阅读说明：本技术 水性绒面电子包装材料的制作方法 (Method for manufacturing water-based suede electronic packaging material ) 是由 吴平 张凤 陈利安 宋春燕 王年罗 朱永芳 魏芬 于 2021-08-23 设计创作，主要内容包括：本发明公开了一种水性绒面电子包装材料的制作方法的生产工艺,将150份水性聚氨脂湿法树脂加入0.5-1份分散剂后缓慢加入10-15重量份木粉搅匀；再加入4-6份发泡剂和0.5-2份无卤水性色浆搅匀,然后缓慢加入1-2份增稠剂使浆料的粘度指标达到1500-2000CPS；并将其发泡到1.5-1.8倍率后涂刮在绒面基布毛面上,经酸水凝固、轧水、水洗、干燥和表面磨皮得到绒感半成品；将100份水性表处料、0.5-3.0份助剂和0.5-5份无卤水性色浆混匀后加入1-2份增稠剂,增稠至2000-2500CPS粘度形成表面处理剂,用表面处理剂对半成品进行辊涂并烘干,本发明制得的成品绒感细腻、透气,耐磨防刮。(The invention discloses a production process of a water-based suede electronic packaging material, which comprises the steps of adding 0.5-1 part of dispersant into 150 parts of water-based polyurethane wet-process resin, slowly adding 10-15 parts of wood powder by weight, and uniformly stirring; then adding 4-6 parts of foaming agent and 0.5-2 parts of halogen-free aqueous color paste, stirring uniformly, and then slowly adding 1-2 parts of thickening agent to ensure that the viscosity index of the paste reaches 1500-2000 CPS; foaming to 1.5-1.8 times, then coating on the rough surface of the base fabric, solidifying with acid water, squeezing, washing with water, drying, and grinding the surface to obtain semi-finished product; uniformly mixing 100 parts of aqueous surface treatment material, 0.5-3.0 parts of auxiliary agent and 0.5-5 parts of halogen-free aqueous color paste, adding 1-2 parts of thickening agent, thickening to the viscosity of 2000-2500CPS to form a surface treatment agent, and performing roller coating and drying on the semi-finished product by using the surface treatment agent.)

1. A method for manufacturing a water-based suede electronic packaging material is characterized by comprising the following steps: the method comprises the following specific steps:

the method comprises the following steps: mixing ingredients by a wet method:

a. firstly, adding 0.5-1 part by weight of dispersant into 150 parts by weight of waterborne polyurethane wet-process resin, then slowly adding 10-15 parts by weight of wood flour, and uniformly stirring;

b. b, adding 4-6 parts by weight of foaming agent into the mixture obtained in the step a, stirring uniformly, adding 0.5-2 parts by weight of halogen-free aqueous color paste, stirring uniformly, and slowly adding 1-2 parts by weight of thickening agent, and stirring uniformly;

c. b, performing viscosity detection on the mixture obtained in the step b, and filtering the mixture for later use when the viscosity index of the mixture reaches 1500-2000 CPS;

step two: and (3) wet bass production:

ironing the suede base cloth, foaming the slurry filtered in the step c to a multiplying power of 1.5-1.8 through a foaming machine, then coating the foamed slurry on the wool fibers of the suede base cloth, immersing the wool fibers into an acid water solution with the mass percentage concentration of 4.5-5% for solidification, and then sequentially carrying out at least one rolling procedure, a water washing procedure and a drying procedure to obtain wet-process bass;

step three: grinding the skin:

carrying out surface buffing on the wet-process bass obtained in the step two by using abrasive paper to obtain a semi-finished product with surface downy feeling;

step four: surface treating agent compounding:

mixing 100 parts by weight of aqueous surface treatment material, 0.5-3.0 parts by weight of auxiliary agent and 0.5-5 parts by weight of halogen-free aqueous color paste, uniformly stirring, adding 1-2 parts by weight of thickening agent, and thickening to the viscosity of 2000CPS and 2500 CPS;

step five: surface treatment:

performing roller coating treatment on the surface of the semi-finished product with the skin ground in the step three by using the surface treating agent prepared in the step four and an anilox roller, and then drying to obtain a finished product;

step six: and (6) inspecting a finished product.

