CN211872235U - Device is applyed with degradable water thorn non-woven fabrics and nursing agent to nursing - Google Patents
Device is applyed with degradable water thorn non-woven fabrics and nursing agent to nursing Download PDFInfo
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Abstract
The utility model relates to the field of non-woven fabrics, and discloses a degradable spunlace non-woven fabric for nursing and a nursing agent applying device, wherein the spunlace non-woven fabric is formed by mutually intertwining wood pulp fibers and degradable ultra-short fibers; the surfaces of the wood pulp fiber and the degradable ultra-short fiber are adhered with a dry-state nursing agent; through holes are distributed on the surface of the spunlace nonwoven fabric; the through holes divide the fibers in the spunlace non-woven fabric into longitudinal fiber bundles and transverse fiber bundles which are interwoven longitudinally and transversely; the thickness of the longitudinal fiber bundle is different from that of the transverse fiber bundle, and the fiber bundles with the same thickness and the same direction form a plurality of fiber bundle raised strips which are parallel to each other on the surface of the spunlace non-woven fabric. The utility model discloses water thorn non-woven fabrics is easily broken up, can degrade naturally, be difficult for the fluff, and the froth effect is good.
Description
Technical Field
The utility model relates to a non-woven fabrics field especially relates to a device is applyed with degradable water thorn non-woven fabrics and nursing agent to nursing.
Background
The existing spunlace nonwoven fabric is mainly made by taking viscose, terylene and other textile fibers as raw materials, and then mechanically carding to form a net and carrying out high-pressure jet-flow net-spraying to form cloth. In the process of processing the fiber by adopting the spunlace process, the fiber is not rigidly extruded and damaged, so that the physical and mechanical properties of the fiber are not influenced, and the inherent softness of the fiber web is kept to the maximum extent. Due to the unique advantages of the product, the disposable sanitary product becomes the largest application field of the spunlace non-woven fabric, and about 72 percent of spunlace non-woven fabrics are used for disposable sanitary products such as wiping towels, facial cleaning towels, cotton soft towels, makeup removing cottons, makeup removing towels, beauty towels, various wet tissues and the like.
At present, most spunlace nonwoven fabrics are only base materials of disposable sanitary products, and the materials themselves have no functionality. Some of the cleaning, skin moistening and other care functions required in the use of the sanitary products are mostly realized by means of subsequent off-line or wet processing. In the subsequent wet processing (such as wet tissues, facial masks, makeup removal towels and the like), a certain bacteriostatic agent is usually added to ensure that the product is not deteriorated after being stored for a long time. The traditional wet processing mode has long production flow, complex process, high product cost and inconvenient carrying of finished products due to heavy water content. In recent years, some industry have applied functional chemicals directly to materials during the manufacture of nonwoven materials to provide the nonwoven materials with special functionality as well as the substrate of hygiene articles.
The invention with the application number of 201710629028.5 discloses a shampoo-bath bubble towel and a production process thereof, wherein the shampoo-bath bubble towel comprises a shampoo-bath bubble towel non-woven fabric base material, dry shampoo is uniformly attached to the inner part and the surface of the non-woven fabric base material, and the surface of the non-woven fabric base material is provided with a convex structure formed by a spunlace jacquard or embossing process. The disposable shampoo washing bubble towel with the skin cleaning function is formed by combining the shampoo and the cotton non-woven fabric base material, avoids the problem of bacterial breeding caused by repeated use of the washing towel, has a simple structure, is convenient to carry, and is suitable for being carried and used by tourists and business people. The technical scheme has the defects that the raised spunlace cloth has low friction resistance, is easy to fluff in use and causes fiber shedding; the dry shampoo is not easy to release due to the structure of the non-woven fabric substrate, the foaming amount is low, and the skin cleaning effect is limited; the conventional spunlace fabric base material cannot be dispersed and naturally degraded.
The invention patent with application number 201910589001.7 discloses a makeup removing dry towel, which comprises the following components in parts by weight: 30-50 parts of purified water, 20-30 parts of potassium cocoyl glycinate, 20-30 parts of cocamidopropyl betaine, 20-30 parts of glycerol, 5-10 parts of propylene glycol, 15-20 parts of lotus embryo extract and 5-10 parts of butanediol. The invention neutralizes the raw material components by adopting the cocamidopropyl betaine and the potassium cocoyl glycinate, has good compatibility with various surface active solvents, can effectively release each effective component in the raw materials, does not need to be washed by a large amount of clear water when in use, is convenient to carry, has strong makeup removing capability, can remove the cosmetic residue on the face without repeated friction of a wet tissue, can not cause skin sensitivity in the long-time use process, has strong cleaning and adsorbing effects because the dry tissue contains the black carbon powder fiber membrane cloth, can take away the redundant grease on the face and can better deeply adsorb the facial dirt and the cosmetic residue, and restore the clean and smooth skin. The scheme has the defects that the fiber membrane cloth with a common structure is easy to fluff in use; the length of the common black carbon powder fiber is long, and the material can not be dispersed and naturally degraded.
The invention patent with the application number of 201811528689.X discloses a preparation method of a skin-moistening non-woven fabric, the skin-moistening non-woven fabric and application, the non-woven fabric is formed by flexibly entangling two fibers through a spunlace process, the original characteristics of the fibers are not influenced, and the fibers are not damaged; the spunlace non-woven fabric is used as a substrate, and the pure natural formula essence is further uniformly attached to the substrate in an infiltration manner through a microemulsion atomization process, so that the loss of the formula essence is avoided, and the skin care effect is ensured; meanwhile, the skin-friendly property of the non-woven fabric is not influenced in the infiltration process, the treated non-woven fabric is still soft and comfortable, and the prepared skin-moistening non-woven fabric is uniform in thickness and high in elongation. The defects of the scheme are that the conventional-structure spunlace non-woven fabric is easy to fluff, the conventional fiber is long in length, and the material cannot be dispersed and naturally degraded.
Through the analysis of the products in the prior art, the functional water-punched non-woven fabric with chemicals directly added into the non-woven material at present mainly has the following problems:
1. the prior functional spunlace nonwoven fabric mostly takes viscose, terylene and other textile fibers as raw materials, and the manufactured sanitary product cannot be thrown away in a toilet and dispersed and cannot be naturally degraded after being used, so that along with the expansion of the market of disposable sanitary products, the white pollution can bring great burden to environmental protection for a long time.
2. At present, the fabric appearance of the functional spunlace non-woven fabric is mostly plain weave or concave-convex lines, and the fiber entanglement fastness in the material is low, so that fluffing is easy to occur in use, and the fiber is easy to fall off, thereby influencing the experience of consumers.
