JPH078556B2 - Non-yellowing polyurethane resin sheet - Google Patents
Non-yellowing polyurethane resin sheetInfo
- Publication number
- JPH078556B2 JPH078556B2 JP2306604A JP30660490A JPH078556B2 JP H078556 B2 JPH078556 B2 JP H078556B2 JP 2306604 A JP2306604 A JP 2306604A JP 30660490 A JP30660490 A JP 30660490A JP H078556 B2 JPH078556 B2 JP H078556B2
- Authority
- JP
- Japan
- Prior art keywords
- polyurethane resin
- yellowing
- resin sheet
- thermoplastic polyurethane
- urethane 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.)
- Expired - Lifetime
Links
- 238000004383 yellowing Methods 0.000 title claims description 13
- 229920005749 polyurethane resin Polymers 0.000 title description 7
- 229920002803 thermoplastic polyurethane Polymers 0.000 claims description 24
- 239000004744 fabric Substances 0.000 claims description 8
- 239000010410 layer Substances 0.000 claims description 8
- 239000011247 coating layer Substances 0.000 claims description 3
- 239000003973 paint Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 description 8
- 239000011248 coating agent Substances 0.000 description 7
- 239000000835 fiber Substances 0.000 description 4
- 229920000728 polyester Polymers 0.000 description 4
- 238000002845 discoloration Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 210000003746 feather Anatomy 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 239000005056 polyisocyanate Substances 0.000 description 2
- 229920001228 polyisocyanate Polymers 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- AZYRZNIYJDKRHO-UHFFFAOYSA-N 1,3-bis(2-isocyanatopropan-2-yl)benzene Chemical compound O=C=NC(C)(C)C1=CC=CC(C(C)(C)N=C=O)=C1 AZYRZNIYJDKRHO-UHFFFAOYSA-N 0.000 description 1
- 239000005057 Hexamethylene diisocyanate Substances 0.000 description 1
- 239000005058 Isophorone diisocyanate Substances 0.000 description 1
- 229920002292 Nylon 6 Polymers 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 125000002723 alicyclic group Chemical group 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- HIFVAOIJYDXIJG-UHFFFAOYSA-N benzylbenzene;isocyanic acid Chemical class N=C=O.N=C=O.C=1C=CC=CC=1CC1=CC=CC=C1 HIFVAOIJYDXIJG-UHFFFAOYSA-N 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000012760 heat stabilizer Substances 0.000 description 1
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 description 1
- 125000004836 hexamethylene group Chemical group [H]C([H])([*:2])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[*:1] 0.000 description 1
- 239000012770 industrial material Substances 0.000 description 1
- 239000012784 inorganic fiber Substances 0.000 description 1
- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 150000003673 urethanes Chemical class 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
Landscapes
- Coating Of Shaped Articles Made Of Macromolecular Substances (AREA)
- Laminated Bodies (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は熱可塑性ポリウレタン樹脂層の表面の色が黄色
に変色しないシートに関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a sheet in which the surface color of a thermoplastic polyurethane resin layer does not change to yellow.
熱可塑性ポリウレタン樹脂は、ゴムとプラスチックスの
両特性を兼備したもとであり、引張り物性，耐摩耗性，
機械物性，耐寒性，耐溶剤性などに優れていることか
ら、産業資材に広く使用されている。しかしながら、周
知のごとく熱可塑性ポリウレタン樹脂は長期間に亘って
使用すると、光，熱，空気中の酸素等の影響により表面
の色が黄色に変色し、白色および淡色品は商品価値が低
下して使用用途によっては変色が問題になり使用不可能
になる問題点があった。Thermoplastic polyurethane resin has both properties of rubber and plastics, and has tensile properties, wear resistance, and
It is widely used in industrial materials because of its excellent mechanical properties, cold resistance and solvent resistance. However, as is well known, when a thermoplastic polyurethane resin is used for a long period of time, the surface color changes to yellow due to the effects of light, heat, oxygen in the air, etc., and the commercial value of white and light-colored products decreases. There is a problem that discoloration becomes a problem and it becomes unusable depending on the intended use.