2. The production process of the manufacturing method of the water-based suede electronic packaging material according to claim 1, wherein the production process comprises the following steps: in the step a of the step one, 150 parts by weight of aqueous polyurethane wet-process resin is added into a reaction kettle, then 0.5 part by weight of dispersant is added, then 15 parts by weight of wood powder is slowly added and stirred, and the reaction kettle is stirred for 30 minutes at the rotating speed of 400-600 revolutions per minute.

3. The production process of the manufacturing method of the water-based suede electronic packaging material according to claim 1, wherein the production process comprises the following steps: and c, after the foaming agent is added in the steps of the step one b, the stirring speed of the reaction kettle is reduced to 300-400 rpm, and the halogen-free aqueous color paste is added after stirring for 5 minutes.

4. The production process of the manufacturing method of the water-based suede electronic packaging material according to claim 1 or 3, wherein the production process comprises the following steps: and in the step one b, the adding speed is controlled by observing the dispersion condition in the thickening process of slowly adding the thickening agent, and the rotating speed of the reaction kettle is controlled at 600 revolutions per minute in the thickening process.

5. The production process of the manufacturing method of the water-based suede electronic packaging material according to claim 1, wherein the production process comprises the following steps: and in the second step, a 130-degree hot ironing wheel is adopted to iron the suede base cloth.

6. The production process of the manufacturing method of the water-based suede electronic packaging material according to claim 1, wherein the production process comprises the following steps: and the acid water solution in the second step is oxalic acid water solution or formic acid water solution.

7. The production process of the manufacturing method of the water-based suede electronic packaging material according to claim 1, wherein the production process comprises the following steps: the drying temperature of the drying procedure in the second step is 130-160 ℃, and the vehicle speed is 12-14 m/min.

8. The production process of the manufacturing method of the water-based suede electronic packaging material according to claim 1, wherein the production process comprises the following steps: and in the third step, 180-mesh sand paper is adopted to perform surface buffing on the wet bass.

9. The production process of the manufacturing method of the water-based suede electronic packaging material according to claim 1, wherein the production process comprises the following steps: in the fourth step, the aqueous surface treatment material, the auxiliary agent and the halogen-free aqueous color paste are mixed in the reaction kettle and then stirred for 10-15 minutes, and the rotating speed of the reaction kettle is 300-500 turns.

10. The production process of the manufacturing method of the water-based suede electronic packaging material according to claim 1, wherein the production process comprises the following steps: and fifthly, performing roller coating treatment by adopting a 100-140-mesh wire roller, and drying in an oven at the temperature of 120-150 ℃ after surface treatment to obtain a finished product, wherein the speed is 15-18 m/min.

Technical Field

The invention relates to the field of synthetic leather manufacturing, in particular to a manufacturing method of a water-based suede electronic packaging material.

Background

Because electronic products are easy to wear and scratch, the prior electronic products are often packaged by using a packaging material with a suede, such as knitted flannelette and suede microfiber leather, wherein the knitted flannelette is relatively loose in texture and easy to fall wool and the like, so that the surface of the electronic product is stuck with flock, and the appearance and the function of the electronic product are affected, the prior suede microfiber leather is improved in texture relative to the knitted flannelette, is more compact in texture and difficult to fall wool, and is mainly formed by impregnating non-woven fabric with impregnating materials such as PVA (polyvinyl alcohol) or polyurethane and then carrying out alkali decrement, washing, drying and sanding, although the texture of the suede microfiber leather is more compact relative to the common flannelette, the suede microfiber leather has no elasticity in the thickness direction, poor skin-friendliness and poor air permeability, and is not beneficial to shock absorption and adaptation of the electronic products to various environments in the transportation process, and the wear resistance is insufficient, and the wear-resistant rubber is easy to wear out after long-term use.