3. The prior functional spunlace nonwoven fabric has the defects of small foaming amount, low foaming speed and limited cleaning and skin moistening effects in use due to unreasonable chemical formula, and cannot meet the requirements of consumers on efficient skin care.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems that the prior functional spunlace non-woven fabric can not be scattered, can not be naturally degraded, has limited nursing function and is easy to fluff materials, the utility model provides a device is applied to degradable spunlace non-woven fabric and nursing agent for nursing.
The utility model discloses a concrete technical scheme does: a degradable spunlace non-woven fabric for nursing is formed by mutually intertwining wood pulp fibers and degradable ultra-short fibers; dry-state nursing agents are attached to the surfaces of the wood pulp fibers and the degradable ultrashort fibers; and a plurality of through holes are distributed on the surface of the spunlace non-woven fabric.
The through holes divide the fibers in the spunlace non-woven fabric into a plurality of longitudinal fiber bundles which are parallel to each other and a plurality of transverse fiber bundles which are parallel to each other; the thickness of the longitudinal fiber bundle is different from that of the transverse fiber bundle, and a plurality of fiber bundle convex strips which are parallel to each other are formed on the surface of the spunlace non-woven fabric by the high-thickness equidirectional fiber bundles.
The utility model discloses water thorn non-woven fabrics can solve can not break up, can not degrade naturally, the nursing function is limited, the material fluffs the scheduling problem easily that current functional water thorn non-woven fabrics exists, specifically as follows:
1. to the difficult technical problem who breaks up of current functional water thorn non-woven fabrics: the utility model discloses choose wood pulp fiber and degradable ultrashort fiber for use very much as the main materials. The wood pulp fiber is extracted from original tree and belongs to plant fiber. The length of the degradable ultrashort fiber is short, and after the degradable ultrashort fiber is mixed with wood pulp fiber, the fibers are low in entanglement and cohesion and easy to disperse in water. The utility model discloses a wood pulp and degradable ultrashort fiber mix, have both solved the problem that ordinary functional ability water thorn non-woven fabrics can not natural degradation, have also solved ordinary functional ability water thorn non-woven fabrics because of fibre length is long, entangle the degree of locking high, can not break up the problem of scattering in aqueous.
2. To the limited technical problem of current functional water thorn non-woven fabrics nursing function: the utility model discloses well wood pulp fibre and degradable ultrashort fibrous surface attach to have dry state nursing agent, have solved conventional water thorn non-woven fabrics and have not had the functionality, have avoided long, the problem with high costs of flow in the follow-up wet-type course of working.
In addition, the spunlace nonwoven fabric is a layered flexible material, the surface of the existing plain-woven or uneven-woven functional spunlace nonwoven fabric has no holes, which is equivalent to a 'closed' structure, and the spunlace nonwoven fabric is in contact with the skin in a plane or curved surface form in actual use, wherein functional substances on the outer layer fibers are easy to release, and functional substances on the inner layer fibers are difficult to release, so that the functional effect of the material is influenced.
The utility model discloses in, because material surface distribution has the through-hole that runs through, different thickness is set to with horizontal tow in addition to vertical tow, and the material surface forms a plurality of fibre bundles sand grips that are parallel to each other in the equidirectional. Therefore, the material of the utility model is an open type three-dimensional structure at least comprising three thickness layers. Compared with the existing spunlace nonwoven fabric with a common structure, the gradient three-dimensional structure has the following characteristics:
(1) the open material structure increases the contact area between the fibers in the fiber bundle and the outside, and is beneficial to enabling more dry-state care agent to be attached to the fibers in the processing.
(2) When the product is used, the open material structure of the utility model is adopted, one side of the material contacting with the skin is a three-dimensional layer with three gradients, and the holes of the three-dimensional structure increase the contact area of the fiber and the skin, thereby being beneficial to the release of functional substances on the fiber.
(3) The utility model discloses a structure can make the unsmooth sense on material surface stronger, has increased the material surface and has been cleaned the frictional force of face, improves the cleaning performance of material, solves the problem that current water thorn non-woven fabrics cleaning performance is low.
On the other hand, the structure that the longitudinal and transverse fiber bundles are interwoven mutually is the most stable when the material is stretched longitudinally or transversely, and has high breaking strength and small breaking elongation.
To sum up, the utility model discloses a functional water thorn non-woven fabrics of "open" structure not only is superior to ordinary plain weave or concave-convex structure, also has better functional than ordinary mesh type water thorn non-woven fabrics, will the utility model discloses thereby special construction's non-woven material combines the back with dry state nursing agent, can mutually support and gain unexpected technological effect, and not conventional combination or simple function stack.
3. To the easy technical problem who fluffs of current functional water thorn non-woven fabrics: at present, the conventional spunlace material mainly has the cloth cover appearances of plain weave, mesh, concave-convex, jacquard and the like.
The utility model discloses a run through three-dimensional through-hole not plain weave, concave-convex line, also be different from ordinary plane mesh line. The utility model discloses a with the corresponding round drum of pass that runs through the through-hole, after high-pressure rivers pierce through the fibre net, when meetting the salient point on the round drum, rivers receive the hindrance, rivers upwards with irregular reflection all around, force the fibre on the salient point to move all around and gather each other and entangle, consequently, the salient point position forms the mesh. Compare with cloth cover outward appearance such as plain weave, unsmooth, jacquard weave, when adopting the cloth cover outward appearance that runs through the through-hole, because mesh fibre all around gathers entanglement each other, consequently, the efficiency of entangling each other between the fibre is higher, can improve the cloth cover entangle the fastness, compensate the utility model discloses well wood pulp fibre and super short-staple fiber length are short, entangle the not enough of rate low, satisfy the material and use the requirement to physical index in the use, solve the material surface that exists in the current product and easily fluff, the problem that the fibre easily drops.
As before, in the water thorn processing, adopt the utility model discloses this kind of "open" spatial structure is favorable to the injection of fine high pressure rivers of stranded to the fibre web, has increased the probability that the fibre twined each other in the fibre web to the high pressure rivers that are favorable to passing the fibre web receive the bounce-back of holding the net curtain, alternate the fibre web once more, make the fibre produce the displacement, alternate, twine and embrace and close, effectively improved fibrous tangling efficiency. The improvement of fiber entanglement efficiency can not only improve the breaking strength of the material, but also improve the wear resistance of the material and improve the surface fuzzing property of the material.
4. To the technical problem that the existing functional water-punched non-woven fabric is not easy to degrade: the utility model discloses the wood pulp fibre and the degradable ultrashort fibre of chooseing for use all can the natural degradation, and ordinary water thorn non-woven fabrics nondegradable problem has been solved to this technical characteristic.
Preferably, the hole pattern of the through holes is square, and the mesh number is 8-25 meshes.
The hole pattern penetrating through the through hole is square, so that the longitudinal and transverse fiber strips have stronger directionality, lower elongation at break and more stable structure, and the material is not easy to deform in use.
