JP2002211632A - Degradable foamed loose cushioning material - Google Patents
Degradable foamed loose cushioning materialInfo
- Publication number
- JP2002211632A JP2002211632A JP2001051212A JP2001051212A JP2002211632A JP 2002211632 A JP2002211632 A JP 2002211632A JP 2001051212 A JP2001051212 A JP 2001051212A JP 2001051212 A JP2001051212 A JP 2001051212A JP 2002211632 A JP2002211632 A JP 2002211632A
- Authority
- JP
- Japan
- Prior art keywords
- foamed
- cushioning material
- degradable
- decomposable
- resin
- 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.)
- Pending
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
- Y02W90/10—Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics
Landscapes
- Wrappers (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Biological Depolymerization Polymers (AREA)
- Buffer Packaging (AREA)
Abstract
(57)【要約】 （修正有）
【課題】プラスチックバラ状緩衝材において、高い分解
性を有するものを提供する。
【解決手段】分解性樹脂の主成分として澱粉、酢酸セル
ロース、ポリビニルアルコール、ポリプロピレンないし
脂肪族ポリエステルを使用し、補強剤としてセルロース
組織を用い、さらに分解性樹脂中にグリセリン、カオリ
ン、脂肪、タンパク質のいずれか、ないしはこれらの混
合体を５０〜５％、ポリエチレン２０〜５％を含有する
分解性発泡バラ状緩衝材。
(57) [Abstract] (with correction) [PROBLEMS] To provide a plastic loose cushioning material having high degradability. SOLUTION: Starch, cellulose acetate, polyvinyl alcohol, polypropylene or aliphatic polyester is used as a main component of a degradable resin, a cellulose tissue is used as a reinforcing agent, and glycerin, kaolin, fat and protein are contained in the degradable resin. A degradable foamed loose cushioning material containing 50 to 5% of any one or a mixture thereof and 20 to 5% of polyethylene.
Description
【０００１】[0001]
【産業上の利用分野】緩衝包装に用いる発泡バラ状緩衝
材であって、特に、使用後土中埋設などによって、自ら
が分解する分解性発泡バラ状緩衝材に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a foamed rose-shaped cushioning material used for cushioning packaging, and more particularly to a decomposable foamed rose-shaped cushioning material which is decomposed by itself after being buried in soil after use.
【０００２】[0002]
【従来の技術】個々に独立した形態を有する発泡バラ状
緩衝材は充填材、緩衝材として広く用いられている。2. Description of the Related Art Bubbles in a foamed form having independent shapes are widely used as fillers and cushioning materials.
【０００３】しかし、該発泡バラ状緩衝材の多くはポリ
スチレンや、ポリオレフィン系樹脂を素材としている。
そのため該発泡バラ状緩衝材は廃棄後、埋設されても永
久に腐らず、生態系に悪影響を及ぼすという問題点があ
った。また、これらの樹脂、特にポリスチレンは、食品
とともに燃えた場合、ダイオキシンを発生するため、焼
却処分もままならなかった。However, most of the foamed loose cushioning materials are made of polystyrene or polyolefin resin.
For this reason, there is a problem that the foamed rose-shaped buffer material does not rot permanently even if it is buried after being discarded, which adversely affects the ecosystem. In addition, when these resins, especially polystyrene, are burned with food, they generate dioxin, so that they cannot be incinerated.
【０００４】[0004]
【０００５】本発明の発泡バラ状緩衝材に用いる分解性
樹脂としては、澱粉などの分解性樹脂を用いることが好
ましい。しかし従来知られている分解性樹脂はバラ状緩
衝材を作った際に、その強度などに於いて、ポリエチレ
ンなどの非分解性樹脂に比べ物性的に格段に見劣りする
ものであった。[0005] As the degradable resin used in the foamed loose buffer material of the present invention, it is preferable to use a degradable resin such as starch. However, conventionally known decomposable resins are much inferior in physical properties as compared with non-decomposable resins such as polyethylene in terms of strength and the like when a rose-shaped buffer material is produced.
