TWI635204B - Synthetic leather and manufacturing method thereof - Google Patents
Synthetic leather and manufacturing method thereof Download PDFInfo
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- TWI635204B TWI635204B TW104106569A TW104106569A TWI635204B TW I635204 B TWI635204 B TW I635204B TW 104106569 A TW104106569 A TW 104106569A TW 104106569 A TW104106569 A TW 104106569A TW I635204 B TWI635204 B TW I635204B
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- 239000002649 leather substitute Substances 0.000 title claims abstract description 47
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 25
- 239000002994 raw material Substances 0.000 claims abstract description 79
- 229920005989 resin Polymers 0.000 claims abstract description 35
- 239000011347 resin Substances 0.000 claims abstract description 35
- 239000000758 substrate Substances 0.000 claims abstract description 35
- 229920005749 polyurethane resin Polymers 0.000 claims abstract description 26
- 238000010438 heat treatment Methods 0.000 claims abstract description 10
- 239000011248 coating agent Substances 0.000 claims abstract description 7
- 238000000576 coating method Methods 0.000 claims abstract description 7
- 230000002194 synthesizing effect Effects 0.000 claims abstract description 7
- 239000011265 semifinished product Substances 0.000 claims abstract description 6
- 238000009966 trimming Methods 0.000 claims abstract description 4
- 125000000524 functional group Chemical group 0.000 claims description 15
- 239000002981 blocking agent Substances 0.000 claims description 10
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 239000000126 substance Substances 0.000 claims description 5
- SDXAWLJRERMRKF-UHFFFAOYSA-N 3,5-dimethyl-1h-pyrazole Chemical compound CC=1C=C(C)NN=1 SDXAWLJRERMRKF-UHFFFAOYSA-N 0.000 claims description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 4
- 241001465754 Metazoa Species 0.000 claims description 4
- 229910052739 hydrogen Inorganic materials 0.000 claims description 4
- 239000001257 hydrogen Substances 0.000 claims description 4
- 239000004745 nonwoven fabric Substances 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 4
- 238000004804 winding Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- 239000000047 product Substances 0.000 claims description 3
- 238000004132 cross linking Methods 0.000 claims description 2
- 239000003960 organic solvent Substances 0.000 description 20
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 8
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 6
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 6
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- 238000001035 drying Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 229910002092 carbon dioxide Inorganic materials 0.000 description 4
- 239000001569 carbon dioxide Substances 0.000 description 4
- 239000012948 isocyanate Substances 0.000 description 4
- 150000002513 isocyanates Chemical class 0.000 description 4
- 239000004814 polyurethane Substances 0.000 description 4
- 239000011148 porous material Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000007711 solidification Methods 0.000 description 3
- 230000008023 solidification Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000007688 edging Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000010985 leather Substances 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000012644 addition polymerization Methods 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000001684 chronic effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 150000002440 hydroxy compounds Chemical class 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Landscapes
- Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
Abstract
本發明提供一種人造皮革及其製造方法，其中，製造方法包含下列步驟：合成，係將一第一原料及一第二原料合成一合成原料，第一原料係聚氨酯樹脂，該第二原料係呈膠狀之封閉劑；加熱，係將合成原料加熱，以降低合成原料之黏度；塗佈，係將合成原料倒於一基材上，並使合成原料均勻塗佈於基材之表面；定型，係將塗佈於基材之合成原料靜置，使合成原料凝固定型成一彈性樹脂層；烘烤，係將彈性樹脂層經高溫烘烤；整邊，係修整彈性樹脂層之邊緣，以形成一半成品；以及捲取，係將半成品捲取成捆，以獲得一人造皮革。The invention provides an artificial leather and a manufacturing method thereof, wherein the manufacturing method comprises the following steps: synthesizing, synthesizing a first raw material and a second raw material into a synthetic raw material, the first raw material is a polyurethane resin, and the second raw material is a gel-like sealer; heating, heating the synthetic raw material to reduce the viscosity of the synthetic raw material; coating, pouring the synthetic raw material onto a substrate, and uniformly coating the synthetic raw material on the surface of the substrate; The synthetic raw material coated on the substrate is allowed to stand, and the synthetic raw material is coagulated and fixed into an elastic resin layer; baking is performed by baking the elastic resin layer at a high temperature; and trimming, trimming the edge of the elastic resin layer to form a Semi-finished products; and coiling, which is a bundle of semi-finished products to obtain an artificial leather.
