CN209338913U - A kind of production equipment of wood pulp mixing spunlace non-woven material - Google Patents

Abstract

The utility model relates to non-woven material fields, a kind of production equipment of wood pulp mixing spunlace non-woven material is disclosed, successively includes: wet process support lace curtaining (17), dry method trawlnet curtain (16), roller of prewetting (8), A suction unit (9), stripping off device (10), transferring roller (11), the spun-laced technology curtain (15) of circulation conveying, circle drum (14) and the B suction unit (18) of circulation conveying by material conveying direction；The dry method trawlnet curtain is obliquely installed above wet process support lace curtaining, and dry method support lace curtaining, which is equipped with, presses fine roller (7)；Several plain net water jets (12) are equipped with above the spun-laced technology curtain；The circle drum circumferential surface is equipped with several circle drums water jet (13).Soft since wood pulp is uniformly distributed in material after wet tissue is made in non-woven material made from the utility model device, wet tissue is easy to extract, and has certain thickness, absorbency and liquid-keeping more preferable.

Description

A kind of production equipment of wood pulp mixing spunlace non-woven material

Technical field

The utility model relates to non-woven material field more particularly to a kind of productions of wood pulp mixing spunlace non-woven material Equipment.

Background technique

Wet tissue is using non-woven cloth, dust-free paper or other raw materials as carrier, and purified water is industrial water, adds anti-corrosion in right amount The auxiliary materials such as agent, opponent, skin and mucosa or body surface have a kind of amenities of cleaning or bactericidal effect.

With economic development and improvement of living standards, people increasingly pay attention to health and health problem.And wet tissue is made It is also more and more popular with consumers because of its strong cleaning force and this convenient practical two major features for daily cleaning supplies.

It was predicted that middle class and young people, white collar clan group are constantly strong as China's income of residents improves year by year Greatly, life style realizes great change, consumption structure from living type consumption to development-centric consumption, from traditional consumption to novel consumption Upgrading, health idea, cleaning consciousness enhance therewith, and the following wet tissue utilization rate will quickly rise, and drive the wet tissue overall market size Rapid growth.

Traditional spunlace non-woven material is mainly raw material through mechanical carding networking, height using textile staples such as viscose, terylene Jet flow spray net is made at cloth.Spun lacing method is flexible reinforcing, does not damage fiber in technical process, has both maintained the softness of product Property, and product is made to obtain higher breaking strength, therefore, spunlace non-woven material has obtained widely answering in wet tissue field With.

Currently, domestic wet tissue spun laced fabric is mostly using viscose staple fibre, polyester staple fiber as raw material, and wood pulp is with timber For pulp made of raw material, have the characteristics that fibre length is short, rate of liquid aspiration is fast, therefore, in recent years, many spun laced fabric enterprises will Raw material of wood pulp is applied in the production of spunlace non-woven cloth.

Application No. is 201611272691.6 patents of invention to disclose a kind of method for processing nonwoven fabrics, including following step It is rapid: 1) wet-laying raw material to be prepared into preforming net A；2) dry-laying raw material is subjected to mixing networking, pre- spun lacing, is formed pre- Forming net B；3) after being overlapped preforming net A as lower layer as upper layer, preforming net B, progress spun lacing is compound, dries； The raw material of the dry-laying is wood pulp cellulose and ES fiber, and the speed of mixing networking process is 100m/min, pre- spun lacing process The spun lacing pressure of four water jets be respectively 50bar, 55bar, 60bar, 60bar；The invention good anti-bacterial effect, to human body without Harm has the function of anti-corrosion, mould proof, has good absorption pernicious gas and fungistatic effect, suitable for making curable product And wipe product.The program is disadvantageous in that product feel is not soft enough, thickness is lower, product two sides difference on effect is big.

Application No. is 201711225455.3 patents of invention to disclose a kind of terylene wood pulp wet tissue and preparation method thereof, should Wet tissue includes the raw material of following mass percent: wood pulp 30-40%, terylene 60-70%.Wood pulp is adjusted after mashing, mill Moisture content, then papermaking forms, and obtains wood pulp paper；Will be compound with wood pulp paper after dacron carding networking, successively taken out through spun lacing, plain net It inhales, drying cylinder adjusts water content to get terylene wooden oar wet tissue.The invention adjusts wood pulp cloth terylene and wood by adjusting production technology Slurry proportion finds the optimum formula that can replace terylene viscose glue flexibility.The program is disadvantageous in that product is wood pulp on one side Layer, feel is harder, and thickness is lower.

