TW201418405A - Method of preparing ultra-thin elastic adhesive tape - Google Patents

Abstract

The present invention discloses a preparation method of an ultra-thin elastic adhesive tape, in which an adhesive is firstly formed onto the surface of a woven fabric. Subsequently, the adhesive is dried under the Celsius degree of 100~150. Finally, a thermoplastic polyurethane (TPU) elastic film with a thickness of 0.03~0.07 millimeter (mm) is formed onto the surface of the woven fabric through the adhesive to be joined with the woven fabric for completing the preparation. The present invention adopts the ultra-thin thermoplastic polyurethane elastic film, not only having the property of the environmentally-friendly material, but also being different from the prior-art processing way of the thermal calendaring and containing the light-weight advantage.

Description

Ultra-thin elastic tape manufacturing method

The invention relates to a method for manufacturing a tape, in particular to a method for manufacturing an ultra-thin elastic tape.

In recent years, environmental awareness has risen. Therefore, materials for environmental protection materials are selected from environmentally friendly materials. The thermoplastic polyurethane-based elastic (TPU) film is a mature non-toxic environmentally friendly material and a kind of polymer elastomer with wear resistance and resistance. Pulling, high temperature resistance, low temperature resistance, no cracking, etc., its products cover a range of industrial applications and civilian necessities, can be used in lifesaving, footwear, sporting goods, clothing, medical products, etc., in response to world environmental awareness It replaces polyvinyl chloride (PVC), which is widely used and has been widely used due to its superior performance and environmental protection concept.

Thermoplastic polyurethane is a property of rubber and plastic. After years of research and development, it has been able to manufacture various types of products, including injection grade, extrusion grade, blown film grade, and thermoplastic polymerization. The properties of the urethane-based elasticity have been developed through the continuous improvement and improvement of various industrial products, and different thermal plastic polyurethane elasticity has been developed. In the conventional art, if an elastic tape is to be produced, it is produced by hot calendering, that is, it is heated and melt-rolled into a film by thermoplastic polyurethane elastic particles, but the film can only be 0.1. The thickness of centimeters (mm) does not reduce the overall weight.

Accordingly, the present invention has been made in view of the above problems, and a method for producing an ultra-thin elastic tape is proposed to solve the problems caused by the prior art.

The main object of the present invention is to provide an ultra-thin elastic tape and a preparation method thereof, which are characterized by using an ultra-thin thermoplastic polyurethane elastic (TPU) film, which has environmental properties of non-toxicity and light weight. The demand can be applied to the production of lifesaving, sports, people's livelihood and other products.

In order to achieve the above object, the present invention provides a method for producing an ultra-thin elastic tape. First, an adhesive is formed on the surface of a woven fabric. Next, the thickness will be 0.03~0.07 cm (mm) A thermoplastic polyurethane-based elastic film is formed on the surface of the woven fabric through an adhesive to be bonded to the woven fabric to complete the production.

In order to give the review board members a better understanding and understanding of the structural features and the efficacies of the present invention, please refer to the preferred embodiment diagrams and the detailed descriptions as follows:

The properties of thermoplastic polyurethane elastomer (TPU) have been developed and improved by different needs of various industrial products, such as mechanical strength, wear resistance, cold resistance, UV resistance, and tortuosity. , good elongation, biocompatibility and various special products such as polyether and polyester. The present invention is directed to a lightweight thermal plastic polyurethane elastic film application.

Referring to Figures 1 and 2 below, a first embodiment of the present invention will be described. First, as shown in step S10, an adhesive is uniformly formed on the surface of a woven fabric 10, and the woven fabric 10 is maintained in a stable flatness. The adhesive has a viscosity of 80,000 to 90000 centipoise (cps) and contains 100 parts by weight of a polyurethane (PU) resin, 5 to 10 parts by weight of an isocyanate bridging agent and toluene as a solvent. The isocyanate bridging agent further comprises 12.5 to 13.5% by weight of isocyanate, 73 ± 2% by weight of a solid component, and 0.5% by weight or less of free toluene diisocyanate (TDI). Next, as shown in step S12, the adhesive is dried at 100 to 150 degrees Celsius. Further, as shown in step S14, a thermoplastic polyurethane elastic film 12 having a thickness of 0.03 to 0.07 cm (mm) is placed in an environment of 70 to 155 degrees Celsius, and preheated for 10 to 30 seconds. And apply a tension of 5 to 25 kg for flattening. Then, as shown in step S16, the thermoplastic polyurethane-based elastic film 12 is adhered to the surface of the woven fabric 10 through an adhesive, and the thermoplastic resin-based elastic film 12 and the woven fabric 10 are applied. The bonding is carried out at a pressure of 5 to 10 kg/cm 2 (kg/cm ² ). After completion, as shown in step S18, the hot plastic polyurethane elastic film 12 and the adhesive are heated by an electric heating tube at 100 to 140 degrees Celsius to soften the thermoplastic polyurethane elastic film 12 and volatilize. The solvent in the adhesive. Finally, as shown in step S20, the thermoplastic polyurethane-based elastic film 12 and the woven fabric 10 are subjected to a pressure of 5 to 10 kg/cm 2 by a heat embossing machine to thermally mold the polyamino group by using an adhesive. The formate elastic film 12 and the woven fabric 10 are joined together as shown in Fig. 2. The invention attaches an ultra-thin thermoplastic polyurethane elastic film to the woven fabric, and the method is separated from the injection and lamination methods on the market, and also improves the traditional hot rolling method. The thermoplastic polyurethane-based elastic film has a thickness limit of only 0.1 cm. In addition, since the thickness of the thermoplastic polyurethane elastic film of the present invention is ultra-thin 0.03 to 0.07 cm, it is not only a non-toxic environmentally friendly material, but also has the advantages of light weight, and can be applied to lifesaving and sports. , people's livelihood and other products.

