CN109914038A

CN109914038A - A kind of preparation process of degradable nonwoven fabrics packaging

Info

Publication number: CN109914038A
Application number: CN201910276435.1A
Authority: CN
Inventors: 高彬
Original assignee: Shandong Cai Hui Packaging Technology Co Ltd
Current assignee: Shandong Cai Hui Packaging Technology Co Ltd
Priority date: 2019-04-08
Filing date: 2019-04-08
Publication date: 2019-06-21

Abstract

The invention discloses a kind of preparation process of degradable nonwoven fabrics packaging, the preparation process is as follows: sorting；It squeezes out, spinning；Networking；Hot rolling；Post-processing；Winding；Printing；Molding；Test package；The beneficial effects of the present invention are: acid fiber by polylactic is a kind of biodegradable environmentally protective fiber of function admirable, bacterial growth can be resisted, is mould proof and tencel that dyeability is good；In today of natural resources increasingly reduction, the non-woven fabrics packaging prepared by acid fiber by polylactic can not only reduce resource consumption, but also can protect environment, improve the non-woven fabrics packaging quality of preparation, there is good promotional value；One-pass molding, it is no longer necessary to which the cumbersome processing of manpower is not necessarily to the great investment of fund, avoids no guarantee with low quality.

Description

A kind of preparation process of degradable nonwoven fabrics packaging

Technical field

The invention belongs to non-woven fabrics to pack preparation technical field, and in particular to a kind of preparation work of degradable nonwoven fabrics packaging Skill.

Background technique

Non-woven fabrics packaging is a kind of green product, and tough and tensile durable, handsome in appearance, good permeability is reusable, can wash Wash, can silk-screen advertisement, shipping mark, validity period it is long；Non-woven fabrics is a kind of non-woven cloth, it directly utilizes high polymer slice, staple fiber Or long filament has soft, ventilative and planar structure tencel system by what various web forming methods and concretion technology were formed The raw material of product, non-woven fabrics packaging are polypropylene, and plastics packed raw material are polyethylene, although two kinds of substance name phases Seemingly, but in chemical structure it differs greatly, the chemical molecular structure of polyethylene has great stability, it is extremely difficult to it degrades, It is finished so plastics package needs just to can decompose for 300 years；And polyacrylic chemical structure is insecure, strand is easy for break It splits, so as to effectively degrade, and enters next step enviromental cycle in nontoxic form, a non-woven fabrics is packaged in 90 It can thoroughly be decomposed in it.

Polylactic acid PLA is a kind of novel biology base and recyclable organism degradable material, using reproducible plant resources, Starch raw material as corn, cassava etc. are proposed is made, and starch raw material obtains glucose via saccharification, then by glucose and centainly Strain fermentation the lactic acid of high-purity is made, then the polylactic acid of certain molecular weight is synthesized by chemical synthesis process, with good Good biodegradability, can be degradable under given conditions by microorganism in nature after use, ultimately generates titanium dioxide Carbon and water, free from environmental pollution, this is highly beneficial to protection environment, is generally acknowledged environment-friendly material.

In order to enable the non-woven fabrics of preparation is packaged in today of natural resources increasingly reduction, resource consumption can be not only reduced, but also Environment can be protected, and further decreases production cost, enhances quality, the present invention provides a kind of degradable nonwoven fabrics packaging thus Preparation process.

Summary of the invention

The purpose of the present invention is to provide a kind of preparation processes of degradable nonwoven fabrics packaging, to solve above-mentioned background technique Middle proposition in order to enable the non-woven fabrics of preparation is packaged in today of natural resources increasingly reduction, can not only reduce resource consumption, but also Environment can be protected, and further decreases production cost, enhances quality.

To achieve the above object, the invention provides the following technical scheme: a kind of degradable nonwoven fabrics packaging preparation process, The preparation process is as follows:

Step 1: sorting: polylactic acid PLA；

Step 2: it squeezes out, spinning: the polylactic acid PLA of step 1 being put into screw extruder, is arrived after melting by metering pump Spinneret；

Step 3: networking: the strand come out from spinneret orifice is cooled down by cold wind, is layered on lace curtaining；

Step 4: the raw material after step 3 networking hot rolling: is passed through into milling train hot-roll forming；

Step 5: aftertreatment technology post-processing: is carried out to the raw material of hot-roll forming；

Step 6: winding: it is wrapped after post-processing；

Step 7: printing: environmentally friendly mill base material is chosen, it is printed using flexible printing machine and screen process press；

Step 8: it molding: is scalded using ultrasonic vertical body multifunctional bag making all-in-one machine one-pass molding；

Step 9: test package: testing to it, and qualified non-woven fabrics packaging carries out packing packaging.

As a preferred technical solution of the invention, the spinneret orifice number of the spinneret is 4500-5500.

As a preferred technical solution of the invention, the raw material of the environmental protection mill base material includes epoxy resin, gathers Ethylene glycol, paraffin wax emulsions, mandarin oil, nonionic surface active agent, titanium dioxide, oxide powder and zinc, acrylic acid ester emulsion and toner.