【０００６】[0006]
【０００７】上記分解性発泡バラ状緩衝材の分解性およ
び機械的強度を高め、、従来のポリエチレンなどを主原
料とした発泡バラ状緩衝材と同等の品質、作業性を有
し、なおかつ優れた分解性を有する発泡バラ状緩衝材を
提供する。発明者らは鋭意研究の末、澱粉を主成分とし
た、後述のような分解性樹脂、あるいは酢酸セルロース
に補強材を添加することにより、従来のポリエチレンな
どを主原料としたネット状発泡バラ状緩衝材と同等の品
質、作業性を有し、なおかつ優れた分解性を有する発泡
バラ状緩衝材を得ることができた。[0007] The decomposable foamed loose cushioning material is improved in decomposability and mechanical strength, and has the same quality and workability as a conventional foamed loose foamed cushioning material mainly made of polyethylene or the like. Provided is a foamed rose-shaped cushioning material having degradability. After extensive research, the inventors have added a reinforcing material to a degradable resin or cellulose acetate containing starch as a main component or cellulose acetate to form a net-like foamed rose made from conventional polyethylene or the like as a main raw material. A foamed rose-shaped buffer material having the same quality and workability as the buffer material and having excellent decomposability was able to be obtained.
【０００８】酢酸セルロースは、天然の高分子であるセ
ルロースを酢酸エステル化して得られるもので分解性樹
脂の中では比較的古くから知られている素材である。エ
ステル結合は、アルキル基−ＯＨとカルボキシル基−Ｃ
ＯＯＨが縮重合によって脱水し、−ＣＯＯ−の結合を生
じたものである。このエステル結合は、加水分解によっ
て容易にアルキル基とカルボキシル基に解離され、急速
に微生物なとによって分解される為分解性樹脂としての
性能は申し分ない。しかし酢酸セルロースにはそれ自体
の含水率が高いため発泡し易く、古くから知られている
分解性樹脂でありながら成形品にはあまり用いられては
いなかったが本発明発泡バラ状緩衝材に用いる樹脂とし
てはまさに好適である。またエステル結合が非常に強固
な結合であり、引っ張り、引き裂き等の強度に優れてい
ることはエステル結合を有する合成樹脂として有名なポ
リカーボネートが耐衝撃性を有する素材として多用され
ていることからも容易にわかろう。[0008] Cellulose acetate is obtained by subjecting cellulose, which is a natural polymer, to acetic esterification, and is a relatively well-known material among degradable resins. The ester bond is composed of an alkyl group -OH and a carboxyl group -C
OOH is dehydrated by polycondensation to form a -COO- bond. This ester bond is easily dissociated into an alkyl group and a carboxyl group by hydrolysis, and is rapidly decomposed by microorganisms, so that the performance as a degradable resin is satisfactory. However, cellulose acetate itself has a high water content, so it is easy to foam.Although it is a degradable resin that has been known for a long time, it has not been used much for molded articles, but is used for the foamed loose cushioning material of the present invention. It is just suitable as a resin. In addition, the fact that the ester bond is a very strong bond and has excellent strength such as pulling and tearing is easy because polycarbonate, which is famous as a synthetic resin having an ester bond, is widely used as a material having impact resistance. Let's see.
【０００９】また、本発明発泡バラ状緩衝材のもう１つ
の実施態様として澱粉を主生分としたものがあげられ
る。[0009] Another embodiment of the foamed rose-like buffer material of the present invention is one containing starch as a main ingredient.
【００１０】主成分として澱粉を用いた場合、高荷重が
かかった場合澱粉のみでは充分な強度が得られず復元
力、衝撃吸収能力が不十分な恐れがある。[0010] When starch is used as the main component, when a heavy load is applied, the starch alone cannot provide sufficient strength, and the restoring force and impact absorbing ability may be insufficient.