Preferably, the thickness of the longitudinal fiber bundles is greater than the thickness of the transverse fiber bundles.
Preferably, the difference in height between the longitudinal and transverse fiber bundles on the front side of the spunlace nonwoven is greater than the difference in height between the longitudinal and transverse fiber bundles on the back side of the spunlace nonwoven.
Because the fibre sand grip of different thickness has the difference to the release of the foaming effect of water thorn non-woven fabrics when using, functional material, consequently the utility model discloses the fibre sand grip thickness design that just reverses the two sides with dry-state water thorn non-woven fabrics is different thickness specially, and the user can select the one side to use according to actual need, can promote user's use and experience.
Preferably, the length of the degradable ultrashort fiber is 5-20 mm.
The length of the ultra-short fiber is selected to influence not only the physical properties of the material but also the production and processing of the material. In the hydro-entangled reinforcement, the longer the length of the fiber, the more the chance of entanglement and cohesion between the fibers, and the high entanglement fastness. However, in wet-laid materials, too long a fiber length can cause the fibers to flocculate and kink in water, which is not favorable for dispersion of fiber slurry and affects normal production of the materials. The utility model discloses the team is through long-time a large amount of research, experiment, and the length of confirming ultrashort fibre is 5 ~ 20mm, has both improved the rerum natura index of product, has guaranteed the normal production of wet laid again, has gained beneficial effect.
Preferably, the degradable ultrashort fibers are one or more of artificial cellulose fibers, biomass primary fibers, biomass regenerated fibers and biomass synthetic fibers.
The man-made cellulose fiber belongs to regenerated fiber, and is fiber obtained by dissolving, spinning and regenerating cellulose and derivatives thereof from plants, and comprises common viscose fiber, high wet modulus and strong viscose fiber, cuprammonium fiber, acetate fiber and the like. Biomass fiber refers to fiber made from organisms or biological extracts, i.e., a type of fiber derived from renewable biomass produced by photosynthesis using the atmosphere, water, land, and the like. According to raw materials and production processes, biomass fibers can be divided into three major categories, namely biomass primary fibers, biomass regenerated fibers and biomass synthetic fibers. The utility model discloses the all can natural degradation of man-made cellulose fiber and living beings primary fiber, living beings regenerated fiber, living beings synthetic fiber of well adoption, this technical characteristic has solved ordinary water thorn non-woven fabrics nondegradable problem. In addition, the technical characteristics conform to the national development strategy target, conform to the social development trend and have good economic and social benefits.
Preferably, the wood pulp fibers are virgin wood pulp fibers.
The raw wood pulp is pure raw fiber and is characterized by regular fiber length, sanitation, cleanness and no impurities, is different from the recycled waste paper pulp, and is very suitable for producing disposable sanitary materials.
Preferably, the weight of the wood pulp fibers accounts for 30-85% of the total weight of the spunlace nonwoven fabric; the weight of the degradable ultra-short fibers accounts for 15-70% of the total weight of the spunlace nonwoven fabric.
Preferably, the unit area mass of the degradable spunlace non-woven fabric for nursing is 50-120 g/m2。
A preparation method of degradable spunlace non-woven fabric for nursing comprises the following steps:
1) sending the wood pulp into a pulp crushing pool for fully crushing to prepare wood pulp mixed liquid.
2) Sending the degradable ultra-short fiber into a discharge tank to finish fiber dispersion to prepare ultra-short fiber slurry, and mixing the ultra-short fiber slurry with wood pulp mixed liquid to prepare fiber mixed slurry; removing impurities and fiber clusters, and uniformly distributing the fibers in the slurry.
3) The fiber mixed slurry is stirred, diluted and then sent into an inclined wire forming machine through a slurry flushing pump, dewatered on a wet forming machine, made into a mixed fiber net and placed on a wet net supporting curtain.
4) Peeling the mixed fiber web from the wet-process web support curtain and transferring the mixed fiber web to a spunlace web support curtain; firstly, pre-needling a mixed fiber web, and then carrying out multi-channel spunlacing on the front surface of the mixed fiber web; then introducing the fiber web into a round drum spunlace mechanism; the surface of the round drum is provided with a plurality of round drum through holes, round drum convex points and strip-shaped concave cavities which are parallel to each other; the fiber net is adsorbed on the surface of the round drum under the action of negative pressure and rotates along with the round drum; high-pressure water jet is carried out on the reverse side of the fiber web by high-pressure spunlace heads which are circumferentially arranged and distributed on the outer side of the circular drum, so that fibers in the mixed fiber web are mutually entangled, the fibers positioned on the surface of the circular drum move and are filled into the strip-shaped concave cavities, and a plurality of fiber bundle convex strips which are mutually parallel are formed on the fiber web; the fibers at the convex points of the drum move, gather and entangle to the periphery, and a plurality of through holes are formed on the fiber net.
5) And (3) removing water from the spunlaced material, and primarily drying the spunlaced non-woven fabric through a pre-drying system.
6) Feeding the care agent solution to a care agent application device; meanwhile, the preliminarily dried spunlace nonwoven fabric passes through a care agent applying device, and a care agent solution is applied to the spunlace nonwoven fabric.
7) Drying and coiling the spunlace non-woven fabric to prepare the degradable spunlace non-woven fabric for nursing.
Because the utility model discloses the structure of water thorn non-woven fabrics is comparatively special, simply can't make this special construction's water thorn non-woven fabrics according to current preparation technology. Therefore, the utility model discloses the team has pointed to improve preparation technology, can make smoothly under above-mentioned technology the utility model discloses special construction's water thorn non-woven fabrics.
Preferably, in the step 1), the concentration of the wood pulp mixed solution is 3-6 wt%.
Preferably, in the step 2), the concentration of the ultra-short fiber slurry is 0.1 to 1 wt%; the concentration of the fiber mixed slurry is 1-3 wt%.
Preferably, in the step 4), the front surface of the mixed fiber web is subjected to multiple spunlacing processes by adopting flat-web spunlacing;
preferably, in the step 4), the pre-pricking pressure is 20-40 bar; the front spunlace pressure is 50-100 bar; and the reverse spunlace pressure is 60-120 bar.
Preferably, in the step 5), a rolling and sucking mechanism is adopted for dehydration, the spunlaced material is partially dehydrated through a rolling dry roller, and then water is extracted through a suction roller, and the water content of the dehydrated material is 60-70%.
At present, two dewatering modes of rolling drying and vacuum suction are mainly adopted in the spunlace production. Compared with a rolling and drying dehydration mode, the vacuum suction dehydration mode can prevent the material from being extruded and deformed, ensure the integrity of the through hole pattern, improve the thickness of the material to the maximum extent, be beneficial to applying a subsequent cleaning agent and ensure that the material has plump hand feeling. But because the utility model provides a water thorn non-woven fabrics surface distribution has the through-hole that runs through, if adopt the vacuum suction mode dehydration alone can reduce production efficiency.
