阅读说明：本技术 冠印转印双面台布及其生产工艺 (Crown print transfer printing double-sided tablecloth and production process thereof ) 是由 刘承发 于 2019-11-21 设计创作，主要内容包括：本发明涉及家居用品领域,具体涉及一种冠印转印双面台布及其生产工艺,冠印转印双面台布的生产工艺,包括如下步骤：S1：制作PVC基层；S2：在PVC基层的两面分别转移压纹金银膜和转印图案；S3：对经转移压纹金银膜和转印图案处理后的PVC基层进行成型冷却处理；S4：收卷。本发明一面转印图案一面转移压纹金银膜、能展现双面色彩效果、表面图案光鲜亮丽、外表美观、装饰效果好,柔软舒适、耐磨性好、防水防油、平展性好,且生产成本低、生产效率高。(The invention relates to the field of household articles, in particular to a crown print transfer printing double-sided tablecloth and a production process thereof, wherein the production process of the crown print transfer printing double-sided tablecloth comprises the following steps: s1: manufacturing a PVC base layer; s2: transferring embossed gold and silver films and transfer patterns on two sides of the PVC base layer respectively; s3: carrying out forming and cooling treatment on the PVC base layer subjected to the transfer embossing gold-silver film and transfer printing pattern treatment; s4: and (6) rolling. The embossing gold-silver film is transferred while transferring the patterns, so that the double-sided color effect can be displayed, the surface patterns are bright and beautiful, the appearance is attractive, the decorative effect is good, the embossing gold-silver film is soft and comfortable, the wear resistance is good, the water and oil resistance and the flatness are good, the production cost is low, and the production efficiency is high.)

1. The production process of the crown print transfer printing double-sided tablecloth is characterized in that: the method comprises the following steps: s1: manufacturing a PVC base layer; s2: transferring embossed gold and silver films and transfer patterns on two sides of the PVC base layer respectively; s3: carrying out forming and cooling treatment on the PVC base layer subjected to the transfer embossing gold-silver film and transfer printing pattern treatment; s4: and (6) rolling.

2. The process for producing crown print transfer double-sided tablecloth of claim 1, wherein: in S1, when the PVC base layer is manufactured, the PVC base layer comprises the following raw materials in parts by mass: 35-75 parts of dioctyl phthalate, 20-80 parts of PVC resin powder, 50-80 parts of calcium carbonate filler, 2-3 parts of heat stabilizer, 0.01-0.16 part of pigment powder, 0.01-0.15 part of titanium dioxide and 0.01-0.15 part of auxiliary agent; the manufacturing method of the PVC base layer comprises the following steps: adding the components into a polymerization reaction kettle filled with heavy oil as a solvent according to a certain proportion, heating to 195-200 ℃, stirring for 1-1.5 h, filtering and extruding to obtain the PVC surface layer; in S1, the oil content of the PVC resin powder is controlled to be between 75 Pa and 85 Pa, and the thickness of the PVC base layer is 0.20mm to 0.30 mm.

3. The process for producing crown print transfer double-sided tablecloth of claim 2, wherein: s2, the method for transferring the pattern on the PVC base layer comprises the steps of blade-coating one side of the PVC base layer with printing equipment to transfer release positioning glue once, wherein the glue dosage is less than or equal to 3 g/square meter, coloring the surface of the PET printing film, and transferring the pattern on the surface of the PVC base layer by a transfer molding non-stripping method of the PET printing film, wherein the transfer temperature is 80-130 ℃.

4. The process for producing crown print transfer double-sided tablecloth of claim 3, wherein: and S2, when the surface of the PET printing film is colored, the temperature of a hot air box is 30-60 ℃, the wind power is 0.3-1.5M/S, and the colored PET printing film is dried by a natural cooling air box with the wind power of 1.6-3.3M/S.

5. The process for producing crown print transfer double-sided tablecloth of claim 4, wherein: in S2, the transfer process sequentially passes through a first transfer laminating device and a second transfer laminating device; the temperature of the first transfer printing and attaching device is between 120 ℃ and 130 ℃, the rotating speed of the preheating roller is controlled to be 14.8M/Min to 34.8M/Min, the traction tension is 2.5 kg/cm to 3.5 kg/cm, and the coiling speed is 50M/Min to 80M/Min; the temperature of the second laminating device is controlled to be between 160 ℃ and 170 ℃, the rotating speed of the preheating roller is 14.8M/Min to 34.8M/Min, the traction tension is 2.5 kg/cm to 3.5 kg/cm, and the reeling speed is 20M/Min to 30M/Min.