Description
本發明係關於一種人造皮革及其製造方法，其製造過程中無添加任何有機溶劑，並可使人造皮革之表面不會產生大小不一的孔隙。The present invention relates to an artificial leather and a method of manufacturing the same, which are manufactured without adding any organic solvent, and which can cause voids of different sizes on the surface of the artificial leather.
隨著工業技術的發展，人造皮革之製作技術亦日益進步，其可搭配不同之基材，以及運用不同之加工方式，製作出不同特性以及表面花紋之人造皮革，因此，與天然皮革相比，人造皮革具有多功能之優點且較符合經濟效益。With the development of industrial technology, the production technology of artificial leather is also progressing. It can be combined with different substrates and different processing methods to produce artificial leather with different characteristics and surface patterns. Therefore, compared with natural leather, Artificial leather has the advantages of versatility and is more economical.
習知人造皮革中，係以固成份大於重量百分比50%之聚氨酯樹脂(Polyurethane，簡稱為PU)作為原料之組成物最為常見，在製造過程中，為了使聚氨酯樹脂之黏度降低，原料中均會加入大量有機溶劑，如二甲基甲醯胺(DMF)、丁酮(MEK)及甲苯(TOL)等溶劑，以使聚氨酯樹脂塗佈於一基材上，之後，再進行烘乾步驟使基材上之聚氨酯樹脂凝固，基材上即可形成一聚氨酯樹脂層，而為了將聚氨酯樹脂層內之有機溶劑去除，必須再進行乾燥步驟使有機溶劑完全揮發，或是將有機溶劑與水置換，以使有機溶劑溶入水中，然而，有機溶劑係具有毒性，其不但對人體有慢性之危害，亦對環境造成很大的汙染，故目前許多國家已經禁止相關有機溶劑的使用。In the artificial leather, it is most common to use a polyurethane resin (Polyurethane, abbreviated as PU) having a solid content of more than 50% by weight as a raw material. In the manufacturing process, in order to reduce the viscosity of the polyurethane resin, the raw materials are Adding a large amount of an organic solvent such as dimethylformamide (DMF), methyl ethyl ketone (MEK), and toluene (TOL) to coat the polyurethane resin on a substrate, and then drying the substrate. The polyurethane resin on the material is solidified, and a polyurethane resin layer can be formed on the substrate. In order to remove the organic solvent in the polyurethane resin layer, a drying step must be performed to completely volatilize the organic solvent, or the organic solvent is replaced with water. In order to dissolve the organic solvent into the water, however, the organic solvent is toxic, which not only has a chronic hazard to the human body, but also causes great pollution to the environment. Therefore, many countries have banned the use of related organic solvents.
此外，聚氨酯樹脂係以異氰酸酯及多元羥基化合物(例如多元醇)，在催化劑和其它助劑存在下加成聚合反應而生成，而異氰酸酯因具有-NCO之官能基，使得異氰酸酯容易和水反應生成二氧化碳，因此，當聚氨酯樹脂塗佈於基材上後進行烘乾步驟定型時，聚氨酯樹脂表面剩餘之異氰酸酯容易和空氣中之水分反應形成二氧化碳， 使得烘乾凝固後之聚氨酯樹脂層之表面容易形成大小不一之孔隙，進而影響整體人造皮革之品質及觀感。Further, the polyurethane resin is formed by addition polymerization of an isocyanate and a polyvalent hydroxy compound (for example, a polyol) in the presence of a catalyst and other auxiliary agents, and the isocyanate has a functional group of -NCO, so that the isocyanate easily reacts with water to form carbon dioxide. Therefore, when the polyurethane resin is applied to the substrate and then subjected to a drying step, the remaining isocyanate on the surface of the polyurethane resin easily reacts with moisture in the air to form carbon dioxide, so that the surface of the polyurethane resin layer after drying and solidification easily forms a size. Not only the pores, but also affect the quality and look of the overall artificial leather.