Disclosure of Invention

In order to overcome the defects, the invention provides a method for manufacturing the water-based suede electronic packaging material, and the water-based suede electronic packaging material produced by the method has the advantages of fine and smooth suede feeling, and good skin-friendly property and air permeability.

The invention adopts the technical scheme for solving the technical problems that: a method for manufacturing a water-based suede electronic packaging material comprises the following specific steps:

the method comprises the following steps: mixing ingredients by a wet method:

a. firstly, adding 0.5-1 part by weight of dispersant into 150 parts by weight of waterborne polyurethane wet-process resin, then slowly adding 10-15 parts by weight of wood flour, and uniformly stirring;

b. b, adding 4-6 parts by weight of foaming agent into the mixture obtained in the step a, stirring uniformly, adding 0.5-2 parts by weight of halogen-free aqueous color paste, stirring uniformly, and slowly adding 1-2 parts by weight of thickening agent, and stirring uniformly;

c. b, performing viscosity detection on the mixture obtained in the step b, and filtering the mixture for later use when the viscosity index of the mixture reaches 1500-2000 CPS;

step two: and (3) wet bass production:

ironing the suede base cloth, foaming the slurry filtered in the step c to a multiplying power of 1.5-1.8 through a foaming machine, then coating the foamed slurry on the wool fibers of the suede base cloth, immersing the wool fibers into an acid water solution with the mass percentage concentration of 4.5-5% for solidification, and then sequentially carrying out at least one rolling procedure, a water washing procedure and a drying procedure to obtain wet-process bass;

step three: grinding the skin:

carrying out surface buffing on the wet-process bass obtained in the step two by using abrasive paper to obtain a semi-finished product with surface downy feeling;

step four: surface treating agent compounding:

mixing 100 parts by weight of aqueous surface treatment material, 0.5-3.0 parts by weight of auxiliary agent and 0.5-5 parts by weight of halogen-free aqueous color paste, uniformly stirring, adding 1-2 parts by weight of thickening agent, and thickening to the viscosity of 2000CPS and 2500 CPS;

step five: surface treatment:

performing roller coating treatment on the surface of the semi-finished product with the skin ground in the step three by using the surface treating agent prepared in the step four and an anilox roller, and then drying to obtain a finished product;

step six: and (6) inspecting a finished product.

As a further improvement of the invention, in the step a of the step one, 150 parts by weight of aqueous polyurethane wet-process resin is added into a reaction kettle, then 0.5 part by weight of dispersant is added, then 15 parts by weight of wood flour is slowly added and stirred, and the reaction kettle is stirred for 30 minutes at the rotating speed of 400-600 revolutions per minute.

As a further improvement of the invention, after the foaming agent is added in the first step b, the stirring speed of the reaction kettle is reduced to 300-400 rpm, and the halogen-free aqueous color paste is added after stirring for 5 minutes.

As a further improvement of the invention, in the step one b, the thickening agent is slowly added in a step-by-step manner, the adding speed is controlled by observing the dispersion condition in the thickening process, and the rotating speed of the reaction kettle in the thickening agent adding process is controlled at 600 revolutions per minute (500 rpm).

As a further improvement of the invention, in the second step, a 130-degree hot ironing wheel is adopted to iron the suede base cloth.

As a further improvement of the invention, the acid aqueous solution in the second step is oxalic acid aqueous solution or formic acid aqueous solution.

As a further improvement of the invention, the drying temperature of the drying procedure in the step two is 130-160 ℃, and the vehicle speed is 12-14 m/min.

As a further improvement of the invention, in the third step, 180-mesh sand paper is used for surface polishing of the wet bass.

As a further improvement of the invention, in the fourth step, the aqueous surface treatment material, the auxiliary agent and the halogen-free aqueous color paste are mixed in the reaction kettle and then stirred for 10-15 minutes, and the rotation speed of the reaction kettle is 300-500 revolutions.