6. The process for producing crown print transfer double-sided tablecloth of claim 5, wherein: in the S2 step, the gold and silver film is transferred and embossed by a first embossing and laminating device and a second embossing and laminating device in sequence; the first embossing laminating device has the temperature of 120-150 ℃, the preheating roller rotating speed of 7-9 m/min, the traction tension of 2.5 kg/cm-3.5 kg/cm and the coiling speed of 60-90 m/min; the temperature of a cooling roller of the first embossing laminating device is 8-10 ℃, the breadth shrinkage is less than or equal to 1cm, the rotating speed is 7-17 RPM/min, the low-speed rotating speed is 3-13 RPM/min, and the high-speed printing speed is 15-25 RPM/min; the temperature of the second embossing laminating device is 180-190 ℃, the laminating time is 40-45 s, the traction tension is 3.0 kg/4.0 kg/cm, the coiling speed is 20-25 m/min, and the embossing roller of the second embossing laminating device can be manually adjusted to move left and right by 10-20 mm and swing up and down by 8-15 mm.

7. The process for producing crown print transfer double-sided tablecloth of claim 6, wherein: in the S3, in the forming and cooling treatment process, a vat is used for preheating, the operating temperature of the vat is controlled to be 180-200 ℃, the temperature is kept constant to be 180-220 ℃, the lifting stroke is 20-30 CM, and the distance between an embossing roller and the vat is 10-14 CM; and then four groups of cooling rollers are adopted for cooling forming, the temperature of the first group of cooling rollers is 2-8 ℃, the temperature of each group is increased by 2-3 ℃ in sequence, the frozen water is recycled, and the linear speed control of the cooling rollers is synchronous with the first transfer printing and laminating device, the second transfer printing and laminating device, the first embossing and laminating device and the second embossing and laminating device.

8. The process for producing crown print transfer double-sided tablecloth of claim 7, wherein: in S3, when the vat is preheated, the thermalization time of the PVC base layer is 40S-45S, and the temperature is 180-190 ℃.

9. The process for producing crown print transfer double-sided tablecloth of claim 8, wherein: in S4, in the winding process, pressures of a rubber winding roller, a silicone winding roller and a bending winding roller are all 3 kg/4 kg/cm, winding traction tension is 2.5 kg/3.5 kg/cm, and winding speed is 10 m/min-15 m/min.

10. Two-sided tablecloth of crown seal rendition, its characterized in that: the crown printing transfer printing double-sided tablecloth is produced by adopting the production process of the crown printing transfer printing double-sided tablecloth of any one of claims 1 to 9.

Technical Field

The invention relates to the field of household articles, in particular to a crown print transfer printing double-sided tablecloth and a production process thereof.

Background

The tablecloth is an article which is covered on a table or a tabletop and used for preventing dirt or increasing the appearance. The plastic material is classified according to production process and mainly divided into two major types, namely plastic type and textile type, wherein the plastic type comprises polyvinyl tablecloth such as PVC tablecloth, EVA tablecloth, PEVA tablecloth, pyrograph tablecloth, cotton substrate PVC tablecloth and PP tablecloth, and cast film tablecloth. The PVC tablecloth is widely applied to daily life due to the reasons of easy cleaning, convenience, practicability and the like.

In order to improve the decoration performance of the traditional PVC tablecloth, two methods are provided, one is a method of forming bright-colored prints on the surface of PVC by a thermal transfer printing method, and the other is a method of ironing gold and silver on the surface of PVC. The tablecloth obtained by the first method. Separately, the two decorative effects are rigid, and can only show the single-side coloring effect, and the prior art lacks a tablecloth which has two decorative methods at the same time, is more attractive and has a better decorative effect.

Disclosure of Invention

In order to solve the problems, the invention provides the crown print transfer printing double-sided tablecloth which can transfer the embossing gold and silver film on one side of a transfer printing pattern, can show double-sided color effect, has bright and bright surface pattern, beautiful appearance, good decoration effect, softness, comfort, good wear resistance, water resistance, oil resistance, good flatness, low production cost and high production efficiency and the production process thereof.