為解決上述課題，本發明提供一種人造皮革及其製造方法，其製造過程中無添加任何有機溶劑，並可使其製品之表面不會產生大小不一的孔隙。In order to solve the above problems, the present invention provides an artificial leather and a method for producing the same, which are not added with any organic solvent in the manufacturing process, and which do not cause pores of different sizes on the surface of the product.
為達前述目的，本發明之人造皮革之製造方法，其包含下列步驟：In order to achieve the above object, the method for producing artificial leather of the present invention comprises the following steps:
(a) 合成，係將一第一原料及一第二原料合成一合成原料，其中，第一原料係聚氨酯樹脂，第二原料係呈膠狀之封閉劑，而封閉劑之化學成分為3,5-二甲基吡唑(3,5-dimethylpyrazole)，以自動包覆或封閉聚氨酯樹脂部分之-NCO官能基，而未封閉之部分-NCO官能基即可進行濕氣硬化反應架橋形成篩狀；(a) synthesizing a first raw material and a second raw material into a synthetic raw material, wherein the first raw material is a polyurethane resin, the second raw material is a gel-like blocking agent, and the chemical composition of the blocking agent is 3. 5-, 5-dimethylpyrazole, which automatically coats or blocks the -NCO functional group of the urethane resin, while the unblocked part -NCO functional group can be wet-hardened to form a sieve ;
(b) 加熱，係將合成原料加熱，以降低合成原料之黏度；(b) heating, heating the synthetic raw materials to reduce the viscosity of the synthetic raw materials;
(c) 塗佈，係將合成原料倒於一基材上，並使合成原料均勻塗佈於基材之表面；(c) coating, pouring the synthetic raw material onto a substrate, and uniformly coating the synthetic raw material on the surface of the substrate;
(d) 定型，係將塗佈於基材之合成原料靜置，使合成原料凝固定型成一彈性樹脂層；(d) setting, the synthetic raw material coated on the substrate is allowed to stand, and the synthetic raw material is coagulated and fixed into an elastic resin layer;
(e) 烘烤，係將彈性樹脂層經高溫烘烤，使先前遭封閉之-NCO官能基產生解封反應，可與彈性樹脂層中聚氨酯樹脂之活潑氫發生交聯架橋，令彈性樹脂層形成網狀之架橋結構；(e) baking, the elastic resin layer is baked at a high temperature to cause a deblocking reaction of the previously blocked -NCO functional group, and cross-linking with the active hydrogen of the polyurethane resin in the elastic resin layer to make the elastic resin layer Forming a mesh bridge structure;
(f) 整邊，係修整彈性樹脂層之邊緣，以形成一半成品；以及(f) the entire edge, trimming the edges of the elastic resin layer to form half of the finished product;
(g) 捲取，係將步驟(f)之半成品捲取成捆，以獲得一人造皮革。(g) Winding, by taking the semi-finished product of step (f) into a bundle to obtain an artificial leather.
藉由上述，本發明可達成功效之一，係本發明人造皮革之合成原料，係以加熱之方式取代習知添加有機溶劑之方式，使得合成原料之黏度降低以塗佈於基材上，因此，本發明人造皮革之製造過程中無需添加任何有機溶劑，使其可符合環保需求，藉以免除對於人體與環境之污染，更無需再進行乾燥步驟使有機溶劑揮發，或是將有機溶劑與水置換以去除有機溶劑，故本發明可加快人造皮革之製造過程，可節省許多人力、設備及時間成本，較具經濟效益。According to the above, one of the effects of the present invention is that the synthetic raw material of the artificial leather of the present invention is replaced by a conventional method of adding an organic solvent in a heating manner, so that the viscosity of the synthetic raw material is lowered to be applied to the substrate. The artificial leather of the invention does not need to be added with any organic solvent in the manufacturing process, so that it can meet the environmental protection requirements, thereby eliminating the pollution to the human body and the environment, and eliminating the need for a drying step to volatilize the organic solvent or replacing the organic solvent with water. In order to remove the organic solvent, the invention can speed up the manufacturing process of the artificial leather, can save a lot of manpower, equipment and time cost, and is more economical.