【００１１】このような場合には、樹脂自体の強度を高
めるものとして他の樹脂を加えることが好ましい。添加
する他の樹脂としては、ポリプロピレン、ポリビニルア
ルコール、脂肪族ポリエステル等が上げられる。特にポ
リビニルアルコール、脂肪族ポリエステルはそれ自体分
解性を有しているため好適である。これらの他の樹脂を
添加する量としては５〜５０％さらに好ましくは１５〜
３５％添加するのがよい。５％以下であれば、充分な強
度の向上が行われないし、５０％以上添加した場合、ポ
リプロピレンであれば分解性能に悪影響が生ずるし、ポ
リビニルアルコール、脂肪族ポリエステルであればこれ
以上入れても確かに強度は向上するが、コスト面などか
ら実用的でなくなるからである。このような場合は、い
たずらにポリビニルアルコール、あるいは脂肪族ポリエ
ステルの添加量を増やすより後述のような増強材を増や
すほうがよい。他の樹脂として、グリセリン、カオリ
ン、脂肪、タンパク質のいずれか、ないしはこれらの混
合体を５０ないし５％、好ましくは４５ないし２５％、
ポリエチレン２０ないし５％、好ましくは１５ないし７
％を添加しても、同様のことがいえる。In such a case, it is preferable to add another resin to increase the strength of the resin itself. Other resins to be added include polypropylene, polyvinyl alcohol, aliphatic polyester and the like. Particularly, polyvinyl alcohol and aliphatic polyester are preferable because they have decomposability themselves. The addition amount of these other resins is preferably 5 to 50%, more preferably 15 to 50%.
It is better to add 35%. If it is 5% or less, sufficient improvement in strength is not performed, and if it is added in 50% or more, the degradation performance will be adversely affected if it is polypropylene, and if it is added more than polyvinyl alcohol or aliphatic polyester. Certainly, the strength is improved, but it is not practical in terms of cost and the like. In such a case, it is better to increase the amount of the reinforcing material as described later than to increase the amount of polyvinyl alcohol or aliphatic polyester added unnecessarily. As another resin, glycerin, kaolin, fat, protein or a mixture thereof is 50 to 5%, preferably 45 to 25%,
20 to 5% of polyethylene, preferably 15 to 7
The same can be said of adding%.
【００１２】このような分解性樹脂を主原料とし、これ
に補強材を添加するわけである。この補強材としては繊
維質のものが好ましい。これには、例えば古紙の解繊品
や麻、ケナフ、ハガス等の天然性繊維、あるいは乳酸や
セルロース繊維等の分解性樹脂があげられる。これら補
強材の添加量としては８０ないし１０重量％、さらには
６５ないし２５重量％の範囲が好ましい。それ以上添加
するならば成形が困難となるし、それ以下の添加ならば
強度の向上に寄与しないからである。[0012] Such a decomposable resin is used as a main raw material, and a reinforcing material is added thereto. The reinforcing material is preferably a fibrous material. Examples of such fibers include waste paper defibrated products, natural fibers such as hemp, kenaf, and hagas, and decomposable resins such as lactic acid and cellulose fibers. The addition amount of these reinforcing materials is preferably in the range of 80 to 10% by weight, more preferably 65 to 25% by weight. This is because adding more than this will make molding difficult, and adding less than that will not contribute to improvement in strength.
【００１３】これらの素材を用いて作られるバラ状緩衝
材の形状であるが、形状自体は図１から図５に示すよう
な形状が有名で有るが、これ以外の形でも構わない。作
り易く、そしてなるべく個々の形がかさばり易い形状が
好ましい。The shape of the rosette-shaped cushioning material made from these materials is well-known, as shown in FIGS. 1 to 5, but other shapes are also acceptable. Shapes that are easy to make and, as much as possible, individual shapes are preferred.
