CN102909812A

CN102909812A - Fabrication process of PVC homogeneous core coil floor

Info

Publication number: CN102909812A
Application number: CN201210376824XA
Authority: CN
Inventors: 许雪平; 王先美
Original assignee: JIANGSU HUAJING FLOOR TECHNOLOGY CO LTD
Current assignee: JIANGSU HUAJING FLOOR TECHNOLOGY CO LTD
Priority date: 2012-09-29
Filing date: 2012-09-29
Publication date: 2013-02-06
Anticipated expiration: 2032-09-29
Also published as: CN102909812B

Abstract

The invention relates to the technical field of fabrication of a PVC (polyvinyl chloride) homogeneous core coil floor, in particular to a fabrication process of the PVC homogeneous core coil floor. The fabrication process comprises the following steps: fabricating PVC particles through a PVC pelleting process, putting the PVC particles into a calender to be calendered to a floor blank, vulcanizing and forming with a drum vulcanizer, and conducting aftertreatment. The fabrication process has the benefits that the fabrication process is simple, the stability is better, and the fabricated floor is longer in service life, better in stereoscopic effect, natural, elegant and suitable for public places with large pedestrian volume such as large malls, hospitals and subways, and has clearer and more natural patterns.

Description

The preparation technology of the saturating core coiled material floor of PVC homogeneity

Technical field

The present invention relates to the preparing technical field of the saturating core coiled material floor of PVC homogeneity, the preparation technology of the saturating core coiled material floor of especially a kind of PVC homogeneity.

Background technology

The existing preparation technology on PVC floor comprises:

1, PVC Multi-layer thermal composite algorithm: at present, what used in a large number in present technology is the PVC coiled material floor that PVC Multi-layer thermal composite algorithm is made, in public places such as many hospitals, airport, megastore use is arranged, because it is moderate that the PVC composite sheet material has hardness, there is resilience to also have sound insulation, anti-skidding, moistureproof, warming effect.But also there is following shortcoming in it: wearability is general, and is compound not firm, easily layering, and weld seam is insecure, and life cycle is short.

2, be coated with the method for scraping: be coated with PVC coiled material floor that the method for scraping makes and be evenly be coated with on the base material carry out PVC after, through the baking oven baking, make PVC fully plastify the floor of rear formation, its shortcoming: intensity difference, wear no resistance, anti-pollution characteristic is poor.

3; twice rolling process: the PVC coiled material of twice rolling process making; it is that PVC particle with different colours mixes in mixer by formula rate; then by high-power single screw extrusion machine the PVC particle is puddled; gradually plasticizing; granulation; then deliver to calender by conveyer again and be squeezed into just base of coiled material; coiled material just base enters the electrical heating baking oven, makes just base heating plasticizing of coiled material, enters extrusion modling in the secondary calender again; the PVC coiled material that this method is made; the product plasticizing effect is good, and packing is high, but the energy consumption of its technique is high; the pattern of product is not gorgeous; the pattern third dimension is not strong, and this series products mat formation complete after, climate; after the variations in temperature; steam is not easy distribution, easily bubble.

Summary of the invention

The technical problem to be solved in the present invention is: the preparation technology of the saturating core coiled material floor of a kind of PVC homogeneity is provided, simplifies technique, improve technology stability and product quality.

The technical solution adopted for the present invention to solve the technical problems is: the preparation technology of the saturating core coiled material floor of a kind of PVC homogeneity has following steps:

A) by the PVC prilling, preparation PVC particle;

B) the PVC particle is dropped in the calender, be rolled into just base of floor;

C) by the drum vulcanizer sulfidization molding;

D) post processing.

Step a is specially:

1) raw material PVC, plasticizer, stabilizing agent, lubricant, colorant, inserts are dropped into high-speed mixer by prescription, enter low speed mixer after the mixing and stir, disperse to make the look mother;

2) with raw material PVC, plasticizer, inserts, be transported to after the look mother that first step is made mixes according to proportioning and enter again the single screw extrusion machine granulation after double screw extruder plastifies;

The PVC particle of two or more color of 3) second step being done adds on the mixer by a certain percentage, mixes, and then enters the single screw extrusion machine granulation, prepares double-colored or polychrome PVC particle.

For improving the surface effect on floor, further limit, between step b and c, increase and spread colored step.

Further limit, the rolling temperature of calender is 170 ~ 180 degree, is rolled into the first base in floor and carried out preheating before entering drum vulcanizer, and preheat temperature is 160 ~ 180 degree, and the curing temperature of drum vulcanizer is 160 ~ 180 degree, cure time 8 ~ 10min.

Further limit, drum vulcanizer comprises at least one vulcanized drum and two cover sulfuration band EGRs, sulfuration comprises at least two rollers and a sulfuration band that is enclosed within on the roller with EGR, two covers vulcanize with the partial vulcanization band front of EGR and the front is stacked and on vulcanized drum, pressurization passageway is vulcanized in formation between two sulfurations are with.

Further limit, vulcanized drum has two, and two vulcanized drums lay respectively at the both sides of stacked sulfuration band.

The invention has the beneficial effects as follows: manufacture craft is simple, and stability is better, the floor longer service life that makes, and pattern is clear and natural more, and third dimension is stronger, and is naturally generous, is more suitable in the megastore, the large public place uses of flow of the people such as hospital, subway.

Description of drawings

The present invention is further described below in conjunction with drawings and Examples.