藉由上述，本發明可達成功效之二，係合成原料進行合成時，第二原料之封閉劑可自動包覆或封閉聚氨酯樹脂部分之-NCO官能基，而未封閉之部分-NCO官能基即可進行濕氣硬化反應架橋形成篩狀，因此，當合成原料靜置凝固定型時，合成原料表面無法和空氣中之水分反應形成二氧化碳，使得凝固後形成之彈性樹脂層其表面不會形成大小不一的孔隙，藉以可增進整體人造皮革之品質。By the above, the invention can achieve the second effect. When the synthetic raw material is synthesized, the blocking agent of the second raw material can automatically coat or block the -NCO functional group of the polyurethane resin portion, and the unblocked portion-NCO functional group is The moisture hardening reaction can be bridged to form a sieve shape. Therefore, when the synthetic raw material is statically set and fixed, the surface of the synthetic raw material cannot react with moisture in the air to form carbon dioxide, so that the surface of the elastic resin layer formed after solidification does not form a size. The pores of one can enhance the quality of the overall artificial leather.
藉由上述，本發明可達成功效之三，係由於本發明人造皮革之製程中無須添加有機溶劑，使本發明合成原料中聚氨酯樹脂之固成份可高達重量百分比100%，此外，藉由步驟(e)烘烤之步驟，可令彈性樹脂層形成網狀之架橋結構，因此，整體功效加總，本發明可提升人造皮革之安定性及物理性質，使其具有較佳之彈性、延展性及耐磨性。According to the above, the third aspect of the invention can be achieved because the solid component of the polyurethane resin in the synthetic raw material of the invention can be up to 100% by weight, and the step is e) the step of baking allows the elastic resin layer to form a mesh-like bridging structure. Therefore, the overall effect is increased, and the invention can improve the stability and physical properties of the artificial leather, so that it has better elasticity, ductility and resistance. Grinding.
為便於說明本發明於上述發明內容一欄中所表示的中心思想，茲以具體實施例表達。實施例中各種不同物件係按適於列舉說明之比例，而非按實際元件的比例予以繪製，合先敘明。For the convenience of the description, the central idea expressed by the present invention in the column of the above summary of the invention is expressed by the specific embodiments. The various items in the examples are drawn to scale in the description and not to the actual elements, and are described in the foregoing.
請參閱圖1及圖2所示，本發明提供一種人造皮革100之製造方法，其包含下列步驟：Referring to FIG. 1 and FIG. 2, the present invention provides a method for manufacturing artificial leather 100, which comprises the following steps:
合成S1，係將一第一原料及一第二原料合成一合成原料，其中，合成時所需之溫度為攝氏80度~100度，所需之時間為1小時，而第一原料係固成份為重量百分比100%之聚氨酯樹脂(Polyurethane，簡稱為PU)，並佔合成原料之重量百分比95%~97%，第二原料係呈膠狀之封閉劑，並佔合成原料之重量百分比3%~5%，而封閉劑之化學成分為3,5-二甲基吡唑(3,5-dimethylpyrazole)，以自動包覆或封閉聚氨酯樹脂部分之-NCO官能基，而未封閉之部分-NCO官能基即可進行濕氣硬化反應架橋形成篩狀。Synthesizing S1 is to synthesize a first raw material and a second raw material into a synthetic raw material, wherein the temperature required for the synthesis is 80 degrees Celsius to 100 degrees Celsius, and the required time is 1 hour, and the first raw material solidifying component It is 100% by weight of polyurethane resin (Polyurethane, abbreviated as PU), and accounts for 95%~97% by weight of synthetic raw materials. The second raw material is a gelatinous sealant and accounts for 3% by weight of synthetic raw materials. 5%, and the chemical composition of the blocking agent is 3,5-dimethylpyrazole, which automatically coats or blocks the -NCO functional group of the polyurethane resin, while the unblocked part - NCO functional The base can be subjected to a moisture hardening reaction to form a sieve.