Application No. is 200920283637.0 patents of invention to disclose a kind of composite spun-laced fabric with wood pulp fiber layer, Including wood pulp fiber layer and textile staple layer, wood pulp fiber layer is incorporated into the side of textile staple layer, in which: the spinning The material for knitting short fiber layers is the combination of chemical fibre or natural fiber or chemical fibre and natural fiber.The technical solution by In the structure combined using wood pulp fiber layer with textile staple layer, to not only embody environmentally protective safety, but also improve Intensity, is not in fall to consider phenomenon to be worth doing in use, is suitable as industry or civilian wiper, is additionally had good Water imbibition.The program is disadvantageous in that wood pulp cellulose is located at the one side of product, and two sides difference is larger, feel is harder, thickness compared with It is low.

In conclusion mainly using following two process route to process by the spunlace non-woven material of raw material of wood pulp:

1, using textile staple dry carding networking, then wood pulp paper is answered with dry method fibre web by Spunlace line again It closes, dry；

2, wood pulps wet-laying is directlyed adopt, then again by wet process wood pulp fibre web and dry method textile staple net through spun lacing Equipment is compound, dries.

Currently, although the spunlace non-woven material containing wood pulp cellulose has the characteristics that rate of liquid aspiration is fast in the market, product Still have following deficiency:

1, from the structure of the existing spunlace non-woven material containing wood pulp cellulose, wood pulp cellulose and textile staple net are distinguished Two sides in material is wood pulp cellulose face on one side, be textile staple net on one side, and two sides difference is obvious.Due to wood pulp one Face quality is close, feel is harder, this material very sensitive paper, therefore, also has in the market this material being known as " cleansing tissue "；

2, since the existing wood pulp of spunlace non-woven material containing wood pulp cellulose face quality is close, the thickness of material is compared to general Logical dry method spun laced fabric wants low, and the material for being used for wet tissue then needs certain thickness, has both guaranteed material good hand feeling, has good Good absorbency and liquid-keeping, and guarantee that wet tissue finished product shapes packing good；

3, since the one side of the existing spunlace non-woven material containing wood pulp cellulose is wood pulp cellulose, after wet tissue is made Due to the effect of hydrogen bond in wood pulp cellulose, mutually it is sticked together when hygrometric state between every wet tissue overwood pulp noodle, it is not easy to it extracts out, Influence the use of consumer.

Therefore, in view of problem above of the existing technology, according to the market demand in wet tissue field, it is necessary to develop one kind Not only guaranteed that material had good absorbency, rate of liquid aspiration fast, but also material feel, soft fluffy can be improved, thickness is moderate, takes out Take convenient wood pulp spunlace non-woven material.Wherein, it is crucial for researching and developing a set of production equipment for being exclusively used in above-mentioned non-woven material.

Utility model content

In order to solve the above-mentioned technical problem, the utility model provides a kind of production of wood pulp mixing spunlace non-woven material Equipment.After wet tissue is made in non-woven material made from the utility model device, since wood pulp is uniformly distributed in material, feel Softness, wet tissue is easy to extract, and has certain thickness, absorbency and liquid-keeping more preferable.

The utility model the specific technical proposal is: a kind of production equipment of wood pulp mixing spunlace non-woven material, by material Material conveying direction successively include: the wet process support lace curtaining of circulation conveying, dry method trawlnet curtain, roller of prewetting, A suction unit, stripping off device, Transferring roller, the spun-laced technology curtain of circulation conveying, circle drum and B suction unit.

The dry method trawlnet curtain is obliquely installed above wet process support lace curtaining, and dry method support lace curtaining, which is equipped with, presses fine roller；The water Several plain net water jets are equipped with above thorn support lace curtaining；The circle drum circumferential surface is equipped with several circle drum water jets.

As described in the background art, the wood pulp of wood pulp wet tissue in the prior art is all the one side positioned at wet tissue, due to wood Pulp fibres feel is harder, causes wet tissue flexibility not good enough, and is easy to produce the easy adhesion of hydrogen bond after wood pulp cellulose chance water and causes to take out Take not aspect.And existing wood pulp wet tissue thickness low LCL.The utility model will be wooden by the innovation realization in production equipment thus Pulp fibres are uniformly distributed in wet tissue, to smoothly solve above-mentioned technical problem.