Therefore, in order to make the material have the three-dimensional effect, the utility model combines the rolling and the pumping, namely the upper rolling and the lower pumping; the material after the water thorn passes through in the middle of rolling dry roll and the suction roll that upper and lower set up, rolls futilely and accomplishes in step with the suction, not only can form smoothly on the water thorn non-woven fabrics the utility model discloses a special construction makes the material reach the performance requirement, can promote production efficiency moreover by a wide margin.
In addition, the water content of the material after the spunlace is high, and if the care agent is directly applied, the phenomenon of 'migration' is generated, so that the care agent is not attached to the fibers, and the product quality is influenced. Therefore, the utility model discloses in, the material after the water thorn dehydration is earlier dried through the stoving system in advance, makes the material be preliminary dry state before getting into and applying the device to guarantee that the nursing agent capacity, evenly apply to the water thorn material on.
Preferably, in the step 6), the nursing agent applying device adopts a foam coating mode, and the nursing agent solution is applied to the spunlace nonwoven fabric in a foam-like mode; the foam viscosity in the foam coating is 1100-1600 cps; the stirring speed in the application process is 170-200 r/min.
The foam has thickening effect, can prevent the permeation of the care agent into the fiber, and does not need to add the thickening agent into the care agent solution; the foam coating is processed with low liquid supply amount, so that the using amount of a care agent can be greatly reduced, the energy consumption is reduced, and the product cost is obviously reduced.
Preferably, in the step 7), a drying cylinder drying mode is adopted, the drying noise pressure is configured to be high in the front and low in the back, and the drying noise pressure is 0.15-0.3 MPa.
In the production process of the spunlace non-woven fabric, the drying temperature can directly influence the hand feeling of the product. The drying temperature is too high, and the hand feeling of the material is hard. And the utility model discloses the product mainly used sanitary material needs to feel soft, full, consequently, need dry by the fire the in-process of making an uproar through control and dry by the fire pressure messenger of making an uproar and make the temperature of making an uproar can not be too high to guarantee the performance requirement of product.
Preferably, the care agent application device comprises: a plurality of foam nozzle pipes, two liquid carrying rollers, a pulp tank and a plurality of cloth guide rollers which are arranged on the frame;
the two liquid-carrying rollers are tangent and rotate reversely, a foam nozzle pipe is arranged above each liquid-carrying roller and is connected with a matched foam generator through a pipeline; the slurry groove is arranged below the two liquid carrying rollers, and the cloth guide roller is arranged at the front end and the rear end of the liquid carrying rollers.
The utility model discloses the working process of device is applyed to nursing agent does: the nursing agent solution and the compressed air pass through a delivery pump, respectively pass through a foam generator in a quantitative and continuous mode according to the mixing proportion required by the process, and are mixed and sheared to enable the nursing agent to form a foam state; the foam of the nursing agent flows out of the foam nozzle pipe through a pipeline to fill the intersection of the roll surfaces of the two liquid-carrying rollers; the degradable spunlace non-woven fabric passes through the intersection of the roll surfaces of the two liquid-carrying rollers, passes through the care agent foam layer, and is uniformly coated with care agent foam through the rotation of the liquid-carrying rollers; and drying and coiling to prepare the degradable spunlaced non-woven fabric for nursing. The roller type foam applying device has the advantages of simple structure, low investment cost and consistent foam layer thickness.
Preferably, the foam nozzle pipe is controlled by a driving mechanism to reciprocate along the width direction of the spunlace non-woven fabric during operation. The design can ensure that the material can uniformly apply the care agent in the width direction.
Preferably, the two liquid-carrying rollers are provided with a distance adjusting device, and the gap between the two liquid-carrying rollers can be adjusted according to needs.
Preferably, a foam recovery system is arranged in the stock chest, and the nursing agent falling in the stock chest is recovered through a pipeline.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) the utility model discloses a wood pulp fiber and degradable ultra-short fiber all can degrade naturally, can directly break up in the sewer after the health supplies that adopts this textile material to make uses, solved the unable natural degradation of prior art product, problem that can not break up, alleviated environmental protection's pressure.
(2) The utility model discloses a set up evenly distributed's the through-hole that runs through on the material surface, the water thorn non-woven fabrics of this structure is applyed the nursing agent after, can play the technological effect that is favorable to functional material release on the fibre.
(3) The utility model discloses apply the fiber surface with the nursing agent at water thorn non-woven fabrics course of working, make the nursing agent fix in the water thorn material with the form of dry attitude, solved long, the processing complicacy of follow-up wet attitude processing technology flow, problem with high costs.
(4) The utility model discloses well degradable water thorn non-woven fabrics nursing agent that adopts applys device simple structure, reasonable in design, convenient operation, has guaranteed the application needs of nursing agent in the material production process.
Drawings
FIG. 1 is a schematic view of a three-dimensional structure of a degradable spunlace nonwoven fabric for nursing use according to the present invention;
FIG. 2 is a schematic view of a cross-sectional structure of the degradable spunlace nonwoven fabric for nursing use of the present invention;
FIG. 3 is a schematic structural view of the nursing agent applying device of the present invention;
FIG. 4 is a schematic view of a drum in the manufacturing process of the present invention;
fig. 5 is a schematic left-side sectional structure view of a round drum in the manufacturing process of the present invention.
The reference signs are: degradable spunlace non-woven fabrics 1 for nursing, longitudinal fiber bundles 2, transverse fiber bundles 3, through holes 4, foam nozzle pipes 5, liquid carrying rollers 6, cloth guide rollers 7, pulp troughs 8, nursing agents 9, circular drum through holes 10, circular drum convex points 11 and strip-shaped concave cavities 12.
Detailed Description
The present invention will be further described with reference to the following examples.
General examples
As shown in figure 1, a degradable spunlace nonwoven fabric 1 for nursing is formed by mutually intertwining wood pulp fibers and degradable ultra-short fibers; dry-state nursing agents are attached to the surfaces of the wood pulp fibers and the degradable ultrashort fibers; and a plurality of through holes 4 are distributed on the surface of the spunlace non-woven fabric.
The through holes divide the fibers in the spunlace non-woven fabric into a plurality of longitudinal fiber bundles 2 and a plurality of transverse fiber bundles 3 which are parallel to each other; as shown in fig. 2, the thickness of the longitudinal fiber bundle 2 is different from the thickness of the transverse fiber bundle 3, and the high-thickness equidirectional fiber bundles form a plurality of fiber bundle convex strips parallel to each other on the surface of the spunlace nonwoven fabric.
Preferably, the hole pattern of the through holes is square, and the mesh number is 8-25 meshes. The length of the degradable ultrashort fiber is 5-20 mm.
Preferably, the thickness of the longitudinal fiber bundles is greater than the thickness of the transverse fiber bundles.