Fig. 1 is process chart of the present invention;

Fig. 2 is the structural representation of drum vulcanizer of the present invention;

Among the figure, 1. vulcanized drum, 2. roller, 3. sulfuration band.

The specific embodiment

As shown in Figure 1, the preparation technology of the saturating core coiled material floor of a kind of PVC homogeneity is characterized in that: have following steps:

A) raw material PVC, plasticizer, stabilizing agent, lubricant, colorant, inserts are dropped into high-speed mixer by prescription, enter low speed mixer after the mixing and stir, disperse to make the look mother;

B) with raw material PVC, plasticizer, inserts, the look mother that first step is made is transported in the container by screw rod conveyor, through automatic gauging instrument, be transported to after mixing according to proportioning and enter again single screw extrusion machine after the double screw extruder plasticizing and extrude, and by eccentric water smoke cutting, particle diameter 3 ~ the 7mm that is cut into, the PVC particle is collected in the two stage cyclone cooling;

The PVC particle of two or more color of c) second step being done adds on the mixer by a certain percentage, mixes, and then enters the single screw extrusion machine granulation, prepares double-colored or polychrome PVC particle;

D) the PVC particle is dropped in the calender by conveyer belt, be rolled into just base of floor, calender is specially two-roll calendar, and the rolling temperature of calender is 170 ~ 180 degree;

E) spread flower: spreading colored step at first is that band look PVC particle is pulverized, then with the tiny PVC mix particles after the pulverizing of different colours, mix rear heating and to spreading colored machine feed, spreading colored machine evenly rotates, with tiny PVC particle spreading at the first base in floor that leads on the conduction band of vulcanizer, intersperse out abundanter, beautiful pattern;

F) be rolled into the first base in floor and carried out preheating before entering drum vulcanizer, preheat temperature is 160 ~ 180 degree;

G) by the drum vulcanizer sulfidization molding, the curing temperature of drum vulcanizer is 160 ~ 180 degree, and cure time 8 ~ 10min is further plastified floor coil, and packing is higher, can reach the wear-resisting grade of European standard T level;

H) post processing: with the well rear coiled material cooling of g step sulfidization molding, as required, do not prevent that it from having poor will the passing through of thickness to polish, the decorative pattern that can need at the back obsession as required behind the relatively uniform coiled material of a thickness is arranged, can reach better guarantee in order to make product, anti-fouling effect also will be coated with surface conditioning agent at floor surface, the ultraviolet ray oven dry, rolling is cut edge in cooling.

By the saturating core coiled material floor of PVC homogeneity that above method is produced, its characteristics are: the floor all is a kind of material by face on earth, and the flower type is the same, can by reusing after the surface finish waxing, greatly improve the service life on floor.

The drum vulcanizer that uses among this preparation method, comprise at least one vulcanized drum 1 and two cover sulfuration band EGRs, sulfuration comprises that with EGR at least two rollers 2 and a sulfuration that is enclosed within on the roller 2 be with 3, two cover sulfurations are positive and positive stacked and on vulcanized drum 1 with the partial vulcanization band 3 of EGR, form the sulfuration pressurization passageway between two sulfurations are with 3.

As shown in Figure 2, vulcanized drum 1 has two, and two vulcanized drums 1 lay respectively at stacked sulfuration with 3 both sides.

Claims

1. A preparation process for PVC homogeneous core-permeable coil floor, characterized in that: it has the following steps:

a) Preparing PVC particles through a PVC granulation process;

b) PVC particles are dropped into a calender, and calendered into a floor blank;

c) vulcanized molding by a drum vulcanizer;

d) post-processing.

2. The preparation process of PVC homogeneous core-permeable coil floor according to claim 1, characterized in that: said step a is specifically:

1) Put the raw material PVC, plasticizer, stabilizer, lubricant, colorant, and filler into the high-speed mixer according to the formula, and after mixing, enter the low-speed mixer to stir and disperse to make the color masterbatch;

2) The raw material PVC, plasticizer, filler, and the color masterbatch produced in the first step are mixed according to the ratio, and then transported to the twin-screw extruder for plasticization and then into the single-screw extruder for granulation;

3) Add PVC particles of two or more colors prepared in the second step to the mixer according to a certain proportion, mix them, and then enter the single-screw extruder for granulation to prepare two-color or multi-color PVC particles.

3. The preparation process of PVC homogeneous core-permeable coiled flooring according to claim 1, characterized in that: a sprinkler step is added between the steps b and c.

4. The preparation process of PVC homogeneous core-permeable coil floor according to claim 1, characterized in that: the calendering temperature of the calender is 170-180 degrees, and the calendered floor blank enters the drum vulcanizing machine Before preheating, the preheating temperature is 160-180 degrees, the vulcanization temperature of the drum vulcanizer is 160-180 degrees, and the curing time is 8-10 minutes.

5. The preparation process of PVC homogeneous core-permeable coil floor according to claim 1, characterized in that: said drum vulcanizer comprises at least one vulcanization drum (1) and two sets of vulcanization belt circulation devices, said The vulcanized belt circulation device includes at least two rollers (2) and a vulcanized belt (3) set on the rollers (2), and part of the vulcanized belts (3) of the two sets of vulcanized belt circulation devices are stacked on the front and wound around On the vulcanization drum (1), a vulcanization pressure channel is formed between two vulcanization belts (3).

6. The preparation process of PVC homogeneous core-permeable coil floor according to claim 5, characterized in that: there are two vulcanization drums (1), and the two vulcanization drums (1) are respectively located in the stacked vulcanization belt (3) both sides.