加熱S2，係將合成原料以攝氏60度~150度加熱，以降低合成原料之黏度。Heating S2 is to heat the synthetic raw materials at 60 to 150 degrees Celsius to reduce the viscosity of the synthetic raw materials.
塗佈S3，係將合成原料倒於一基材10上，並使合成原料均勻塗佈於基材10之表面，而基材10可係一不織布或一動物皮。S3 is applied by pouring the synthetic raw material onto a substrate 10, and uniformly applying the synthetic raw material to the surface of the substrate 10, and the substrate 10 may be a non-woven fabric or a animal skin.
定型S4，係將塗佈於基材10之合成原料靜置1分鐘~15分鐘，使合成原料凝固定型後，基材10上可形成一彈性樹脂層20。In the molding S4, the synthetic raw material applied to the substrate 10 is allowed to stand for 1 minute to 15 minutes, and after the synthetic raw material is solidified, an elastic resin layer 20 can be formed on the substrate 10.
烘烤S5，係將彈性樹脂層20經攝氏100度~150度之高溫烘烤，使先前遭封閉之-NCO官能基產生解封反應，可與彈性樹脂層20中聚氨酯樹脂之活潑氫發生交聯架橋，令彈性樹脂層20形成網狀之架橋結構。Baking S5, the elastic resin layer 20 is baked at a high temperature of 100 to 150 degrees Celsius to cause a deblocking reaction of the previously blocked -NCO functional group, which may be combined with the active hydrogen of the polyurethane resin in the elastic resin layer 20. The bridge bridges the elastic resin layer 20 to form a mesh bridge structure.
整邊S6，係修整彈性樹脂層20之邊緣，修整出具有平整之一半成品，使得彈性樹脂層20與基材10之邊緣齊平。The edging S6 trims the edge of the elastic resin layer 20 and trims one of the flat semi-finished products so that the elastic resin layer 20 is flush with the edge of the substrate 10.
捲取S7，係將整邊S6之半成品捲取成捆，例如採用50米或是100米為一捲等，以獲得一人造皮革100。The S7 is taken up by winding a semi-finished product of the entire side S6 into a bundle, for example, a roll of 50 meters or 100 meters, to obtain an artificial leather 100.
請參閱圖2所示，係藉由上述製造方法製造之人造皮革100之外觀示意圖。本發明之人造皮革100係包含一基材10及一彈性樹脂層20，其中，基材10可係一不織布或一動物皮，彈性樹脂層20其結合於基材10上，並係由一第一原料及一第二原料合成而成，第一原料係聚氨酯樹脂，並佔合成原料之重量百分比95%~97%，而第二原料係呈膠狀之封閉劑，並佔合成原料之重量百分比3%~5%，且封閉劑之化學成分為3,5-二甲基吡唑(3,5-dimethylpyrazole)。Referring to FIG. 2, it is a schematic view of the appearance of the artificial leather 100 manufactured by the above manufacturing method. The artificial leather 100 of the present invention comprises a substrate 10 and an elastic resin layer 20, wherein the substrate 10 can be a non-woven fabric or a animal skin, and the elastic resin layer 20 is bonded to the substrate 10, and is a raw material and a second raw material are synthesized, the first raw material is a polyurethane resin, and accounts for 95% to 97% by weight of the synthetic raw material, and the second raw material is a gelatinous sealing agent, and accounts for the weight percentage of the synthetic raw material. 3% to 5%, and the chemical composition of the blocking agent is 3,5-dimethylpyrazole.