The technical scheme adopted by the invention is as follows: the production process of the crown print transfer printing double-sided tablecloth comprises the following steps: s1: manufacturing a PVC base layer; s2: transferring embossed gold and silver films and transfer patterns on two sides of the PVC base layer respectively; s3: carrying out forming and cooling treatment on the PVC base layer subjected to the transfer embossing gold-silver film and transfer printing pattern treatment; s4: and (6) rolling.

The technical scheme is further improved in that in S1, when the PVC base layer is manufactured, the PVC base layer comprises the following raw materials in parts by mass: 35-75 parts of dioctyl phthalate, 20-80 parts of PVC resin powder, 50-80 parts of calcium carbonate filler, 2-3 parts of heat stabilizer, 0.01-0.16 part of pigment powder, 0.01-0.15 part of titanium dioxide and 0.01-0.15 part of auxiliary agent; the manufacturing method of the PVC base layer comprises the following steps: adding the components into a polymerization reaction kettle filled with heavy oil as a solvent according to a certain proportion, heating to 195-200 ℃, stirring for 1-1.5 h, filtering and extruding to obtain the PVC surface layer; in S1, the oil content of the PVC resin powder is controlled to be between 75 Pa and 85 Pa, and the thickness of the PVC base layer is 0.20mm to 0.30 mm.

The technical scheme is further improved in that in S2, the method for transferring the pattern on the PVC base layer comprises the steps of firstly carrying out blade coating on one side of the PVC base layer by using printing equipment for once transfer release positioning glue, wherein the using amount of the glue is less than or equal to 3 g/square meter, then coloring the surface of the PET printing film, and then transferring the pattern on the surface of the PVC base layer by adopting a transfer molding non-peeling method of the PET printing film, wherein the transfer temperature is 80-130 ℃.

The technical scheme is further improved in that in S2, when the surface of the PET printing film is colored, the temperature of a hot air box is 30-60 ℃, the wind power is 0.3-1.5M/S, and the colored PET printing film is dried by a natural cooling air box with the wind power of 1.6-3.3M/S.

The technical proposal is further improved in that in S2, the transfer process sequentially passes through a first transfer laminating device and a second transfer laminating device; the temperature of the first transfer printing and attaching device is between 120 ℃ and 130 ℃, the rotating speed of the preheating roller is controlled to be 14.8M/Min to 34.8M/Min, the traction tension is 2.5 kg/cm to 3.5 kg/cm, and the coiling speed is 50M/Min to 80M/Min; the temperature of the second laminating device is controlled to be between 160 ℃ and 170 ℃, the rotating speed of the preheating roller is 14.8M/Min to 34.8M/Min, the traction tension is 2.5 kg/cm to 3.5 kg/cm, and the reeling speed is 20M/Min to 30M/Min.

The technical scheme is further improved in that in S2, the gold and silver film transfer embossing process sequentially passes through a first embossing and laminating device and a second embossing and laminating device; the first embossing laminating device has the temperature of 120-150 ℃, the preheating roller rotating speed of 7-9 m/min, the traction tension of 2.5 kg/cm-3.5 kg/cm and the coiling speed of 60-90 m/min; the temperature of a cooling roller of the first embossing laminating device is 8-10 ℃, the breadth shrinkage is less than or equal to 1cm, the rotating speed is 7-17 RPM/min, the low-speed rotating speed is 3-13 RPM/min, and the high-speed printing speed is 15-25 RPM/min; the temperature of the second embossing laminating device is 180-190 ℃, the laminating time is 40-45 s, the traction tension is 3.0 kg/4.0 kg/cm, the coiling speed is 20-25 m/min, and the embossing roller of the second embossing laminating device can be manually adjusted to move left and right by 10-20 mm and swing up and down by 8-15 mm.

The technical scheme is further improved in that in S3, in the forming and cooling treatment process, a large cylinder is used for preheating, the operating temperature of the large cylinder is controlled to be 180-200 ℃, the constant temperature is 180-220 ℃, the lifting stroke is 20-30 CM, and the distance between an embossing roller and the large cylinder is 10-14 CM; and then four groups of cooling rollers are adopted for cooling forming, the temperature of the first group of cooling rollers is 2-8 ℃, the temperature of each group is increased by 2-3 ℃ in sequence, the frozen water is recycled, and the linear speed control of the cooling rollers is synchronous with the first transfer printing and laminating device, the second transfer printing and laminating device, the first embossing and laminating device and the second embossing and laminating device.