この黄変は樹脂を構成する主要高分子の分子構造内に二
重結合や遊離ラジカルを生成することによって発現する
と考えられている。It is considered that this yellowing is caused by forming a double bond or a free radical in the molecular structure of the main polymer that constitutes the resin.
したがって、黄変しやすい樹脂には紫外線吸収剤，熱安
定剤，酸化防止剤などの添加剤を少量配合して黄変を防
止するとことが行われており、太陽光線あるいは熱によ
る変色の防止にはかなり有効であっても未だに充分な変
色を防止するまでに至っていないのが現状である。Therefore, it has been carried out to prevent yellowing by adding a small amount of additives such as UV absorbers, heat stabilizers, and antioxidants to yellowing-prone resins, and to prevent discoloration due to sunlight or heat. Although it is quite effective, the present situation is that it has not yet been able to prevent sufficient discoloration.
本発明はこのような問題点に鑑みてなされたもので、熱
可塑性ポリウレタン樹脂の優れた特性を損なうことな
く、しかも黄変を防止するポリウレタン樹脂シートを提
供するものである。The present invention has been made in view of the above problems, and provides a polyurethane resin sheet that prevents yellowing without impairing the excellent properties of the thermoplastic polyurethane resin.
上記目的を達成するため、本発明のシートは、繊維性基
布の片面に、熱可塑性ポリウレタン樹脂フイルムを層着
するとともに、その表面に３μ以上の厚さの無黄変ウレ
タン樹脂塗料被膜層を設けたものである。In order to achieve the above-mentioned object, the sheet of the present invention has a thermoplastic polyurethane resin film layered on one side of a fibrous base fabric, and a yellowing-free urethane resin coating film layer having a thickness of 3 μm or more on the surface thereof. It is provided.
本発明に用いる熱可塑性ポリウレタン樹脂としては、ポ
リエステル系，ポリエーテル系，ポリカーボネート系，
ポリカプロラクタム系等の１種または２種以上重合した
ものを用いる。The thermoplastic polyurethane resin used in the present invention includes polyester-based, polyether-based, polycarbonate-based,
A polymer obtained by polymerizing one or more of polycaprolactam type is used.
無黄変タイプウレタン樹脂塗料は、有機ポリイソシアネ
ートの脂肪族系あるいは脂環族系のポリイソシアネート
を用いることができ、例えばヘキサメチレンジイソシア
ネート，イソホロンジイソシアネート，水添ジフェニル
メタンジイソシアネート，水添キシレンジイソシーネー
ト，メタテトラメチルキシレンジイソシアネートなどが
好ましい。Non-yellowing type urethane resin coatings can use aliphatic or alicyclic polyisocyanates of organic polyisocyanates, such as hexamethylene diisocyanate, isophorone diisocyanate, hydrogenated diphenylmethane diisocyanate, hydrogenated xylene diisocyanate. , Metatetramethyl xylene diisocyanate and the like are preferable.
この無黄変タイプウレタン樹脂塗料の被膜厚さは、３μ
以下では薄くて黄変してしまい効果がなく、厚ければ厚
い程よいが、液状であるため、厚くするのに何回も塗着
しなければならない手数と高価であることから３μ以上
の厚さであればよい。The coating thickness of this non-yellowing urethane resin coating is 3μ
Below is not effective because it is thin and yellowing, and the thicker is better, but since it is liquid, it is expensive to apply many times and it is expensive, so a thickness of 3μ or more If
この層着はラミネーティングでもよいがコーティングが
適している。The layering may be laminating, but a coating is suitable.
繊維性基布は、天然繊維，合成繊維，無機繊維あるいは
これらの繊維を２種以上使用して織成した織成地，また
は編成した編成地でもよいが、ポリエステル繊維平織物
が最も望ましい。The fibrous base fabric may be a natural fiber, a synthetic fiber, an inorganic fiber, or a woven fabric formed by weaving two or more kinds of these fibers, or a knitted fabric, but a polyester fiber plain weave is most preferable.