As a preferred technical solution of the invention, the nonionic surface active agent is alkyl polyoxyethylene Ether.

As a preferred technical solution of the invention, the polylactic acid PLA is novel biology base and renewable life Object degradation polylactic acid.

Compared with prior art, the beneficial effects of the present invention are:

(1) acid fiber by polylactic is a kind of biodegradable environmentally protective fiber of function admirable, can resist bacterial growth, It is mould proof and tencel that dyeability is good；In today of natural resources increasingly reduction, the nonwoven prepared by acid fiber by polylactic Cloth packaging can not only reduce resource consumption, but also can protect environment, improve the non-woven fabrics packaging quality of preparation, there is good popularization Value；

(2) one-pass molding, it is no longer necessary to which the cumbersome processing of manpower is not necessarily to the great investment of fund, avoids no guarantee with low quality.

Detailed description of the invention

Fig. 1 is preparation technology flow chart of the invention.

Specific embodiment

A kind of preparation process of degradable nonwoven fabrics packaging, the preparation process are as follows:

Step 1: sorting: polylactic acid PLA, the PLA are a kind of novel biology base and recyclable organism degradable material, tool There is good biodegradability, it can be degradable under given conditions by microorganism in nature after use；

Step 3: networking: the strand come out from spinneret orifice is cooled down by cold wind, is layered on lace curtaining；Spinneret orifice Number is 4500-5500；

Step 5: aftertreatment technology post-processing: is carried out to the raw material of hot-roll forming；The purpose of post-processing: pack cloth Breadth neat and consistent, size modes are stablized, such as fixed (drawing) width, mechanically or chemically shrinkproof, wrinkle resistant and thermal finalization；Improve cloth packaging Feel, handled using the method for chemistry, mechanical method or two kinds of dual-purposes, cloth packaging made to obtain or reinforce such as soft, rich The comprehensive touch perception such as full, smooth, stiffening, frivolous, such as soft finish, hard finishing；Improve cloth packaging external appearance, improves The gloss of materials, enhancing or the villus for weakening cloth surface of package, such as calendering, text, electric light, fluffing, cropping and fulling are rolled, increase The durability of cloth packaging, the main method using chemistry, prevents daylight, atmosphere or microorganism from prolonging to the damage and erosion of fiber The service life of long cloth packaging, such as it is frost prevention, mothproof；It assigns cloth and packs special function, mainly use certain chemical method, So that it has the function of fire-retardant, gas defence, antifouling, water repellent, antibacterial, antistatic and antiultraviolet etc.；Cotton and other fibers are all Containing rouge waxy substance, chemical fibre contains a certain amount of finish, therefore all has certain flexibility, but fabric scouring and bleaching, It has removed in dyeing and stamp process as the adipocere matter on tail mountain, finish, fabric loses soft feel, or because of technique control It is improper to make, and so that the substance of dyestuff is printed and dyed on fabric, causes feel is coarse to harden, therefore often needs to carry out soft finish to fabric, Fabric soft finish method has mechanical finishing method and two kinds of chemical finishing method, and it is pre- that mechanical soft finish usually uses three roller rubber Contracting machine, suitably reduction operation temperature, pressure, step on the juice, can get relatively soft feel；It can also be carried out by calender soft It arranges, but this softening method is undesirable, mostly uses softening agent to be arranged at present, chemical softening arranges mainly using soft Agent reduces the frictional force of frictional force and fabric and skin between the fiber of fabric, yarn, improves the flexibility of fabric, stone The soft organosilicon of wax, grease, stearic acid, reactivity can be used as the auxiliary agent of fabric soft finish；With biological enzyme to fabric surface into Row processing improves cloth cover finish to reach, and improves the purpose of the performances such as the anti-fuzz balls of fabric, improves the quality of ready-made clothes, place comprehensively Fabric hand feel after reason is smooth, it is not easy to pilling；Using plasticity of the fiber under wet heat condition, yarn is pressed after calendering Flat, the lint to tower, on the surface of fabric, reduces the diffusing reflection degree to light, to improve the gloss of fabric by pressure volt； Hot rolling: calendering at high temperature makes web surface smooth even, generates comparatively ideal gloss；Light Hot rolling: under medium temperature, make face Expect tightness that is soft, but not influencing yarn；Cold-rolling practice: flattening yarn, and yarn arrays are closer, plugs fabric friendship Hole is knitted, web surface is smooth, but does not generate luster effect；Fabric was during printing and dyeing, through relatively holding to the tension being subject to is larger Long, and tension that broadwise is subject to is smaller, thus force the warp-stretch of fabric, broadwise is shunk, and is generated as breadth is uneven, selvedge The problems such as uneven, skew of weft, in order to make fabric have neat uniform stabilization door width, and corrects disadvantages mentioned above, before fabric factory all Need to carry out tentering arrangement, tentering arrangement is that have certain plasticity according to cotton fiber under dampness, slowly adjustment warp State of the weft yarn in fabric, is pulled to predetermined size for fabric width, achievees the effect that uniformity, form stable, tentering is only It can be carried out in certain size range, excessive tentering will lead to fabric breakage, and washing shrinkage is also not achieved after tentering reluctantly Standard removes cotton fiber, and the natural fibers such as wool, fiber crops, silk and the stronger chemical fibre of hygroscopicity have under dampness It is unable to the plasticity of degree, also can reach tentering purpose by similar effect；Fabric can generate contraction under wet, hot situation, The dimensional contraction that fabric occurs in warm water is referred to as shrinkage, with fabric by testing standard washing front and back through to or broadwise length It is poor to spend, account for the percentage of the preceding length of washing indicate the fabric through to or broadwise washing shrinkage；Since fabric adds in textile dyeing and finishing During work, effect of the warp and weft by differential tension has accumulated internal stress, and fabric is when reading wetting, with the pine of internal stress It relaxes, the length of fiber or yarn is shunk, and fabric is caused to shrink, and fabric just deforms, and fabric shrink will lead to clothes change Shape is lost shape, and wearability is influenced, and brings loss to consumer, it is therefore desirable to carry out necessary shiinkproof finish to fabric；It is mechanical pre- Contracting then is imposed through increasing curve height to mechanical presses, then through Song Shigan by fabric first through spraying steam or spraying dewing Dry, the cotton washing shrinkage after preshrunk can be reduced to 1% hereinafter, and due to the mutual extrusion and rubbing between fiber, yarn, fabric The flexibility of feel can also be improved；Wool fabric can be used loose preshrunk processing, fabric through warm water pad or spraying steam after, It is slowly dried under relaxed state, shrinks fabric warp, broadwise all, fabric shrinkage also organizes related, the shrink of fabric with it Degree is often examined with washing shrinkage；

