802A (en) | 1988-07-22 | 1988-07-22 | Waste plate used in veneer manufacture |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0232802A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4845303B2 (en) * | 2001-05-31 | 2011-12-28 | セイコーインスツル株式会社 | Pulse meter |
-
1988
- 1988-07-22 JP JP18424488A patent/JPH0232802A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0232802A (en) | 1990-02-02 |
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