CN104153036A - Polyester antibacterial wool top and manufacturing method thereof - Google Patents

Abstract

The invention relates to a polyester antibacterial wool top and a manufacturing method thereof. Slices are mixed, using silver-loaded zirconium phosphate with good safety, broad spectrum and high efficiency as antibacterial agent, antibacterial fiber spun by skin-core composite spinning technology, and multi-zone stretching and breaking process to obtain fiber length Polyester antibacterial top that is close to natural wool. The polyester antibacterial top and its manufacturing method have good cohesion with other common fibers, are easy to blend or interweave, and the fabric has good softness and drapability, can be used for conventional dyeing and finishing, and has good resistance to friction, oxidation and corrosion. The physical and chemical properties are stable.

Description

Polyester antibacterial wool top and manufacturing method thereof

technical field

The invention relates to the field of polymer composite fibers, in particular to a polyester antibacterial wool top, which solves the problems in the prior art that textiles are prone to mildew and bad odor.

Background technique

Microorganisms are closely related to people's daily life. Pathogenic microorganisms such as germs and molds can cause great harm to the human body. Therefore, the methods for isolating, suppressing and eliminating these pathogenic microorganisms have emerged as the times require. At present, functional textiles with moisture absorption, perspiration, antibacterial and deodorant properties have become a research and development hotspot in the market.

The production methods of antibacterial textiles mainly include blend spinning method and functional finishing method. The former has long-lasting antibacterial effect and good washability; the latter has a relatively simple treatment process, but there are many three wastes in production, and its washability and antibacterial effect are poor.

Although the antibacterial fiber produced by the blend spinning method has a long-lasting antibacterial function and good washability, it also has weaknesses: the content of antibacterial agents is too low to achieve a good antibacterial effect; Blockage, fracture, low production rate, and the physical index of the fiber does not meet the requirements. Therefore, how to process antibacterial textiles with better antibacterial effect and improve the production rate of antibacterial textiles is an urgent problem to be solved.

Contents of the invention

The purpose of the present invention is to provide a new type of polyester antibacterial wool top and its manufacturing method, which has excellent antibacterial performance, good durability, good cohesion with other common fibers, easy blending or interweaving, good softness and drapability of the fabric, and can be used in conventional fabrics. Excellent dyeing and finishing, good friction resistance, oxidation resistance and corrosion resistance, stable physical and chemical properties.

The technology of the present invention is achieved in this way: a polyester antibacterial wool top, comprising a core layer and a skin layer wrapped outside the core layer, the core layer is a PET layer, and the skin layer is made of PET antibacterial masterbatch containing silver-loaded zirconium phosphate Mixed with PET chips.

Preferably, the skin layer and the core layer are formed by two-component composite spinning and blending, and the composite ratio of the skin layer and the core layer is in the range of 30:70-50:50.

Preferably, the PET antibacterial masterbatch in the cortex is 5-10%, and the PET chips are 90-95%.

Preferably, the content of antibacterial agent silver-loaded zirconium phosphate powder in the PET antibacterial masterbatch is 15%-25%.

The present invention also provides a kind of manufacture method of polyester antibacterial top, comprising the following steps:

Step 1. Using PET (polyester resin) as the matrix, using silver-loaded zirconium phosphate as the antibacterial agent, and adding silver-loaded zirconium phosphate antibacterial powder at 15-25%, to obtain PET antibacterial masterbatch;

Step 2: Use PET slices containing 5-10% PET antibacterial masterbatch as one component, and 100% PET slices as the other component, and make a double group with a composite ratio of 30:70-50:50 Composite spinning to obtain skin-core composite antibacterial pre-oriented filament bundles;

Step 3, using the multi-zone stretching and breaking process of the prepared sheath-core composite antibacterial pre-oriented filament bundle to finally obtain antibacterial polyester wool tops.

Among them, in step 1, 15%-25% silver-loaded zirconium phosphate powder is used as antibacterial agent, PET is used as matrix, coupling agent and dispersant are added, and melt-extruded by twin-screw extruder to obtain PET antibacterial Masterbatch.

In the second step, during composite spinning, the skin-core composite antibacterial pre-oriented filament bundle is obtained through cooling, oiling and winding processes.

In step 3, the skin-core composite antibacterial pre-oriented filament bundles are bundled, stretched, crimped, shaped, broken, one needle comb, two needle combs, ball forming needle combs, packaging, and inspection processes to obtain antibacterial polyester wool tops.