Preferably, the difference in height between the longitudinal and transverse fiber bundles on the front side of the spunlace nonwoven is greater than the difference in height between the longitudinal and transverse fiber bundles on the back side of the spunlace nonwoven.
Preferably, the degradable ultrashort fibers are one or more of artificial cellulose fibers, biomass primary fibers, biomass regenerated fibers and biomass synthetic fibers. The wood pulp fibers are virgin wood pulp fibers.
Preferably, one or more of a surfactant, an emollient, a preservative and a fragrance are included in the dry conditioning agent.
Preferably, the weight of the wood pulp fibers accounts for 30-85% of the total weight of the spunlace nonwoven fabric; the weight of the degradable ultra-short fibers accounts for 15-70% of the total weight of the spunlace nonwoven fabric.
Preferably, the surfactant accounts for 20-79% of the total weight of the dry-state care agent; the emollient accounts for 20-79% of the total weight of the dry-state care agent. Further preferably, the surfactant accounts for 40-60% of the total weight of the dry care agent; the emollient accounts for 40-60% of the total weight of the dry care agent.
Preferably, the degradable spunlace nonwoven fabric for nursing is preparedThe mass per unit area is 50 to 120g/m2。
A preparation method of degradable spunlace non-woven fabric for nursing comprises the following steps:
1) and sending the wood pulp into a pulp crushing pool for fully crushing to prepare wood pulp mixed liquid with the concentration of 3-6 wt%.
2) Sending the degradable ultra-short fibers into a discharge tank to finish fiber dispersion, preparing ultra-short fiber slurry with the concentration of 0.1-1 wt%, and mixing the ultra-short fiber slurry with wood pulp mixed liquid to prepare fiber mixed slurry with the concentration of 1-3 wt%; removing impurities and fiber clusters, and uniformly distributing the fibers in the slurry.
3) The fiber mixed slurry is stirred, diluted and then sent into an inclined wire forming machine through a slurry flushing pump, dewatered on a wet forming machine, made into a mixed fiber net and placed on a wet net supporting curtain.
4) Peeling the mixed fiber web from the wet-process web support curtain and transferring the mixed fiber web to a spunlace web support curtain; firstly, pre-needling a mixed fiber net, wherein the pre-needling pressure is 20-40 bar; then carrying out multiple spunlacing on the front surface of the mixed fiber web; the front spunlace pressure is 50-100 bar; then introducing the fiber web into a round drum spunlace mechanism;
as shown in fig. 4 and 5, the surface of the drum is provided with a plurality of drum through holes 10, drum convex points 11 and strip-shaped cavities 12 which are parallel to each other; the strip-shaped concave cavities 12 are distributed in parallel, and the round drum protruding points 11 and the round drum through holes are arranged between every two adjacent strip-shaped concave cavities at intervals. The fiber net is adsorbed on the surface of the round drum under the action of negative pressure and rotates along with the round drum; high-pressure water jet jetting is carried out on the reverse side of the fiber web by high-pressure spunlace heads which are circumferentially arranged and distributed on the outer side of the circular drum, and the spunlace pressure on the reverse side is 60-120 bar; fibers in the mixed fiber web are mutually entangled, the fibers on the surface of the round drum are filled into the strip-shaped concave cavities in a moving way, and a plurality of fiber bundle convex strips which are mutually parallel are formed on the fiber web; the fibers at the convex points of the drum move, gather and entangle to the periphery, and a plurality of through holes are formed on the fiber net.
5) And (3) removing water from the spunlaced material by using a rolling and absorbing mechanism, dehydrating the spunlaced material by using a rolling and drying roller part, pumping out the water by using a suction roller, and primarily drying the spunlaced non-woven fabric by using a pre-drying system, wherein the water content of the dehydrated material is 60-70%.
6) Feeding the care agent solution to a care agent application device; meanwhile, the primarily dried spunlace non-woven fabric passes through a care agent applying device, and a care agent solution is applied to the spunlace non-woven fabric in a foam form; the foam viscosity in the foam coating is 1100-1600 cps; the stirring speed in the application process is 170-200 r/min.
7) Drying the spunlace non-woven fabric by adopting a drying cylinder mode, wherein the drying pressure is high in the front and low in the rear and is 0.15-0.3 MPa; coiling to prepare the degradable spunlaced non-woven fabric for nursing.
As shown in fig. 3, the care agent applying apparatus includes: a plurality of foam nozzle pipes 5, two liquid carrying rollers 6, a pulp tank 8 and a plurality of cloth guide rollers 7 which are arranged on the frame.
The two liquid carrying rollers 6 are tangent and rotate reversely, and the two liquid carrying rollers 6 are provided with a distance adjusting device. A foam nozzle pipe 6 is arranged above each liquid carrying roller 6, and the foam nozzle pipe 6 is connected with a matched foam generator through a pipeline; and the foam nozzle pipe 6 is controlled by a driving mechanism to reciprocate along the width direction of the spunlace non-woven fabric during working. The stock chest 8 is arranged below the two liquid carrying rollers 6, and a foam recovery system is arranged in the stock chest 8. The cloth guide roller 7 is arranged at the front end and the rear end of the liquid carrying roller 6.
The working process of the nursing agent applying device is as follows: the nursing agent 9 and the compressed air pass through a delivery pump, respectively pass through a foam generator in a quantitative and continuous mode according to the mixing proportion required by the process, and are mixed and sheared to form a foam state; the foam of the nursing agent flows out of the foam nozzle pipe 5 through a pipeline to fill the intersection of the roll surfaces of the two liquid-carrying rolls 4; the degradable spunlace non-woven fabric passes through the intersection of the roll surfaces of the two liquid-carrying rollers, passes through the care agent foam layer, and is uniformly coated with care agent foam through the rotation of the liquid-carrying rollers 6; and drying and coiling to prepare the degradable spunlaced non-woven fabric 1 for nursing.
Example 1
As shown in figures 1-2, a degradable spunlace nonwoven fabric 1 for nursing use, with unit areaThe mass is 80g/m2The super-short fiber is formed by mutually intertwining 50 percent of raw wood pulp fiber and 50 percent of viscose super-short fiber; the length of the viscose ultrashort fiber is 10 mm. The surfaces of the wood pulp fiber and the viscose ultrashort fiber are adhered with dry-state nursing agents; the surface of the spunlace nonwoven fabric is distributed with 10-mesh square through holes 4 which penetrate through the front side and the back side. The through holes divide the fibers in the spunlace non-woven fabric into a plurality of parallel longitudinal fiber bundles 2 and a plurality of parallel transverse fiber bundles 3; the thickness of the longitudinal fiber bundle is larger than that of the transverse fiber bundle, and a plurality of fiber bundle convex strips which are parallel to each other are formed on the surface of the spunlace non-woven fabric by the high-thickness longitudinal fiber bundle.