本発明のウレタン樹脂シートは、大気と接する面に無黄
変タイプウレタン樹脂塗料を塗布することにより、黄変
を防止でき、商品価値を損なうことがない。そして、比
較的強度が求められると同時に見た目の美しさが重要視
されるテント、合羽、食品搬送ベルトに用いれば有効で
あり、長期間の使用に際しても黄変することがないの
で、商品価値の低下がなくなる。The urethane resin sheet of the present invention can prevent yellowing by applying a non-yellowing type urethane resin coating on the surface in contact with the atmosphere, and does not impair the commercial value. And, it is effective when used for tents, artificial feathers, food conveyor belts where relatively strong strength is required at the same time as appearance is important, and it does not turn yellow even after long-term use. There is no drop.
以下、本発明の具体的実施例を説明する。 Hereinafter, specific examples of the present invention will be described.
ポリエステル繊維糸状を経緯に配して平織された基布
（１）に、接着剤を塗布しておき、この接着剤面に熱可
塑性ポリウレタン樹脂（２）を層着し、該熱可塑性ポリ
ウレタン樹脂層（12）上に、ヘキサメチレンジイソシー
ネートよりなるポリウレタン樹脂塗料（13）を５μの厚
さに塗着した。An adhesive is applied to a base fabric (1) woven in a plain weave with polyester fiber threads arranged in the warp and weft, and a thermoplastic polyurethane resin (2) is layered on the adhesive surface to form a thermoplastic polyurethane resin layer. A polyurethane resin coating (13) made of hexamethylene diisocinate was applied onto the layer (12) to a thickness of 5 μm.
つぎに、本発明の無黄変ポリウレタン樹脂シートと従来
のポリウレタン樹脂シートとを同条件で耐候性試験を行
った結果の変色状態の比較を表１に示す。Next, Table 1 shows a comparison of discolored states as a result of a weather resistance test conducted under the same conditions for the yellowing-free polyurethane resin sheet of the present invention and the conventional polyurethane resin sheet.
試料No.1は、ポリエステル糸状で平織された基布に熱可
塑性ポリウレタン樹脂被膜層を施したもの。（従来品） 試料No.2は、No.1のものにさらに熱可塑性ポリウレタン
樹脂被膜面上に、無黄変タイプウレタン樹脂塗料よりな
る塗料を５μの厚さに塗着したもの。（本発明品） 第１表から明らかなように、グレースケールの判定数値
によって本発明のポリウレタン樹脂シートが著しく優れ
てきることが判る。Sample No. 1 is a polyester yarn-like plain weave base fabric with a thermoplastic polyurethane resin coating layer. (Conventional product) Sample No. 2 is the same as No. 1 coated with a 5 μm thick non-yellowing type urethane resin paint on the surface of the thermoplastic polyurethane resin film. (Invention product) As is clear from Table 1, it is understood that the polyurethane resin sheet of the present invention is remarkably excellent according to the judgment value of gray scale.
なお、汚染用グレースケールの判定は２つの試料を比較
して色差を号数によって行うもので、色差が大きい程、
数値が小さく１号より５号で表わされる。The gray scale for contamination is determined by comparing two samples and determining the color difference by the number. The larger the color difference,
The numbers are small and represented by No. 1 to No. 5.
すなわち、色差効果としては、５号が良く（フェドメー
ター耐候性試験前との差が少ない）１号が悪い（フェド
メーター耐候性試験前との差が大きい）ということであ
る。That is, as for the color difference effect, No. 5 is good (the difference from the pre-fedometer weather resistance test is small) and No. 1 is bad (the difference from the pre-fedometer weather resistance test is large).
本発明は繊維性基布の片面に、熱可塑性ポリウレタン樹
脂層を層着するとともに、その表面に３μ以上の厚さの
無黄変ポリウレタン樹脂塗料被膜層を塗着したことを特
徴とする無黄変ウレタン樹脂シートに係るものであるか
ら、比較的強さが求められ、かつ見た目の美しさが要求
される幌、テント、合羽、食品搬送ベルトに使用すれば
有効であると共に、長期間の使用に際しても熱可塑性ポ
リウレタン樹脂の表面の色が黄変することがないのでい
つまでも外観が美しくて商品価値の低下を来すことがな
い。The present invention is characterized in that a thermoplastic polyurethane resin layer is layered on one surface of a fibrous base fabric, and a yellowing-free polyurethane resin coating film layer having a thickness of 3 μm or more is coated on the surface thereof. Since it is related to the modified urethane resin sheet, it is effective when used for hoods, tents, feathers, and food transport belts that require relatively strong strength and beauty, and long-term use. At that time, the surface color of the thermoplastic polyurethane resin does not yellow, so that the appearance is always beautiful and the commercial value does not decrease.