As a further improvement of the invention, in the fifth step, a 100-140 mesh wire roller is adopted for roller coating treatment, and the finished product is obtained by drying in an oven at the temperature of 120-150 ℃ after surface treatment, wherein the speed of the vehicle is 15-18 m/min.

The invention has the beneficial effects that: the water-scraping foaming resin is directly coated on the suede base fabric, and the suede surface treatment process is carried out for buffing treatment, so that the surface of a finished product prepared by the method has fine and smooth suede feeling and skin-friendly feeling; the water-based suede electronic packaging material has the characteristics of wear resistance and scratch resistance, is not easy to damage after long-term use, and can be used for packaging various electronic products.

Drawings

FIG. 1 is a structure diagram of an interlayer of a waterborne suede electronic packaging material prepared by the present invention.

Suede base cloth layer-1 wet method bass layer-2 surface treatment layer-3

Detailed Description

Example (b): a production process of a manufacturing method of a water-based suede electronic packaging material comprises the following specific steps:

the method comprises the following steps: mixing ingredients by a wet method:

the wet process materials were prepared as follows:

a. adding the aqueous polyurethane wet-process resin into a reaction kettle, then adding a dispersing agent, then slowly adding the wood powder, and stirring the reaction kettle at the speed of 400 plus materials and 600 revolutions per minute for 30 minutes;

b. after the aqueous polyurethane wet-process resin and the wood powder are fully and uniformly stirred, adding a foaming agent according to the formula, stirring for about 5 minutes, reducing the stirring speed to 400 revolutions per minute, adding the halogen-free aqueous color paste after uniformly stirring, fully and uniformly stirring, starting to slowly add the thickening agent, observing the dispersion condition in the thickening process to control the adding speed, and controlling the rotating speed of the reaction kettle at 600 revolutions per minute;

c. after all the materials are added, the mixture is thickened to 1500 + 2000CPS, and is filtered for later use;

step two, wet bass production:

ironing the suede base cloth by a hot ironing wheel with the temperature of 130 ℃, foaming the filtered slurry to the multiplying power of 1.5-1.8 by a foaming machine, then coating the foamed slurry on the suede base cloth, then immersing the suede base cloth in an acid water solution with the mass percentage concentration of 4.5-5% for solidification, then performing at least one water rolling procedure, and then performing water washing and drying to obtain a wet-method bass, wherein the drying temperature is 130-;

step three, grinding the skin:

the surface of the prepared wet-process bass is ground by 180-mesh abrasive paper to obtain a semi-finished product with surface downy feeling;

step four: surface treating agent compounding:

wet impregnation stock preparation was carried out as follows:

mixing the water-based surface treatment material, the auxiliary agent and the halogen-free water-based color paste in a reaction kettle, stirring for 10-15 minutes at the rotating speed of 300-.

Step five: surface treatment:

and (3) performing roller coating treatment on the surface of the ground semi-finished product by using the prepared surface treating agent and adopting a 100-140-mesh screen roller, and then drying by adopting an oven to obtain the finished product, wherein the temperature of the oven is 120-.

Step six: and (5) inspecting the finished product, and inspecting the appearance and the hand feeling.

The finished product performance test data are as follows:

1. carrying out wear-resisting scratch-resisting test on the water-based suede electronic packaging material by adopting a No. 22 grinding wheel loaded with 1 KG:

and (4) testing standard: the product is qualified after 1000 turns without breakage;

the water-based suede electronic packaging material with the treated surface can reach 2000 turns without damage and is far higher than the qualified standard.

2. The conventional suede electronic packaging material and the water-based suede electronic packaging material obtained by the invention are tested by adopting a positive cup calcium chloride method, and the test data are as follows:

conventional suede electronic packaging material 1000-³·24H；

3000-4000g/m aqueous suede electronic packaging material obtained by the invention³24H, the water-based suede electronic packaging material obtained by the invention immediately permeates after dripping water on the surface.