另，請參閱圖3所示，係本發明人造皮革100另一實施例之製造步驟示意圖，此實施例之製造步驟與前述不同之處在於，塗佈S3中之基材10係一離型紙，且更包含有一脫模S8之步驟，位於烘烤S5及整邊S6之間，用以將彈性樹脂層20剝離基材10，如圖4及圖5所示，之後，再將彈性樹脂層20經由整邊S6及捲取S7，即可形成本發明之人造皮革100之另一實施例。3 is a schematic view showing the manufacturing steps of another embodiment of the artificial leather 100 of the present invention. The manufacturing steps of the embodiment are different from the foregoing, in that the substrate 10 coated in S3 is a release paper. And further comprising a step of releasing the mold S8 between the baking S5 and the entire side S6 for peeling the elastic resin layer 20 from the substrate 10, as shown in FIG. 4 and FIG. 5, and then, the elastic resin layer 20 Another embodiment of the artificial leather 100 of the present invention can be formed by the edging S6 and the winding S7.
而上述本發明另一實施例之基材10，其可係如圖4無花紋之離型紙，或係如圖5具有花紋之離型紙，使得本發明另一實施例可依需求選用不同花紋之離型紙，以使於脫模後之彈性樹脂層20帶有紋路，可增加人造皮革100之美觀或是特定功能性，以滿足不同之供應需求。The substrate 10 of another embodiment of the present invention may be a release paper having no pattern as shown in FIG. 4 or a release paper having a pattern as shown in FIG. 5, so that another embodiment of the present invention can select different patterns according to requirements. The release paper is used to impart a texture to the elastic resin layer 20 after demolding, thereby increasing the aesthetics or specific functionality of the artificial leather 100 to meet different supply requirements.
藉此，由於本發明人造皮革100之合成原料，係以加熱之方式取代習知添加有機溶劑之方式，使得合成原料之黏度降低以塗佈於基材10上，因此，本發明人造皮革100之製造過程中無需添加任何有機溶劑，使其可符合環保需求，藉以免除對於人體與環境之污染，更無需再進行乾燥步驟使有機溶劑揮發，或是將有機溶劑與水置換以去除有機溶劑，故本發明可加快人造皮革之製造過程，可節省許多人力、設備及時間成本，較具經濟效益。Therefore, since the synthetic raw material of the artificial leather 100 of the present invention is replaced by a conventional method of adding an organic solvent by heating, the viscosity of the synthetic raw material is lowered to be applied to the substrate 10, and therefore, the artificial leather 100 of the present invention There is no need to add any organic solvent in the manufacturing process, so that it can meet the environmental protection requirements, so as to avoid contamination of the human body and the environment, and no need to carry out the drying step to volatilize the organic solvent, or replace the organic solvent with water to remove the organic solvent, so The invention can accelerate the manufacturing process of artificial leather, can save a lot of manpower, equipment and time cost, and is more economical.
此外，合成原料進行合成S1之步驟時，第二原料之封閉劑可自動包覆或封閉聚氨酯樹脂部分之-NCO官能基，而未封閉之部分-NCO官能基即可進行濕氣硬化反應架橋形成篩狀，因此，當合成原料於定型S4步驟中進行靜置凝固定型時，合成原料表面無法和空氣中之水分反應形成二氧化碳，使得凝固後形成之彈性樹脂層20其表面不會形成大小不一的孔隙，藉以可增進整體人造皮革100之品質。In addition, when the synthetic raw material is subjected to the step of synthesizing S1, the blocking agent of the second raw material can automatically coat or block the -NCO functional group of the urethane resin portion, and the unblocked portion-NCO functional group can be used for bridging the moisture hardening reaction. In the form of a sieve, when the synthetic raw material is subjected to the static setting type in the step of setting S4, the surface of the synthetic raw material cannot react with the moisture in the air to form carbon dioxide, so that the surface of the elastic resin layer 20 formed after solidification does not form a size. The pores can enhance the quality of the overall artificial leather 100.