図面は本発明の実施例を示すシートの断面図である。 （１）……基布 （２）……熱可塑性ポリウレタン樹脂層 （３）……無黄変ウレタン樹脂塗料被膜層 The drawings are cross-sectional views of sheets showing an embodiment of the present invention. (1) …… Base fabric (2) …… Thermoplastic polyurethane resin layer (3) …… Non-yellowing urethane resin paint coating layer
Claims (1)
ン樹脂層を層着するとともに、その表面に３μ以上の厚
さの無黄変ウレタン樹脂塗料被膜層を塗着したことを特
徴とする無黄変ウレタン樹脂シート。1. A thermoplastic polyurethane resin layer is layered on one side of a fibrous base fabric, and a non-yellowing urethane resin paint coating layer having a thickness of 3 μm or more is coated on the surface thereof. Non-yellowing urethane resin sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2306604A JPH078556B2 (en) | 1990-11-13 | 1990-11-13 | Non-yellowing polyurethane resin sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2306604A JPH078556B2 (en) | 1990-11-13 | 1990-11-13 | Non-yellowing polyurethane resin sheet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04176646A JPH04176646A (en) | 1992-06-24 |
| JPH078556B2 true JPH078556B2 (en) | 1995-02-01 |
Family
ID=17959076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2306604A Expired - Lifetime JPH078556B2 (en) | 1990-11-13 | 1990-11-13 | Non-yellowing polyurethane resin sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH078556B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2562566B2 (en) * | 1994-12-06 | 1996-12-11 | 日本メクトロン株式会社 | Retractable gaze guidance signpost |
| JP2562567B2 (en) * | 1994-12-06 | 1996-12-11 | 日本メクトロン株式会社 | Retractable gaze guidance signpost |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49132118A (en) * | 1973-04-20 | 1974-12-18 | ||
| JPS5784847A (en) * | 1980-11-17 | 1982-05-27 | Kohkoku Chem Ind | Sheet material with transparent coating layer |
| JPS57154471A (en) * | 1981-03-16 | 1982-09-24 | Kohkoku Chem Ind | Synthetic leather excellent in durability, high frequency fusibility and heat resistance |
| JPS58144183A (en) * | 1982-02-16 | 1983-08-27 | 共和レザ−株式会社 | Synthetic leather for vehicle |
| JPS58147356A (en) * | 1982-02-25 | 1983-09-02 | 平岡織染株式会社 | Flexible laminate |
| JPS59165653A (en) * | 1983-03-10 | 1984-09-18 | 平岡織染株式会社 | Flexible laminate |
| JPS6144993A (en) * | 1984-08-10 | 1986-03-04 | Mitsubishi Chem Ind Ltd | Method for manufacturing crude raw material pitch for carbon fiber |
| JPS6354833A (en) * | 1986-08-25 | 1988-03-09 | Nec Corp | Digital control type gain control circuit |
| JPH086264B2 (en) * | 1986-11-29 | 1996-01-24 | アキレス株式会社 | Wrinkled synthetic leather similar to natural leather and method for producing the same |
| JPH066861B2 (en) * | 1987-07-20 | 1994-01-26 | 三井建設株式会社 | Construction method of Kumashindai |
-
1990
- 1990-11-13 JP JP2306604A patent/JPH078556B2/en not_active Expired - Lifetime
Non-Patent Citations (1)
| Title |
|---|
| 岩田敬治著プラスチック材料講座２「ポリウレタン樹脂」日刊工業新聞社（昭和５４−９−１０）Ｐ．２１８ |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04176646A (en) | 1992-06-24 |
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