The step S14 to the step S20 may be replaced by a step, that is, after the end of the step S12, the thermoplastic polyurethane elastic film 12 having a thickness of 0.03 to 0.07 cm is directly adhered to the woven fabric 10 through an adhesive. On the surface, to complete the joint.

Referring to Figures 2 and 3 below, a second embodiment of the present invention will be described. The difference between the second embodiment and the first embodiment is that the second embodiment omits step S12, that is, after the end of step S10 described above, step S14 to step S20 are directly performed. In other words, when the adhesive is uniformly formed on the surface of the woven fabric 10, a thermoformable polyurethane elastic film 12 having a thickness of 0.03 to 0.07 cm (mm) is placed in Celsius as shown in step S14. In an environment of 70 to 155 degrees, preheat for 10 to 30 seconds and apply a tension of 5 to 25 kg for flattening. Subsequent steps S16 to S20 are the same as the first embodiment, and are not described herein again. The completion diagram is shown in Figure 2.

Similarly, the above steps S14 to S20 may be replaced by one step, that is, after the end of step S12, the thermoplastic polyurethane elastic film 12 having a thickness of 0.03 to 0.07 cm is directly adhered to the woven fabric through an adhesive. The surface of the cloth 10 is used to complete the joint.

In summary, the present invention directly bonds a thermoplastic polyurethane elastic film having a thickness of 0.03 to 0.07 cm to achieve an environmentally friendly and lightweight product.

The above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, so that the shapes, structures, features, and spirits described in the claims of the present invention are equally varied and modified. All should be included in the scope of the patent application of the present invention.

10‧‧‧Weaving

12‧‧‧Hot plastic polyurethane elastic film

Figure 1 is a flow chart of a first embodiment of the present invention.

Fig. 2 is a perspective view showing the structure of the ultra-thin elastic tape of the present invention.

Figure 3 is a flow chart of a second embodiment of the present invention.

Claims (8)

The invention relates to a method for manufacturing an ultra-thin elastic tape, comprising the steps of: (a) forming an adhesive on a surface of a woven fabric; and (b) forming a thermoplastic polyurethane having a thickness of 0.03 to 0.07 cm (mm). An ester-based elastic (TPU) film is formed on the surface through the adhesive to bond with the woven fabric. The method for producing an ultra-thin elastic tape according to claim 1, wherein after the step of forming the adhesive on the surface, the adhesive is further dried at 100 to 150 degrees Celsius, and then the heat is further applied. A flexible polyurethane-based elastic film formed on the surface by the adhesive to join the woven fabric. The method for producing an ultra-thin elastic tape according to claim 1, wherein the step (b) further comprises the step of: (b1) pre-treating the thermoplastic polyurethane elastic film at 70 to 155 degrees Celsius. Heating for 10 to 30 seconds and applying a tension of 5 to 25 kg; (b2) adhering the thermoplastic polyurethane elastic film to the surface of the woven fabric through the adhesive, and thermoforming the thermoplastic The polyurethane elastic film and the woven fabric are subjected to a pressure of 5 to 10 kg/cm ² (b3) to heat the thermoplastic polyurethane elastic film at 100 to 140 ° C. And the adhesive to soften the heat-mouldable polyurethane-based elastic film and volatilize the solvent in the adhesive; and (b4) apply the heat-mouldable polyurethane-based elastic film to the woven fabric A pressure of ~10 kg/cm 2 is used to bridge the thermoplastic polyurethane elastic film and the woven fabric by the adhesive. The method for producing an ultrathin elastic tape according to claim 3, wherein in the step (b3), the thermoplastic polyurethane elastic film and the adhesive are heated by an electric heating tube at 100 to 140 degrees Celsius. To soften the thermoplastic polyurethane elastic film and volatilize the solvent in the adhesive. The method for producing an ultrathin elastic tape according to claim 3, wherein in the step (b4), the thermoplastic polyurethane elastic film and the woven fabric are applied by a heat embossing machine. The pressure of ~10 kg/cm 2 is used to bridge the thermoplastic polyurethane elastic film and the woven fabric by the adhesive. The method for producing an ultrathin elastic tape according to claim 1, wherein the adhesive comprises 100 parts by weight of a polyurethane (PU) resin, 5 to 10 parts by weight of an isocyanate bridging agent, and a solvent. Toluene. The method for producing an ultrathin elastic tape according to claim 6, wherein the isocyanate bridging agent further comprises 12.5 to 13.5% by weight of isocyanate, 73 ± 2% by weight of a solid component, and 0.5% by weight or less of free toluene. Diisocyanate (TDI). The method for producing an ultra-thin elastic tape according to claim 1, wherein the viscosity of the adhesive is 80,000 to 90000 centipoise (cps).