The beneficial effects of the present invention are: the polyester antibacterial wool top and its manufacturing method of the present invention adopt silver-loaded zirconium phosphate with good safety, broad spectrum and high efficiency as the antibacterial agent, adopt the antibacterial fiber spun by skin-core composite spinning technology, and adopt multi- Zone stretching and breaking process, finally obtain polyester antibacterial tops with fiber length close to natural wool, less antibacterial masterbatch, high antibacterial efficiency, antibacterial effect on Staphylococcus aureus, Escherichia coli, etc., and the antibacterial rate reached 99.99%, excellent antibacterial performance, good durability, good cohesion with other common fibers, easy to blend or interweave, soft fabric with good drapability, can be used for conventional dyeing and finishing, and has good resistance to friction, oxidation and resistance. Corrosion ability, stable physical and chemical properties.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Fig. 1 is the structural representation of polyester antibacterial top of the present invention;

Fig. 2 is the manufacturing process flowchart of polyester antibacterial top of the present invention.

Detailed ways

The present invention is described in further detail now in conjunction with accompanying drawing. These drawings are all simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, so they only show the configurations related to the present invention.

The present invention will be described in further detail in conjunction with accompanying drawing and embodiment now. These drawings are all simplified schematic diagrams, and only illustrate the basic structure of the present invention in a schematic manner, so they only show the configurations related to the present invention.

As shown in Figure 1, a polyester antibacterial top comprises a core layer 1 and a skin layer 2 wrapped outside the core layer 1, the core layer 1 is a PET layer, and the skin layer 2 is made of PET antibacterial material containing silver-loaded zirconium phosphate. Masterbatch and PET chips are mixed.

Preferably, the content of antibacterial agent silver-loaded zirconium phosphate powder in the PET antibacterial masterbatch is 15%-25%.

The preparation process of the PET antibacterial masterbatch is as follows: Weigh 20 parts (parts by weight) of silver-loaded zirconium phosphate powder, 80 parts of spinning-grade PET chips, 0.8 parts of coupling agent, and 0.5 part of dispersing agent, and pour the speed at 800 Mix in a high-speed mixer with a speed of 1000 rpm to 1000 rpm, and then extrude and granulate through a Nanjing Keya SHJ-35 parallel twin-screw extruder. According to the order in which materials pass through the twin-screw extruder, it is divided into 4 heating zones and extrusion dies. The heating temperature of each heating zone is set as follows: T ₁ = 200 ° C ~ 210 ° C, T ₂ = 220 ° C ~ 230°C, T ₃ = 270°C ~ 280°C, T ₄ = 260 ~ 270°C, T _die = 265°C, screw speed 120rpm, blending extrusion, cooling, pelletizing to obtain PET antibacterial masterbatch.

Preferably, the PET antibacterial masterbatch in the cortex is 5-10%, and the PET chips are 90-95%.

The preparation process of the skin-core composite antibacterial pre-oriented filament bundle is as follows:

5-10% PET antibacterial masterbatch + 90-95% PET chips → drying → hopper A → screw A melting → metering A

Wherein, the drying process is as follows: PET slices containing PET antibacterial masterbatch and 100% PET slices are dried with SZG double-cone rotary vacuum dryer respectively (temperature 135°C, vacuum degree-0.1MPa), slice moisture content≤50ppm, cooling ( below 80°C) to discharge.

The spinning process is as follows: the dried PET chips containing PET antibacterial masterbatch and 100% PET chips are melted with screw A and screw B respectively, and the melting temperature is 260-300 ° C; through metering, they enter the composite spinner assembly, cortex The composite ratio with the core layer is 30:70-50:50; the cooling blowing temperature is 20-23°C, and the speed is controlled at 0.3-0.5m/s; the winding speed is 2200-2500m/min; the skin-core composite antibacterial pre-orientation is obtained filament tow.

The preparation process of tops is as follows:

Skin-core composite antibacterial pre-oriented filament bundles → clustering → water bath stretching → crimping → shaping → filament bundles,

Filament bundle → direct slitting machine → one needle comb → two needle combs → ball needle comb → packing,

Among them, the water-bath stretching and drafting ratio is controlled at 2.8-3.2; the speed of sliver making, needle combing and ball forming is 220-240m/min; the density of carding needles is 3-6 pieces/cm;

As shown in Figure 2, a kind of manufacture method of polyester antibacterial wool top, comprises the steps:

Step 1. Use 15%-25% silver-loaded zirconium phosphate powder as an antibacterial agent, use PET as a matrix, add coupling agent and dispersant, and melt extrude with a twin-screw extruder to obtain PET antibacterial masterbatch;