【００１４】[0014]
【作用】個々に独立した形態を有する発泡バラ状緩衝材
は包装材、緩衝材として広く用いられている。しかし、
該発泡バラ状緩衝材の多くはポリスチレンや、ポリオレ
フィン系樹脂を素材としている。そのため該発泡バラ状
緩衝材は廃棄後、埋設されても永久に腐らず、生態系に
悪影響を及ぼすという問題点があった。また、これらの
樹脂、特にポリスチレンは、食品とともに燃えた場合、
ダイオキシンを発生するため、焼却処分もままならなか
った。発明者らは鋭意研究の末、澱粉を主成分とした、
先に述べたような分解性樹脂、あるいは酢酸セルロース
に補強材を加えることにより、従来のポリエチレンなど
を主原料とした発泡バラ状緩衝材と同等の品質、作業性
を有し、なおかつ優れた分解性を有する発泡バラ状緩衝
材を得ることができた。The foamed rose-shaped cushioning material having an independent form is widely used as a packaging material and a cushioning material. But,
Most of the foamed loose cushioning materials are made of polystyrene or polyolefin resin. For this reason, there is a problem that the foamed rose-shaped buffer material does not rot permanently even if it is buried after being discarded, which adversely affects the ecosystem. Also, these resins, especially polystyrene, when burned with food,
Dioxin was generated, and incineration did not remain. The inventors have made intensive research and made starch the main component.
By adding a reinforcing material to the degradable resin or cellulose acetate as described above, it has the same quality and workability as a conventional foamed cushioning material mainly made of polyethylene, etc., and has excellent decomposition. It was possible to obtain a foamed rose-shaped cushioning material having properties.
【００１５】[0015]
【効果】本発明発泡バラ状緩衝材は包装材、緩衝材とし
て広く用いられている従来のポリエチレンなどの合成樹
脂発泡バラ状緩衝材と同様の緩衝効果をもち、なおかつ
優れた分解性を有するものである。[Effect] The foamed cushioning material of the present invention has the same buffering effect as a conventional foamed synthetic resin cushioning material such as polyethylene widely used as a packaging material and cushioning material, and has excellent decomposability. It is.
【図１】 本発明発泡バラ状緩衝材を示す。FIG. 1 shows a foamed rose-shaped cushioning material of the present invention.
【図２】 本発明発泡バラ状緩衝材の第２の実施態様
を示す。FIG. 2 shows a second embodiment of the foamed loose cushioning material of the present invention.
【図３】 本発明発泡バラ状緩衝材の第３の実施態様
を示す。FIG. 3 shows a third embodiment of the foamed loose cushioning material of the present invention.
【図４】 本発明発泡バラ状緩衝材の第４の実施態様
を示す。FIG. 4 shows a fourth embodiment of the foamed loose cushioning material of the present invention.
【図５】 本発明発泡バラ状緩衝材の第５の実施態様
を示す。FIG. 5 shows a fifth embodiment of the foamed loose cushioning material of the present invention.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｃ０８Ｋ 5/053 Ｃ０８Ｋ 7/02 7/02 Ｃ０８Ｌ 23/04 Ｃ０８Ｌ 23/04 89/00 89/00 91/00 91/00 101/00 ＺＢＰ 101/00 ＺＢＰ Ｂ６５Ｄ 81/06 Ａ Ｆターム(参考） 3E066 CA01 CA08 DA01 EA01 LA30 3E086 BA15 BA16 BA29 BA35 BB72 BB84 4F074 AA02 AA03 AA04 AA24 AA42 AA66 AC36 AD04 AE04 AG01 BA00 DA33 4J002 AB013 AB021 AB041 AE002 BB032 BB121 BE021 CF031 DJ036 EC056 FA043 GG02──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat ゛ (Reference) C08K 5/053 C08K 7/02 7/02 C08L 23/04 C08L 23/04 89/00 89/00 91 / 00 91/00 101/00 ZBP 101/00 ZBP B65D 81/06 A F term (reference) 3E066 CA01 CA08 DA01 EA01 LA30 3E086 BA15 BA16 BA29 BA35 BB72 BB84 4F074 AA02 AA03 AA04 AA24 AA42 AA66 AC36 AD04 AE04 AG01 BA01 DA013 AB021 AB041 AE002 BB032 BB121 BE021 CF031 DJ036 EC056 FA043 GG02
Claims (9)
緩衝材において、その材質が分解性樹脂に補強材を８０
ないし１０重量％添加したものであることを特徴とする
分解性発泡バラ状緩衝材。1. A foamed cushioning material having an independent form, wherein the material is a decomposable resin and a reinforcing material is used.