The technical scheme is further improved in that in S3, when the vat is preheated, the thermalization time of the PVC base layer is 40S-45S, and the temperature is 180-190 ℃.

According to the technical scheme, in the S4, in the winding process, the pressures of the winding rubber roller, the winding silica gel roller and the winding bending roller are all 3 kg/4 kg/cm, the winding traction tension is 2.5 kg/cm/3.5 kg/cm, and the winding speed is 10 m/min-15 m/min.

The crown print transfer printing double-sided tablecloth is manufactured by adopting the production process of the crown print transfer printing double-sided tablecloth of any one of claims 1 to 9.

The invention has the beneficial effects that:

1. on one hand, the production process of the invention simultaneously transfers the embossed gold-silver film and the transfer printing pattern, and has the advantages of simple production process, low production cost and high production efficiency. In the second aspect, the tablecloth prepared by the process has the advantages of transfer printing of patterns on one side and transfer embossing of the gold-silver film on the other side, double-sided color effect, bright and beautiful surface patterns, attractive appearance, good decorative effect, softness, comfort, good wear resistance, water and oil resistance and good flatness.

2. The formula of the PVC base layer is adopted, the prepared tablecloth has the effects of environmental protection, no toxicity, high cold resistance, static resistance and flame retardance, and excellent physical and chemical properties, and the flexibility of the product is ensured by the arrangement of active calcium with the gram weight of 280 plus 350 g/square meter. In addition, the formulation of the PVC base layer selects a mixture of calcium carbonate filler, which is composed of light calcium carbonate with the particle size of 10-50 μm and modified by higher fatty acid salt and heavy calcium carbonate with the particle size of 100-500 μm and modified by higher fatty acid ester in the weight ratio of 0.5-1.5: 1. By controlling the particle size of the light calcium carbonate to be 10-50 mu m, the crystal structure and the surface electronic structure of the light calcium carbonate are changed, and the quantum size effect, the small size effect, the surface effect and the macroscopic quantum effect which are not possessed by the common heavy calcium carbonate are generated, so that the light calcium carbonate has good toughening and reinforcing effects, and can improve the bending strength, the bending elastic modulus, the thermal deformation temperature and the dimensional stability by adding the light calcium carbonate into the PVC resin; the good compatibility of the filling agent and the resin is the key for playing the role and controlling the addition amount, and the light calcium carbonate modified by the higher fatty acid salt can improve the compatibility of the light calcium carbonate and the PVC resin, thereby improving the strength of the material and leading the mechanical property of the prepared tablecloth to be better. The heat stabilizer adopts calcium stearate, barium stearate and zinc stearate as main heat stabilizers, adopts hydrotalcite as an auxiliary heat stabilizer, and combines the main heat stabilizer and the auxiliary heat stabilizer, so that the material has excellent heat stability and high-efficiency weather resistance, and can have good dispersibility, compatibility and processing fluidity in the processing process, thereby ensuring that the processed PVC base layer has better integral uniformity and consistency. The addition of dioctyl phthalate increases the plasticity of PVC, and the prepared product has good flexibility. The auxiliary agent comprises an ultraviolet resistant agent and an antioxidant in a weight ratio of 1.2: 1, can effectively prevent the pattern on the tablecloth from fading or aging, and is favorable for keeping the lasting aesthetic property of the pattern.

3. Before heat transfer printing, one side of the PVC base layer is coated with once transfer release positioning glue by using printing equipment in a blade mode, the using amount of the glue is not more than 3 g/square meter, and the problem of concave-convex layer generation when the PVC base layer is subjected to transfer embossing of gold and silver films is solved; when in heat transfer printing, the pattern is transferred on the surface of the PVC base layer by adopting a PET printing film transfer printing forming non-stripping method, the pattern color on the surface of the PVC base layer is more gorgeous, the adhesive force is stronger, the problem of ink reverse adhesion is avoided, the transfer printing temperature is 80-130 ℃, and the transfer printing effect is good. The non-peeling PET film is adopted as a heat pasting carrier, high-temperature transfer is carried out, the release positioning glue is pasted as an auxiliary technology, and the PVC layer is guaranteed to have no deformation and no concave-convex in the heat transfer printing process, so that the surface of the PVC layer is smooth and the pasting effect is good when the PVC layer is pasted.