Step 2. Dry the PET slices containing PET antibacterial masterbatch and 100% PET slices with SZG double-cone rotary vacuum dryer respectively, and dry the PET slices containing PET antibacterial masterbatch and 100% PET slices with screw A and screw B is melted separately and measured separately, with PET chips containing 5-10% PET antibacterial masterbatch as one component, 100% PET chips as the other component, and a ratio of 30:70-50:50 Composite ratio for two-component composite spinning, after cooling forming, oiling and winding processes, the skin-core composite antibacterial pre-oriented filament bundle is obtained;

Step 3. The prepared skin-core composite antibacterial pre-oriented filament bundles are bundled, stretched in a water bath, crimped, shaped, broken into strips, one needle comb, two needle combs, ball needle combs, packaging, and inspection processes. Obtain antibacterial polyester tops and complete the processing.

Compared with the prior art, the polyester antibacterial top and its manufacturing method of the present invention adopt silver-loaded zirconium phosphate with good safety, broad spectrum and high efficiency as the antibacterial agent, adopt the antibacterial fiber spun by skin-core composite spinning technology, and adopt multi- Zone stretching and breaking process, finally obtain polyester antibacterial tops with fiber length close to natural wool, less antibacterial masterbatch, high antibacterial efficiency, antibacterial effect on Staphylococcus aureus, Escherichia coli, etc., and the antibacterial rate reached 99.99%, excellent antibacterial performance, good durability, good cohesion with other common fibers, easy to blend or interweave, soft fabric with good drapability, can be used for conventional dyeing and finishing, and has good resistance to friction, oxidation and resistance. Corrosion ability, stable physical and chemical properties.

Inspired by the above-mentioned ideal embodiment according to the present invention, through the above-mentioned description content, relevant workers can make various changes and modifications within the scope of not departing from the technical idea of the present invention. The technical scope of the present invention is not limited to the content in the specification, but must be determined according to the scope of the claims.

Claims (8)

1. A polyester antibacterial top, comprising a core layer and a cortex wrapped outside the core layer, characterized in that: the core layer is a PET layer, and the cortex is made of PET antibacterial masterbatch and PET slices containing silver-loaded zirconium phosphate mixed. 2. The polyester antibacterial top as claimed in claim 1, characterized in that: the composite ratio of the skin layer and the core layer is 30:70-50:50. 3. The polyester antibacterial top as claimed in claim 1, characterized in that: the PET antibacterial masterbatch in the cortex is 5-10%, and the PET chips are 90-95%. 4. The polyester antibacterial wool top according to claim 1, characterized in that: the content of antibacterial agent silver-loaded zirconium phosphate powder in the PET antibacterial masterbatch is 15%-25%. 5. the manufacture method of a kind of polyester antibacterial top as claimed in any one of claim 1-4, it is characterized in that: comprise the steps: Step 1. Using PET as the matrix, using silver-loaded zirconium phosphate as the antibacterial agent, and adding silver-loaded zirconium phosphate antibacterial powder at 15-25%, to obtain PET antibacterial masterbatch; Step 2: Use PET slices containing 5-10% PET antibacterial masterbatch as one component, and 100% PET slices as the other component, and make a double group with a composite ratio of 30:70-50:50 Composite spinning to obtain skin-core composite antibacterial pre-oriented filament bundles; Step 3, using the multi-zone stretching and breaking process of the prepared sheath-core composite antibacterial pre-oriented filament bundle to finally obtain antibacterial polyester wool tops. 6. The manufacturing method of polyester antibacterial tops as claimed in claim 5, characterized in that: in step 1, 15%-25% silver-loaded zirconium phosphate powder is used as the antibacterial agent, and PET is used as the matrix, and a coupling agent and The dispersant is melt-extruded with a twin-screw extruder to obtain a PET antibacterial masterbatch. 7. The manufacturing method of polyester antibacterial wool top as claimed in claim 5, characterized in that: in step 2, during composite spinning, the sheath-core composite antibacterial pre-oriented filament bundle is obtained through cooling, oiling and winding processes. 8. The manufacture method of polyester antibacterial wool top as claimed in claim 5, is characterized in that: in step 3, sheath-core composite antibacterial pre-oriented filament bundle is bundled, stretched, crimped, shaped, pulled off, a needle comb, Antibacterial polyester tops are produced through the second needle combing, ball forming needle combing, packaging and inspection processes.