Production process of PVC (polyvinyl chloride) lamp-box fabric

Abstract

The invention relates to a production process of a PVC (polyvinyl chloride) lamp-box fabric. At present, a production process of a PVC lamp-box fabric which is uniform in plasticizing and remarkable in ink absorbing performance does not exist. The production process comprises the following steps: producing a PVC bottom membrane, producing a PVC surface membrane and jointing, wherein the PVC base membrane is prepared from 100 parts by weight of PVC resin, 18-23 parts by weight of calcium carbonate, 48-53 parts by weight of nano calcium, 28-55 parts by weight of phthalate, 3-5 parts by weight of epoxidized soybean oil, 4-6 parts by weight of a liquid stabilizing agent, and 5-15 parts by weight of condiments, and the step of producing the PVC base membrane comprises the procedures of firstly, preparing a main material, stirring the main material at a high speed for 30s, adding the condiments to obtain a material, cooling, mixing to obtain a ball, plasticizing and mixing, filtering for removing impurities, and calendaring to obtain the PVC base membrane; the step of producing the PVC surface membrane is similar to that of producing the PVC base membrane; the jointing step comprises the procedure of jointing the PVC base membrane and the PVC surface membrane on a fabric to obtain the PVC lamp-box fabric. The PVC lamp-box fabric is uniform in plasticizing and remarkable in ink absorbing performance.

Description

technical field [0001] The invention relates to a production process of a light box cloth, in particular to a production process of a PVC light box cloth. Background technique [0002] PVC light box cloth is usually made of PVC film. Because the plasticization of the PVC film currently produced is not very ideal, the ink absorption performance of the PVC film is average. Although it can be used, the shelf life is short. At the same time, the flexibility of the PVC film itself Generally, the service life is short, which reduces the overall performance of the PVC light box cloth. [0003] For example, the publication date is January 29, 2014, and the Chinese patent with the publication number CN103540062A discloses a PVC diaphragm and its manufacturing method. The raw material of the PVC diaphragm and its manufacturing method is 100 parts of PVC resin; 719: 1.0~1.2 parts; 0.015~0.017 parts of auxiliary stabilizer; MBS: 3.5~4.0 parts; ACR: 0.9~1.1 parts; 0.45~0.55 parts of int...

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Problems solved by technology

[0004] Another example is that the publication date is December 11, 2013, and the publication number is CN103435942A Chinese patent, which discloses a PVC base film, inkjet cloth for light box advertisements and a production method thereof. The PVC base film includes: 100 parts PVC resin; 30-40 parts of plasticizer; 4-5 parts of composite heat stabilizer; 0.6-0.8 parts of ultraviolet absorber; 0.2-0.3 parts of antioxidant; 6-8 parts of filler; 8 parts of inorganic flame retardant; 0.8 to 0.9 parts of chelating agent OHP; 0.2 to 0.4 parts of fatty acid, and 2 to 10 parts of coloring agent, although it can make the spray-painted cloth for outdoor light box advertising have good tensile strength, Peel strength and weather resistance, but the plasticization of the inkjet cloth used for outdoor light box advertising is not very ideal, and the ink absorption performance of the film is average

[0005] In summary, there is no production process for PVC light box cloth with uniform plasticization, outstanding ink absorption performance, good product flexibility and long service life.