再者，由於本發明人造皮革100之製程中無須添加有機溶劑，使本發明合成原料中聚氨酯樹脂之固成份可高達重量百分比100%，且藉由烘烤S5之步驟，使得先前遭封閉之-NCO官能基產生解封反應，而解封後之-NCO官能基即可與彈性樹脂層20中聚氨酯樹脂之活潑氫發生交聯架橋，以令彈性樹脂層20形成網狀之架橋結構，因此，整體功效加總，本發明可提升人造皮革100之安定性及物理性質，使其具有較佳之彈性、延展性及耐磨性，如下表1之拉伸試驗數據所示。
以上所舉實施例僅用以說明本發明而已，非用以限制本發明之範圍。舉凡不違本發明精神所從事的種種修改或變化，俱屬本發明意欲保護之範疇。The above embodiments are merely illustrative of the invention and are not intended to limit the scope of the invention. Any modifications or variations that are made without departing from the spirit of the invention are intended to be protected.
100‧‧‧人造皮革
10‧‧‧基材
20‧‧‧彈性樹脂層
S1‧‧‧合成
S2‧‧‧加熱
S3‧‧‧塗佈
S4‧‧‧定型
S5‧‧‧烘烤
S6‧‧‧整邊
S7‧‧‧捲取
S8‧‧‧脫模100‧‧‧Faux leather
10‧‧‧Substrate
20‧‧‧Elastic resin layer
S1‧‧‧ synthesis
S2‧‧‧ heating
S3‧‧‧ coating
S4‧‧‧ stereotypes
S5‧‧‧ baking
S6‧‧‧ Whole side
S7‧‧‧ Volume
S8‧‧‧ demoulding
圖1係本發明人造皮革之製造步驟示意圖。 圖2係本發明人造皮革之外觀示意圖。 圖3係本發明人造皮革之另一實施例之製造步驟示意圖。 圖4係本發明人造皮革之另一實施例之彈性樹脂層拆離基材之示意圖(一)。 圖5係本發明人造皮革之另一實施例之彈性樹脂層拆離基材之示意圖(二)。BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic view showing the steps of manufacturing the artificial leather of the present invention. Fig. 2 is a schematic view showing the appearance of the artificial leather of the present invention. Figure 3 is a schematic view showing the manufacturing steps of another embodiment of the artificial leather of the present invention. Fig. 4 is a schematic view (1) showing the separation of the elastic resin layer of the other embodiment of the artificial leather of the present invention. Fig. 5 is a schematic view (2) showing the separation of the elastic resin layer of another embodiment of the artificial leather of the present invention.
Claims (10)
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| TW104106569A TWI635204B (en) | 2014-04-03 | 2015-03-03 | Synthetic leather and manufacturing method thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW293094B (en) * | 1993-02-18 | 1996-12-11 | Nissan Chemical Ind Ltd | |
| CN102758359A (en) * | 2012-07-06 | 2012-10-31 | 河南永合塑胶有限公司 | Polyurethane synthetic leather cleaning production process based on direct coating method |
| TWI388583B (en) * | 2009-03-13 | 2013-03-11 | Nippon Polyurethane Kogyo Kk | A polyurethane resin film material group formed on the substrate |
| TW201410724A (en) * | 2012-05-24 | 2014-03-16 | Bayer Materialscience Ag | Aqueous blocked polyurethaneurea dispersion |
-
2015
- 2015-03-03 TW TW104106569A patent/TWI635204B/en not_active IP Right Cessation
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW293094B (en) * | 1993-02-18 | 1996-12-11 | Nissan Chemical Ind Ltd | |
| TWI388583B (en) * | 2009-03-13 | 2013-03-11 | Nippon Polyurethane Kogyo Kk | A polyurethane resin film material group formed on the substrate |
| TW201410724A (en) * | 2012-05-24 | 2014-03-16 | Bayer Materialscience Ag | Aqueous blocked polyurethaneurea dispersion |
| CN102758359A (en) * | 2012-07-06 | 2012-10-31 | 河南永合塑胶有限公司 | Polyurethane synthetic leather cleaning production process based on direct coating method |
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