A decomposable foamed rose-like buffer material, characterized in that it is added in an amount of 10 to 10% by weight.
とを特徴とする請求項１記載の分解性発泡バラ状緩衝
材。2. The foamed degradable foamed cushioning material according to claim 1, wherein a main component of the degradable resin is starch.
スであることを特徴とする請求項１記載の分解性発泡バ
ラ状緩衝材。3. The foamed degradable foamed cushioning material according to claim 1, wherein a main component of the degradable resin is cellulose acetate.
５０ないし５％を含むことを特徴とする請求項１ないし
３記載の分解性発泡バラ状緩衝材。4. The decomposable foamed loose cushioning material according to claim 1, wherein the decomposable resin contains 50 to 5% of polyvinyl alcohol.
いし５％を含むことを特徴とする請求項１ないし３記載
の分解性発泡バラ状緩衝材。5. The foamed degradable foamed cushioning material according to claim 1, wherein said degradable resin contains 50 to 5% of polypropylene.
０ないし５％を含むことを特徴とする請求項１ないし３
記載の分解性発泡バラ状緩衝材。6. The degradable resin is an aliphatic polyester 5
4. The method according to claim 1, wherein the content is 0 to 5%.
The decomposable foamed rose shaped buffer material according to the above.
ン、脂肪、タンパク質のいずれか、ないしはこれらの混
合体を５０ないし５％、ポリエチレン２０ないし５％を
含むことを特徴とする請求項１ないし３記載の分解性発
泡バラ状緩衝材。7. The method according to claim 1, wherein the degradable resin contains 50 to 5% of glycerin, kaolin, fat, protein, or a mixture thereof, and 20 to 5% of polyethylene. Decomposable foamed loose cushioning material.
用いたことを特徴とする請求項１ないし７記載の分解性
発泡バラ状緩衝材。8. The degradable foamed loose cushioning material according to claim 1, wherein a fibrous material is used as the reinforcing material in the degradable resin.
たことを特徴とする請求項１ないし７記載の分解性発泡
バラ状緩衝材。9. The decomposable foamed loose cushioning material according to claim 1, wherein a cellulose fiber is used as the reinforcing material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001051212A JP2002211632A (en) | 2001-01-22 | 2001-01-22 | Degradable foamed loose cushioning material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001051212A JP2002211632A (en) | 2001-01-22 | 2001-01-22 | Degradable foamed loose cushioning material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002211632A true JP2002211632A (en) | 2002-07-31 |
Family
ID=18912041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001051212A Pending JP2002211632A (en) | 2001-01-22 | 2001-01-22 | Degradable foamed loose cushioning material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002211632A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009078309A1 (en) * | 2007-12-19 | 2009-06-25 | Showa Highpolymer Co., Ltd. | Foamable resin composition and foam |
| JPWO2019155929A1 (en) * | 2018-02-08 | 2021-01-28 | 長瀬産業株式会社 | Fiber reinforced resin composition and its manufacturing method |
| JP2022514502A (en) * | 2018-12-11 | 2022-02-14 | ビーエーエスエフ ソシエタス・ヨーロピア | Polymer composites containing tubular particles |
-
2001
- 2001-01-22 JP JP2001051212A patent/JP2002211632A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009078309A1 (en) * | 2007-12-19 | 2009-06-25 | Showa Highpolymer Co., Ltd. | Foamable resin composition and foam |
| JPWO2019155929A1 (en) * | 2018-02-08 | 2021-01-28 | 長瀬産業株式会社 | Fiber reinforced resin composition and its manufacturing method |
| JP6994520B2 (en) | 2018-02-08 | 2022-02-04 | 長瀬産業株式会社 | Fiber reinforced resin composition and its manufacturing method |
| JP2022514502A (en) * | 2018-12-11 | 2022-02-14 | ビーエーエスエフ ソシエタス・ヨーロピア | Polymer composites containing tubular particles |
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