The dry-state nursing agent contains a surfactant, an emollient, a preservative and essence; the weight percentage of the total amount of the surfactant and the dry-state care agent is 48 percent; the weight percentage of the total amount of the emollient and the dry state care agent is 48%.
A preparation method of degradable spunlace non-woven fabric for nursing comprises the following steps:
(1) sending the wood pulp into a pulp crushing pool to fully crush the pulp to prepare a pulp mixed solution with the concentration of 4 percent;
(2) sending the degradable ultra-short fiber into a discharge tank to finish fiber dispersion, preparing ultra-short fiber slurry with the concentration of 0.5 percent, and mixing the ultra-short fiber slurry with pulp mixed liquor to prepare fiber mixed slurry with the concentration of 2 percent; removing impurities and fiber groups to ensure that the fibers are uniformly distributed in the slurry;
3) the fiber mixed slurry is stirred, diluted and then sent into an inclined wire forming machine through a slurry flushing pump, dewatered on a wet forming machine, made into a mixed fiber net and placed on a wet net supporting curtain.
4) Peeling the mixed fiber web from the wet-process web support curtain and transferring the mixed fiber web to a spunlace web support curtain; firstly, pre-needling a mixed fiber net, wherein the pre-needling pressure is 30 bar; then carrying out multi-channel spunlacing on the front surface of the mixed fiber web by adopting flat-net spunlacing; the front spunlace pressure is 70 bar; the web is then introduced into a drum hydroentangling mechanism.
As shown in fig. 4-5, the surface of the drum is provided with a plurality of drum through holes, drum convex points and strip-shaped concave cavities which are parallel to each other; the fiber net is adsorbed on the surface of the round drum under the action of negative pressure and rotates along with the round drum; high-pressure water jet jetting is carried out on the reverse side of the fiber web by high-pressure spunlace heads which are circumferentially arranged and distributed on the outer side of the circular drum, and the spunlace pressure on the reverse side is 100 bar; fibers in the mixed fiber web are mutually entangled, the fibers on the surface of the round drum are filled into the strip-shaped concave cavities in a moving way, and a plurality of fiber bundle convex strips which are mutually parallel are formed on the fiber web; the fibers at the convex points of the drum move, gather and entangle to the periphery, and a plurality of through holes are formed on the fiber net.
5) And (3) removing water from the spunlaced material by using a rolling and sucking mechanism, dehydrating the spunlaced material by using a rolling and drying roller part, pumping the water out by using a suction roller, and primarily drying the spunlaced non-woven fabric by using a pre-drying system, wherein the water content of the dehydrated material is 65%.
6) Feeding the treating agent solution to the treating agent applying device (as shown in fig. 3); meanwhile, the primarily dried spunlace non-woven fabric passes through a care agent applying device, and a care agent solution is applied to the spunlace non-woven fabric in a foam form; the foam viscosity in the foam coating was 1300 cps; the stirring speed during application was 190 r/min.
7) Drying the spunlace non-woven fabric by adopting a drying cylinder mode, wherein the drying pressure is high at the front and low at the back, and the drying pressure is 0.25 MPa; coiling to prepare the degradable spunlaced non-woven fabric for nursing.
Example 2
Degradable spunlaced non-woven fabric for nursing, and the unit area mass is 50g/m2The super-short staple fiber is formed by mutually intertwining 30 percent of raw wood pulp fiber and 70 percent of tencel super-short fiber; the length of the tencel ultra-short fiber is 5 mm. The surfaces of the wood pulp fiber and the tencel ultra-short fiber are adhered with dry-state nursing agents; the surface of the spunlace nonwoven fabric is distributed with 8-mesh square through holes which penetrate through the front and back of the spunlace nonwoven fabric. The through holes divide the fibers in the spunlace non-woven fabric into a plurality of longitudinal fiber bundles which are parallel to each other and a plurality of transverse fiber bundles which are parallel to each other; the thickness of the longitudinal fiber bundle is larger than that of the transverse fiber bundle, and a plurality of fiber bundle convex strips which are parallel to each other are formed on the surface of the spunlace non-woven fabric by the high-thickness longitudinal fiber bundle.
The dry-state nursing agent contains a surfactant, an emollient, a preservative and essence; the weight percentage of the total amount of the surfactant and the dry-state care agent is 20 percent; the weight percentage of the total amount of the emollient and the dry state care agent is 79%.
A preparation method of degradable spunlace non-woven fabric for nursing comprises the following steps:
(1) sending the wood pulp into a pulp crushing pool to fully crush the pulp to prepare a pulp mixed solution with the concentration of 3 percent;
(2) sending the degradable ultra-short fiber into a discharge tank to finish fiber dispersion, preparing ultra-short fiber slurry with the concentration of 0.1 percent, and mixing the ultra-short fiber slurry with pulp mixed liquor to prepare fiber mixed slurry with the concentration of 1 percent; removing impurities and fiber groups to ensure that the fibers are uniformly distributed in the slurry;
3) the fiber mixed slurry is stirred, diluted and then sent into an inclined wire forming machine through a slurry flushing pump, dewatered on a wet forming machine, made into a mixed fiber net and placed on a wet net supporting curtain.
4) Peeling the mixed fiber web from the wet-process web support curtain and transferring the mixed fiber web to a spunlace web support curtain; firstly, pre-needling a mixed fiber net, wherein the pre-needling pressure is 20 bar; then carrying out multi-channel spunlacing on the front surface of the mixed fiber web by adopting flat-net spunlacing; the front spunlace pressure is 50 bar; the web is then introduced into a drum hydroentangling mechanism.
The surface of the round drum is provided with a plurality of round drum through holes, round drum convex points and strip-shaped concave cavities which are parallel to each other; the fiber net is adsorbed on the surface of the round drum under the action of negative pressure and rotates along with the round drum; high-pressure water jet jetting is carried out on the reverse side of the fiber web by high-pressure spunlace heads which are circumferentially arranged and distributed on the outer side of the circular drum, and the spunlace pressure on the reverse side is 60 bar; fibers in the mixed fiber web are mutually entangled, the fibers on the surface of the round drum are filled into the strip-shaped concave cavities in a moving way, and a plurality of fiber bundle convex strips which are mutually parallel are formed on the fiber web; the fibers at the convex points of the drum move, gather and entangle to the periphery, and a plurality of through holes are formed on the fiber net.
5) And (3) removing water from the spunlaced material by using a rolling and sucking mechanism, dehydrating the spunlaced material by using a rolling and drying roller part, pumping the water out by using a suction roller, and primarily drying the spunlaced non-woven fabric by using a pre-drying system, wherein the water content of the dehydrated material is 60%.