Preferably, stripping off device is the stripping off device with blowing mouth.

Preferably, the A suction unit and B suction unit are vacuum suction apparatus.

With using compared with drying dewatering type, deformation can be squeezed to avoid material using the dehydration of vacuum suction, most The thickness of material is improved to limits, guarantees that material has plentiful feel.And penetrated using hot wind drying mode the reason of It is, spunlace non-woven material mainly uses drying cylinder formula drying and hot-air through type two ways.With drying cylinder formula drying mode phase Than through-air drying is high-efficient, and product is soft and full, can keep the surface structure of product to the maximum extent, improves material The thickness of material.

Preferably, the specification of the spun-laced technology curtain is 100~120 mesh.

Under normal circumstances, the scale specification of spun lacing trawlnet curtain is 90 mesh, in the technical scheme, is done, wet fibre web overlapping Afterwards, dry method fibre web is in upper layer, and wet-laid webs are in lower layer.Wet-laid webs are directly contacted with spun-laced technology curtain, due to wet Wood pulp and superbhort fiber length in method web is shorter, therefore, when carrying out positive spun lacing to fibre web, in rushing for high pressure water flow Hit down, be easy to cause wood pulp or superbhort fiber impacted and, through spun-laced technology curtain be lost, therefore, improve spun-laced technology curtain Density, be set to 100~120 mesh, the loss of wood pulp and superbhort fiber can be significantly reduced, guarantee production it is normal into Row.

Preferably, the spun lacing pressure of the plain net water jet is less than the spun lacing pressure of circle drum water jet.

Conventionally, as technologic limitation, and cannot achieve and wood pulp cellulose is uniformly distributed in wet tissue, and This realizes above-mentioned target by a series of process innovation.

Specifically, the utility model using the above scheme the reason of be:

(1) the hygrometric state fibre web strength after overlapping, prewetting is very low, therefore, first passes through plain net spun lacing and not only improves and will fold It closes fibre web to be transferred on spun-laced technology curtain from wet process support lace curtaining, while being also beneficial to improve speed of production.Fibre web reverse side is used The physical index of material can be improved in circle drum spun lacing, while being also conducive to production mesh and jacquard-type product.

(2) when carrying out spun lacing to overlapping fibre web front, textile staple net is upper, and wet-laid webs are under；It adopts first Fibre web is pierced in advance with lower spun lacing pressure, so that fibre web obtains preliminary strength；Then medium spun lacing pressure is used again Multiple tracks spun lacing is carried out to fibre web front, so that material is obtained the intensity needed, but also wet process will not be kept fine because spun lacing pressure is too big Wood pulp in dimension net is excessively lost, and is guaranteed the fluffy plentiful of material, is kept certain thickness.

When carrying out spun lacing to overlapping fibre web reverse side, wet-laid webs upper, textile staple net under, at this moment using compared with Entanglement efficiency not only can be improved in high spun lacing pressure, obtains higher intensity, more can be by the wood in the wet-laid webs of upper layer Pulp fibres are implanted in the textile staple net of lower layer under the impact of high pressure water flow, so that wood pulp cellulose is evenly distributed on weaving short In web, the side that wood pulp cellulose is in spun lacing material is avoided the occurrence of, spun lacing material Boardy Feeling, paper sense are by force and between layer of cloth Adhesion and extract inconvenient problem.

Compared with prior art, the utility model has the beneficial effects that

(1) congruent manner of adjustment wet-laid webs and textile staple net is taken in the utility model and is cooperated corresponding Technique adjustment is uniformly distributed in wood pulp cellulose in textile staple net, solves feel existing for existing wood pulp spun lacing material Firmly, the strong problem of paper sense；

(2) wood pulp of the utility model product is uniformly distributed in textile staple net, without being distributed across material one side, Therefore, be not in every wet tissue stick to each other due to surface layer is wood pulp in wet tissue processing and use process, solve existing Wood pulp spun lacing material wet tissue be easy to happen hydrogen bond adhesion and caused by be not easy the problem of extracting；

(3) the utility model product during the preparation process, presses fine roller, roller of prewetting, stripping off device and transferring roller by taking Deng design, solves the technical problems such as fibre web overlapping, the transfer of hygrometric state fibre web in the prior art, ensure that the normal production of product.