Step 6: winding: it is wrapped after post-processing；

Step 7: printing: environmentally friendly mill base material is chosen, it is printed using flexible printing machine and screen process press； Printing mill base material used is environmentally friendly mill base material, raw material include epoxy resin, polyethylene glycol, paraffin wax emulsions, mandarin oil, it is non-from Subtype surfactant, titanium dioxide, oxide powder and zinc, acrylic acid ester emulsion and toner；Wherein, nonionic surface active agent is alkane Base polyoxyethylene ether；The preparation method of environmentally friendly mill base material, specific steps are as follows: first will under 500r/min revolving speed with ball mill Toner ball milling 10-20min；Then epoxy resin, polyethylene glycol, paraffin wax emulsions, tangerine is added into the toner after ball milling in proportion Skin oil, nonionic surface active agent, titanium dioxide, oxide powder and zinc, acrylic acid ester emulsion, continue ball milling under 500r/min revolving speed 10-20min discharges, and sieving obtains 1.5-3 μm of partial size of environmentally friendly mill base material, the preparation method of the environmental protection mill base material is existing There is technology, can be obtained from number of patent application CN201510115707.1；

Step 8: it molding: is scalded using ultrasonic vertical body multifunctional bag making all-in-one machine one-pass molding, it is no longer necessary to which manpower is numerous Trivial processing is not necessarily to the great investment of fund, avoids no guarantee with low quality, and equipment production is stablized, and sack sealing loci is secured；

Step 9: test package: testing to it, and qualified non-woven fabrics packaging carries out packing packaging；Usual one anti- Water braided packing can fill 500-100 degradable nonwoven fabrics packaging, can also carry out packing packaging by carton.

It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding And modification, the scope of the present invention is defined by the appended.

Claims

1. a kind of preparation process of degradable nonwoven fabrics packaging, which is characterized in that the preparation process is as follows:

Step 1: sorting: polylactic acid PLA；

Step 2: it squeezes out, spinning: the polylactic acid PLA of step 1 being put into screw extruder, by metering pump to spinneret after melting Plate；

Step 6: winding: it is wrapped after post-processing；

2. a kind of preparation process of degradable nonwoven fabrics packaging according to claim 1, it is characterised in that: the spinneret Spinneret orifice number be 4500-5500.

3. a kind of preparation process of degradable nonwoven fabrics packaging according to claim 1, it is characterised in that: the environmental protection color The raw material of pulp material include epoxy resin, polyethylene glycol, paraffin wax emulsions, mandarin oil, nonionic surface active agent, titanium dioxide, Oxide powder and zinc, acrylic acid ester emulsion and toner.

4. a kind of preparation process of degradable nonwoven fabrics packaging according to claim 3, it is characterised in that: the nonionic Type surfactant is alkyl polyoxyethylene ether.

5. a kind of preparation process of degradable nonwoven fabrics packaging according to claim 1, it is characterised in that: the polylactic acid PLA is novel biology base and recyclable organism degradation polylactic acid.