6) Feeding the treating agent solution to the treating agent applying device (as shown in fig. 3); meanwhile, the primarily dried spunlace non-woven fabric passes through a care agent applying device, and a care agent solution is applied to the spunlace non-woven fabric in a foam form; the foam viscosity in the foam coating was 1100 cps; the stirring speed during application was 170 r/min.
7) Drying the spunlace non-woven fabric by adopting a drying cylinder mode, wherein the drying pressure is high at the front and low at the back, and the drying pressure is 0.15 MPa; coiling to prepare the degradable spunlaced non-woven fabric for nursing.
Example 3
Degradable spunlaced non-woven fabric for nursing, and the unit area mass is 120g/m2The bamboo fiber composite material is formed by intertwining 85% of primary wood pulp fibers and 15% of bamboo pulp ultra-short fibers; the length of the ultra-short fiber of the bamboo pulp is 20 mm. The surfaces of the wood pulp fiber and the bamboo pulp ultra-short fiber are adhered with a dry-state nursing agent; 25-mesh square through holes penetrating through the front and back surfaces of the spunlace nonwoven fabric are distributed on the surface of the spunlace nonwoven fabric. The through holes divide the fibers in the spunlace non-woven fabric into a plurality of longitudinal fiber bundles which are parallel to each other and a plurality of transverse fiber bundles which are parallel to each other; the thickness of the longitudinal fiber bundle is smaller than that of the transverse fiber bundle, and a plurality of fiber bundle convex strips which are parallel to each other are formed on the surface of the spunlace non-woven fabric by the transverse fiber bundle with high thickness.
The dry-state nursing agent contains a surfactant, an emollient, a preservative and essence; the weight percentage of the total amount of the surfactant and the dry-state care agent is 79%; the weight percentage of the total amount of the emollient and the dry state care agent is 20%.
A preparation method of degradable spunlace non-woven fabric for nursing comprises the following steps:
(1) sending the wood pulp into a pulp crushing pool to fully crush the pulp to prepare a pulp mixed solution with the concentration of 6 percent;
(2) sending the degradable ultra-short fiber into a discharge tank to finish fiber dispersion, preparing ultra-short fiber slurry with the concentration of 1%, and mixing the ultra-short fiber slurry with pulp mixed liquor to prepare fiber mixed slurry with the concentration of 3%; removing impurities and fiber groups to ensure that the fibers are uniformly distributed in the slurry;
3) the fiber mixed slurry is stirred, diluted and then sent into an inclined wire forming machine through a slurry flushing pump, dewatered on a wet forming machine, made into a mixed fiber net and placed on a wet net supporting curtain.
4) Peeling the mixed fiber web from the wet-process web support curtain and transferring the mixed fiber web to a spunlace web support curtain; firstly, pre-needling the mixed fiber web, wherein the pre-needling pressure is 40 bar; then carrying out multi-channel spunlacing on the front surface of the mixed fiber web by adopting flat-net spunlacing; the front spunlace pressure is 100 bar; the web is then introduced into a drum hydroentangling mechanism.
The surface of the round drum is provided with a plurality of through holes, protruding points and strip-shaped concave cavities which are parallel to each other; the fiber net is adsorbed on the surface of the round drum under the action of negative pressure and rotates along with the round drum; high-pressure water jet jetting is carried out on the reverse side of the fiber web by high-pressure spunlace heads which are circumferentially arranged and distributed on the outer side of the circular drum, and the spunlace pressure on the reverse side is 120 bar; fibers in the mixed fiber web are mutually entangled, the fibers on the surface of the round drum are filled into the strip-shaped concave cavities in a moving way, and a plurality of fiber bundle convex strips which are mutually parallel are formed on the fiber web; the fibers at the convex points of the drum move, gather and entangle to the periphery, and a plurality of through holes are formed on the fiber net.
5) And (3) removing water from the spunlaced material by adopting a rolling and sucking mechanism, dehydrating the spunlaced material by a rolling and drying roller part, pumping the water out by a suction roller, and primarily drying the spunlaced non-woven fabric by a pre-drying system, wherein the water content of the dehydrated material is 70%.
6) Feeding the treating agent solution to the treating agent applying device (as shown in fig. 3); meanwhile, the primarily dried spunlace non-woven fabric passes through a care agent applying device, and a care agent solution is applied to the spunlace non-woven fabric in a foam form; the foam viscosity in the foam coating was 1600 cps; the stirring speed during application was 200 r/min.
7) Drying the spunlace non-woven fabric by adopting a drying cylinder mode, wherein the drying pressure is high at the front and low at the back, and the drying pressure is 0.3 MPa; coiling to prepare the degradable spunlaced non-woven fabric for nursing.
Example 4
This example is different from example 1 in that the difference in height between the longitudinal fiber bundles and the transverse fiber bundles on the front surface of the spunlace nonwoven fabric is larger than that on the back surface of the spunlace nonwoven fabric.
Because the fibre sand grip of different thickness has the difference to the release of the foaming effect of water thorn non-woven fabrics when using, functional material, consequently the utility model discloses the fibre sand grip thickness design of water thorn non-woven fabrics just turning over two sides is different thickness, and the user can select the one side to use according to actual need.
Comparative example 1
Degradable spunlaced non-woven fabric for nursing, with unit area mass of 80g/m2The super-short fiber is formed by mutually intertwining 50 percent of raw wood pulp fiber and 50 percent of viscose super-short fiber; the length of the viscose ultrashort fiber is 10 mm. The surfaces of the wood pulp fiber and the viscose ultrashort fiber are adhered with dry-state nursing agents; the spunlace nonwoven fabric is of a plain structure.
The dry-state nursing agent contains a surfactant, an emollient, a preservative and essence; the weight percentage of the total amount of the surfactant and the dry-state care agent is 48 percent; the weight percentage of the total amount of the emollient and the dry state care agent is 48%.
Comparative example 2
Degradable spunlaced non-woven fabric for nursing, with unit area mass of 80g/m2The super-short fiber is formed by mutually intertwining 50 percent of raw wood pulp fiber and 50 percent of viscose super-short fiber; the length of the viscose ultrashort fiber is 10 mm. The surfaces of the wood pulp fiber and the viscose ultrashort fiber are adhered with dry-state nursing agents; the spunlace non-woven fabric is of a circular concave-convex structure.
The dry-state nursing agent contains a surfactant, an emollient, a preservative and essence; the weight percentage of the total amount of the surfactant and the dry-state care agent is 48 percent; the weight percentage of the total amount of the emollient and the dry state care agent is 48%.
Comparative example 3
Degradable spunlaced non-woven fabric for nursing, with unit area mass of 80g/m2The super-short fiber is formed by mutually intertwining 50 percent of raw wood pulp fiber and 50 percent of viscose super-short fiber; the length of the viscose ultrashort fiber is 10 mm. Wood pulp fiber and viscose super short fiber surface attachmentA dry-state care agent is present; the spunlace non-woven fabric is of a common mesh structure.