Detailed description of the invention

Fig. 1 is wood pulp mixing spunlace non-woven material preparation process schematic diagram；

Fig. 2 is wood pulp mixing spunlace non-woven material schematic diagram of product structure.

Appended drawing reference are as follows: wood pulp cellulose 1, textile staple 2, superbhort fiber 3, textile staple net 4, wet-laid webs 5, It overlaps fibre web 6, press fine roller 7, roller 8 of prewetting, A suction unit 9, stripping off device 10, transferring roller 11, plain net water jet 12, circle drum water Tartar 13, circle drum 14, spun-laced technology curtain 15, dry method trawlnet curtain 16, wet process support lace curtaining 17, B suction unit 18.

Specific embodiment

Below with reference to embodiment, the utility model will be further described.

Embodiment

As shown in Figure 1, a kind of production equipment of wood pulp mixing spunlace non-woven material, is successively wrapped by material conveying direction It includes: the wet process support lace curtaining 17 of circulation conveying, dry method trawlnet curtain 16, roller 8 of prewetting, A suction unit 9 (vacuum), 10 (band of stripping off device Have blowing mouth), transferring roller 11, the spun-laced technology curtain 15 (100~120 mesh) of circulation conveying, circle drum 14 and B suction unit 18 it is (true It is empty).

The dry method trawlnet curtain is obliquely installed above wet process support lace curtaining, and dry method support lace curtaining, which is equipped with, presses fine roller 7；The water Multiple plain net water jets 12 are equipped with above thorn support lace curtaining；The circle drum circumferential surface is equipped with several circle drum water jets 13.

Wood pulp mixing spunlace non-woven material is prepared using above-mentioned production equipment, wherein non-woven material unit area matter Amount is 40~120g/m², as shown in Fig. 2, including the ultrashort fibre for the wood pulp cellulose 1,1~5% that mass percent is 24~72% The textile staple 2 of dimension 3 and 75~23% is made.

Wherein, the wood pulp cellulose is softwood pulp fiber, the initial beating of the softwood pulp fiber (after pulp) Degree is 8~17 ° of SR.The textile staple is one or two kinds of combinations of polyester staple fiber, regenerated cellulose staple fiber；Weaving The fineness of staple fiber is 0.9~3.0dtex, and length is 25~55mm.The superbhort fiber is regenerated cellulose superbhort fiber, fine Dimension fineness is 0.9~2.4dtex, and fibre length is 5~10mm.Optionally, the cloth of the wood pulp mixing spunlace non-woven material Face is plain weave, mesh or jacquard structure.

Specific preparation step is as follows:

1) prepared by wet-laid webs:

1.1) wood pulps are sent into pulping pond, by mechanism, make the abundant size degradation of pulp, it is 3~6% that concentration, which is made, Pulp mixed liquor；

1.2) superbhort fiber is sent into dump chest, fiber dispersion is completed in dump chest, it is 0.1~1% that concentration, which is made, Fiber slurry, then with pulp mixed liquor be mixed concentration be 1~3% fiber mixture slurry；Remove fiber mixture slurry In impurity and coma, guarantee slurries in fiber be in single fiber state；

1.3) titled net formation machine will be sent by fan pump after fiber mixture slurry stirring, dilution, on wet forming device Dehydration forms wet-laid webs 5 and is placed on wet process support lace curtaining.

2) prepared by dry method fibre web:

2.1) one or more textile staples are sent into bale opener and carry out preliminary shredding, mixing, then will weaved short Fiber be sent into opener pass through tear make bulk be entangled with fiber reinforced cement composite into fritter or pencil, and remove the impurity in fiber；

2.2) it is fine that bulk fibers will be combed into fasciculation by shredding, mixed textile staple feeding carding machine Dimension, then bundle fiber is combed into single fiber, it is made and is placed in dry method support with certain thickness fluffy textile staple net 4 On lace curtaining.