4. And S2, when the surface of the PET printing film is colored, the temperature of a hot air box is 30-60 ℃, the wind power is 0.3-1.5M/S, and the colored PET printing film is dried by a natural cooling air box with the wind power of 1.6-3.3M/S. Can ensure that the coloring on the surface of the PET printing film is uniform and consistent.

5. In S2, transfer printing and attaching are carried out through two transfer printing and attaching devices, so that the transfer printing effect is better, the layers are obvious and strong in stereoscopic impression, and the patterns of the two devices can be accurately registered. The internal structure of the material is changed through multiple times of high temperature and cooling, the pattern of the product is prevented from fading, and the color fastness of the product is higher. In S2, embossing and laminating are carried out through two embossing laminating devices when the embossing gold and silver film is transferred, and the effect of transferring the embossing gold and silver film is good. The printing process is a process of coloring the surface of the gold and silver film transfer embossing, wherein the low-speed printing rotating speed is 10 rpm/min-20 rpm/min, the high-speed printing rotating speed is 15 rpm/min-25 rpm/min, the temperature of a hot air box is 65-70 ℃, the wind power is 0.3 m/s-1.5 m/s, and the wind power of a natural cold air box is 1.6 m/s-3.3 m/s, and drying is carried out. The gold-silver film is transferred on the surface of the product, so that the gold-silver film is locally adhered on the surface of the product, the gold stamping effect is realized, the adhesive force of the printing ink is improved, the anti-fading capability is realized, the printing ink is full in coloring, the patterns are vivid, the high-temperature high-pressure non-deforming is realized, the color and luster of the product are kept for a long time, and the anti-aging capability is

6. In the S3, in the forming and cooling treatment process, a vat is used for preheating, the operating temperature of the vat is controlled to be 180-200 ℃, the temperature is kept constant to be 180-220 ℃, the lifting stroke is 20-30 CM, and the distance between an embossing roller and the vat is 10-14 CM; and then four groups of cooling rollers are adopted for cooling forming, the temperature of the first group of cooling rollers is 2-8 ℃, the temperature of each group is increased by 2-3 ℃ in sequence, and the frozen water is recycled. Preheating is carried out at the forming stage, and then cooling forming is carried out, so that the transfer printing patterns on the PVC base layer and the embossed gold-silver film are more stably attached, and the product has a good three-dimensional effect. The cooling roller linear speed control is synchronous with the first transfer printing and laminating device, the second transfer printing and laminating device, the first embossing and laminating device and the second embossing and laminating device, so that the synchronization of different sections in the production process is realized, the whole process is convenient to smoothly carry out, and the production efficiency is high.

7. In S3, when the vat is preheated, the thermalization time of the PVC base layer is 40S-45S, and the temperature is 180-190 ℃. The whole heating process is carried out in a high-temperature heat conduction oil closed circulation mode, and the temperature of each preheating cylinder can be adjusted electromagnetically according to the type, thickness and width of a product and the effect of the product. The selection of the thermalization time and the temperature ensures that the PVC base layer is hot-cooked but can not deform and stretch, thereby being convenient for the efficient implementation of the subsequent cooling molding.

8. In the winding process, pressures of the winding rubber roller, the winding silica gel roller and the winding bending roller are all 3 kg/4 kg/cm, and the winding traction tension is 2.5 kg/3.5 kg/cm and the winding speed is 10 m/min-15 m/min. In the whole production process, the speed of the rolling process and other processes is synchronous, so that the production process of the product is carried out stably and efficiently.

9. The crown print transfer printing double-sided tablecloth prepared by the process has the advantages that the embossed gold-silver film is transferred on one side of a transfer printing pattern and the other side of the transfer printing pattern, the double-sided color effect can be displayed, the surface pattern is bright and beautiful, the appearance is attractive, the decoration effect is good, and the crown print transfer printing double-sided tablecloth is soft and comfortable, has good wear resistance, is waterproof and oilproof and has good flatness.

Drawings

FIG. 1 is a process flow diagram of the present invention.

Detailed Description

The present invention will be further described with reference to the following examples.