The dry-state nursing agent contains a surfactant, an emollient, a preservative and essence; the weight percentage of the total amount of the surfactant and the dry-state care agent is 48 percent; the weight percentage of the total amount of the emollient and the dry state care agent is 48%.
Performance test analysis of the materials of example 1 and comparative examples 1-3
1. Material Care Performance test
Evaluation method: the material care performance is closely related to the foaming effect of the material, and therefore, the foaming speed and the foaming amount of the material are used as the care performance evaluation indexes.
The test method comprises the following steps:
(1) taking 20mm by 20mm samples one by one;
(2) 20mL of deionized water is injected into the measuring cylinder, the sample is put into the measuring cylinder, the sample is immersed in the water, the cover is covered,
(3) the measuring cylinder is in an initial state of being vertical, the plug faces upwards, the bottom of the measuring cylinder is supported by one hand, the plug is clamped by the other hand, the measuring cylinder is turned over by 180 degrees up and down, and the plug is turned over for 80 times in each turning of 180 degrees and 2 times back and forth;
(4) recording the turnover frequency when foaming starts, namely the foaming speed; the height of the blisters after 80 inversions was recorded in a graduated cylinder scale, i.e. the amount of blisters.
And (3) evaluation: the lower the foaming rate (second time), the higher the amount of foaming (mL) indicates that the material has good care properties.
2. Flushability test of material
And (4) testing standard: guidance for evaluation of dispersibility of Disposable nonwoven Fabric and products (INDA/EDANA)
And (3) testing items: slosh box test
The evaluation method comprises the following steps: shaking time: 4 minutes, the passing rate of a 12mm screen is more than or equal to 90 percent.
3. Testing of fuzzing Properties of materials
Definition of terms: fluffing refers to the apparent surface change caused by the fluffing formed by the protrusion of fibers or the protrusion of fiber ends on the surface of a material.
And (4) testing standard: determination of pilling performance of textile fabrics in GB T4802.2-2008 part 2 modified martindale method.
Test samples: example 1, comparative example 2, comparative example 3 material samples.
Grinding materials: the sample itself
The number of rubs: 60 times
Pretreatment: without pretreatment
The evaluation method comprises the following steps: observing and comparing the tested sample and the untested sample, and evaluating the fluffing grade; the grade is divided into five grades, and the higher the grade number is, the better the anti-fluffing performance of the material is.
Product contrast test report
And (4) conclusion: the test report shows that the example 1 sample has a foaming rate that is increased by 42.8% over 3 times compared to the comparative example 1 material; the foaming amount is over 6mL, the improvement is 66.6%, the fluffing performance is higher than 1 grade, and the improvement is 33.3%.
The example 1 sample has a 50% improvement in foaming rate over 4 times compared to the comparative example 2 material; the foaming amount is over 6mL, the improvement is 66.6%, the fluffing performance is higher than 1.5 grade, and the improvement is 60%.
The example 1 sample has a 33.3% improvement in foaming rate over 2 times compared to the comparative example 3 material; the foaming amount exceeds 7mL, the improvement is 87.5 percent, the fluffing performance is higher than 1 grade, and the improvement is 33.3 percent.
The raw materials and the equipment used in the utility model are common raw materials and equipment in the field if no special description is provided; the methods used in the present invention are conventional methods in the art unless otherwise specified.
The above, only be the utility model discloses a preferred embodiment, it is not right the utility model discloses do any restriction, all according to the utility model discloses the technical entity all still belongs to any simple modification, change and equivalent transformation of doing above embodiment the utility model discloses technical scheme's protection scope.
Claims (9)
1. The utility model provides a nursing is with degradable water thorn non-woven fabrics which characterized in that: is formed by mutually intertwining wood pulp fibers and degradable ultra-short fibers; dry-state nursing agents are attached to the surfaces of the wood pulp fibers and the degradable ultrashort fibers; a plurality of through holes are distributed on the surface of the spunlace non-woven fabric;
the through holes divide the fibers in the spunlace non-woven fabric into a plurality of longitudinal fiber bundles which are parallel to each other and a plurality of transverse fiber bundles which are parallel to each other; the thickness of the longitudinal fiber bundle is different from that of the transverse fiber bundle, and the fiber bundle with high thickness forms a plurality of fiber bundle convex strips which are parallel to each other on the surface of the spunlace non-woven fabric.
2. The degradable spunlaced care nonwoven fabric of claim 1, wherein: the hole pattern of the through holes is square, and the mesh number is 8-25 meshes.
3. The degradable spunlaced care nonwoven fabric of claim 1, wherein: the thickness of the longitudinal fiber bundle is larger than that of the transverse fiber bundle, and the height difference between the longitudinal fiber bundle and the transverse fiber bundle on the front surface of the spunlace nonwoven fabric is larger than that on the back surface of the spunlace nonwoven fabric.
4. The degradable spunlaced care nonwoven fabric of claim 1, wherein: the length of the degradable ultrashort fiber is 5-20 mm.
5. The degradable spunlaced care nonwoven fabric of claim 1, wherein: the degradable ultra-short fiber is one of man-made cellulose fiber, biomass primary fiber, biomass regenerated fiber and biomass synthetic fiber; and/or the wood pulp fibers are virgin wood pulp fibers.
6. A care agent application device for preparing a care degradable spunlace nonwoven fabric according to any one of claims 1 to 5, characterized by comprising: a plurality of foam nozzle pipes, two liquid carrying rollers, a pulp tank and a plurality of cloth guide rollers which are arranged on the frame;
the two liquid-carrying rollers are tangent and rotate reversely, a foam nozzle pipe is arranged above each liquid-carrying roller and is connected with a matched foam generator through a pipeline; the slurry groove is arranged below the two liquid carrying rollers, and the cloth guide roller is arranged at the front end and the rear end of the liquid carrying rollers.
7. The care agent application device according to claim 6, wherein: and the foam nozzle pipe is controlled by the driving mechanism to reciprocate along the width direction of the spunlace non-woven fabric during working.
8. The care agent application device according to claim 6, wherein: and the two liquid carrying rollers are provided with a distance adjusting device.
9. The care agent application device according to claim 6, wherein: and a foam recovery system is arranged in the stock chest.
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| CN112760810A (en) * | 2020-12-29 | 2021-05-07 | 福建恒安集团有限公司 | Degradable wet tissue production process, wet tissue and packaging film for wet tissue |
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| CN112760810A (en) * | 2020-12-29 | 2021-05-07 | 福建恒安集团有限公司 | Degradable wet tissue production process, wet tissue and packaging film for wet tissue |
| CN112760810B (en) * | 2020-12-29 | 2022-07-05 | 福建恒安集团有限公司 | Degradable wet tissue production process, wet tissue and packaging film for wet tissue |
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