3) composite spunlaced reinforcing:

3.1) textile staple net is reduced into web caliper through over-voltage fibre roller to exclude the air in textile staple net, Fibre web is compacted；

3.2) the textile staple net after compacting is transferred on wet process support lace curtaining, is overlapped with wet-laid webs；It will It overlaps resulting overlapping fibre web 6 to prewet by roller of prewetting, wherein textile staple net is upper, and wet-laid webs are under；It prewets roller On water jet pressure be 10~20bar.

3.3) the overlapping fibre web after prewetting, which take off by vacuum suction apparatus, to be done, to reduce the moisture content in fibre web, Overlapping fibre web after suction is tightly attached on wet process support lace curtaining；Vacuum suction pressure is -10~-30kpa.

3.4) wet process support lace curtaining drives overlapping fibre web to first pass around stripping off device, is gone out by what is be laterally arranged on stripping off device The air of air port blowout makes the overlapping fibre web being tightly attached on wet process support lace curtaining and wet process support lace curtaining generate gap, then will fold again Conjunction fibre web will overlap fibre web by transferring roller and be transferred on spun-laced technology curtain from wet process support lace curtaining；The wind pressure of stripping off device air outlet For 10~50kPa.

3.5) overlapping fibre web enters spun lacing process under the drive of the spun-laced technology curtain of 100~120 mesh, fine to overlapping first Net is pierced in advance, then uses multiple tracks high-pressure water-jet, to the front progress spun lacing of overlapping fibre web, at this point, textile staple net is upper, Wet-laid webs are under；Then multiple tracks high-pressure water-jet is carried out to overlapping fibre web reverse side again, at this point, wet-laid webs are in upper, weaving Web of staple fibers is under；Wherein, multiple tracks spun lacing is carried out to overlapping fibre web front using plain net spun lacing, it is fine to overlapping using circle drum spun lacing Net reverse side carries out multiple tracks spun lacing；Pre- thorn pressure is 20~40bar；Positive spun lacing pressure is 50~100bar；Reverse side spun lacing pressure For 60~120bar.

3.6) by the hygrometric state material after spun lacing by vacuum suction dehydration device, to remove a part of water of material internal Point, dewatered material moisture content is 60-70%.

4) drying and coiled: by the material drying (hot wind penetrates), coiled after suction, then cut, pack after wood is made Slurry mixing spunlace non-woven material.

Raw materials used in the utility model, equipment is unless otherwise noted the common raw material, equipment of this field；This reality It is unless otherwise noted the conventional method of this field with novel middle method therefor.

The above is only the preferred embodiment of the utility model, not imposes any restrictions to the utility model, all According to the utility model technical spirit any simple modification, change and equivalent transformation to the above embodiments, still fall within The protection scope of technical solution of the present invention.

Claims (6)

1. a kind of production equipment of wood pulp mixing spunlace non-woven material, it is characterised in that: successively include: by material conveying direction The wet process support lace curtaining (17) of circulation conveying, dry method trawlnet curtain (16), roller of prewetting (8), A suction unit (9), stripping off device (10), Transferring roller (11), the spun-laced technology curtain (15) of circulation conveying, circle drum (14) and B suction unit (18)；

The dry method trawlnet curtain is obliquely installed above wet process support lace curtaining, and dry method support lace curtaining, which is equipped with, presses fine roller (7)；The spun lacing It holds in the palm and is equipped with several plain net water jets (12) above lace curtaining；The circle drum circumferential surface is equipped with several circle drums water jet (13).

2. a kind of production equipment of wood pulp mixing spunlace non-woven material as described in claim 1, which is characterized in that removing dress It is set to the stripping off device with blowing mouth.

3. a kind of production equipment of wood pulp mixing spunlace non-woven material as described in claim 1, which is characterized in that the A Suction unit and B suction unit are vacuum suction apparatus.

4. a kind of production equipment of wood pulp mixing spunlace non-woven material as described in claim 1, which is characterized in that the water The specification of thorn support lace curtaining is 100~120 mesh.

5. a kind of production equipment of wood pulp mixing spunlace non-woven material as described in claim 1, which is characterized in that described flat Net water jet is located at the dry state web side of non-woven material, the circle drum hygrometric state fiber of the water jet towards non-woven material Net side.

6. a kind of production equipment of wood pulp mixing spunlace non-woven material as claimed in claim 5, which is characterized in that described flat The spun lacing pressure of net water jet is less than the spun lacing pressure of circle drum water jet.